Rainfall Intensities of Extreme Precipitation Events
Abstract
Effort of evaluating very high-resolution precipitation products (instantaneous, 5 km) from satellite observation during extreme precipitation events is presented. The rainfall rate fields are based on the TRMM spaceborne radar observations. These fields are compared to those based on the new NOAA Next Generation QPE high- resolution national mosaic product (Q2, instantaneous, 1 km). For this study we have adjusted the Q2 instantaneous radar products to the gauges. Among the TRMM overpasses, two occurred during the time Tropical Storm Fay was crossing central Florida (22-23 Aug 2008). This allowed us to compare the satellite estimates not only to the Q2 products but also to the NASA TRMM ground validation radar products available for central Florida, which are also adjusted to rain gauge measurements. Other extreme events that are addressed include Hurricanes (Humberto, Gustav, Ike) and tornadic thunderstorms (e.g., the Feb. 6, 2008 deadliest tornado outbreak associated with 84 tornadoes; and the May 11, 2008 tornadic thunderstorms in which a tornado was reported at the exact time of the TRMM overpass directly at nadir).
- Publication:
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AGU Spring Meeting Abstracts
- Pub Date:
- May 2009
- Bibcode:
- 2009AGUSM.H14B..05A
- Keywords:
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- 1817 Extreme events;
- 1853 Precipitation-radar;
- 1854 Precipitation (3354);
- 1855 Remote sensing (1640);
- 3354 Precipitation (1854)