The New Moon on 18 July means that no visible light reflected from the Moon can illuminate clouds, and the day/night band on the Suomi-NPP satellite can therefore view any clouds only with difficulty. However, it still views city lights, and illuminated roads, or gas field flares, among other things.... Read More

An AWIPS image of Suomi NPP VIIRS 0.7 µm Day/Night Band (DNB) data (above) revealed the bright signature of the Aurora Borealis along the US/Canadian border region at 07:33 UTC (1:33/2:33 AM local time) on 15 July 2012 (NOAA Space Weather... Read More

A comparison of AWIPS images of 375-meter resolution (projected onto a 1-km AWIPS grid) Suomi NPP VIIRS 11.45 µm IR channel data with the corresponding 0.7 µm VIIRS Day/Night Band (above) showed a large Mesocale Convective System (MCS) with an expansive cold cloud shield (exihibiting IR brightness temperatures as cold... Read More

A comparison of AWIPS images of the Suomi NPP VIIRS 0.7 µm Day/Night Band (DNB) with the corresponding 3.74 µm shortwave IR data (above) showed a large arc-shaped layer of dense smoke aloft over much of central South Dakota at 09:21 UTC (4:21 AM local time) on Read More