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#!/usr/bin/env python
from ecmwfapi import ECMWFDataServer

modelVersionDate = "2014-01-01"  # This is the first model version for BoM (babj)
hindcastDate = "2013-09-01"      # The selected hindcast date
server = ECMWFDataServer()

server.retrieve({
    "class": "s2",
    "dataset": "s2s",
    "date": modelVersionDate,
    "expver": "prod",
    "hdate": hindcastDate, 
    "levtype": "pl",
    "levelist": "500/700/850/925/1000",
    "origin": "ammc",
    "param": "130/156",
    "step": "24/to/720/by/24",
    "stream": "enfh",
    "target": "data.pf.sfc",
    "time": "00",
    "number": "1/2/3to/32/by/1",
    "type": "pf",
})

#!/usr/bin/env python
from ecmwfapi import ECMWFDataServer
server = ECMWFDataServer()

def retrieve_BoM_reforecast():
    """
       A function to demonstrate how to iterate efficiently over all hincastYears, hincastMonths etc
    """
    hindcastYearStart = 1981
    hindcastYearEnd = 2013
    hindcastMonthStart = 1
    hindcastMonthEnd = 12
    hindcastDays = list(range(1, 27, 5)) # hindcastDays available are: 1, 6, 11, 21. 26 
    for hindcastYear in list(range(hindcastYearStart, hindcastYearEnd + 1)):
        for hindcastMonth in list(range(hindcastMonthStart, hindcastMonthEnd + 1)):
            hindcastDates = []
            for hindcastDay in hindcastDays:
                hindcastDate = '%04d%02d%02d' % (
                    hindcastYear, hindcastMonth, hindcastDay)
                hindcastDates.append(hindcastDate)
           ee
            target = "data_s2s_ammc_%04d%02d.grb" % (hindcastYear, hindcastMonth)
            BoM_reforecast_request("/".join(hindcastDates), target)

def BoM_reforecast_request(hindcastDate, target):
    """
       A BoM reforecast requests. Change the keywords below to adapt it to your needs.
    """
    modelVersionDate = "2014-01-01"
    server.retrieve({
        "class": "s2",
        "dataset": "s2s",
        "date": modelVersionDate,
        "expver": "prod",
        "hdate": hindcastDate,
        "levtype": "pl",
        "levelist": "500/700/850/925/1000",
        "origin": "ammc",
        "param": "130/156",
        "step": "24/to/720/by/24",
        "stream": "enfh",
        "target": target,
        "time": "00",
        "number": "1/to32/2by/31",
        "type": "pf",
    })

if __name__ == '__main__':
    retrieve_BoM_reforecast()