[installation] Change to nightly
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<head>
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<meta charset="utf-8" /><meta name="viewport" content="width=device-width, initial-scale=1" />
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<title>StdLoc — SeisComP Release documentation</title>
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<title>StdLoc — SeisComP Development documentation</title>
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<link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
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<link rel="stylesheet" href="../_static/seiscomp.css" type="text/css" />
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<link rel="stylesheet" type="text/css" href="../_static/pygments.css?v=72bcf2f2" />
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<link rel="stylesheet" type="text/css" href="../_static/graphviz.css?v=eafc0fe6" />
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<script type="text/javascript" src="../_static/seiscomp.js"></script>
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<script type="text/javascript" id="documentation_options" data-url_root="../" src="../_static/documentation_options.js"></script>
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<script data-url_root="../" id="documentation_options" src="../_static/documentation_options.js?v=823bb831"></script>
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<script src="../_static/sphinx_highlight.js?v=4825356b"></script>
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<link rel="index" title="Index" href="../genindex.html" />
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@ -25,8 +25,8 @@
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<div class="container">
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<div class="brand">
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<img class="logo" src="../_static/brands/seiscomp/text/white.svg"/>
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<!-- span class="title">SeisComP Release</span -->
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<span class="version">6.9.0</span>
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<!-- span class="title">SeisComP Development</span -->
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<span class="version">7.0.0</span>
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</div>
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</div>
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</div>
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@ -83,7 +83,11 @@ are generic enough to work at larger scales as well.</p>
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</section>
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<section id="plugin">
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<h2>Plugin<a class="headerlink" href="#plugin" title="Permalink to this heading">¶</a></h2>
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<p>To enable StdLoc the plugin <code class="docutils literal notranslate"><span class="pre">stdloc</span></code> must be loaded.</p>
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<p>To enable StdLoc the plugin <code class="docutils literal notranslate"><span class="pre">stdloc</span></code> must be loaded. Add this value to the
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global configuration parameter <a class="reference internal" href="global.html#confval-plugins"><code class="xref std std-confval docutils literal notranslate"><span class="pre">plugins</span></code></a> as or similar to</p>
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<div class="highlight-sh notranslate"><div class="highlight"><pre><span></span><span class="nv">plugins</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="si">${</span><span class="nv">plugins</span><span class="si">}</span>,stdloc
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</pre></div>
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</div>
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</section>
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<section id="how-does-it-work">
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<h2>How does it work?<a class="headerlink" href="#how-does-it-work" title="Permalink to this heading">¶</a></h2>
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@ -97,11 +101,9 @@ is used in combination with a pick associator: it provides the initial location
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estimate and StdLoc will improve it. When used in <a class="reference internal" href="scolv.html#scolv"><span class="std std-ref">scolv</span></a> or <a class="reference internal" href="screloc.html#screloc"><span class="std std-ref">screloc</span></a>,
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the location of the origin to be relocated is used as starting estimate.
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The configuration doesn’t require any mandatory parameters:</p>
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<blockquote>
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<div><div class="highlight-params notranslate"><div class="highlight"><pre><span></span>method = LeastSquares
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<div class="highlight-params notranslate"><div class="highlight"><pre><span></span>method = LeastSquares
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</pre></div>
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</div>
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</div></blockquote>
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</li>
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<li><p>GridSearch: finds the source parameters by evaluating the hypocenter probability
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of each point in a grid and returning the maximum likelihood hypocenter.
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@ -112,14 +114,12 @@ difficult to locate via other methods or to verify the uncertainty of a solution
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The following example configuration computes a grid search around the average
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location of the picked stations. The grid points are spaced apart 0.5km
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horizontally and 2km vertically.</p>
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<blockquote>
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<div><div class="highlight-params notranslate"><div class="highlight"><pre><span></span>method = GridSearch
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<div class="highlight-params notranslate"><div class="highlight"><pre><span></span>method = GridSearch
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GridSearch.center = auto,auto,15
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GridSearch.size = 40,40,30
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GridSearch.numPoints = 81,81,16
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</pre></div>
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</div>
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</div></blockquote>
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</li>
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<li><p>GridSearch+LeastSquares: this method can be used in very complex networks where
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a bad initial location estimates can get LeastSquares stuck in a local minimum.
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@ -129,14 +129,12 @@ likelihood solution. This method is intended to be used in <a class="reference i
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<a class="reference internal" href="scolv.html#scolv"><span class="std std-ref">scolv</span></a> to relocate existing events.
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The following example configuration returns the best among the 75 (5x5x3)
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LeastSquares solutions, computed for every point in the grid.</p>
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<blockquote>
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<div><div class="highlight-params notranslate"><div class="highlight"><pre><span></span>method = GridSearch+LeastSquares
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<div class="highlight-params notranslate"><div class="highlight"><pre><span></span>method = GridSearch+LeastSquares
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GridSearch.center = auto,auto,15
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GridSearch.size = 100,100,30
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GridSearch.numPoints = 5,5,3
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</pre></div>
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</div>
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</div></blockquote>
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</li>
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<li><p>OctTree: this method produces similar results to GridSearch but it is extremely
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faster and it follows the NonLinLoc approach. The OctTree search starts by
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@ -154,8 +152,7 @@ This method is intended to be used in <a class="reference internal" href="screlo
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relocate existing events.
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The following example is a plausible configuration for the entire Swiss
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network:</p>
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<blockquote>
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<div><div class="highlight-params notranslate"><div class="highlight"><pre><span></span>method = OctTree
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<div class="highlight-params notranslate"><div class="highlight"><pre><span></span>method = OctTree
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GridSearch.center = 47.0,8.5,50
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GridSearch.size = 700,700,100
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GridSearch.numPoints = 21,21,11
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@ -163,7 +160,6 @@ OctTree.maxIterations = 100000
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OctTree.minCellSize = 0.001
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</pre></div>
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</div>
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</div></blockquote>
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<p>However in this example we are at the size limit for a flat earth study
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geometry and for bigger regions <cite>GridSearch.center</cite> should be set to
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<cite>auto</cite> and <cite>GridSearch.size</cite> to a smaller size.</p>
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@ -175,8 +171,7 @@ This method is intended to be used in <a class="reference internal" href="screlo
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relocate existing events.
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The following example is a plausible configuration for the entire Swiss
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network:</p>
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<blockquote>
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<div><div class="highlight-params notranslate"><div class="highlight"><pre><span></span>method = OctTree+LeastSquares
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<div class="highlight-params notranslate"><div class="highlight"><pre><span></span>method = OctTree+LeastSquares
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GridSearch.center = 47.0,8.5,50
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GridSearch.size = 700,700,100
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GridSearch.numPoints = 21,21,11
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@ -184,7 +179,6 @@ OctTree.maxIterations = 10000
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OctTree.minCellSize = 1.0
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</pre></div>
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</div>
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</div></blockquote>
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<p>However in this example we are at the size limit for a flat earth study
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geometry and for bigger regions <cite>GridSearch.center</cite> should be set to
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<cite>auto</cite> and <cite>GridSearch.size</cite> to a smaller size.</p>
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@ -200,9 +194,9 @@ search algorithm is based on NonLibLoc by Antony Lomax.</p>
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simplifications that are common for regional seismicity have to be removed.
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In particular the locator should take into consideration:</p>
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<ul class="simple">
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<li><p>station elevation and even negative elevation (e.g. borehole sensors)</p></li>
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<li><p>earthquake location can be above a seismic sensor (e.g. borehole sensors)</p></li>
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<li><p>possible negative earthquake depth (above surface)</p></li>
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<li><p>Station elevation and even negative elevation (e.g. borehole sensors)</p></li>
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<li><p>Earthquake location can be above a seismic sensor (e.g. borehole sensors)</p></li>
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<li><p>Possible negative earthquake depth (above surface).</p></li>
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</ul>
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<p>More importantly the travel time tables used by the locator must be able to take
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into consideration all the above too.</p>
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@ -248,6 +242,7 @@ StdLoc.profile.c.value1<span class="w"> </span><span class="o">=</span><span cla
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<span class="sig-name descname"><span class="pre">StdLoc.profile.$name.method</span></span><a class="headerlink" href="#confval-StdLoc.profile.-name.method" title="Permalink to this definition">¶</a></dt>
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<dd><p>Default: <code class="docutils literal notranslate"><span class="pre">LeastSquares</span></code></p>
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<p>Type: <em>string</em></p>
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<p>Values: <code class="docutils literal notranslate"><span class="pre">LeastSquares,GridSearch,OctTree,GridSearch+LeastSquares,OctTree+LeastSquares</span></code></p>
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<p>The location method to use: LeastSquares, GridSearch,
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OctTree, GridSearch+LeastSquares or OctTree+LeastSquares.</p>
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</dd></dl>
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@ -319,6 +314,7 @@ applies.</p>
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<span class="sig-name descname"><span class="pre">StdLoc.profile.$name.confLevel</span></span><a class="headerlink" href="#confval-StdLoc.profile.-name.confLevel" title="Permalink to this definition">¶</a></dt>
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<dd><p>Default: <code class="docutils literal notranslate"><span class="pre">0.9</span></code></p>
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<p>Type: <em>double</em></p>
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<p>Range: <code class="docutils literal notranslate"><span class="pre">0.5:1.0</span></code></p>
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<p>Confidence level, between 0.5 and 1.0, used in
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computing the hypocenter confidence ellipsoid.</p>
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</dd></dl>
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@ -377,6 +373,7 @@ and the point will be in the grid center.</p>
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<span class="sig-name descname"><span class="pre">StdLoc.profile.$name.GridSearch.misfitType</span></span><a class="headerlink" href="#confval-StdLoc.profile.-name.GridSearch.misfitType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Default: <code class="docutils literal notranslate"><span class="pre">L1</span></code></p>
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<p>Type: <em>string</em></p>
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<p>Values: <code class="docutils literal notranslate"><span class="pre">L1,L2</span></code></p>
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<p>The type of misfit to use, from which
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the likelihood function is derived: L1 or L2 norm.
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L1 is less sensitive to outliers and so more
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@ -472,6 +469,7 @@ system of equations.</p>
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<span class="sig-name descname"><span class="pre">StdLoc.profile.$name.LeastSquares.solverType</span></span><a class="headerlink" href="#confval-StdLoc.profile.-name.LeastSquares.solverType" title="Permalink to this definition">¶</a></dt>
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<dd><p>Default: <code class="docutils literal notranslate"><span class="pre">LSMR</span></code></p>
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<p>Type: <em>string</em></p>
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<p>Values: <code class="docutils literal notranslate"><span class="pre">LSMR,LSQR</span></code></p>
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<p>Algorithm to use: either LSMR or LSQR.</p>
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</dd></dl>
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@ -539,7 +537,7 @@ system of equations.</p>
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</a>
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<div class="stretched align-center fitted content">
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<div>
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Version <b>6.9.0</b> Release
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Version <b>7.0.0</b> Development
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</div>
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<div class="copyright">
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Copyright © gempa GmbH, GFZ Potsdam.
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