Worldview Image of the Week

Tropical Storm Barry over Louisiana and Mississippi

Base image captured on 14 July 2019, by the VIIRS instrument, aboard the joint NASA/NOAA Suomi NPP satellite.

Tropical Storm Barry on the 14 July 2019 (Suomi-NPP/VIIRS and IMERG)

Image showing Tropical Storm Barry over Louisiana and Mississippi, USA. The base true-color image was acquired on 14 July 2019 by the Visible Infrared Imaging Radiometer Suite (VIIRS) instrument, aboard the joint NASA/NOAA Suomi-National Polar-orbiting Partnership (Suomi NPP) satellite. Overlaid in the true-color image is the IMERG Rain Rate layer showing the rainfall rates with reds to blacks showing high rates of rainfall. The Integrated Multi-satellitE Retrievals for GPM (Global Precipitation Measurement) (IMERG) unified U.S. algorithm that provides the Day-1 multi-satellite precipitation product. The input precipitation estimates computed from the various satellite passive microwave sensors in the GPM constellation are intercalibrated to the GPM Combined Instrument product (because it is presumed to be the best snapshot GPM estimate), then "morphed" and combined with microwave precipitation-calibrated geo-IR fields, and adjusted with monthly surface precipitation gauge analysis data (where available) to provide half-hourly and monthly precipitation estimates on a 10-km grid over the domain 60 degrees N-S. Precipitation phase is diagnosed using analyses of surface temperature, humidity, and pressure.

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