TRMM
Tropical Rainfall Measuring Mission
past Mission
Type
Orbiter
Launch
Nov. 27, 1997
Target
Earth
Objective
Measure monthly and seasonal rainfall over the global tropics and subtropics
TRMM was a research satellite designed to improve our understanding of the distribution and variability of precipitation within Earth's tropical and subtropical regions. TRMM used several space-borne instruments to increase our understanding of the interactions between water vapor, clouds, and precipitation, central to regulating Earth's climate.
![](https://science.nasa.gov/wp-content/uploads/2023/06/trmm-in-space-large-jpg.webp?w=4096&format=png)
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