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<section id="dtopotools-module-for-moving-topography">
<span id="dtopotools-module"></span><h1>dtopotools module for moving topography<a class="headerlink" href="#dtopotools-module-for-moving-topography" title="Link to this heading">¶</a></h1>
<p>See also <a class="reference internal" href="okada.html#okada"><span class="std std-ref">Earthquake sources: Fault slip and the Okada model</span></a> for a discussion of the subfault parameters required
for the Okada model of seafloor deformation resulting from slip on a
specified fault plane.</p>
<div class="admonition warning">
<p class="admonition-title">Warning</p>
<p>Starting in Version 5.5.0, the subfault parameter <cite>rise_time</cite>
now refers to the total rise time of a subfault, while <cite>rise_time_starting</cite>
is the rise time up to the break in the piecewise quadratic
function defining the rise. By default <cite>rise_time_ending</cite> is set equal to
<cite>rise_time_starting</cite>. See the module function <cite>rise_fraction</cite> below
for more description. (In earlier versions, <cite>rise_time</cite> read in from csv
files, for example, was erroneously interpreted as <cite>rise_time_starting</cite>
is now.)</p>
</div>
<p>The notebook <a class="reference external" href="http://www.clawpack.org/gallery/_static/notebooks/geoclaw/dtopotools_examples.html">dtopotools_examples.ipynb</a>
illustrates how to use some of the tools.</p>
<p>The notebook <a class="reference external" href="http://www.clawpack.org/gallery/_static/notebooks/geoclaw/Okada.html">Okada.ipynb</a>
illustrates the Okada model using some of these tools.</p>
<p>The file <cite>$CLAW/geoclaw/tests/test_dtopotools.py</cite> contains some tests of these
tools. Looking at these test routines may also give some ideas on
how to use them.</p>
<section id="module-clawpack.geoclaw.dtopotools">
<span id="documentation-auto-generated-from-the-module-docstrings"></span><h2>Documentation auto-generated from the module docstrings<a class="headerlink" href="#module-clawpack.geoclaw.dtopotools" title="Link to this heading">¶</a></h2>
<p>GeoClaw dtopotools Module <cite>$CLAW/geoclaw/src/python/geoclaw/dtopotools.py</cite></p>
<p>Module provides several functions for dealing with changes to topography
(usually due to earthquakes) including reading sub-fault specifications,
writing out dtopo files, and calculating Okada based deformations.</p>
<dl class="field-list simple">
<dt class="field-odd">Classes<span class="colon">:</span></dt>
<dd class="field-odd"><ul class="simple">
<li><p>DTopography</p></li>
<li><p>SubFault</p></li>
<li><p>Fault</p></li>
<li><p>UCSBFault</p></li>
<li><p>CSVFault</p></li>
<li><p>SiftFault</p></li>
<li><p>SegmentedPlaneFault</p></li>
<li><p>Fault1d</p></li>
<li><p>SubFault1d</p></li>
<li><p>DTopography1d</p></li>
</ul>
</dd>
<dt class="field-even">Functions<span class="colon">:</span></dt>
<dd class="field-even"><ul class="simple">
<li><p>plot_dz_contours</p></li>
<li><p>plot_dz_colors</p></li>
<li><p>Mw</p></li>
<li><p>strike_direction</p></li>
<li><p>rise_fraction</p></li>
</ul>
</dd>
</dl>
<dl class="py class">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.CSVFault">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">clawpack.geoclaw.dtopotools.</span></span><span class="sig-name descname"><span class="pre">CSVFault</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">subfaults</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">input_units</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">{}</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">coordinate_specification</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.CSVFault" title="Link to this definition">¶</a></dt>
<dd><p>Fault subclass for reading in CSV formatted files</p>
<p>Assumes that the first row gives the column headings</p>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.CSVFault.read">
<span class="sig-name descname"><span class="pre">read</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">input_units</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">{}</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">coordinate_specification</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">'top</span> <span class="pre">center'</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">rupture_type</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">'static'</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">verbose</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.CSVFault.read" title="Link to this definition">¶</a></dt>
<dd><p>Read in subfault specification at <em>path</em>.</p>
<p>Creates a list of subfaults from the subfault specification file at
<em>path</em>.</p>
</dd></dl>
</dd></dl>
<dl class="py class">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.DTopography">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">clawpack.geoclaw.dtopotools.</span></span><span class="sig-name descname"><span class="pre">DTopography</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">dtopo_type</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.DTopography" title="Link to this definition">¶</a></dt>
<dd><p>Basic object representing moving topography</p>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.DTopography.dZ_at_t">
<span class="sig-name descname"><span class="pre">dZ_at_t</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">t</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.DTopography.dZ_at_t" title="Link to this definition">¶</a></dt>
<dd><p>Interpolate dZ to specified time t and return deformation.</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.DTopography.dZ_max">
<span class="sig-name descname"><span class="pre">dZ_max</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.DTopography.dZ_max" title="Link to this definition">¶</a></dt>
<dd><p>Return max(abs(dZ)) over all dz in self.dZ, the maximum
surface deformation for this dtopo.
DEPRECATE? – it’s now a 1-liner</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.DTopography.make_function">
<span class="sig-name descname"><span class="pre">make_function</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">interp_kwargs</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">{}</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.DTopography.make_function" title="Link to this definition">¶</a></dt>
<dd><p>Create a function of (x,y,t) that returns dZ interpolated to a
point (or to a 1D transect or 2D grid of points if t is scalar,
or a time series at a single point (x,y)).</p>
<dl class="simple">
<dt>The function created:</dt><dd><p>returns the final dZ for times t > self.times.max()
returns 0 if t < self.times.min() or x,y outside the dtopo extent</p>
</dd>
</dl>
<dl class="field-list simple">
<dt class="field-odd">Inputs<span class="colon">:</span></dt>
<dd class="field-odd"><dl class="simple">
<dt><em>interp_kwargs</em>: dictionary of parameter values to be passed to</dt><dd><p>RegularGridInterpolator. See defaults below.</p>
</dd>
</dl>
</dd>
<dt class="field-even">Outputs<span class="colon">:</span></dt>
<dd class="field-even"><p><em>dtopo_func</em>: The function</p>
</dd>
</dl>
<p>See the docstring in dtopo_func below for details on what shapes
its arguments (x,y,t) can be.</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.DTopography.plot_dZ_colors">
<span class="sig-name descname"><span class="pre">plot_dZ_colors</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">t</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">axes</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">cmax_dZ</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">dZ_interval</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">colorbar_ticksize</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">10</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">colorbar_labelsize</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">10</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">fig_kwargs</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">{}</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.DTopography.plot_dZ_colors" title="Link to this definition">¶</a></dt>
<dd><p>Interpolate self.dZ to specified time t and then call module function
plot_dZ_colors.</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.DTopography.plot_dZ_contours">
<span class="sig-name descname"><span class="pre">plot_dZ_contours</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">t</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">dZ_interval</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">0.5</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">axes</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">fig_kwargs</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">{}</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.DTopography.plot_dZ_contours" title="Link to this definition">¶</a></dt>
<dd><p>Interpolate self.dZ to specified time t and then call module function
plot_dZ_contours.</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.DTopography.read">
<span class="sig-name descname"><span class="pre">read</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">dtopo_type</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">verbose</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.DTopography.read" title="Link to this definition">¶</a></dt>
<dd><p>Read in a dtopo file and use to set attributes of this object.</p>
<dl class="field-list simple">
<dt class="field-odd">Input<span class="colon">:</span></dt>
<dd class="field-odd"><ul class="simple">
<li><p><em>path</em> (path) - Path to existing dtopo file to read in.</p></li>
<li><dl class="simple">
<dt><em>dtopo_type</em> (int) - Type of topography file to read. Default is 3</dt><dd><p>if not specified or apparent from file extension.</p>
</dd>
</dl>
</li>
</ul>
</dd>
</dl>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.DTopography.write">
<span class="sig-name descname"><span class="pre">write</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">dtopo_type</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">dZ_format</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">'%.3f'</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.DTopography.write" title="Link to this definition">¶</a></dt>
<dd><p>Write out subfault resulting dtopo to file at <em>path</em>.</p>
<dl class="field-list simple">
<dt class="field-odd">Input<span class="colon">:</span></dt>
<dd class="field-odd"><ul class="simple">
<li><p><em>path</em> (path) - Path to the output file to written to.</p></li>
<li><p><em>dtopo_type</em> (int) - Type of topography file to write out. Default 3.</p></li>
<li><p><em>dZ_format</em> (str) - format for dZ values printed. Default ‘%.3f’</p></li>
</ul>
</dd>
</dl>
</dd></dl>
</dd></dl>
<dl class="py class">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.DTopography1d">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">clawpack.geoclaw.dtopotools.</span></span><span class="sig-name descname"><span class="pre">DTopography1d</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">dtopo_type</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.DTopography1d" title="Link to this definition">¶</a></dt>
<dd><p>Basic object representing moving topography in 1d</p>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.DTopography1d.dZ_at_t">
<span class="sig-name descname"><span class="pre">dZ_at_t</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">t</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.DTopography1d.dZ_at_t" title="Link to this definition">¶</a></dt>
<dd><p>Interpolate dZ to specified time t and return deformation.</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.DTopography1d.dZ_cellave_at_t">
<span class="sig-name descname"><span class="pre">dZ_cellave_at_t</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">t</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">celledges</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.DTopography1d.dZ_cellave_at_t" title="Link to this definition">¶</a></dt>
<dd><p>Interpolate dZ to specified time t and return deformation.</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.DTopography1d.read">
<span class="sig-name descname"><span class="pre">read</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">dtopo_type</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">verbose</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.DTopography1d.read" title="Link to this definition">¶</a></dt>
<dd><p>Read in a dtopo file and use to set attributes of this object.</p>
<dl class="field-list simple">
<dt class="field-odd">Input<span class="colon">:</span></dt>
<dd class="field-odd"><ul class="simple">
<li><p><em>path</em> (path) - Path to existing dtopo file to read in.</p></li>
<li><dl class="simple">
<dt><em>dtopo_type</em> (int) - Type of topography file to read. Default is 3</dt><dd><p>if not specified or apparent from file extension.</p>
</dd>
</dl>
</li>
</ul>
</dd>
</dl>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.DTopography1d.write">
<span class="sig-name descname"><span class="pre">write</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">dtopo_type</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.DTopography1d.write" title="Link to this definition">¶</a></dt>
<dd><p>Write out subfault resulting dtopo to file at <em>path</em>.</p>
<dl class="field-list simple">
<dt class="field-odd">Input<span class="colon">:</span></dt>
<dd class="field-odd"><ul class="simple">
<li><p><em>path</em> (path) - Path to the output file to written to.</p></li>
<li><p><em>dtopo_type</em> (int) - Type of topography file to write out. Default
is 3.</p></li>
</ul>
</dd>
</dl>
</dd></dl>
</dd></dl>
<dl class="py class">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.Fault">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">clawpack.geoclaw.dtopotools.</span></span><span class="sig-name descname"><span class="pre">Fault</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">subfaults</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">input_units</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">{}</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">coordinate_specification</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.Fault" title="Link to this definition">¶</a></dt>
<dd><p>Base Fault class</p>
<p>A class describing a fault possibly composed of subfaults.</p>
<dl class="field-list simple">
<dt class="field-odd">Properties<span class="colon">:</span></dt>
<dd class="field-odd"><p></p></dd>
<dt class="field-even">Initialization<span class="colon">:</span></dt>
<dd class="field-even"><p></p></dd>
<dt class="field-odd">Examples<span class="colon">:</span></dt>
<dd class="field-odd"><p></p></dd>
</dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.Fault.Mo">
<span class="sig-name descname"><span class="pre">Mo</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.Fault.Mo" title="Link to this definition">¶</a></dt>
<dd><p>Calculate the seismic moment for a fault composed of subfaults,
in units N-m.</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.Fault.Mw">
<span class="sig-name descname"><span class="pre">Mw</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.Fault.Mw" title="Link to this definition">¶</a></dt>
<dd><p>Calculate the moment magnitude for a fault composed of subfaults.</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.Fault.containing_rect">
<span class="sig-name descname"><span class="pre">containing_rect</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.Fault.containing_rect" title="Link to this definition">¶</a></dt>
<dd><p>Find containing rectangle of fault in x-y plane.</p>
<p>Returns tuple of x-limits and y-limits.</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.Fault.create_dtopo_xy">
<span class="sig-name descname"><span class="pre">create_dtopo_xy</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">rect</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">dx</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">0.016666666666666666</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">buffer_size</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">0.5</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.Fault.create_dtopo_xy" title="Link to this definition">¶</a></dt>
<dd><p>Create coordinate arrays containing fault with a buffer.</p>
<dl class="field-list simple">
<dt class="field-odd">Input<span class="colon">:</span></dt>
<dd class="field-odd"><ul class="simple">
<li><dl class="simple">
<dt><em>rect</em> - if None, use self.containing_rect</dt><dd><p>Otherwise a list [x1,x2,y1,y2]</p>
</dd>
</dl>
</li>
<li><p><em>dx</em> (int) - Spatial resolution. Defaults to 1” resolution.</p></li>
<li><p><em>buffer_size</em> (float) - Buffer distance around edge of fault in
degrees, defaults to 0.5 degrees.</p></li>
</ul>
</dd>
<dt class="field-even">Output<span class="colon">:</span></dt>
<dd class="field-even"><ul class="simple">
<li><p><em>x,y</em> 1-dimensional arrays that cover the desired rect.
They start at (x1,y1) and may go a bit beyond (x2,y2) depending on dx</p></li>
</ul>
</dd>
</dl>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.Fault.create_dtopography">
<span class="sig-name descname"><span class="pre">create_dtopography</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">x</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">y</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">times</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">[0.0,</span> <span class="pre">1.0]</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">slip_tol</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">0.001</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">verbose</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.Fault.create_dtopography" title="Link to this definition">¶</a></dt>
<dd><p>Compute change in topography and construct a dtopography object.</p>
<p>Use subfaults’ <cite>okada</cite> routine and add all
deformations together.</p>
<p>Raises a ValueError exception if the <em>rupture_type</em> is an unknown type.</p>
<p>Subfaults are ignored if abs(subfault.slip) < slip_tol</p>
<p>If verbose == True then the subfault number is printed as each is
processed to show progress. If verbose is an integer, then it is
printed for the k’th subfault only if mod(k,verbose) == 0.</p>
<p>returns a :class`DTopography` object.</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.Fault.plot_subfaults">
<span class="sig-name descname"><span class="pre">plot_subfaults</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">axes</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">plot_centerline</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">slip_color</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">cmap_slip</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">cmin_slip</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">cmax_slip</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">slip_time</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">plot_rake</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">xylim</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">plot_box</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">True</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">colorbar_shrink</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">1</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">verbose</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">colorbar_labelsize</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">10</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">colorbar_ticksize</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">10</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.Fault.plot_subfaults" title="Link to this definition">¶</a></dt>
<dd><p>Plot each subfault projected onto the surface.</p>
<p><em>axes</em> can be passed in to specify the <em>matplotlib.axes.AxesSubplot</em>
on which to add this plot. If <em>axes == None</em>, a new figure window
will be opened. The <em>axes</em> on which it is plotted is the return
value of this call.</p>
<p>If <em>plot_centerline == True</em>, plot a line from the centroid to the
top center of each subfault to show what direction is up-dip.</p>
<p>If <em>slip_color == True</em> then use the color map <em>cmap_slip</em>
(which defaults to <em>matplotlib.cm.jet</em>) to color the subplots based
on the magnitude of slip, scaled between <em>cmin_slip</em> and <em>cmax_slip</em>.
(If these are <em>None</em> then scaled automatically based on range of slip.)
If <em>slip_time == None</em> then colors are based on the final slip.
For dynamic faults, <em>slip_time</em> can be set to a time and the
dynamic timing of each subfault will be used to compute and
plot the slip at this time.</p>
<p>If <em>plot_rake == True</em>, plot a line from the centroid pointing in
the direction of the rake (the direction in which the top block is
moving relative to the lower block. The distance it moves is given
by the <em>slip</em>.)</p>
<p><em>xylim</em> can be set to a list or tuple of length 4 of the form
[x1,x2,y1,y2] to specify the x- and y-axis limits.</p>
<p>If <em>plot_box == True</em>, a box will be drawn around each subfault.</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.Fault.plot_subfaults_depth">
<span class="sig-name descname"><span class="pre">plot_subfaults_depth</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">axes</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.Fault.plot_subfaults_depth" title="Link to this definition">¶</a></dt>
<dd><p>Plot the depth of each subfault vs. x and vs. y in a second plot.</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.Fault.read">
<span class="sig-name descname"><span class="pre">read</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">column_map</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">coordinate_specification</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">'centroid'</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">rupture_type</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">'static'</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">skiprows</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">0</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">delimiter</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">input_units</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">{}</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">defaults</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.Fault.read" title="Link to this definition">¶</a></dt>
<dd><p>Read in subfault specification at <em>path</em>.</p>
<p>Creates a list of subfaults from the subfault specification file at
<em>path</em>.</p>
<dl class="field-list">
<dt class="field-odd">Inputs<span class="colon">:</span></dt>
<dd class="field-odd"><ul>
<li><p><em>path</em> (str) file to read in, should contain subfaults, one per line</p></li>
<li><p><em>column_map</em> (dict) specifies mapping from parameter to the column
of the input file that contains values for this parameter, e.g.</p>
<blockquote>
<div><p>column_map = {“latitude”:0, “longitude”:1, “depth”:2, “slip”:3,
“rake”:4, “strike”:5, “dip”:6}</p>
</div></blockquote>
</li>
<li><p><em>coordinate_specification</em> (str) specifies the location on each
subfault that corresponds to the (longitude,latitude) and depth
of the subfault. See the documentation for
<em>SubFault.calculate_geometry</em>.</p></li>
<li><p><em>rupture_type</em> (str) either “static” or “kinematic”</p></li>
<li><p><em>skiprows</em> (int) number of header lines to skip before data</p></li>
<li><p><em>delimiter</em> (str) e.g. ‘,’ for csv files</p></li>
<li><dl class="simple">
<dt><em>input_units</em> (dict) indicating units for length, width, slip, depth,</dt><dd><p>and for rigidity mu as specified in file. These
will be converted to “standard units”.</p>
</dd>
</dl>
</li>
<li><dl class="simple">
<dt><em>defaults</em> (dict) default values for all subfaults, for values not</dt><dd><p>included in subfault file on each line.</p>
</dd>
</dl>
</li>
</ul>
</dd>
</dl>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.Fault.set_dynamic_slip">
<span class="sig-name descname"><span class="pre">set_dynamic_slip</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">t</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.Fault.set_dynamic_slip" title="Link to this definition">¶</a></dt>
<dd><p>Set <em>slip_at_dynamic_t</em> attribute of all subfaults to slip at the
requested time <em>t</em>.</p>
<dl class="field-list simple">
<dt class="field-odd">Input<span class="colon">:</span></dt>
<dd class="field-odd"><ul class="simple">
<li><p><em>t</em> (float) -</p></li>
</ul>
</dd>
</dl>
<p>Raises a ValueError exception if this object’s rupture_type attribute
is set to static.</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.Fault.write">
<span class="sig-name descname"><span class="pre">write</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">style</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">column_list</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">output_units</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">{}</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">delimiter</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">'</span>  <span class="pre">'</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.Fault.write" title="Link to this definition">¶</a></dt>
<dd><p>Write subfault format file with one line for each subfault.
Can either specify a <em>style</em> that determines the columns,
or a <em>column_list</em>. Must specify one but not both. See below for
details.</p>
<dl>
<dt>Inputs:</dt><dd><ul>
<li><p><em>path</em> (str) file to write to.</p></li>
<li><p><em>style</em> (str) to write in a style that matches standard styles
adopted by various groups. One of the following:</p>
<blockquote>
<div><ul class="simple">
<li><p>“usgs” (Not implemented)</p></li>
<li><p>“noaa sift” (Not implemented)</p></li>
<li><p>“ucsb” (Not implemented)</p></li>
</ul>
</div></blockquote>
</li>
<li><p><em>column_list</em> (list) specifies what order the parameters should
be written in the output file, e.g.</p>
<blockquote>
<div><p>column_list = [‘longitude’,’latitude’,’length’,’width’,
‘depth’,’strike’,’rake’,’dip’,’slip’]</p>
</div></blockquote>
</li>
<li><p><em>output_units</em> (dict) specifies units to convert to before writing.
Defaults to “standard units”.</p></li>
<li><p><em>delimiter</em> (str) specifies delimiter between columns, e.g.
“,” to create a csv file. Defaults to “ “.</p></li>
</ul>
</dd>
</dl>
</dd></dl>
</dd></dl>
<dl class="py class">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.Fault1d">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">clawpack.geoclaw.dtopotools.</span></span><span class="sig-name descname"><span class="pre">Fault1d</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">subfaults</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">input_units</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">{}</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">coordinate_specification</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.Fault1d" title="Link to this definition">¶</a></dt>
<dd><p>Base Fault1d class</p>
<p>A class describing a 1d fault possibly composed of subfaults.</p>
</dd></dl>
<dl class="py function">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.Mw">
<span class="sig-prename descclassname"><span class="pre">clawpack.geoclaw.dtopotools.</span></span><span class="sig-name descname"><span class="pre">Mw</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">Mo</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">units</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">'N-m'</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.Mw" title="Link to this definition">¶</a></dt>
<dd><p>Calculate moment magnitude based on seismic moment Mo.
Follows USGS recommended definition from</p>
<blockquote>
<div><p><a class="reference external" href="http://earthquake.usgs.gov/aboutus/docs/020204mag_policy.php">http://earthquake.usgs.gov/aboutus/docs/020204mag_policy.php</a></p>
</div></blockquote>
<p>The SubFault and Fault classes each have a function Mo to compute
the seismic moment for a single subfault or collection respectively.</p>
</dd></dl>
<dl class="py class">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SiftFault">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">clawpack.geoclaw.dtopotools.</span></span><span class="sig-name descname"><span class="pre">SiftFault</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">sift_slip</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">longitude_shift</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">0.0</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SiftFault" title="Link to this definition">¶</a></dt>
<dd><p>Define a fault by specifying the slip on a subset of the SIFT unit sources.
The database is read in by load_sift_unit_sources.
See <a class="reference external" href="http://www.pmel.noaa.gov/pubs/PDF/gica2937/gica2937.pdf">http://www.pmel.noaa.gov/pubs/PDF/gica2937/gica2937.pdf</a>
for a discussion of these unit sources, although the database used
is more recent than what is reported in that paper and uses different
notation for the subfault names.
The subfault database used was downloaded from</p>
<blockquote>
<div><p><a class="reference external" href="http://sift.pmel.noaa.gov/ComMIT/compressed/info_sz.dat">http://sift.pmel.noaa.gov/ComMIT/compressed/info_sz.dat</a></p>
</div></blockquote>
<p>Example:</p>
<div class="doctest highlight-default notranslate"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">sift_slip</span> <span class="o">=</span> <span class="p">{</span><span class="s1">'acsza1'</span><span class="p">:</span><span class="mi">2</span><span class="p">,</span> <span class="s1">'acszb1'</span><span class="p">:</span><span class="mi">3</span><span class="p">}</span>
<span class="gp">>>> </span><span class="n">fault</span> <span class="o">=</span> <span class="n">SiftFault</span><span class="p">(</span><span class="n">sift_slip</span><span class="p">)</span>
</pre></div>
</div>
<p>results in a fault with two specified subfaults with slip of 2 and 3 meters.</p>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SiftFault.set_subfaults">
<span class="sig-name descname"><span class="pre">set_subfaults</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">sift_slip</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SiftFault.set_subfaults" title="Link to this definition">¶</a></dt>
<dd><dl class="simple">
<dt><em>sift_slip</em> (dict) is a dictionary with key = name of unit source</dt><dd><p>and value = magnitude of slip to assign (in meters).</p>
</dd>
</dl>
</dd></dl>
</dd></dl>
<dl class="py class">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">clawpack.geoclaw.dtopotools.</span></span><span class="sig-name descname"><span class="pre">SubFault</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault" title="Link to this definition">¶</a></dt>
<dd><p>Basic sub-fault specification.</p>
<p>Locate fault plane in 3D space
Note that the coodinate specification is in reference to the fault</p>
<dl class="field-list simple">
<dt class="field-odd">Coordinates of Fault Plane<span class="colon">:</span></dt>
<dd class="field-odd"><p></p></dd>
</dl>
<p>The attributes <em>centers</em> and <em>corners</em> are described by the figure below.</p>
<dl>
<dt><em>centers[0,1,2]</em> refer to the points labeled 0,1,2 below.</dt><dd><p>In particular the centroid is given by <em>centers[1]</em>.
Each will be a tuple <em>(x, y, depth)</em>.</p>
</dd>
<dt><em>corners[0,1,2,3]</em> refer to the points labeled a,b,c,d resp. below.</dt><dd><p>Each will be a tuple <em>(x, y, depth)</em>.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">Top</span> <span class="n">edge</span> <span class="n">Bottom</span> <span class="n">edge</span>
<span class="n">a</span> <span class="o">-----------</span> <span class="n">b</span> <span class="o">^</span>
<span class="o">|</span> <span class="o">|</span> <span class="o">|</span> <span class="o">^</span>
<span class="o">|</span> <span class="o">|</span> <span class="o">|</span> <span class="o">|</span>
<span class="o">|</span> <span class="o">|</span> <span class="o">|</span> <span class="o">|</span> <span class="n">along</span><span class="o">-</span><span class="n">strike</span> <span class="n">direction</span>
<span class="o">|</span> <span class="o">|</span> <span class="o">|</span> <span class="o">|</span>
<span class="mi">0</span><span class="o">------</span><span class="mi">1</span><span class="o">------</span><span class="mi">2</span> <span class="o">|</span> <span class="n">length</span> <span class="o">|</span>
<span class="o">|</span> <span class="o">|</span> <span class="o">|</span>
<span class="o">|</span> <span class="o">|</span> <span class="o">|</span>
<span class="o">|</span> <span class="o">|</span> <span class="o">|</span>
<span class="o">|</span> <span class="o">|</span> <span class="o">|</span>
<span class="n">d</span> <span class="o">-----------</span> <span class="n">c</span> <span class="n">v</span>
<span class="o"><-------------></span>
<span class="n">width</span>
<span class="o"><--</span> <span class="n">up</span> <span class="n">dip</span> <span class="n">direction</span>
</pre></div>
</div>
</dd>
</dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.Mo">
<span class="sig-name descname"><span class="pre">Mo</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.Mo" title="Link to this definition">¶</a></dt>
<dd><p>Calculate the seismic moment for a single subfault</p>
<p>Returns in units of N-m and assumes mu is in Pascals.</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.calculate_geometry">
<span class="sig-name descname"><span class="pre">calculate_geometry</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.calculate_geometry" title="Link to this definition">¶</a></dt>
<dd><p>Calculate the fault geometry.</p>
<p>Routine calculates the class attributes <em>corners</em> and
<em>centers</em> which are the corners of the fault plane and
points along the centerline respecitvely in 3D space.</p>
<p><strong>Note:</strong> <em>self.coordinate_specification</em> specifies the location on each
subfault that corresponds to the (longitude,latitude) and depth
of the subfault.
Currently must be one of these strings:</p>
<blockquote>
<div><ul class="simple">
<li><p>“bottom center”: (longitude,latitude) and depth at bottom center</p></li>
<li><p>“top center”: (longitude,latitude) and depth at top center</p></li>
<li><p>“centroid”: (longitude,latitude) and depth at centroid of plane</p></li>
<li><dl class="simple">
<dt>“noaa sift”: (longitude,latitude) at bottom center, depth at top,</dt><dd><p>This mixed convention is used by the NOAA SIFT
database and “unit sources”, see:
<a class="reference external" href="http://nctr.pmel.noaa.gov/propagation-database.html">http://nctr.pmel.noaa.gov/propagation-database.html</a></p>
</dd>
</dl>
</li>
<li><dl class="simple">
<dt>“top upstrike corner”: (longitude,latitude) and depth at</dt><dd><p>corner of fault that is both updip and upstrike.</p>
</dd>
</dl>
</li>
</ul>
</div></blockquote>
<p>The Okada model is expressed assuming (longitude,latitude) and depth
are at the bottom center of the fault plane, so values must be
shifted or other specifications.</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.calculate_geometry_triangles">
<span class="sig-name descname"><span class="pre">calculate_geometry_triangles</span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.calculate_geometry_triangles" title="Link to this definition">¶</a></dt>
<dd><p>Calculate geometry for triangular subfaults</p>
<ul class="simple">
<li><p>Uses <em>corners</em> to calculate <em>centers</em>, <em>longitude</em>, <em>latitude</em>,
<em>depth</em>, <em>strike</em>, <em>dip</em>, <em>length</em>, <em>width</em>.</p></li>
<li><p>sets <em>coordinate_specification</em> as “triangular”</p></li>
<li><p>Note that calculate_geometry() computes
long/lat/strike/dip/length/width to calculate centers/corners</p></li>
</ul>
</dd></dl>
<dl class="py property">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.centers">
<em class="property"><span class="pre">property</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">centers</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.centers" title="Link to this definition">¶</a></dt>
<dd><p>Coordinates along the center-line of the fault plane.</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.convert_to_standard_units">
<span class="sig-name descname"><span class="pre">convert_to_standard_units</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">input_units</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">verbose</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.convert_to_standard_units" title="Link to this definition">¶</a></dt>
<dd><p>Convert parameters from the units used for input into the standard
units used in this module.</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.coordinate_specification">
<span class="sig-name descname"><span class="pre">coordinate_specification</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.coordinate_specification" title="Link to this definition">¶</a></dt>
<dd><p>Specifies where the latitude, longitude and depth are measured from.</p>
</dd></dl>
<dl class="py property">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.corners">
<em class="property"><span class="pre">property</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">corners</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.corners" title="Link to this definition">¶</a></dt>
<dd><p>Coordinates of the corners of the fault plane.</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.depth">
<span class="sig-name descname"><span class="pre">depth</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.depth" title="Link to this definition">¶</a></dt>
<dd><p>Depth of subfault based on <em>coordinate_specification</em> in meters.</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.dip">
<span class="sig-name descname"><span class="pre">dip</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.dip" title="Link to this definition">¶</a></dt>
<dd><p>Subfault’s angle of dip</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.dynamic_slip">
<span class="sig-name descname"><span class="pre">dynamic_slip</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">t</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.dynamic_slip" title="Link to this definition">¶</a></dt>
<dd><p>For a dynamic fault, compute the slip at time t.
Assumes the following attributes are set:</p>
<blockquote>
<div><ul class="simple">
<li><p><em>rupture_time</em></p></li>
<li><p><em>rise_time</em></p></li>
<li><p><em>rise_time_starting</em>: optional, defaults to <em>rise_time/2</em></p></li>
<li><p><em>rise_shape</em>: optional, defaults to <em>quadratic</em></p></li>
</ul>
</div></blockquote>
</dd></dl>
<dl class="py property">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.gauss_pts">
<em class="property"><span class="pre">property</span><span class="w"> </span></em><span class="sig-name descname"><span class="pre">gauss_pts</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.gauss_pts" title="Link to this definition">¶</a></dt>
<dd><p>Coordinates along the center-line of the fault plane.</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.latitude">
<span class="sig-name descname"><span class="pre">latitude</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.latitude" title="Link to this definition">¶</a></dt>
<dd><p>Latitutde of the subfault based on <em>coordinate_specification</em>.</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.length">
<span class="sig-name descname"><span class="pre">length</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.length" title="Link to this definition">¶</a></dt>
<dd><p>Length of subfault in meters.</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.longitude">
<span class="sig-name descname"><span class="pre">longitude</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.longitude" title="Link to this definition">¶</a></dt>
<dd><p>Longitude of the subfault based on <em>coordinate_specification</em>.</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.mu">
<span class="sig-name descname"><span class="pre">mu</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.mu" title="Link to this definition">¶</a></dt>
<dd><p>Rigidity (== shear modulus) in Pascals.</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.okada">
<span class="sig-name descname"><span class="pre">okada</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">x</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">y</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">set_dtopo</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">True</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.okada" title="Link to this definition">¶</a></dt>
<dd><p>Apply Okada to this subfault and return a DTopography object.</p>
<dl class="field-list simple">
<dt class="field-odd">Input<span class="colon">:</span></dt>
<dd class="field-odd"><ul class="simple">
<li><p>x,y are 1d arrays</p></li>
<li><p>set_dtopo (bool): If True, also set self.dtopo = dtopo, the
DTopography object created.
Defaults to True for backward compatibility, but create_dtopography
has been refactored so it is no longer necessary to save dtopo
for each subfault separately, which may use too much memory if
there are many subfaults with fine resolution dtopo files.</p></li>
</ul>
</dd>
<dt class="field-even">Output<span class="colon">:</span></dt>
<dd class="field-even"><ul class="simple">
<li><dl class="simple">
<dt>DTopography object with dZ array of shape (1,len(x),len(y))</dt><dd><p>with single static displacement and times = [0.].</p>
</dd>
</dl>
</li>
</ul>
</dd>
</dl>
<p>Currently only calculates the vertical displacement.</p>
<p>Okada model is a mapping from several fault parameters
to a surface deformation.
See Okada 1985 <a class="reference internal" href="biblio.html#okada85" id="id1"><span>[Okada85]</span></a>, or Okada 1992, Bull. Seism. Soc. Am.</p>
<p>okadamap function riginally written in Python by Dave George for
Clawpack 4.6 okada.py routine, with some routines adapted
from fortran routines written by Xiaoming Wang.</p>
<p>Rewritten and made more flexible by Randy LeVeque</p>
<p><strong>Note:</strong> <em>self.coordinate_specification</em> (str) specifies the location on
each subfault that corresponds to the (longitude,latitude) and depth
subfault.</p>
<p>See the documentation for <em>SubFault.calculate_geometry</em> for dicussion of the
possible values <em>self.coordinate_specification</em> can take.</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.rake">
<span class="sig-name descname"><span class="pre">rake</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.rake" title="Link to this definition">¶</a></dt>
<dd><p>Rake of subfault movement in degrees.</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.rise_shape">
<span class="sig-name descname"><span class="pre">rise_shape</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.rise_shape" title="Link to this definition">¶</a></dt>
<dd><p>Shape of rise, ‘linear’ or ‘quadratic’ (piecewise)</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.rise_time">
<span class="sig-name descname"><span class="pre">rise_time</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.rise_time" title="Link to this definition">¶</a></dt>
<dd><p>Total rise time of subfault (sec)</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.rise_time_starting">
<span class="sig-name descname"><span class="pre">rise_time_starting</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.rise_time_starting" title="Link to this definition">¶</a></dt>
<dd><p>Optional time of first part of rise, before break in pw smooth rise</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.rupture_time">
<span class="sig-name descname"><span class="pre">rupture_time</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.rupture_time" title="Link to this definition">¶</a></dt>
<dd><p>Time subfault starts to rupture (sec)</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.rupture_type">
<span class="sig-name descname"><span class="pre">rupture_type</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.rupture_type" title="Link to this definition">¶</a></dt>
<dd><p>Either ‘static’ or ‘kinematic’</p>
</dd></dl>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.set_corners">
<span class="sig-name descname"><span class="pre">set_corners</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">corners</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">projection_zone</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.set_corners" title="Link to this definition">¶</a></dt>
<dd><p>Set three corners for a triangular fault.
:Inputs:</p>
<ul class="simple">
<li><p><em>corners</em> should be iterable of length 3.</p></li>
<li><p><em>rake</em> should be between -180. and 180.</p></li>
</ul>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.slip">
<span class="sig-name descname"><span class="pre">slip</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.slip" title="Link to this definition">¶</a></dt>
<dd><p>Slip on subfault in strike direction in meters.</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.strike">
<span class="sig-name descname"><span class="pre">strike</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.strike" title="Link to this definition">¶</a></dt>
<dd><p>Strike direction of subfault in degrees.</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault.width">
<span class="sig-name descname"><span class="pre">width</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault.width" title="Link to this definition">¶</a></dt>
<dd><p>Width of subfault in meters.</p>
</dd></dl>
</dd></dl>
<dl class="py class">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault1d">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">clawpack.geoclaw.dtopotools.</span></span><span class="sig-name descname"><span class="pre">SubFault1d</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">strike</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">0</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">length</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">1000000.0</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault1d" title="Link to this definition">¶</a></dt>
<dd><dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault1d.coordinate_specification">
<span class="sig-name descname"><span class="pre">coordinate_specification</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault1d.coordinate_specification" title="Link to this definition">¶</a></dt>
<dd><p>location of x0: ‘top center’, ‘centroid’, or ‘bottom center’</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault1d.latitude">
<span class="sig-name descname"><span class="pre">latitude</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault1d.latitude" title="Link to this definition">¶</a></dt>
<dd><p>latitude where placed on sphere to use 2d routines</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault1d.length">
<span class="sig-name descname"><span class="pre">length</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault1d.length" title="Link to this definition">¶</a></dt>
<dd><p>length (m) in strike direction orthogonal to x</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault1d.longitude">
<span class="sig-name descname"><span class="pre">longitude</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault1d.longitude" title="Link to this definition">¶</a></dt>
<dd><p>longitude at location specified by coordinate_specification</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault1d.rake">
<span class="sig-name descname"><span class="pre">rake</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault1d.rake" title="Link to this definition">¶</a></dt>
<dd><p>rake=90 ==> top at right if strike=0, at left if strike=180</p>
</dd></dl>
<dl class="py attribute">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubFault1d.strike">
<span class="sig-name descname"><span class="pre">strike</span></span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubFault1d.strike" title="Link to this definition">¶</a></dt>
<dd><p>rake=90, so top at right if strike=0, at left if strike=180</p>
</dd></dl>
</dd></dl>
<dl class="py class">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubdividedPlaneFault">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">clawpack.geoclaw.dtopotools.</span></span><span class="sig-name descname"><span class="pre">SubdividedPlaneFault</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">base_subfault</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">nstrike</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">1</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">ndip</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">1</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">slip_function</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">Mo</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubdividedPlaneFault" title="Link to this definition">¶</a></dt>
<dd><p>Define a fault by starting with a single fault plane (specified as
<em>base_subfault</em> of class <em>SubFault</em>) and subdividing the fault plane
into a rectangular array of <em>nstrike</em> by <em>ndip</em> equally sized subfaults.</p>
<p>By default,the slip on each subfault will be initialized to
<em>base_subfault.slip</em> so that the slip is uniform over the original plane
and the seismic moment is independent of the number of subdivisions.</p>
<p>Alternatively, the slip distribution can be specified by providing a
function <em>slip_distribution</em>, which should be a function of <em>(xi,eta)</em>
with each variable ranging from 0 to 1. <em>xi</em> varies from 0 at the top
of the fault to 1 at the bottom in the down-dip direction.
<em>eta</em> varies from one edge of the fault to the other moving in the
strike direction. This function will be evaluated at the centroid of
each subfault to set the slip.</p>
<p>Can also specify a desired seismic moment Mo in which case the slips will
be rescaled at the end so the total seismic moment is Mo. In this case
the <em>slip_distribution</em> function only indicates the relative slip
between subfaults.</p>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.SubdividedPlaneFault.subdivide">
<span class="sig-name descname"><span class="pre">subdivide</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">nstrike</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">1</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">ndip</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">1</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">slip_function</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">Mo</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.SubdividedPlaneFault.subdivide" title="Link to this definition">¶</a></dt>
<dd><p>Subdivide the fault plane into nstrike * ndip subfaults.</p>
</dd></dl>
</dd></dl>
<dl class="py class">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.TensorProductFault">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">clawpack.geoclaw.dtopotools.</span></span><span class="sig-name descname"><span class="pre">TensorProductFault</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">fault_plane</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">slip_along_strike</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">slip_down_dip</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">nstrike</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">1</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">ndip</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">1</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">Mo</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.TensorProductFault" title="Link to this definition">¶</a></dt>
<dd><p>Define a fault by starting with a single fault plane (specified as
<em>fault_plane</em> of class <em>SubFault</em>) and subdividing the fault plane
into a rectangular array of <em>nstrike</em> by <em>ndip</em> equally sized subfaults.</p>
<p>Then define the slip on each subfault via
two one-dimensional functions <em>slip_along_strike</em> and
<em>slip_down_dip</em> that specify the slip as a function of fractional
distance in the along-strike and down-dip direction respectively
(i.e. the argument of each goes from 0 to 1).</p>
<p>Setting either to None defaults to constant function 1.</p>
<p>The slip is set by evaluating the tensor product at the centroid of
each subfault.</p>
<p>Can specify a desired seismic moment Mo in which case the slips will
be rescaled at the end.</p>
</dd></dl>
<dl class="py class">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.UCSBFault">
<em class="property"><span class="pre">class</span><span class="w"> </span></em><span class="sig-prename descclassname"><span class="pre">clawpack.geoclaw.dtopotools.</span></span><span class="sig-name descname"><span class="pre">UCSBFault</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="o"><span class="pre">**</span></span><span class="n"><span class="pre">kwargs</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.UCSBFault" title="Link to this definition">¶</a></dt>
<dd><p>Fault subclass for reading in subfault format models from UCSB</p>
<p>Read in subfault format models produced by Chen Ji’s group at UCSB,
downloadable from:</p>
<blockquote>
<div><p><a class="reference external" href="http://www.geol.ucsb.edu/faculty/ji/big_earthquakes/home.html">http://www.geol.ucsb.edu/faculty/ji/big_earthquakes/home.html</a></p>
</div></blockquote>
<dl class="py method">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.UCSBFault.read">
<span class="sig-name descname"><span class="pre">read</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">path</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">rupture_type</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">'static'</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.UCSBFault.read" title="Link to this definition">¶</a></dt>
<dd><p>Read in subfault specification at <em>path</em>.</p>
<p>Creates a list of subfaults from the subfault specification file at
<em>path</em>.</p>
<p>Subfault format contains info for dynamic rupture, so can specify
rupture_type = ‘static’ or ‘kinematic’ (or ‘dynamic’ for backward
compatibility).</p>
</dd></dl>
</dd></dl>
<dl class="py function">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.plot_dZ_colors">
<span class="sig-prename descclassname"><span class="pre">clawpack.geoclaw.dtopotools.</span></span><span class="sig-name descname"><span class="pre">plot_dZ_colors</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">x</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">y</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">dZ</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">axes</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">cmax_dZ</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">dZ_interval</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">add_colorbar</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">True</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">verbose</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">colorbar_labelsize</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">10</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">colorbar_ticksize</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">10</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">fig_kwargs</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">{}</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.plot_dZ_colors" title="Link to this definition">¶</a></dt>
<dd><p>Plot sea floor deformation dZ as colormap with contours</p>
</dd></dl>
<dl class="py function">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.plot_dZ_contours">
<span class="sig-prename descclassname"><span class="pre">clawpack.geoclaw.dtopotools.</span></span><span class="sig-name descname"><span class="pre">plot_dZ_contours</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">x</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">y</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">dZ</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">axes</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">dZ_interval</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">0.5</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">verbose</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">False</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">fig_kwargs</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">{}</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.plot_dZ_contours" title="Link to this definition">¶</a></dt>
<dd><p>For plotting seafloor deformation dZ</p>
</dd></dl>
<dl class="py function">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.rise_fraction">
<span class="sig-prename descclassname"><span class="pre">clawpack.geoclaw.dtopotools.</span></span><span class="sig-name descname"><span class="pre">rise_fraction</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">t</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">rupture_time</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">rise_time</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">rise_time_starting</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">None</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">rise_shape</span></span><span class="o"><span class="pre">=</span></span><span class="default_value"><span class="pre">'quadratic'</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.rise_fraction" title="Link to this definition">¶</a></dt>
<dd><p>A continuous piecewise quadratic or linear function of t that is</p>
<blockquote>
<div><ul class="simple">
<li><p>0 for t <= rupture_time,</p></li>
<li><p>1 for t >= rupture_time + rise_time</p></li>
</ul>
</div></blockquote>
<dl class="field-list simple">
<dt class="field-odd">Inputs<span class="colon">:</span></dt>
<dd class="field-odd"><p></p></dd>
</dl>
<ul class="simple">
<li><p><em>t</em> (scalar, list, or np.array): times at which to evaluate the
rise function.</p></li>
<li><p><em>rupture_time</em> (float): time (seconds) when rupture starts.</p></li>
<li><p><em>rise_time</em> (float): duration of rupture (seconds).</p></li>
<li><p><em>rise_time_starting</em> (float or None): If None, it is internally set to
<cite>rise_time/2</cite>.</p></li>
<li><p><em>rise_shape</em> (str):
If <cite>rise_shape == “quadratic”</cite>, the rise time function is piecewise quadratic,
continuously differentiable, with maximum slope at
<cite>t = rupture_time + rise_time_starting</cite>
and zero slope at <cite>t = rupture_time</cite> and <cite>t = rupture_time + rise_time</cite>.
If <cite>rise_shape == “linear”</cite>, the rise time function is piecewise linear,
with value 0.5 at
<cite>t = rupture_time + rise_time_starting</cite>.</p></li>
</ul>
<dl class="field-list simple">
<dt class="field-odd">Outputs<span class="colon">:</span></dt>
<dd class="field-odd"><p></p></dd>
</dl>
<p><em>rf</em> (float or np.array): The rise time function evaluated at <cite>t</cite>.
If the input is a list or tuple of times, returns a numpy array.</p>
</dd></dl>
<dl class="py function">
<dt class="sig sig-object py" id="clawpack.geoclaw.dtopotools.strike_direction">
<span class="sig-prename descclassname"><span class="pre">clawpack.geoclaw.dtopotools.</span></span><span class="sig-name descname"><span class="pre">strike_direction</span></span><span class="sig-paren">(</span><em class="sig-param"><span class="n"><span class="pre">x1</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">y1</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">x2</span></span></em>, <em class="sig-param"><span class="n"><span class="pre">y2</span></span></em><span class="sig-paren">)</span><a class="headerlink" href="#clawpack.geoclaw.dtopotools.strike_direction" title="Link to this definition">¶</a></dt>
<dd><p>Calculate strike direction between two points.
Actually calculates “initial bearing” from (x1,y1) in direction
towards (x2,y2), following
<a class="reference external" href="http://www.movable-type.co.uk/scripts/latlong.html">http://www.movable-type.co.uk/scripts/latlong.html</a></p>
</dd></dl>
</section>
</section>
<div class="clearer"></div>