Microwave Rain Techniques
SSM/I Era: five radiometers since 1987
- early statistical rain rate algorithms
- 1990s: PIP/AIP programs, intercomparisons
- improved rain screening
- explicit mesoscale model physics
- finite cloud effects, 3-D radiative transfer
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TRMM Era: November 27, 1997 launch
- low-inclination LEO with SSM/I-like microwave imager, first precipitation radar
- profiling algorithms, radar+radiometer combinations
- recent emphasis placed on “near real time” use:
- rapid imagery, combinations with other satellite sensors
- NWP forecast model impact