GPM IMERG — Global Precipitation Half-Hourly

Global ~10 km half-hourly precipitation estimate fusing GPM core observatory + constellation passive-microwave radiometers + geostationary IR. Three latencies: Early (4 h), Late (14 h), Final (3 months). Used as flash-flood antecedent input and global storm validation.

ProviderNASA / JAXA
Delivery modestream
CNR score70
CadencePT30M
Originhttps://gpm.nasa.gov/data/imerg