Areas of low cloudiness (such as stratus and/or fog) at night can be important aviation hazards, but they are sometimes difficult to identify simply by examining standard IR imagery. A comparison of 1-km resolution MODIS 11.0 µm and 4-km resolution GOES-12 10.7 µm “IR window” images (above) does not give... Read More
The Kasatochi Volcano (located in the Aleutian Islands of Alaska) experienced a series of eruptions on 07-08 August 2008. A comparison of visible channel images from the MTSAT-1R and GOES-11 satellites (above) shows the initial sequence of volcanic plumes from 2 very... Read More
AWIPS images of the GOES 10.7 µm IR channel (above) showed the development of severe thunderstorms across parts of Colorado, Wyoming, Nebraska, and Kansas on 22 May 2008 (see also: CIRA RAMMB Satellite Case Study). According to the SPC storm reports, a number of tornadoes were produced by these storms (one tornado-related fatality was reported near Greely, Colorado),... Read More
Chile is one of the most volcanically active countries on Earth. The latest volcano to erupt is Chaiten, which had previously lain dormant for at least 1000 years. Chaiten is at approximately 42 degrees South latitude, 72 degrees west longitude, close to Golfo de Ancud. A series of eruptions, starting... Read More
