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In general it is organised, as a huge tree, with the indentation below, showing different levels down that tree:
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#!/usr/bin/env python
from ecmwfapi import ECMWFDataServer
server = ECMWFDataServer()
def retrieve_tigge_data():
dates = ['2014-10-01', '2014-11-01']
times = ['00', '12']
for date in dates:
for time in times:
target = 'ecmwf_sfc_%s_%s.grb' % (date, time)
tigge_pf_sfc_request(date, time, target)
target = 'ecmwf_pl_%s_%s.grb' % (date, time)
tigge_pf_pl_request(date, time, target)
def tigge_pf_pl_request(date, time, target):
'''
A TIGGE request for perturbed forecast, pressure level, ECMWF Center.
Please note that a subset of the available data is requested below.
The cost of this request is xxx fields and xxx GB
Change the keywords below to adapt it to your needs. (ie to add more parameters, or numbers etc)
'''
server.retrieve({
'class': 'ti',
'dataset': 'tigge',
'date': date,
'expver': 'prod',
'grid': '0.5/0.5',
'levelist': '200/250/300/500/',
'levtype': 'pl',
'number': '1/TO/10',
'origin': 'ecmf',
'param': '130/131/132/133',
'step': '0/TO/96/BY/12',
'target': target,
'time': time,
'type': 'pf',
})
def tigge_pf_sfc_request(date, time, target):
'''
A TIGGE request for perturbed forecast, sfc, ECMWF Center.
Please note that a subset of the available data is requested below.
The cost of this request is xxx fields and xxx GB
Change the keywords below to adapt it to your needs. (ie to add more parameters, or numbers etc)
'''
server.retrieve({
'class': 'ti',
'dataset': 'tigge',
'date': date,
'expver': 'prod',
'grid': '0.5/0.5',
'levtype': 'sfc',
'number': '1/TO/10',
'origin': 'ecmf',
'param': '146/147/151/165/166/167/168/176/177',
'step': '0/TO/96/BY/12',
'target': target,
'time': time,
'type': 'pf',
})
if __name__ == '__main__':
retrieve_tigge_data()
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A TIGGE request for some dates for two "
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origins"
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#!/usr/bin/env python
from ecmwfapi import ECMWFDataServer
server = ECMWFDataServer()
def retrieve_tigge_data():
dates = ['2014-12-01', '2014-12-02']
times = ['00', '12']
for date in dates:
for time in times:
target = 'tigge_cf_sfc_%s_%s.grb' % (date, time)
tigge_cf_sfc_request(date, time, target)
def tigge_cf_sfc_request(date, time, target):
'''
A TIGGE request for control forecast, sfc, for 3 Centers : ECMWF, JMA and KMA.
You can change the keywords below to adapt it to your needs, (ie to add more parameters, or steps etc),
however you need to check the availability of requested Centers.
'''
server.retrieve({
'class': 'ti',
'dataset': 'tigge',
'date': date,
'expver': 'prod',
'grid': '0.5/0.5',
'levtype': 'sfc',
'origin': 'ecmf/rjtd/rksl',
'param': '167/168',
'step': '0/96/168',
'target': target,
'time': time,
'type': 'cf',
})
if __name__ == '__main__':
retrieve_tigge_data()
 It is not efficient to organise your requests per origin. (eg to submit different requests per origin) |
Useful links
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