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Installing your API key

To access ECMWF you will need an  API key. For that you first need to login at https://apps.ecmwf.int/auth/login/ and then retrieve you key at https://api.ecmwf.int/v1/key/. For this, you will need to have an account on ECMWF web site. Copy the information in this page and paste it in the file $HOME/.ecmwfapirc.

Content $HOME/.ecmwfapirc
{
    "url"   : "https://api.ecmwf.int/v1",
    "key"   : "XXXXXXXXXXXXXXXXXXXXXX",
    "email" : "john.smith@example.com"
}

Sample Python script

Below is a simple Python script making use of the ecmwfapi library:

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

server = ECMWFDataServer()

server.retrieve({
    'dataset' : "tigge",
    'step'    : "24/to/120/by/24",
    'number'  : "all",
    'levtype' : "sl",
    'date'    : "20071001/to/20071003",
    'time'    : "00/12",
    'origin'  : "all",
    'type'    : "pf",
    'param'   : "tp",
    'area'    : "70/-130/30/-60",
    'grid'    : "2/2",
    'target'  : "data.grib"
    })

The "dataset" parameter is one of:

 To access these dataset, you need to agree on the  the corresponding terms and conditions that can be found under the "Licence" link in the table above. See http://apps.ecmwf.int/datasets/ for the content of the datasets. The other parameters are described at: http://www.ecmwf.int/publications/manuals/mars/guide/index.html

Proxies

This tool is based on the python module urllib2, and therefore use the http_proxy and https_proxy environment variables if they are set. You should set these variables in your Unix shell if your organisation runs an outgoing proxy.

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