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Table of Contents

Real-time forecasts:

The BoM real-time forecasts are produced twice a week (every Sundays and Thursdays) with 33 members.

1.1 param, 1 date

Retrieving one field (total precipitation here) for all time steps and  for the forecast starting on 8th February 2015:

 

Code Block
languagepy
 #!/usr/bin/env python
from ecmwfapi import ECMWFDataServer
server = ECMWFDataServer()
server.retrieve({
    "class": "s2",
    "dataset": "s2s",
    "date": "2015-02-08",
    "expver": "prod",
    "levtype": "sfc",
    "origin": "ammc",
    "param": "tp",
    "step": "24/to/1488/by/24",
    "stream": "enfo",
    "target": "CHANGEME",
    "time": "00",
    "type": "cf",
})

 

 
 
Code Block
languagepy
  #!/usr/bin/env python
from ecmwfapi import ECMWFDataServer
server = ECMWFDataServer()
server.retrieve({
    "class": "s2",
    "dataset": "s2s",
    "date": "2015-02-08",
    "expver": "prod",
    "levtype": "sfc",
    "origin": "ammc",
    "param": "tp",
    "step": "24/to/1488/by/24",
    "stream": "enfo",
    "target": "CHANGEME",
    "time": "00", 
    "number": "1/to/32",
    "type": "pf",
 })

1.2 1 param, series of dates

Retrieving one field (total precipitation here) for all time steps and  for all the forecast starting between  8 February  and 26 February 2015:

Code Block
languagepy
 #!/usr/bin/env python
from ecmwfapi import ECMWFDataServer
server = ECMWFDataServer()
server.retrieve({
    "class": "s2",
    "dataset": "s2s",
    "date": "2015-02-08/2015-02-12/2015-02-15/2015-02-19/2015-02-22/2015-02-26",
    "expver": "prod",
    "levtype": "sfc",
    "origin": "ammc",
    "param": "tp",
    "step": "24/to/1488/by/24",
    "stream": "enfo",
    "target": "CHANGEME",
    "time": "00",
    "type": "cf",
})

 

  
 
Code Block
languagepy
  #!/usr/bin/env python
from ecmwfapi import ECMWFDataServer
server = ECMWFDataServer()
server.retrieve({
    "class": "s2",
    "dataset": "s2s",
    "date": "2015-02-08/2015-02-12/2015-02-15/2015-02-19/2015-02-22/2015-02-26",
    "expver": "prod",
    "levtype": "sfc",
    "origin": "ammc",
    "param": "tp",
    "step": "24/to/1488/by/24",
    "stream": "enfo",
    "target": "CHANGEME",
    "time": "00", 
    "number": "1/to/32",
    "type": "pf",
 })

Re-forecasts

The re-forecasts start on the 1st/6th/11th/16th/21st/26th of each month from 1981 to 2013.

The BoM re-forecasts dataset is a "fixed" dataset which means that the re-forecasts are produced once from a "frozen" version of the model and are used for a number of years to calibrate real-time forecast. The BoM re-forecasts consist of a 33-member ensemble run 6 times a month (1st/6th/11th/16th/21st/26th of each month) from1981 to 2013. The S2S database contains the full BoM re-forecast dataset.

...

  • hdate which corresponds to the actual starting date of the re-forecast
  • date which correspond tot he ModelVersionDate.Since the BoM re-forecasts are "fixed" re-forecasts this ModelVersiondate is the same for all the re-forecasts and equal to 20140101. This variable will change when a new version of the model will be implemented.

2.1 1 param, 1 date

Code Block
languagepy
 #!/usr/bin/env python
from ecmwfapi import ECMWFDataServer
server = ECMWFDataServer()
server.retrieve({
    "class": "s2",
    "dataset": "s2s",
    "hdate": "1981-01-01",
    "date": "2014-01-01", 
    "expver": "prod",
    "levtype": "sfc",
    "origin": "ammc",
    "param": "tp",
    "step": "24/to/1488/by/24",
    "stream": "enfh",
    "target": "CHANGEME",
    "time": "00",
    "type": "cf",
})

...

Code Block
languagepy
  #!/usr/bin/env python
from ecmwfapi import ECMWFDataServer
server = ECMWFDataServer()
server.retrieve({
    "class": "s2",
    "dataset": "s2s",
    "hdate": "1981-01-01",
    "date": "2014-01-01", 
    "expver": "prod",
    "levtype": "sfc",
    "origin": "ammc",
    "param": "tp",
    "step": "24/to/1488/by/24",
    "stream": "enfh",
    "target": "CHANGEME",
    "time": "00",
    "type": "pf",
    "number": "1/to/32",
})

2. 2 Re- forecasts used to calibrate a  real-time forecast:

Retrieving one field (total precipitation here) for all time steps and  for all the re-forecast used to calibrate the real-time forecast starting on 8 February 2015. For this request, all the re-forecasts starting on 6 February 1981-2013 and11 February 1981-2013 are retrieved

2.2.1 Control forecast
Code Block
languagepy
 #!/usr/bin/env python
from ecmwfapi import ECMWFDataServer
server = ECMWFDataServer()
server.retrieve({
 "class": "s2",
 "dataset": "s2s",
"hdate": "19810206/19820206/19830206/19840206/19850206/19860206/19870206/19880206/19890206/19900206/19910206/19920206/19930206/19940206/19950206/19960206/19970206/19980206/19990206/20000206/20010206/20020206/20030206/20040206/20050206/20060206/20070206/20080206/20090206/20100206/20110206/20120206/20130206",
 "expver": "prod",
 "levtype": "sfc",
 "origin": "ammc",
 "param": "tp",
 "step": "24/to/1488/by/24",
 "stream": "enfh",
 "target": "CHANGEME",
 "time": "00",
 "type": "cf",
" date": "20140101",
})

 

 

Code Block
languagepy
 #!/usr/bin/env python
from ecmwfapi import ECMWFDataServer
server = ECMWFDataServer()
server.retrieve({
 "class": "s2",
 "dataset": "s2s",
"hdate": "19810211/19820211/19830211/19840211/19850211/19860211/19870211/19880211/19890211/19900211/19910211/19920211/19930211/19940211/19950211/19960211/19970211/19980211/19990211/20000211/20010211/20020211/20030211/20040211/20050211/20060211/20070211/20080211/20090211/20100211/20110211/20120211/20130211",
 "expver": "prod",
 "levtype": "sfc",
 "origin": "ammc",
 "param": "tp",
 "step": "24/to/1488/by/24",
 "stream": "enfh",
 "target": "CHANGEME",
 "time": "00",
 "type": "cf",
" date": "20140101",
})

 

 

 

2.2.2 Perturbed forecasts
Code Block
languagepy
 #!/usr/bin/env python
from ecmwfapi import ECMWFDataServer
server = ECMWFDataServer()
server.retrieve({
 "class": "s2",
 "dataset": "s2s",
"hdate": "19810206/19820206/19830206/19840206/19850206/19860206/19870206/19880206/19890206/19900206/19910206/19920206/19930206/19940206/19950206/19960206/19970206/19980206/19990206/20000206/20010206/20020206/20030206/20040206/20050206/20060206/20070206/20080206/20090206/20100206/20110206/20120206/20130206",
 "expver": "prod",
 "levtype": "sfc",
 "origin": "ammc",
 "param": "tp",
 "step": "24/to/1488/by/24",
 "stream": "enfh",
 "target": "CHANGEME",
 "time": "00",
 "type": "pf",
 "number": "1/to/32",
" date": "20140101",
})

 

 

Code Block
languagepy
 #!/usr/bin/env python
from ecmwfapi import ECMWFDataServer
server = ECMWFDataServer()
server.retrieve({
 "class": "s2",
 "dataset": "s2s",
"hdate": "19810211/19820211/19830211/19840211/19850211/19860211/19870211/19880211/19890211/19900211/19910211/19920211/19930211/19940211/19950211/19960211/19970211/19980211/19990211/20000211/20010211/20020211/20030211/20040211/20050211/20060211/20070211/20080211/20090211/20100211/20110211/20120211/20130211",
 "expver": "prod",
 "levtype": "sfc",
 "origin": "ammc",
 "param": "tp",
 "step": "24/to/1488/by/24",
 "stream": "enfh",
 "target": "CHANGEME",
 "time": "00",
 "type": "pf",
 "number": "1/to/32",
" date": "20140101",
})