[2fb99de] | 1 | #!/usr/bin/env python |
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| 2 | # -*- coding: utf-8 -*- |
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| 3 | #******************************************************************************* |
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| 4 | # @Author: Anne Fouilloux (University of Oslo) |
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| 5 | # |
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| 6 | # @Date: October 2014 |
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| 7 | # |
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| 8 | # @Change History: |
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| 9 | # |
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| 10 | # November 2015 - Leopold Haimberger (University of Vienna): |
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| 11 | # - moved the getEIdata program into a function "get_mars_data" |
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| 12 | # - moved the AgurmentParser into a seperate function |
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| 13 | # - adatpted the function for the use in flex_extract |
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| 14 | # - renamed file to get_mars_data |
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| 15 | # |
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| 16 | # February 2018 - Anne Philipp (University of Vienna): |
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| 17 | # - applied PEP8 style guide |
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| 18 | # - added structured documentation |
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| 19 | # - minor changes in programming style for consistence |
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| 20 | # - added function main and moved function calls vom __main__ there |
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| 21 | # (necessary for better documentation with docstrings for later |
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| 22 | # online documentation) |
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| 23 | # - use of UIFiles class for file selection and deletion |
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| 24 | # |
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| 25 | # |
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| 26 | # @License: |
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| 27 | # (C) Copyright 2014-2018. |
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| 28 | # |
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| 29 | # This software is licensed under the terms of the Apache Licence Version 2.0 |
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| 30 | # which can be obtained at http://www.apache.org/licenses/LICENSE-2.0. |
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| 31 | # |
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| 32 | # @Program Functionality: |
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| 33 | # This program can be used as a module in the whole flex_extract process |
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| 34 | # or can be run by itself to just extract MARS data from ECMWF. To do so, |
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| 35 | # a couple of necessary parameters has to be passed with the program call. |
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| 36 | # See documentation for more details. |
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| 37 | # |
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| 38 | # @Program Content: |
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| 39 | # - main |
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| 40 | # - get_mars_data |
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| 41 | # - do_retrievement |
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| 42 | # |
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| 43 | #******************************************************************************* |
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| 44 | |
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| 45 | # ------------------------------------------------------------------------------ |
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| 46 | # MODULES |
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| 47 | # ------------------------------------------------------------------------------ |
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| 48 | import os |
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| 49 | import sys |
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| 50 | import datetime |
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| 51 | import inspect |
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| 52 | try: |
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| 53 | ecapi = True |
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| 54 | import ecmwfapi |
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| 55 | except ImportError: |
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| 56 | ecapi = False |
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| 57 | |
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| 58 | # software specific classes and modules from flex_extract |
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| 59 | from tools import my_error, normal_exit, get_cmdline_arguments, read_ecenv |
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| 60 | from EcFlexpart import EcFlexpart |
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| 61 | from UioFiles import UioFiles |
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| 62 | |
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| 63 | # add path to pythonpath so that python finds its buddies |
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| 64 | LOCAL_PYTHON_PATH = os.path.dirname(os.path.abspath( |
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| 65 | inspect.getfile(inspect.currentframe()))) |
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| 66 | if LOCAL_PYTHON_PATH not in sys.path: |
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| 67 | sys.path.append(LOCAL_PYTHON_PATH) |
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| 68 | |
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| 69 | # ------------------------------------------------------------------------------ |
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| 70 | # FUNCTION |
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| 71 | # ------------------------------------------------------------------------------ |
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| 72 | def main(): |
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| 73 | ''' |
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| 74 | @Description: |
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| 75 | If get_mars_data is called from command line, this function controls |
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| 76 | the program flow and calls the argumentparser function and |
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| 77 | the get_mars_data function for retrieving EC data. |
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| 78 | |
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| 79 | @Input: |
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| 80 | <nothing> |
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| 81 | |
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| 82 | @Return: |
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| 83 | <nothing> |
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| 84 | ''' |
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| 85 | |
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| 86 | args = get_cmdline_arguments() |
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| 87 | |
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| 88 | try: |
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| 89 | c = ControlFile(args.controlfile) |
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| 90 | except IOError: |
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| 91 | try: |
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| 92 | c = ControlFile(LOCAL_PYTHON_PATH + args.controlfile) |
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| 93 | except IOError: |
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| 94 | print 'Could not read CONTROL file "' + args.controlfile + '"' |
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| 95 | print 'Either it does not exist or its syntax is wrong.' |
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| 96 | print 'Try "' + sys.argv[0].split('/')[-1] + \ |
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| 97 | ' -h" to print usage information' |
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| 98 | sys.exit(1) |
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| 99 | |
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| 100 | env_parameter = read_ecenv(c.ecmwfdatadir + 'python/ECMWF_ENV') |
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| 101 | c.assign_args_to_control(args, env_parameter) |
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| 102 | c.assign_envs_to_control(env_parameter) |
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| 103 | c.check_conditions() |
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| 104 | |
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| 105 | get_mars_data(c) |
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| 106 | normal_exit(c.mailfail, 'Done!') |
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| 107 | |
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| 108 | return |
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| 109 | |
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| 110 | def get_mars_data(c): |
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| 111 | ''' |
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| 112 | @Description: |
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| 113 | Retrieves the EC data needed for a FLEXPART simulation. |
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| 114 | Start and end dates for retrieval period is set. Retrievals |
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| 115 | are divided into smaller periods if necessary and datechunk parameter |
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| 116 | is set. |
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| 117 | |
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| 118 | @Input: |
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| 119 | c: instance of class ControlFile |
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| 120 | Contains all the parameters of CONTROL file, which are e.g.: |
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| 121 | DAY1(start_date), DAY2(end_date), DTIME, MAXSTEP, TYPE, TIME, |
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| 122 | STEP, CLASS(marsclass), STREAM, NUMBER, EXPVER, GRID, LEFT, |
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| 123 | LOWER, UPPER, RIGHT, LEVEL, LEVELIST, RESOL, GAUSS, ACCURACY, |
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| 124 | OMEGA, OMEGADIFF, ETA, ETADIFF, DPDETA, SMOOTH, FORMAT, |
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| 125 | ADDPAR, WRF, CWC, PREFIX, ECSTORAGE, ECTRANS, ECFSDIR, |
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| 126 | MAILOPS, MAILFAIL, GRIB2FLEXPART, FLEXPARTDIR, BASETIME |
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| 127 | DATE_CHUNK, DEBUG, INPUTDIR, OUTPUTDIR, FLEXPART_ROOT_SCRIPTS |
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| 128 | |
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| 129 | For more information about format and content of the parameter |
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| 130 | see documentation. |
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| 131 | |
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| 132 | @Return: |
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| 133 | <nothing> |
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| 134 | ''' |
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| 135 | |
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| 136 | if not os.path.exists(c.inputdir): |
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| 137 | os.makedirs(c.inputdir) |
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| 138 | |
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| 139 | if c.request == 0 or c.request == 2: |
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| 140 | print("Retrieving EC data!") |
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| 141 | elif c.request == 1: |
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| 142 | print("Printing mars requests!") |
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| 143 | |
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| 144 | print("start date %s " % (c.start_date)) |
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| 145 | print("end date %s " % (c.end_date)) |
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| 146 | |
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| 147 | if ecapi: |
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| 148 | server = ecmwfapi.ECMWFService("mars") |
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| 149 | else: |
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| 150 | server = False |
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| 151 | |
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| 152 | c.ecapi = ecapi |
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| 153 | print('Using ECMWF WebAPI: ' + str(c.ecapi)) |
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| 154 | |
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| 155 | # basetime geht rückwärts |
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| 156 | |
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| 157 | # if basetime 00 |
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| 158 | # dann wird von 12 am vortag bis 00 am start tag geholt |
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| 159 | # aber ohne 12 selbst sondern 12 + step |
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| 160 | |
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| 161 | # if basetime 12 |
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| 162 | # dann wird von 00 + step bis 12 am start tag geholt |
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| 163 | |
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| 164 | # purer forecast wird vorwärts bestimmt. |
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| 165 | # purer forecast mode ist dann wenn größer 24 stunden |
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| 166 | # wie kann das noch festgestellt werden ???? |
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| 167 | # nur FC und steps mehr als 24 ? |
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| 168 | # die einzige problematik beim reinen forecast ist die benennung der files! |
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| 169 | # also sobald es Tagesüberschneidungen gibt |
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| 170 | # allerdings ist das relevant und ersichtlich an den NICHT FLUSS DATEN |
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| 171 | |
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| 172 | |
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| 173 | # set start date of retrieval period |
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| 174 | start = datetime.date(year=int(c.start_date[:4]), |
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| 175 | month=int(c.start_date[4:6]), |
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| 176 | day=int(c.start_date[6:])) |
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| 177 | startm1 = start - datetime.timedelta(days=1) |
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| 178 | |
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| 179 | # set end date of retrieval period |
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| 180 | end = datetime.date(year=int(c.end_date[:4]), |
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| 181 | month=int(c.end_date[4:6]), |
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| 182 | day=int(c.end_date[6:])) |
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| 183 | |
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| 184 | # set time period for one single retrieval |
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| 185 | datechunk = datetime.timedelta(days=int(c.date_chunk)) |
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| 186 | |
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| 187 | if c.basetime == '00': |
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| 188 | start = startm1 |
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| 189 | |
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| 190 | if c.basetime == '00' or c.basetime == '12': |
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| 191 | # endp1 = end + datetime.timedelta(days=1) |
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| 192 | endp1 = end |
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| 193 | else: |
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| 194 | # endp1 = end + datetime.timedelta(days=2) |
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| 195 | endp1 = end + datetime.timedelta(days=1) |
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| 196 | |
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| 197 | # -------------- flux data ------------------------------------------------ |
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| 198 | if c.request == 0 or c.request == 2: |
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| 199 | print('... removing old flux content of ' + c.inputdir) |
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| 200 | tobecleaned = UioFiles(c.inputdir, |
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| 201 | '*_acc_*.' + str(os.getppid()) + '.*.grb') |
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| 202 | tobecleaned.delete_files() |
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| 203 | |
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| 204 | # if forecast for maximum one day (upto 24h) are to be retrieved, |
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| 205 | # collect accumulation data (flux data) |
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| 206 | # with additional days in the beginning and at the end |
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| 207 | # (used for complete disaggregation of original period) |
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| 208 | if c.maxstep <= 24: |
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| 209 | do_retrievement(c, server, startm1, endp1, datechunk, fluxes=True) |
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| 210 | |
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| 211 | # if forecast data longer than 24h are to be retrieved, |
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| 212 | # collect accumulation data (flux data) |
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| 213 | # with the exact start and end date |
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| 214 | # (disaggregation will be done for the |
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| 215 | # exact time period with boundary conditions) |
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| 216 | else: |
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| 217 | do_retrievement(c, server, start, end, datechunk, fluxes=True) |
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| 218 | |
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| 219 | # -------------- non flux data -------------------------------------------- |
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| 220 | if c.request == 0 or c.request == 2: |
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| 221 | print('... removing old non flux content of ' + c.inputdir) |
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| 222 | tobecleaned = UioFiles(c.inputdir, |
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| 223 | '*__*.' + str(os.getppid()) + '.*.grb') |
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| 224 | tobecleaned.delete_files() |
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| 225 | |
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| 226 | do_retrievement(c, server, start, end, datechunk, fluxes=False) |
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| 227 | |
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| 228 | return |
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| 229 | |
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| 230 | def do_retrievement(c, server, start, end, delta_t, fluxes=False): |
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| 231 | ''' |
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| 232 | @Description: |
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| 233 | Divides the complete retrieval period in smaller chunks and |
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| 234 | retrieves the data from MARS. |
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| 235 | |
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| 236 | @Input: |
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| 237 | c: instance of ControlFile |
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| 238 | Contains all the parameters of CONTROL file, which are e.g.: |
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| 239 | DAY1(start_date), DAY2(end_date), DTIME, MAXSTEP, TYPE, TIME, |
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| 240 | STEP, CLASS(marsclass), STREAM, NUMBER, EXPVER, GRID, LEFT, |
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| 241 | LOWER, UPPER, RIGHT, LEVEL, LEVELIST, RESOL, GAUSS, ACCURACY, |
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| 242 | OMEGA, OMEGADIFF, ETA, ETADIFF, DPDETA, SMOOTH, FORMAT, |
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| 243 | ADDPAR, WRF, CWC, PREFIX, ECSTORAGE, ECTRANS, ECFSDIR, |
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| 244 | MAILOPS, MAILFAIL, GRIB2FLEXPART, FLEXPARTDIR, BASETIME |
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| 245 | DATE_CHUNK, DEBUG, INPUTDIR, OUTPUTDIR, FLEXPART_ROOT_SCRIPTS |
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| 246 | |
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| 247 | For more information about format and content of the parameter |
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| 248 | see documentation. |
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| 249 | |
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| 250 | server: instance of ECMWFService |
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| 251 | The server connection to ECMWF |
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| 252 | |
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| 253 | start: instance of datetime |
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| 254 | The start date of the retrieval. |
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| 255 | |
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| 256 | end: instance of datetime |
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| 257 | The end date of the retrieval. |
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| 258 | |
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| 259 | delta_t: instance of datetime |
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| 260 | Delta_t +1 is the maximal time period of a single |
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| 261 | retrieval. |
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| 262 | |
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| 263 | fluxes: boolean, optional |
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| 264 | Decides if the flux parameters are to be retrieved or |
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| 265 | the rest of the parameter list. |
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| 266 | Default value is False. |
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| 267 | |
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| 268 | @Return: |
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| 269 | <nothing> |
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| 270 | ''' |
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| 271 | |
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| 272 | # since actual day also counts as one day, |
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| 273 | # we only need to add datechunk - 1 days to retrieval |
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| 274 | # for a period |
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| 275 | delta_t_m1 = delta_t - datetime.timedelta(days=1) |
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| 276 | |
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| 277 | day = start |
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| 278 | while day <= end: |
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| 279 | flexpart = EcFlexpart(c, fluxes) |
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| 280 | tmpday = day + delta_t_m1 |
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| 281 | if tmpday < end: |
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| 282 | dates = day.strftime("%Y%m%d") + "/to/" + \ |
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| 283 | tmpday.strftime("%Y%m%d") |
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| 284 | else: |
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| 285 | dates = day.strftime("%Y%m%d") + "/to/" + \ |
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| 286 | end.strftime("%Y%m%d") |
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| 287 | |
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| 288 | |
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| 289 | print("... retrieve " + dates + " in dir " + c.inputdir) |
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| 290 | |
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| 291 | try: |
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| 292 | flexpart.retrieve(server, dates, c.request, c.inputdir) |
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| 293 | except IOError: |
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| 294 | my_error(c.mailfail, 'MARS request failed') |
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| 295 | |
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| 296 | day += delta_t |
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| 297 | |
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| 298 | return |
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| 299 | |
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| 300 | if __name__ == "__main__": |
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| 301 | main() |
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