Blended SEVIRI / LEO MW precipitation
- Coverage: Full SEVIRI disk LAT 60°S - 67.5°N, LON 80°W -
80°E
- Spatial Resolution: MSG-SEVIRI grid
- Timeliness: 15 min
Accuracy |
threshold |
target |
optimal |
RR > 1 mm/24h FSE% = 200% |
RR > 1 mm/24h FSE% = 150% |
RR > 1 mm/24h FSE% = 100% |
Dissemination |
Format
|
Means
|
Type
|
Values in grid points of the Meteosat
projection (NetCDF) |
FTP, EUMETCast |
NRT |
Characteristics and Methods
Instantaneous precipitation maps generated combining geostationary (GEO) IR images from operational geostationary satellites 'calibrated' by precipitation measurements from MW images on Low Earth Orbit (LEO) satellites, processed soon after each acquisition of a new image from GEO. The blending algorithm ('Rapid Update’) generates precipitation estimates combining the equivalent blackbody temperatures (TBB) at 10.8 μm with rain rates from all available Passive MW measurements. A separate treatment is performed for convective precipitation: the morphologic information and the enhancement of precipitation estimate is done by the use of NEFODINA software.
Validation method
Meteorological radar and rain gauge; use of spaceborne precipitation radar (TRMM
and/or GPM) over Africa and Sothern Atlantic