GMI Instrument

Measurements and Applications

Measures rainfall rates over oceans and land, combined rainfall structure and surface rainfall rates with associated latent heating. Used to produce three hour, daily, and monthly total rainfall maps over oceans and land.

Instrument Summary

Full Name
GPM Microwave Imager
Status
Operational
Instrument Agencies
Maturity
Instrument Type
Imaging multi-spectral radiometers (passive microwave)
Geometry
Conical scanning
Instrument Technology
Multi-purpose imaging MW radiometer
Sampling
Imaging
Data Access
Open Access
Data Format
HDF-EOS(HDF5)

Performance Summary

Resolution
Horizontal: 36 km cross-track at 10.65 GHz (required - Primary Spacecraft, goal - Constellation Spacecraft); 10 km along-track and cross-track (goal - Primary Spacecraft)
Swath
800 km (Core Observatory
Accuracy
0.65 - 1.5 K
Waveband
Microwave: 10.65 GHz, 18.7 GHz, 23.8 GHz, 36.5 GHz, 89.0 GHz, 165.5 GHz, 183.31 ± 3 GHz, 183.31 ± 8 GHz
MW (~0.1 cm - ~100 cm)

Instrument Missions

GPM Constellation - Global Precipitation Measurement Mission Constellation spacecraft (2014 - 2019)
GPM Core - Global Precipitation Measurement Mission Core spacecraft (2014 - 2026)

Instrument Measurements