Fog Detection and Analysis with Satellite Data
(last updated 8/3/2005)
This Web-based training session is a "stand-alone" version of the VISIT Teletraining session by Gary Ellrod of NESDIS. Talking points to each slide are included, and it is best viewed with the any version of Internet Explorer or versions of Netscape prior to version 6.The objective of this session is to better understand and use techniques for detecting and analyzing fog and low clouds using data from GOES and other satellites. The lesson emphasizes nighttime detection by means of a bi-spectral (11-3.9 mm) IR image product, but also addresses daytime techniques using visible, near-Infrared, and shortwave IR channels. Experimental products such as fog depth and low cloud base height are discussed, along with additional satellite products useful in predicting fog formation. Some of this information is also included in the DLAC 1, Lesson 2D module, Applying Diagnostic and Forecast Tools.
