1 | #!/usr/bin/env python |
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2 | # |
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3 | # This software is licensed under the terms of the Apache Licence Version 2.0 |
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4 | # which can be obtained at http://www.apache.org/licenses/LICENSE-2.0. |
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5 | # |
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6 | # Functionality provided: Prepare input 3D-wind fields in hybrid coordinates + surface fields for FLEXPART runs |
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7 | # |
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8 | # Creation: October 2014 - Anne Fouilloux - University of Oslo |
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9 | # Extension November 2015 - Leopold Haimberger - University of Vienna for: |
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10 | # - using the WebAPI also for general MARS retrievals |
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11 | # - job submission on ecgate and cca |
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12 | # - job templates suitable for twice daily operational dissemination |
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13 | # - dividing retrievals of longer periods into digestable chunks |
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14 | # - retrieve also longer term forecasts, not only analyses and short term forecast data |
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15 | # - conversion into GRIB2 |
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16 | # - conversion into .fp format for faster execution of FLEXPART |
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17 | # |
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18 | # |
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19 | # Further documentation may be obtained from www.flexpart.eu |
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20 | # |
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21 | # Requirements: |
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22 | # in addition to a standard python 2.6 or 2.7 installation the following packages need to be installed |
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23 | # ECMWF WebMARS, gribAPI with python enabled, emoslib, ecaccess web toolkit, all available from https://software.ecmwf.int/ |
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24 | # dateutils |
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25 | # matplotlib (optional, for debugging) |
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26 | # |
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27 | # Get MARS GRIB fields from ECMWF for FLEXPART |
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28 | # |
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29 | |
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30 | #import socket |
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31 | |
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32 | #hostname=socket.gethostname() |
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33 | #ecapi= 'ecmwf' not in hostname |
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34 | try: |
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35 | ecapi=True |
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36 | import ecmwfapi |
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37 | except ImportError: |
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38 | ecapi=False |
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39 | |
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40 | import calendar |
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41 | import shutil |
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42 | import datetime |
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43 | import time |
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44 | import os,glob,sys,inspect |
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45 | #from string import strip |
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46 | from argparse import ArgumentParser,ArgumentDefaultsHelpFormatter |
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47 | # add path to submit.py to pythonpath so that python finds its buddies |
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48 | localpythonpath=os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe()))) |
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49 | if localpythonpath not in sys.path: |
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50 | sys.path.append(localpythonpath) |
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51 | |
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52 | from FlexpartTools import ECFlexpart, \ |
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53 | Control, myerror, normalexit, \ |
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54 | interpret_args_and_control |
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55 | |
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56 | |
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57 | def getMARSdata(args, c): |
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58 | |
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59 | |
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60 | if not os.path.exists(c.inputdir): |
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61 | os.makedirs(c.inputdir) |
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62 | print("start date %s " % (c.start_date)) |
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63 | print("end date %s " % (c.end_date)) |
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64 | |
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65 | if ecapi: |
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66 | server = ecmwfapi.ECMWFService("mars") |
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67 | else: |
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68 | server = False |
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69 | |
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70 | c.ecapi = ecapi |
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71 | print 'ecapi:', c.ecapi |
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72 | |
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73 | # Retrieve ERA interim data for running flexpart |
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74 | #AP change this variant to correct format conversion with datetime |
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75 | #AP import datetime and timedelta explicitly |
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76 | syear = int(c.start_date[:4]) |
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77 | smonth = int(c.start_date[4:6]) |
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78 | sday = int(c.start_date[6:]) |
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79 | start = datetime.date(year=syear, month=smonth, day=sday) |
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80 | startm1 = start - datetime.timedelta(days=1) |
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81 | if c.basetime == '00': |
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82 | start = startm1 |
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83 | eyear = int(c.end_date[:4]) |
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84 | emonth = int(c.end_date[4:6]) |
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85 | eday = int(c.end_date[6:]) |
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86 | end = datetime.date(year=eyear, month=emonth, day=eday) |
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87 | if c.basetime == '00' or c.basetime == '12': |
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88 | endp1 = end + datetime.timedelta(days=1) |
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89 | else: |
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90 | endp1 = end + datetime.timedelta(days=2) |
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91 | |
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92 | datechunk = datetime.timedelta(days=int(c.date_chunk)) |
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93 | print 'removing content of ' + c.inputdir |
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94 | tobecleaned = glob.glob(c.inputdir + '/*_acc_*.' + str(os.getppid()) + '.*.grb') |
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95 | for f in tobecleaned: |
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96 | os.remove(f) |
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97 | |
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98 | times=None |
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99 | if c.maxstep<24: |
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100 | day=startm1 |
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101 | while day<endp1: |
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102 | # we need to retrieve MARS data for this period (maximum one month) |
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103 | flexpart = ECFlexpart(c,fluxes=True) |
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104 | if day+datechunk-datetime.timedelta(days=1)<endp1: |
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105 | dates= day.strftime("%Y%m%d") + "/to/" + (day+datechunk-datetime.timedelta(days=1)).strftime("%Y%m%d") |
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106 | else: |
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107 | dates= day.strftime("%Y%m%d") + "/to/" + end.strftime("%Y%m%d") |
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108 | |
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109 | print "retrieve " + dates + " in dir " + c.inputdir |
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110 | try: |
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111 | flexpart.retrieve(server, dates, times, c.inputdir) |
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112 | except IOError: |
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113 | myerror(c,'MARS request failed') |
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114 | |
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115 | day+=datechunk |
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116 | else: |
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117 | day=start |
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118 | while day<=end: |
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119 | # we need to retrieve MARS data for this period (maximum one month) |
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120 | flexpart = ECFlexpart(c,fluxes=True) |
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121 | if day+datechunk-datetime.timedelta(days=1)<end: |
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122 | dates= day.strftime("%Y%m%d") + "/to/" + (day+datechunk-datetime.timedelta(days=1)).strftime("%Y%m%d") |
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123 | else: |
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124 | dates= day.strftime("%Y%m%d") + "/to/" + end.strftime("%Y%m%d") |
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125 | |
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126 | print "retrieve " + dates + " in dir " + c.inputdir |
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127 | flexpart.retrieve(server, dates, times, c.inputdir) |
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128 | day+=datechunk |
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129 | |
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130 | |
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131 | |
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132 | tobecleaned=glob.glob(c.inputdir+'/*__*.'+str(os.getppid())+'.*.grb') |
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133 | for f in tobecleaned: |
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134 | os.remove(f) |
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135 | day=start |
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136 | times=None |
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137 | while day<=end: |
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138 | |
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139 | # we need to retrieve MARS data for this period (maximum one month) |
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140 | flexpart = ECFlexpart(c) |
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141 | if day+datechunk-datetime.timedelta(days=1)<end: |
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142 | dates= day.strftime("%Y%m%d") + "/to/" + (day+datechunk-datetime.timedelta(days=1)).strftime("%Y%m%d") |
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143 | else: |
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144 | dates= day.strftime("%Y%m%d") + "/to/" + end.strftime("%Y%m%d") |
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145 | print "retrieve " + dates + " in dir " + c.inputdir |
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146 | |
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147 | flexpart.retrieve(server, dates, times, c.inputdir) |
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148 | day+=datechunk |
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149 | |
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150 | |
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151 | if __name__ == "__main__": |
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152 | |
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153 | args,c=interpret_args_and_control() |
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154 | getMARSdata(args,c) |
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155 | normalexit(c) |
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