Background

Access via web-api

The data is downloaded via web-api using python scripts. You will need to download the appropriate python modules to run these scripts. For example, the python scripts will contain commands like,

• "from ecmwfapi import ECMWFDataServer"

General information related to downloading the data via web-api, is described here:

https://confluence.ecmwf.int/display/WEBAPI/Web-API+Downloads

Specifically, follow the steps here to install the latest code version:

https://pypi.org/project/ecmwf-api-client/

Briefly, install this with the pip command:

• pip install ecmwf-api-client

You will now have the modules needed in the python scripts. (I actually needed this on the ECMWF system pip install --user ecmwf-api-client).

Login and retrieve your "key":

Login at:

• https://apps.ecmwf.int/auth/login/

Retrieve your key at:

• https://api.ecmwf.int/v1/key/

Create and paste the "key" information in here:

• $HOME/.ecmwfapirc

You will also need to accept the terms before you can access the data with web-api.

Accept terms and conditions.