A comparison of MODIS true color and false color RGB images (above) reveals multiple narrow streaks of snow cover across parts of the Northern Plains on 18 February 2008. The white snow streaks show up well against the surrounding brown bare ground regions in central South Dakota and Nebraska on the true... Read More
AWIPS images of the MODIS visible and “snow/ice” channels from 13 December 2007 (above; closer view) reveal that much of the southeastern half of Iowa received a significant glazing of ice (0.25 to 1.0 inch) during a freezing drizzle/freezing rain event on 10-11 December. Snow and ice particles are very strong absorbers at the 1.6 µm wavelength of the... Read More
GOES-10 IR imagery with QuikSCAT winds (above) sourced from the CIMSS Tropical Cyclones site showed that the maximum surface winds associated with Subtropical Storm Olga were located well to the north of the center of the circulation early in the day on 11 December 2007. However, ASCAT wind data later in the... Read More
A comparison of the MODIS “true color” RGB image (Red=channel 01, Green=channel 04, Blue=channel 03) and the corresponding “false color” RGB image (Red=channel 02, Green=channel 07, Blue=channel 07) from 19 November 2007 (above) shows snow cover over parts of New York, Vermont, New Hampshire, and Maine (extending northward into portions of southern... Read More
