TRMM_3B42_V6_3HOURLY
The Tropical Rainfall Measuring Mission (TRMM) is a joint U.S.-Japan
satellite missio...
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The Tropical Rainfall Measuring Mission (TRMM) is a joint U.S.-Japan
satellite mission to monitor tropical and subtropical precipitation
and to estimate its associated latent heating. TRMM was successfully
launched on November 27, at 4:27 PM (EST) from the Tanegashima Space
Center in Japan.
The rainfall measuring instruments on the TRMM satellite include the
Precipitation Radar (PR), an electronically scanning radar operating
at 13.8 GHz; TRMM Microwave Image (TMI), a nine-channel passive
microwave radiometer; and Visible and Infrared Scanner (VIRS), a
five-channel visible/infrared radiometer.
The purpose of the 3B42 algorithm is to produce TRMM-adjusted
merged-infrared (IR) precipitation and root-mean-square (RMS)
precipitation-error estimates. The algorithm consists of two separate
steps. The first step uses the TRMM VIRS and TMI orbit data (TRMM
products 1B01 and 2A12) and the monthly TMI/TRMM Combined Instrument
(TCI) calibration parameters (from TRMM product 3B31) to produce
monthly IR calibration parameters. The second step uses these derived
monthly IR calibration parameters to adjust the merged-IR
precipitation data, which consists of GMS, GOES-E, GOES-W, Meteosat-7,
Meteosat-5, and NOAA-12 data. The final gridded, adjusted merged-IR
precipitation (mm/hr) and RMS precipitation-error estimates have a
daily temporal resolution and a 0.25-degree by 0.25-degree spatial
resolution. Spatial coverage extends from 50 degrees south to 50
degrees north latitude.
The data are stored in the Hierarchical Data Format (HDF), which
includes both core and product specific metadata. The file size is
about 0.25 MB (compressed).
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Name: TRMM_3B42_V6_3HOURLY
Projections: EPSG:4326
Server: OGC WMS Server