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<section id="harpmerge">
<h1>harpmerge</h1>
<p>Combine multiple products from files or directories by appending them across
the time dimension and storing the result into a single output file.</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">Usage</span><span class="p">:</span>
<span class="n">harpmerge</span> <span class="p">[</span><span class="n">options</span><span class="p">]</span> <span class="o"><</span><span class="n">file</span><span class="o">|</span><span class="nb">dir</span><span class="o">></span> <span class="p">[</span><span class="o"><</span><span class="n">file</span><span class="o">|</span><span class="nb">dir</span><span class="o">></span> <span class="o">...</span><span class="p">]</span> <span class="o"><</span><span class="n">output</span> <span class="n">product</span> <span class="n">file</span><span class="o">></span>
<span class="n">Concatenate</span> <span class="nb">all</span> <span class="n">products</span> <span class="k">as</span> <span class="n">specified</span> <span class="n">by</span> <span class="n">the</span> <span class="n">file</span> <span class="ow">and</span> <span class="n">directory</span> <span class="n">paths</span>
<span class="n">into</span> <span class="n">a</span> <span class="n">single</span> <span class="n">product</span><span class="o">.</span>
<span class="n">If</span> <span class="n">a</span> <span class="n">directory</span> <span class="ow">is</span> <span class="n">specified</span> <span class="n">then</span> <span class="nb">all</span> <span class="n">files</span> <span class="p">(</span><span class="n">recursively</span><span class="p">)</span> <span class="kn">from</span> <span class="nn">that</span>
<span class="n">directory</span> <span class="n">are</span> <span class="n">included</span><span class="o">.</span>
<span class="n">If</span> <span class="n">a</span> <span class="n">file</span> <span class="ow">is</span> <span class="n">a</span> <span class="o">.</span><span class="n">pth</span> <span class="n">file</span> <span class="n">then</span> <span class="n">the</span> <span class="n">file</span> <span class="n">paths</span> <span class="kn">from</span> <span class="nn">that</span> <span class="n">text</span> <span class="n">file</span>
<span class="p">(</span><span class="n">one</span> <span class="n">per</span> <span class="n">line</span><span class="p">)</span> <span class="n">are</span> <span class="n">included</span><span class="o">.</span> <span class="n">These</span> <span class="n">file</span> <span class="n">paths</span> <span class="n">can</span> <span class="n">be</span> <span class="n">absolute</span> <span class="ow">or</span>
<span class="n">relative</span> <span class="ow">and</span> <span class="n">can</span> <span class="n">point</span> <span class="n">to</span> <span class="n">files</span><span class="p">,</span> <span class="n">directories</span><span class="p">,</span> <span class="ow">or</span> <span class="n">other</span> <span class="o">.</span><span class="n">pth</span> <span class="n">files</span><span class="o">.</span>
<span class="n">Options</span><span class="p">:</span>
<span class="o">-</span><span class="n">a</span><span class="p">,</span> <span class="o">--</span><span class="n">operations</span> <span class="o"><</span><span class="n">operation</span> <span class="nb">list</span><span class="o">></span>
<span class="n">List</span> <span class="n">of</span> <span class="n">operations</span> <span class="n">to</span> <span class="n">apply</span> <span class="n">to</span> <span class="n">each</span> <span class="n">product</span><span class="o">.</span>
<span class="n">An</span> <span class="n">operation</span> <span class="nb">list</span> <span class="n">needs</span> <span class="n">to</span> <span class="n">be</span> <span class="n">provided</span> <span class="k">as</span> <span class="n">a</span> <span class="n">single</span> <span class="n">expression</span><span class="o">.</span>
<span class="n">See</span> <span class="n">the</span> <span class="s1">'operations'</span> <span class="n">section</span> <span class="n">of</span> <span class="n">the</span> <span class="n">HARP</span> <span class="n">documentation</span> <span class="k">for</span>
<span class="n">more</span> <span class="n">details</span><span class="o">.</span>
<span class="n">Operations</span> <span class="n">will</span> <span class="n">be</span> <span class="n">performed</span> <span class="n">before</span> <span class="n">a</span> <span class="n">product</span> <span class="ow">is</span> <span class="n">appended</span><span class="o">.</span>
<span class="o">-</span><span class="n">ar</span><span class="p">,</span> <span class="o">--</span><span class="n">reduce</span><span class="o">-</span><span class="n">operations</span> <span class="o"><</span><span class="n">operation</span> <span class="nb">list</span><span class="o">></span>
<span class="n">List</span> <span class="n">of</span> <span class="n">operations</span> <span class="n">to</span> <span class="n">apply</span> <span class="n">after</span> <span class="n">each</span> <span class="n">append</span><span class="o">.</span>
<span class="n">This</span> <span class="n">advanced</span> <span class="n">option</span> <span class="n">allows</span> <span class="k">for</span> <span class="n">memory</span> <span class="n">efficient</span> <span class="n">application</span>
<span class="n">of</span> <span class="n">time</span> <span class="n">reduction</span> <span class="n">operations</span> <span class="p">(</span><span class="n">such</span> <span class="k">as</span> <span class="nb">bin</span><span class="p">())</span> <span class="n">that</span> <span class="n">would</span>
<span class="n">normally</span> <span class="n">be</span> <span class="n">provided</span> <span class="k">as</span> <span class="n">part</span> <span class="n">of</span> <span class="n">the</span> <span class="n">post</span> <span class="n">operations</span><span class="o">.</span>
<span class="o">-</span><span class="n">ap</span><span class="p">,</span> <span class="o">--</span><span class="n">post</span><span class="o">-</span><span class="n">operations</span> <span class="o"><</span><span class="n">operation</span> <span class="nb">list</span><span class="o">></span>
<span class="n">List</span> <span class="n">of</span> <span class="n">operations</span> <span class="n">to</span> <span class="n">apply</span> <span class="n">to</span> <span class="n">the</span> <span class="n">merged</span> <span class="n">product</span><span class="o">.</span>
<span class="n">An</span> <span class="n">operation</span> <span class="nb">list</span> <span class="n">needs</span> <span class="n">to</span> <span class="n">be</span> <span class="n">provided</span> <span class="k">as</span> <span class="n">a</span> <span class="n">single</span> <span class="n">expression</span><span class="o">.</span>
<span class="n">See</span> <span class="n">the</span> <span class="s1">'operations'</span> <span class="n">section</span> <span class="n">of</span> <span class="n">the</span> <span class="n">HARP</span> <span class="n">documentation</span> <span class="k">for</span>
<span class="n">more</span> <span class="n">details</span><span class="o">.</span>
<span class="o">-</span><span class="n">o</span><span class="p">,</span> <span class="o">--</span><span class="n">options</span> <span class="o"><</span><span class="n">option</span> <span class="nb">list</span><span class="o">></span>
<span class="n">List</span> <span class="n">of</span> <span class="n">options</span> <span class="n">to</span> <span class="k">pass</span> <span class="n">to</span> <span class="n">the</span> <span class="n">ingestion</span> <span class="n">module</span><span class="o">.</span>
<span class="n">Only</span> <span class="n">applicable</span> <span class="k">if</span> <span class="n">an</span> <span class="nb">input</span> <span class="n">product</span> <span class="ow">is</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">HARP</span> <span class="nb">format</span><span class="o">.</span>
<span class="n">Options</span> <span class="n">are</span> <span class="n">separated</span> <span class="n">by</span> <span class="n">semi</span><span class="o">-</span><span class="n">colons</span><span class="o">.</span> <span class="n">Each</span> <span class="n">option</span> <span class="n">consists</span>
<span class="n">of</span> <span class="n">an</span> <span class="o"><</span><span class="n">option</span> <span class="n">name</span><span class="o">>=<</span><span class="n">value</span><span class="o">></span> <span class="n">pair</span><span class="o">.</span> <span class="n">An</span> <span class="n">option</span> <span class="nb">list</span> <span class="n">needs</span> <span class="n">to</span> <span class="n">be</span>
<span class="n">provided</span> <span class="k">as</span> <span class="n">a</span> <span class="n">single</span> <span class="n">expression</span><span class="o">.</span>
<span class="o">-</span><span class="n">l</span><span class="p">,</span> <span class="o">--</span><span class="nb">list</span>
<span class="n">Print</span> <span class="n">to</span> <span class="n">stdout</span> <span class="n">each</span> <span class="n">filename</span> <span class="n">that</span> <span class="ow">is</span> <span class="n">currently</span> <span class="n">being</span> <span class="n">merged</span><span class="o">.</span>
<span class="o">-</span><span class="n">f</span><span class="p">,</span> <span class="o">--</span><span class="nb">format</span> <span class="o"><</span><span class="nb">format</span><span class="o">></span>
<span class="n">Output</span> <span class="nb">format</span><span class="p">:</span>
<span class="n">netcdf</span> <span class="p">(</span><span class="n">default</span><span class="p">)</span>
<span class="n">hdf4</span>
<span class="n">hdf5</span>
<span class="o">--</span><span class="n">hdf5</span><span class="o">-</span><span class="n">compression</span> <span class="o"><</span><span class="n">level</span><span class="o">></span>
<span class="n">Set</span> <span class="n">data</span> <span class="n">compression</span> <span class="n">level</span> <span class="k">for</span> <span class="n">storing</span> <span class="ow">in</span> <span class="n">HDF5</span> <span class="nb">format</span><span class="o">.</span>
<span class="mi">0</span><span class="o">=</span><span class="n">disabled</span><span class="p">,</span> <span class="mi">1</span><span class="o">=</span><span class="n">low</span><span class="p">,</span> <span class="o">...</span><span class="p">,</span> <span class="mi">9</span><span class="o">=</span><span class="n">high</span><span class="o">.</span>
<span class="o">--</span><span class="n">no</span><span class="o">-</span><span class="n">history</span>
<span class="n">Do</span> <span class="ow">not</span> <span class="n">update</span> <span class="n">the</span> <span class="k">global</span> <span class="n">history</span> <span class="n">attribute</span><span class="o">.</span>
<span class="n">If</span> <span class="n">the</span> <span class="n">merged</span> <span class="n">product</span> <span class="ow">is</span> <span class="n">empty</span><span class="p">,</span> <span class="n">a</span> <span class="n">warning</span> <span class="n">will</span> <span class="n">be</span> <span class="n">printed</span> <span class="ow">and</span> <span class="n">the</span>
<span class="n">tool</span> <span class="n">will</span> <span class="k">return</span> <span class="k">with</span> <span class="n">exit</span> <span class="n">code</span> <span class="mi">2</span> <span class="p">(</span><span class="n">without</span> <span class="n">writing</span> <span class="n">a</span> <span class="n">file</span><span class="p">)</span><span class="o">.</span>
<span class="n">harpmerge</span> <span class="o">-</span><span class="n">h</span><span class="p">,</span> <span class="o">--</span><span class="n">help</span>
<span class="n">Show</span> <span class="n">help</span> <span class="p">(</span><span class="n">this</span> <span class="n">text</span><span class="p">)</span><span class="o">.</span>
<span class="n">harpmerge</span> <span class="o">-</span><span class="n">v</span><span class="p">,</span> <span class="o">--</span><span class="n">version</span>
<span class="n">Print</span> <span class="n">the</span> <span class="n">version</span> <span class="n">number</span> <span class="n">of</span> <span class="n">HARP</span> <span class="ow">and</span> <span class="n">exit</span><span class="o">.</span>
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