A comparison of Terra and Aqua MODIS true color images on 13 February 2008 (above) shows that thick ice had formed along the nearshore waters of southwestern Lake Michigan; cold arctic air over the region a few days earlier (the daily maximum/minimum temperatures at Chicago O’Hare on 10 February were +1ºF/-4ºF) led... Read More
The previous all-time record for total winter season snowfall in Madison, Wisconsin was 76.1 inches (set in 1978/1979); however, the winter of 2007/2008 decided that would be an easy record to break…and on the morning of 12 February 2008, the old winter season record was finally eclipsed by 1.8 inches of fluffy... Read More
Comparing AWIPS images of the MODIS visible channel, 11.0µm “IR window” channel, 3.7µm “shortwave IR” channel, and 1.6µm near-IR “cirrus channel” (above) showed how certain satellite channels are very useful in the detection of a broad area of aircraft contrails that existed over parts of Illinois, Indiana, and lower Michigan... Read More
The Tungurahua Volcano in Ecuador began to have a series of eruptions during the first 2 weeks of February 2008 (Washington VAAC advisories). A comparison of 4 different GOES-10 Imager and Sounder products (above) shows the Imager 10.5µm “IR window”, the Imager 10.5-12.0µm “split window difference”, the Sounder 11.0-12.0µm “split window difference”,... Read More
