Introduction

The Eumetsat “Satellite Application Facilities” (SAF) are dedicated centres of excellence for processing satellite data, and form an integral part of the distributed EUMETSAT Application Ground Segment (http://www.eumetsat.int).

This web is provided by the SAF on Support to Nowcasting and Very Short Range Forecasting, hereafter NWC SAF.

The main objective of NWC SAF is to provide, further develop and maintain software packages to be used for Nowcasting applications of operational meteorological satellite data by National Meteorological Services.

More information can be found at the NWC SAF webpage, http://nwc-saf.eumetsat.int.

These web pages are applicable to the NWC SAF processing package for geostationary meteorological satellites, NWC/GEO.

The NCWSAF distribute two software packages:

a) NCWSAF/GEO for processing data from geostationary (GEO) imager satellites. In version 2021 can be processed METEOSAT Second Generation (MSG), Himawari satellites and GOES-R class satellites.

b) NCWSAF/PPS for processing data from polar satellites .

In the case of the NCWSAF/GEO package, the purpose is to obtain nowcasting products on a region configurable by the users for every image.

The clear air product on the NWCSAF/GEO version 2021 is GEO-iSHAI (imaging Satellite Humidity And Instability).

Note: in version 2013 the name of the equivalent product was PGE13 SEVIRI Physical Retrieval (SPhR).