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NASA uses IMERG to estimate Hurricane Harvey’s Rainfall amount

 

Written by Rob Gutro / Steve Lang
NASA’s Goddard Space Flight Center

NASA - National Aeronautics and Space AdministrationGreenbelt, MD – At NASA’s Goddard Space Flight Center in Greenbelt, Maryland, an analysis of Hurricane Harvey’s tremendous rainfall was created using eight days of satellite data.

NASA’s Integrated Multi-satellitE Retrievals for GPM or IMERG product is used to make estimates of precipitation from a combination of space-borne passive microwave sensors, including the GMI microwave sensor onboard the Global Precipitation Measurement satellite GPM core satellite, and geostationary IR (infrared) data.

GPM saw Harvey's rainfall pattern was highly asymmetric with the bulk of the rain located north and east of the center on Aug. 27. A broad area of moderate rain (green areas) can be seen stretching from near Galveston Bay to north of Houston and back well to the west. Within this are embedded areas of heavy rain (red areas); the peak estimated rain rate from GPM at the time of this overpass was 96 mm/hour (~3.77 inches per hour). (NASA/JAXA, Hal Pierce)

GPM saw Harvey’s rainfall pattern was highly asymmetric with the bulk of the rain located north and east of the center on Aug. 27. A broad area of moderate rain (green areas) can be seen stretching from near Galveston Bay to north of Houston and back well to the west. Within this are embedded areas of heavy rain (red areas); the peak estimated rain rate from GPM at the time of this overpass was 96 mm/hour (~3.77 inches per hour). (NASA/JAXA, Hal Pierce)

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