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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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for date in dates |
Web-API examples:
A TIGGE request for some dates for one "origin"
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ie select a set of dates and times and add, the 'steps', 'origins', 'levels' and 'parameters' that you need.
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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() |
A TIGGE request for some dates for two "origin"
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Useful links
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