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138      <li>prepare_flexpart</li>
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153  <h1>Source code for prepare_flexpart</h1><div class="highlight"><pre>
154<span></span><span class="ch">#!/usr/bin/env python</span>
155<span class="c1"># -*- coding: utf-8 -*-</span>
156<span class="c1">#*******************************************************************************</span>
157<span class="c1"># @Author: Anne Fouilloux (University of Oslo)</span>
158<span class="c1">#</span>
159<span class="c1"># @Date: October 2014</span>
160<span class="c1">#</span>
161<span class="c1"># @Change History:</span>
162<span class="c1">#</span>
163<span class="c1">#    November 2015 - Leopold Haimberger (University of Vienna):</span>
164<span class="c1">#        - using the WebAPI also for general MARS retrievals</span>
165<span class="c1">#        - job submission on ecgate and cca</span>
166<span class="c1">#        - job templates suitable for twice daily operational dissemination</span>
167<span class="c1">#        - dividing retrievals of longer periods into digestable chunks</span>
168<span class="c1">#        - retrieve also longer term forecasts, not only analyses and</span>
169<span class="c1">#          short term forecast data</span>
170<span class="c1">#        - conversion into GRIB2</span>
171<span class="c1">#        - conversion into .fp format for faster execution of FLEXPART</span>
172<span class="c1">#</span>
173<span class="c1">#    February 2018 - Anne Philipp (University of Vienna):</span>
174<span class="c1">#        - applied PEP8 style guide</span>
175<span class="c1">#        - added documentation</span>
176<span class="c1">#        - minor changes in programming style for consistence</span>
177<span class="c1">#        - BUGFIX: removed call of clean_up-Function after call of</span>
178<span class="c1">#               prepareFlexpart in main since it is already called in</span>
179<span class="c1">#               prepareFlexpart at the end!</span>
180<span class="c1">#        - created function main and moved the two function calls for</span>
181<span class="c1">#          arguments and prepare_flexpart into it</span>
182<span class="c1">#</span>
183<span class="c1"># @License:</span>
184<span class="c1">#    (C) Copyright 2014-2019.</span>
185<span class="c1">#    Anne Philipp, Leopold Haimberger</span>
186<span class="c1">#</span>
187<span class="c1">#    This work is licensed under the Creative Commons Attribution 4.0</span>
188<span class="c1">#    International License. To view a copy of this license, visit</span>
189<span class="c1">#    http://creativecommons.org/licenses/by/4.0/ or send a letter to</span>
190<span class="c1">#    Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.</span>
191<span class="c1">#*******************************************************************************</span>
192<span class="sd">&#39;&#39;&#39;This script prepares the final version of the grib files which are</span>
193<span class="sd">then used by FLEXPART.</span>
194
195<span class="sd">It converts the bunch of grib files extracted via get_mars_data before,</span>
196<span class="sd">by doing the necessary conversion to get consistent grids or the</span>
197<span class="sd">disaggregation of flux data. Finally, the data fields are combined</span>
198<span class="sd">in files per available hour with the naming convention xxYYMMDDHH,</span>
199<span class="sd">where xx should be 2 arbitrary letters (mostly xx is chosen to be &quot;EN&quot;).</span>
200
201<span class="sd">This file can also be imported as a module which then contains the following</span>
202<span class="sd">functions:</span>
203
204<span class="sd">    * main</span>
205<span class="sd">    * prepare_flexpart</span>
206
207<span class="sd">Type: prepare_flexpart.py --help</span>
208<span class="sd">to get information about command line parameters.</span>
209<span class="sd">Read the documentation for usage instructions.</span>
210<span class="sd">&#39;&#39;&#39;</span>
211
212<span class="c1"># ------------------------------------------------------------------------------</span>
213<span class="c1"># MODULES</span>
214<span class="c1"># ------------------------------------------------------------------------------</span>
215<span class="kn">import</span> <span class="nn">datetime</span>
216<span class="kn">import</span> <span class="nn">os</span>
217<span class="kn">import</span> <span class="nn">inspect</span>
218<span class="kn">import</span> <span class="nn">sys</span>
219<span class="kn">import</span> <span class="nn">socket</span>
220
221<span class="c1"># software specific classes and modules from flex_extract</span>
222<span class="c1"># add path to local main python path for flex_extract to get full access</span>
223<span class="n">sys</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">dirname</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">abspath</span><span class="p">(</span>
224    <span class="n">inspect</span><span class="o">.</span><span class="n">getfile</span><span class="p">(</span><span class="n">inspect</span><span class="o">.</span><span class="n">currentframe</span><span class="p">())))</span> <span class="o">+</span> <span class="s1">&#39;/../&#39;</span><span class="p">)</span>
225<span class="kn">import</span> <span class="nn">_config</span>
226<span class="kn">from</span> <span class="nn">checks</span> <span class="k">import</span> <span class="n">check_ppid</span>
227<span class="kn">from</span> <span class="nn">classes.UioFiles</span> <span class="k">import</span> <span class="n">UioFiles</span>
228<span class="kn">from</span> <span class="nn">classes.ControlFile</span> <span class="k">import</span> <span class="n">ControlFile</span>
229<span class="kn">from</span> <span class="nn">tools</span> <span class="k">import</span> <span class="p">(</span><span class="n">setup_controldata</span><span class="p">,</span> <span class="n">clean_up</span><span class="p">,</span> <span class="n">get_cmdline_args</span><span class="p">,</span>
230                   <span class="n">read_ecenv</span><span class="p">,</span> <span class="n">make_dir</span><span class="p">)</span>
231<span class="kn">from</span> <span class="nn">classes.EcFlexpart</span> <span class="k">import</span> <span class="n">EcFlexpart</span>
232
233<span class="c1"># ------------------------------------------------------------------------------</span>
234<span class="c1"># FUNCTION</span>
235<span class="c1"># ------------------------------------------------------------------------------</span>
236<div class="viewcode-block" id="main"><a class="viewcode-back" href="../api.html#prepare_flexpart.main">[docs]</a><span class="k">def</span> <span class="nf">main</span><span class="p">():</span>
237    <span class="sd">&#39;&#39;&#39;Controls the program to prepare flexpart input files from mars data.</span>
238
239<span class="sd">    This is done if it is called directly from command line.</span>
240<span class="sd">    Then it also takes program call arguments and control file input.</span>
241
242<span class="sd">    Parameters</span>
243<span class="sd">    ----------</span>
244
245<span class="sd">    Return</span>
246<span class="sd">    ------</span>
247
248<span class="sd">    &#39;&#39;&#39;</span>
249
250    <span class="n">c</span><span class="p">,</span> <span class="n">ppid</span><span class="p">,</span> <span class="n">_</span><span class="p">,</span> <span class="n">_</span> <span class="o">=</span> <span class="n">setup_controldata</span><span class="p">()</span>
251    <span class="n">prepare_flexpart</span><span class="p">(</span><span class="n">ppid</span><span class="p">,</span> <span class="n">c</span><span class="p">)</span>
252    <span class="n">normal_exit</span><span class="p">(</span><span class="s1">&#39;Preparing FLEXPART output files: Done!&#39;</span><span class="p">)</span>
253
254    <span class="k">return</span></div>
255
256<div class="viewcode-block" id="prepare_flexpart"><a class="viewcode-back" href="../api.html#prepare_flexpart.prepare_flexpart">[docs]</a><span class="k">def</span> <span class="nf">prepare_flexpart</span><span class="p">(</span><span class="n">ppid</span><span class="p">,</span> <span class="n">c</span><span class="p">):</span>
257    <span class="sd">&#39;&#39;&#39;Converts the mars data into flexpart ready input files.</span>
258
259<span class="sd">    Specific data fields are converted to a different grid and the flux</span>
260<span class="sd">    data are going to be disaggregated. The data fields are collected by</span>
261<span class="sd">    hour and stored in a file with a specific FLEXPART relevant naming</span>
262<span class="sd">    convention.</span>
263
264<span class="sd">    Parameters</span>
265<span class="sd">    ----------</span>
266<span class="sd">    ppid : int</span>
267<span class="sd">        Contains the ppid number of the current ECMWF job. It will be None if</span>
268<span class="sd">        the method was called within this module.</span>
269
270<span class="sd">    c : ControlFile</span>
271<span class="sd">        Contains all the parameters of CONTROL file and</span>
272<span class="sd">        command line.</span>
273
274<span class="sd">    Return</span>
275<span class="sd">    ------</span>
276
277<span class="sd">    &#39;&#39;&#39;</span>
278    <span class="n">check_ppid</span><span class="p">(</span><span class="n">c</span><span class="p">,</span> <span class="n">ppid</span><span class="p">)</span>
279
280    <span class="c1"># create the start and end date</span>
281    <span class="n">start</span> <span class="o">=</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">(</span><span class="n">year</span><span class="o">=</span><span class="nb">int</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">start_date</span><span class="p">[:</span><span class="mi">4</span><span class="p">]),</span>
282                          <span class="n">month</span><span class="o">=</span><span class="nb">int</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">start_date</span><span class="p">[</span><span class="mi">4</span><span class="p">:</span><span class="mi">6</span><span class="p">]),</span>
283                          <span class="n">day</span><span class="o">=</span><span class="nb">int</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">start_date</span><span class="p">[</span><span class="mi">6</span><span class="p">:]))</span>
284
285    <span class="n">end</span> <span class="o">=</span> <span class="n">datetime</span><span class="o">.</span><span class="n">date</span><span class="p">(</span><span class="n">year</span><span class="o">=</span><span class="nb">int</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">end_date</span><span class="p">[:</span><span class="mi">4</span><span class="p">]),</span>
286                        <span class="n">month</span><span class="o">=</span><span class="nb">int</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">end_date</span><span class="p">[</span><span class="mi">4</span><span class="p">:</span><span class="mi">6</span><span class="p">]),</span>
287                        <span class="n">day</span><span class="o">=</span><span class="nb">int</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">end_date</span><span class="p">[</span><span class="mi">6</span><span class="p">:]))</span>
288
289    <span class="c1"># if basetime is 00</span>
290    <span class="c1"># assign starting date minus 1 day</span>
291    <span class="c1"># since we need the 12 hours upfront</span>
292    <span class="c1"># (the day before from 12 UTC to current day 00 UTC)</span>
293    <span class="k">if</span> <span class="n">c</span><span class="o">.</span><span class="n">basetime</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
294        <span class="n">start</span> <span class="o">=</span> <span class="n">start</span> <span class="o">-</span> <span class="n">datetime</span><span class="o">.</span><span class="n">timedelta</span><span class="p">(</span><span class="n">days</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span>
295
296    <span class="nb">print</span><span class="p">(</span><span class="s1">&#39;Prepare &#39;</span> <span class="o">+</span> <span class="n">start</span><span class="o">.</span><span class="n">strftime</span><span class="p">(</span><span class="s2">&quot;%Y%m</span><span class="si">%d</span><span class="s2">&quot;</span><span class="p">)</span> <span class="o">+</span>
297           <span class="s2">&quot;/to/&quot;</span> <span class="o">+</span> <span class="n">end</span><span class="o">.</span><span class="n">strftime</span><span class="p">(</span><span class="s2">&quot;%Y%m</span><span class="si">%d</span><span class="s2">&quot;</span><span class="p">))</span>
298
299    <span class="c1"># create output dir if necessary</span>
300    <span class="k">if</span> <span class="ow">not</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">exists</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">outputdir</span><span class="p">):</span>
301        <span class="n">make_dir</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">outputdir</span><span class="p">)</span>
302
303    <span class="c1"># get all files with flux data to be deaccumulated</span>
304    <span class="n">inputfiles</span> <span class="o">=</span> <span class="n">UioFiles</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">inputdir</span><span class="p">,</span> <span class="s1">&#39;*OG_acc_SL*.&#39;</span> <span class="o">+</span> <span class="nb">str</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">ppid</span><span class="p">)</span> <span class="o">+</span> <span class="s1">&#39;.*&#39;</span><span class="p">)</span>
305
306    <span class="c1"># deaccumulate the flux data</span>
307    <span class="n">flexpart</span> <span class="o">=</span> <span class="n">EcFlexpart</span><span class="p">(</span><span class="n">c</span><span class="p">,</span> <span class="n">fluxes</span><span class="o">=</span><span class="kc">True</span><span class="p">)</span>
308    <span class="n">flexpart</span><span class="o">.</span><span class="n">write_namelist</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
309    <span class="n">flexpart</span><span class="o">.</span><span class="n">deacc_fluxes</span><span class="p">(</span><span class="n">inputfiles</span><span class="p">,</span> <span class="n">c</span><span class="p">)</span>
310
311    <span class="c1"># get a list of all other files</span>
312    <span class="n">inputfiles</span> <span class="o">=</span> <span class="n">UioFiles</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">inputdir</span><span class="p">,</span> <span class="s1">&#39;????__??.*&#39;</span> <span class="o">+</span> <span class="nb">str</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">ppid</span><span class="p">)</span> <span class="o">+</span> <span class="s1">&#39;.*&#39;</span><span class="p">)</span>
313
314    <span class="c1"># produce FLEXPART-ready GRIB files and process them -</span>
315    <span class="c1"># copy/transfer/interpolate them or make them GRIB2</span>
316    <span class="n">flexpart</span> <span class="o">=</span> <span class="n">EcFlexpart</span><span class="p">(</span><span class="n">c</span><span class="p">,</span> <span class="n">fluxes</span><span class="o">=</span><span class="kc">False</span><span class="p">)</span>
317    <span class="n">flexpart</span><span class="o">.</span><span class="n">create</span><span class="p">(</span><span class="n">inputfiles</span><span class="p">,</span> <span class="n">c</span><span class="p">)</span>
318    <span class="k">if</span> <span class="n">c</span><span class="o">.</span><span class="n">stream</span><span class="o">.</span><span class="n">lower</span><span class="p">()</span> <span class="o">==</span> <span class="s1">&#39;elda&#39;</span><span class="p">:</span>
319        <span class="n">flexpart</span><span class="o">.</span><span class="n">calc_extra_elda</span><span class="p">(</span><span class="n">c</span><span class="o">.</span><span class="n">inputdir</span><span class="p">,</span> <span class="n">c</span><span class="o">.</span><span class="n">prefix</span><span class="p">)</span>
320    <span class="n">flexpart</span><span class="o">.</span><span class="n">process_output</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
321
322    <span class="c1"># make use of a possible conversion to a</span>
323    <span class="c1"># specific flexpart binary format</span>
324    <span class="k">if</span> <span class="n">c</span><span class="o">.</span><span class="n">grib2flexpart</span><span class="p">:</span>
325        <span class="n">flexpart</span><span class="o">.</span><span class="n">prepare_fp_files</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
326
327    <span class="c1"># check if in debugging mode, then store all files</span>
328    <span class="c1"># otherwise delete temporary files</span>
329    <span class="k">if</span> <span class="n">c</span><span class="o">.</span><span class="n">debug</span><span class="p">:</span>
330        <span class="nb">print</span><span class="p">(</span><span class="s1">&#39;</span><span class="se">\n</span><span class="s1">Temporary files left intact&#39;</span><span class="p">)</span>
331    <span class="k">else</span><span class="p">:</span>
332        <span class="n">clean_up</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
333
334    <span class="k">return</span></div>
335
336<span class="k">if</span> <span class="vm">__name__</span> <span class="o">==</span> <span class="s2">&quot;__main__&quot;</span><span class="p">:</span>
337    <span class="n">main</span><span class="p">()</span>
338</pre></div>
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