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autoget.py
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autoget.py
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############################################################
# Program is part of PyAPS #
# Copyright 2012, by the California Institute of Technology#
# Contact: earthdef@gps.caltech.edu #
# Modified by A. Benoit and R. Jolivet 2019 #
# Ecole Normale Superieure, Paris #
# Contact: insar@geologie.ens.fr #
############################################################
import configparser as ConfigParser
import sys
import os.path
import cdsapi
# disable InsecureRequestWarning message from cdsapi
import urllib3
urllib3.disable_warnings()
######Set up variables in model.cfg before using
dpath = os.path.dirname(__file__)
config = ConfigParser.RawConfigParser(delimiters='=')
config.read('%s/model.cfg'%(dpath))
def ECMWFdload(bdate,hr,filedir,model='ERA5',datatype='fc',humidity='Q',snwe=None,flist=None):
'''
ECMWF data downloading.
Args:
* bdate : date to download (str)
* hr : hour to download (str)
* filedir : files directory (str)
* model : weather model ('ERA5', 'ERAINT', 'HRES')
* datatype : reanalysis data type (an)
* snwe : area extent (tuple of int)
* humidity : humidity
'''
#-------------------------------------------
# Initialize
# Check data
assert model in ('ERA5', 'ERAINT', 'HRES'), 'Unknown model for ECMWF: {}'.format(model)
# Infos for downloading
if model in 'ERAINT':
print('WARNING: you are downloading from the old ECMWF platform. '
'ERA-Interim is deprecated, use ERA-5 instead.')
if model in 'ERA5':
print('INFO: You are using the latest ECMWF platform for downloading datasets: '
'https://cds.climate.copernicus.eu/api/v2')
#-------------------------------------------
# Define parameters
# Humidity
assert humidity in ('Q','R'), 'Unknown humidity field for ECMWF'
if humidity in 'Q':
if model in 'ERA5':
humidparam = 'specific_humidity'
else:
humidparam = 133
elif humidity in 'R':
if model in 'ERA5':
humidparam = 'relative_humidity'
else:
humidparam = 157
# Grid size (only for HRES and ERA-Interim)
if model in 'HRES':
gridsize = '0.10/0.10'
elif model in 'ERAINT':
gridsize = '0.75/0.75'
#-------------------------------------------
# file name
if not flist:
flist = []
for k in range(len(bdate)):
day = bdate[k]
if model == 'ERA5':
fname = os.path.join(filedir, 'ERA-5_{}_{}.grb'.format(day, hr))
elif model == 'ERAINT':
fname = os.path.join(filedir, 'ERA-Int_{}_{}.grb'.format(day, hr))
elif model in 'HRES':
fname = os.path.join(filedir, 'HRES_{}_{}.grb'.format(day, hr))
else:
raise ValueError('unrecognized model input: {}'.format(model))
flist.append(fname)
# Iterate over dates
for k in range(len(bdate)):
day = bdate[k]
fname = flist[k]
#-------------------------------------------
# CASE 1: request for CDS API client (new ECMWF platform, for ERA-5)
if model in 'ERA5':
url = 'https://cds.climate.copernicus.eu/api/v2'
key = config.get('CDS', 'key')
# Contact the server
c = cdsapi.Client(url=url, key=key)
# Pressure levels
pressure_lvls = ['1','2','3','5','7','10','20','30','50',
'70','100','125','150','175','200','225',
'250','300','350','400','450','500','550',
'600','650','700','750','775','800','825',
'850','875','900','925','950','975','1000']
# Dictionary
indict = {'product_type' :'reanalysis',
'format' :'grib',
'variable' :['geopotential','temperature','{}'.format(humidparam)],
'pressure_level' : pressure_lvls,
'year' :'{}'.format(day[0:4]),
'month' :'{}'.format(day[4:6]),
'day' :'{}'.format(day[6:8]),
'time' :'{}:00'.format(hr)}
# download a geographical area subset
if snwe is not None:
s, n, w, e = snwe
indict['area'] = '/'.join(['{:.2f}'.format(x) for x in [n, w, s, e]])
# Assert grib file not yet downloaded
if not os.path.exists(fname):
print('Downloading %d of %d: %s '%(k+1,len(bdate), fname))
print(indict)
# Make the request
c.retrieve('reanalysis-{}-pressure-levels'.format(model.lower()),indict,target=fname)
#-------------------------------------------
# CASE 2: request for WEB API client (old ECMWF platform, deprecated, for ERA-Int and HRES)
else:
# Contact the server
from pyaps3.ecmwfapi import ECMWFDataServer
url = "https://api.ecmwf.int/v1"
emid = config.get('ECMWF', 'email')
key = config.get('ECMWF', 'key')
server = ECMWFDataServer(url=url, key=key, email=emid)
# Dictionary
indict = {'dataset' : '{}'.format(model),
'type' : '{}'.format(datatype),
'date' : '{}'.format(day),
'time' : '{}'.format(hr),
'step' : '0',
'levtype' : "pl",
'levelist' : "all",
'grid' : '{}'.format(gridsize),
'param' : '129/130/{}'.format(humidparam),
'target' : '{}'.format(fname)}
# Assert grib file not yet downloaded
if not os.path.exists(fname):
print('Downloading %d of %d: %s '%(k+1,len(bdate),fname))
print(indict)
# Make the request
server.retrieve(indict)
return flist
def MERRAdload(bdate,hr,filedir, hdf=False):
print('By default, downloads MERRA-2 data.')
user = config.get('MERRA', 'user')
pw = config.get('MERRA', 'password')
if not os.path.isdir(filedir):
os.makedirs(filedir)
print('create foler: {}'.format(filedir))
flist = []
for i in range(len(bdate)):
date = bdate[i]
filename = '%s/merra-%s-%s.nc4' %(filedir,date,hr)
flist.append(filename)
print('Downloading %d of %d: %s'%((i+1),len(bdate),filename))
yr = date[0:4]
mon = date[4:6]
hr = hr
year = int(yr)
url1 = 'http://goldsmr5.gesdisc.eosdis.nasa.gov/daac-bin/OTF/'
url1 += 'HTTP_services.cgi?FILENAME=%2Fdata%2Fs4pa%2FMERRA2%2FM2I6NPANA.5.12.4%2F'
url2 = '%2F'
url3 = '%2FMERRA2_300.inst6_3d_ana_Np.'
url3n = '%2FMERRA2_400.inst6_3d_ana_Np.'
url3o = '%2FMERRA2_100.inst6_3d_ana_Np.'
url4 = '.nc4&FORMAT=bmM0Yy8&BBOX=-90%2C-180%2C90%2C180&TIME=1979-01-01T'
url5 = '%3A00%3A00%2F1979-01-01T'
url6 = '%3A00%3A00&LABEL=svc_MERRA2_300.inst6_3d_ana_Np.'
url6n = '%3A00%3A00&LABEL=svc_MERRA2_400.inst6_3d_ana_Np.'
url6o = '%3A00%3A00&LABEL=svc_MERRA2_100.inst6_3d_ana_Np.'
url7 = '.nc4&FLAGS=&SHORTNAME=M2I6NPANA&SERVICE=SUBSET_MERRA2&LAYERS=&VERSION=1.02&VARIABLES='
if year < 1992:
weburl = '%s%s%s%s%s%s%s%s%s%s%s%s%s' %(url1,yr,url2,mon,url3o,date,url4,hr,url5,hr,url6o,date,url7)
elif year < 2001:
weburl = '%s%s%s%s%s%s%s%s%s%s%s%s%s' %(url1,yr,url2,mon,url3,date,url4,hr,url5,hr,url6,date,url7)
else:
weburl = '%s%s%s%s%s%s%s%s%s%s%s%s%s' %(url1,yr,url2,mon,url3n,date,url4,hr,url5,hr,url6n,date,url7)
dir = '%s' %(filename)
if not os.path.exists(dir):
#urllib.urlretrieve(weburl,dir)
dloadCmd = 'wget "{}" --user {} --password {} -O {}'.format(weburl, user, pw, filename)
dloadCmd += ' --load-cookies ~/.urs_cookies --save-cookies ~/.urs_cookies'
dloadCmd += ' --auth-no-challenge=on --keep-session-cookies'
os.system(dloadCmd)
return flist
def NARRdload(bdate,hr,filedir):
if not os.path.isdir(filedir):
os.makedirs(filedir)
print('create foler: {}'.format(filedir))
flist = []
for k in range(len(bdate)):
day = bdate[k]
webdir = day[0:6]
fname = 'narr-a_221_%s_%s00_000.grb'%(day,hr)
flist.append('%s/%s'%(filedir,fname))
weburl='http://nomads.ncdc.noaa.gov/data/narr/%s/%s/%s'%(webdir,day,fname)
dname = '%s/%s'%(filedir,fname)
print('Downloading %d of %d: %s'%(k+1,len(bdate),fname))
if not os.path.exists(dname):
urlretrieve(weburl,dname) #,reporthook)
return flist