New dataset published in the CDS: In-situ observations of water vapour and atmospheric delay from the ground-based GNSS network from 1996 to present

We are pleased to announce that a new dataset have been published today, 23th November 2022, in the Climate Data Store (CDS):

• In-situ observations of water vapour and atmospheric delay from the ground-based GNSS network from 1996 to present

The dataset provides estimates of water vapour derived from atmospheric delays in Global Navigation Satellite System (GNSS) radio signals. 

These data were obtained by homogeneous processing of Zenith Total Delays from two networks of GNSS stations, the International GNSS Service (IGS) and the European Reference (EUREF) Permanent Network (EPN).

The datasets may now be downloaded from the Climate Data Store either interactively using the CDS web interface ("Download data") or programmatically using the CDS API service.

For any enquiries regarding this dataset, please contact us.

ECMWF Support