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64                7.1.2
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161           
162  <h1>Source code for prepare_flexpart</h1><div class="highlight"><pre>
163<span></span><span class="ch">#!/usr/bin/env python3</span>
164<span class="c1"># -*- coding: utf-8 -*-</span>
165<span class="c1">#*******************************************************************************</span>
166<span class="c1"># @Author: Anne Fouilloux (University of Oslo)</span>
167<span class="c1">#</span>
168<span class="c1"># @Date: October 2014</span>
169<span class="c1">#</span>
170<span class="c1"># @Change History:</span>
171<span class="c1">#</span>
172<span class="c1">#    November 2015 - Leopold Haimberger (University of Vienna):</span>
173<span class="c1">#        - using the WebAPI also for general MARS retrievals</span>
174<span class="c1">#        - job submission on ecgate and cca</span>
175<span class="c1">#        - job templates suitable for twice daily operational dissemination</span>
176<span class="c1">#        - dividing retrievals of longer periods into digestable chunks</span>
177<span class="c1">#        - retrieve also longer-term forecasts, not only analyses and</span>
178<span class="c1">#          short-term forecast data</span>
179<span class="c1">#        - conversion into GRIB2</span>
180<span class="c1">#       </span>
181<span class="c1">#</span>
182<span class="c1">#    February 2018 - Anne Philipp (University of Vienna):</span>
183<span class="c1">#        - applied PEP8 style guide</span>
184<span class="c1">#        - added documentation</span>
185<span class="c1">#        - minor changes in programming style for consistence</span>
186<span class="c1">#        - BUGFIX: removed call of clean_up-Function after call of</span>
187<span class="c1">#               prepareFlexpart in main since it is already called in</span>
188<span class="c1">#               prepareFlexpart at the end!</span>
189<span class="c1">#        - created function main and moved the two function calls for</span>
190<span class="c1">#          arguments and prepare_flexpart into it</span>
191<span class="c1">#</span>
192<span class="c1"># @License:</span>
193<span class="c1">#    (C) Copyright 2014-2019.</span>
194<span class="c1">#    Anne Philipp, Leopold Haimberger</span>
195<span class="c1">#</span>
196<span class="c1">#    SPDX-License-Identifier: CC-BY-4.0</span>
197<span class="c1">#</span>
198<span class="c1">#    This work is licensed under the Creative Commons Attribution 4.0</span>
199<span class="c1">#    International License. To view a copy of this license, visit</span>
200<span class="c1">#    http://creativecommons.org/licenses/by/4.0/ or send a letter to</span>
201<span class="c1">#    Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.</span>
202<span class="c1"># *******************************************************************************</span>
203<span class="c1"># pylint: disable=ungrouped-imports</span>
204<span class="c1"># not necessary that we group the imports</span>
205<span class="sd">&#39;&#39;&#39;This script prepares the final version of the grib files which are</span>
206<span class="sd">then used by FLEXPART.</span>
207
208<span class="sd">It converts the bunch of grib files extracted via get_mars_data before,</span>
209<span class="sd">by doing the necessary conversion to obtain consistent grids or the</span>
210<span class="sd">disaggregation of flux data. Finally, the data fields are combined</span>
211<span class="sd">in files per hour available with the naming convention xxYYMMDDHH,</span>
212<span class="sd">where xx should be 2 arbitrary letters (mostly xx is chosen to be &quot;EN&quot;).</span>
213
214<span class="sd">This file can also be imported as a module which then contains the following</span>
215<span class="sd">functions:</span>
216
217<span class="sd">    * main</span>
218<span class="sd">    * prepare_flexpart</span>
219
220<span class="sd">Type: prepare_flexpart.py --help</span>
221<span class="sd">to get information about command line parameters.</span>
222<span class="sd">Read the documentation for usage instructions.</span>
223<span class="sd">&#39;&#39;&#39;</span>
224
225<span class="c1"># ------------------------------------------------------------------------------</span>
226<span class="c1"># MODULES</span>
227<span class="c1"># ------------------------------------------------------------------------------</span>
228<span class="kn">from</span> <span class="nn">__future__</span> <span class="kn">import</span> <span class="n">print_function</span>
229
230<span class="kn">import</span> <span class="nn">datetime</span>
231<span class="kn">import</span> <span class="nn">os</span>
232<span class="kn">import</span> <span class="nn">inspect</span>
233<span class="kn">import</span> <span class="nn">sys</span>
234
235<span class="c1"># software specific classes and modules from flex_extract</span>
236<span class="c1"># add path to local main python path for flex_extract to get full access</span>
237<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>
238    <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>
239<span class="c1"># pylint: disable=wrong-import-position</span>
240<span class="c1">#import _config</span>
241<span class="kn">from</span> <span class="nn">Mods.checks</span> <span class="kn">import</span> <span class="n">check_ppid</span>
242<span class="kn">from</span> <span class="nn">Classes.UioFiles</span> <span class="kn">import</span> <span class="n">UioFiles</span>
243<span class="c1">#from Classes.ControlFile import ControlFile</span>
244<span class="kn">from</span> <span class="nn">Mods.tools</span> <span class="kn">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">make_dir</span><span class="p">,</span> <span class="n">normal_exit</span><span class="p">)</span>
245<span class="kn">from</span> <span class="nn">Classes.EcFlexpart</span> <span class="kn">import</span> <span class="n">EcFlexpart</span>
246<span class="c1"># pylint: enable=wrong-import-position</span>
247
248<span class="c1"># ------------------------------------------------------------------------------</span>
249<span class="c1"># FUNCTION</span>
250<span class="c1"># ------------------------------------------------------------------------------</span>
251<div class="viewcode-block" id="main"><a class="viewcode-back" href="../Documentation/Api/api_python.html#prepare_flexpart.main">[docs]</a><span class="k">def</span> <span class="nf">main</span><span class="p">():</span>
252    <span class="sd">&#39;&#39;&#39;Controls the program to prepare FLEXPART input files from MARS data.</span>
253
254<span class="sd">    This is done if called directly from the command line.</span>
255<span class="sd">    Then, arguments and control file are taken as input.</span>
256
257<span class="sd">    Parameters</span>
258<span class="sd">    ----------</span>
259
260<span class="sd">    Return</span>
261<span class="sd">    ------</span>
262
263<span class="sd">    &#39;&#39;&#39;</span>
264
265    <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>
266    <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>
267    <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>
268
269    <span class="k">return</span></div>
270
271<div class="viewcode-block" id="prepare_flexpart"><a class="viewcode-back" href="../Documentation/Api/api_python.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>
272    <span class="sd">&#39;&#39;&#39;Converts the MARS data into files ready as input for FLEXPART.</span>
273
274<span class="sd">    Certain fields are converted to a different grid and the flux</span>
275<span class="sd">    data are disaggregated. Fields are collected by hour and stored in a file </span>
276<span class="sd">    with a specific naming convention.</span>
277
278<span class="sd">    Parameters</span>
279<span class="sd">    ----------</span>
280<span class="sd">    ppid : int</span>
281<span class="sd">        Contains the ppid number of the current ECMWF job. It will be None if</span>
282<span class="sd">        the method was called within this module.</span>
283
284<span class="sd">    c : ControlFile</span>
285<span class="sd">        Contains all the parameters of CONTROL file and</span>
286<span class="sd">        command line.</span>
287
288<span class="sd">    Return</span>
289<span class="sd">    ------</span>
290
291<span class="sd">    &#39;&#39;&#39;</span>
292    <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>
293
294    <span class="c1"># create the start and end date</span>
295    <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>
296                          <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>
297                          <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>
298
299    <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>
300                        <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>
301                        <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>
302
303    <span class="c1"># if basetime is 00</span>
304    <span class="c1"># assign starting date minus 1 day</span>
305    <span class="c1"># since we need the 12 hours upfront</span>
306    <span class="c1"># (the day before from 12 UTC to current day 00 UTC)</span>
307    <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>
308        <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>
309
310    <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>
311          <span class="s1">&#39;/to/&#39;</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>
312
313    <span class="c1"># create output dir if necessary</span>
314    <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>
315        <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>
316
317    <span class="c1"># get all files with flux data to be deaccumulated</span>
318    <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>
319
320    <span class="c1"># deaccumulate the flux data</span>
321    <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>
322    <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>
323    <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>
324
325    <span class="c1"># get a list of all other files</span>
326    <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>
327
328    <span class="c1"># produce FLEXPART-ready GRIB files and process them -</span>
329    <span class="c1"># copy/transfer/interpolate them or make them GRIB2</span>
330    <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>
331    <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>
332    <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="ow">and</span> <span class="n">c</span><span class="o">.</span><span class="n">doubleelda</span><span class="p">:</span>
333        <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>
334    <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>
335
336    <span class="c1"># check if in debugging mode, then store all files</span>
337    <span class="c1"># otherwise delete temporary files</span>
338    <span class="k">if</span> <span class="n">c</span><span class="o">.</span><span class="n">debug</span><span class="p">:</span>
339        <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>
340    <span class="k">else</span><span class="p">:</span>
341        <span class="n">clean_up</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
342
343    <span class="k">return</span></div>
344
345<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>
346    <span class="n">main</span><span class="p">()</span>
347</pre></div>
348
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