We are in the process of migrating all NASA Earth science data sites into Earthdata from now until end of 2026. Not all NASA Earth science data and resources will appear here until then. Thank you for your patience as we make this transition.
Read about the Web Unification Project
NASA’s Tropical Rainfall Measuring Mission (TRMM) monitors the distribution and variability of tropical precipitation and how these rainfall patterns affect Earth's weather and climate.
Type
Earth Observation Satellite
Launch
Nov. 27, 1997
Objective
Measure monthly and seasonal rainfall over the global tropics and subtropics
Instruments Aboard TRMM
| Instrument Name | Operational Date(s) | Spectral Resolution | Type of Instrument |
|---|---|---|---|
| Precipitation Radar | Profiler/Sounders | ||
| Clouds and Earth's Radiant Energy System (CERES) | November 27, 1997 - present | 0.3-5 µm (SW); 0.3-200 µm (TOT); 8-11 µm (WN; PFM, FM1-FM5 ); 5-35 µm (LW; FM6) |
Spectrometers/Radiometers |
| Lightning Imaging Sensor (LIS) | Narrow-band filter centered at 777 nm |
Spectrometer/Radiometer | |
| Tropical Rainfall Measuring Mission (TRMM) Microwave Imager (TMI) | Spectrometers/Radiometers | ||
| Visible and Infrared Scanner (VIRS) (VIRS) | 0.63µm; 1.6µm; 3.75µm; 10.8µm and 12µm |
Spectrometers/Radiometers |
Frequently Asked Questions
Earthdata Forum
Our online forum provides a space for users to browse thousands of FAQs about research needs, data, and data applications. You can also submit new questions for our experts to answer.
Submit Questions to Earthdata Forumand View Expert Responses