image of lightning strikes


Welcome to the GOES-R and GLM Cal/Val Portals!

The Geostationary Lightning Mapper (GLM) is a satellite-borne single channel, near-infrared optical transient detector on the NOAA Geostationary Operational Environmental Satellite – R Series.  


GLM data are available at NOAA CLASS.

GOES data are also available from AWS and Google Cloud

Validation data from the GOES-R Post Launch Test Field Campaign are available from NASA’s GHRC DAAC.


This site is primarily for the GLM Calibration and Validation Team.  For full access to Cal/Val Team resources, please log in via the User menu at top left.