See Brief request syntax to understand each keyword.

We have created some request examples. You can see the explanation and then a link to the ECMWF Public Dataset web interface.

When click to the "ECMWF Public Dataset web interface" link, the values will be pre-selected. To see the script you have to use "View MARS Request" button.

ERA-Interim Surface

ECMWF Public Dataset web interface

A basic example

#!/usr/bin/env python
from ecmwfapi import ECMWFDataServer
   
server = ECMWFDataServer()
   
server.retrieve({
    'stream'    : "oper",
    'levtype'   : "sfc",
    'param'     : "165.128/166.128/167.128",
    'dataset'   : "interim",
    'step'      : "0",
    'grid'      : "0.75/0.75",
    'time'      : "00/06/12/18",
    'date'      : "2014-07-01/to/2014-07-31",
    'type'      : "an",
    'class'     : "ei",
    'target'    : "interim_2014-07-01to2014-07-31_00061218.grib"
})


Add 'format' : "netcdf" to request the data in NetCDF format instead of grib

#!/usr/bin/env python
from ecmwfapi import ECMWFDataServer
   
server = ECMWFDataServer()
   
server.retrieve({
    'stream'    : "oper",
    'levtype'   : "sfc",
    'param'     : "165.128/166.128/167.128",
    'dataset'   : "interim",
    'step'      : "0",
    'grid'      : "0.75/0.75",
    'time'      : "00/06/12/18",
    'date'      : "2014-07-01/to/2014-07-31",
    'type'      : "an",
    'class'     : "ei",
    'format'    : "netcdf",
    'target'    : "interim_2014-07-01to2014-07-31_00061218.nc"
 })

Specify the desired sub-area of data to be extracted

#!/usr/bin/env python
from ecmwfapi import ECMWFDataServer
   
server = ECMWFDataServer()
   
server.retrieve({
    'stream'    : "oper",
    'levtype'   : "sfc",
    'param'     : "165.128/166.128/167.128",
    'dataset'   : "interim",
    'step'      : "0",
    'grid'      : "0.75/0.75",
    'time'      : "00/06/12/18",
    'date'      : "2014-07-01/to/2014-07-31",
    'type'      : "an",
    'class'     : "ei",
    'area'      : "73.5/-27/33/45",
    'format'    : "netcdf",
    'target'    : "interim_2014-07-01to2014-07-31_00061218.nc"
 })

ERA-Interim Monthly Means of Daily Means

ECMWF Public Dataset web interface

ERA-Interim Model Levels

ECMWF Public Dataset web interface

ERA-Interim Pressure Levels

ECMWF Public Dataset web interface