Introduction

In the ECMWF data store (ECDS) established in 2024, users can find selection of WMO public datasets managed by ECMWF.

The ECDS is powered by CDS technology (access via CDS-API, discovery forms etc). It shares the same authentication system, so that users can access any dataset across all data stores (CDS, ADS, EWDS, ECDS).

Datasets

TIGGE and S2S

The data access to TIGGE and S2S is now being migrated from Web-API to CDS-API (in ECDS). For more information about the timelines, please consult the dedicated page Decommissioning of ECMWF Public Datasets service.

TIGGE and S2S have been the first datasets moved to ECDS. Follow the links below to the dedicated main web spaces for given dataset:

To get data via ECDS, multiple options exist. Please notice, that for TIGGE there are not the dedicated ECDS forms to disposal yet.

TIGGE
- https://ecds.ecmwf.int/datasets/tigge
  - discover and download sample TIGGE forecasts using dedicated MARS catalogue
S2S
- https://ecds.ecmwf.int/datasets/s2s-forecasts
  - discover and download sample S2S forecasts using dedicated ECDS forms
- https://ecds.ecmwf.int/datasets/s2s-reforecasts
  - discover and download sample S2S reforecasts using dedicated ECDS forms
- https://ecds.ecmwf.int/datasets/s2s
  - discover and download sample S2S forecasts and reforecasts using dedicated MARS catalogue

The overview of the older and new ways how to access TIGGE or S2S data is avaiable in User guide for migration of S2S and TIGGE to ECDS

User with experience getting the data via Web-API can found information what to expect and how to update their workflows in YYY (User guide for migration of S2S and TIGGE to ECDS)