Extended Abstract (184K)P7.4
Improvements to the GOES-12 Imager Cloud Product
James A. Jung, CIMSS/Univ. of Wisconsin, Camp Springs, MD; and A. J. Schreiner, W. F. Feltz, S. M. Thomas, T. J. Schmit, and J. Daniels
The latest series of Geostationary Operational Environmental Satellites (GOES) Imagers includes a CO2 band centered at 13.3 µm. With this new band, the Imagers are able to calculate cloud height or cloud top pressure and the effective cloud amount by using the CO2 absorption technique. Recent changes that have improved the cloud product quality include; a technique to interpolate the cloud top pressure between fixed forward model levels, a brightness temperature bias correction and an improved method for determining calculated radiances. In order to validate these changes, comparisons of coincident GOES-12 Imager "cloud retrievals" to the DOE ARM CART site in Lamont, OK and CO2 derived cloud drift winds with rawinsondes will be made.
Since the GOES-12 Imager cloud-top product covers a larger geographical region than the GOES Sounder cloud product and provides more timely information, a wide range of users may find this product beneficial. This includes: aviation weather, forecasters (possibly within the Interactive Forecast Preparation System), numerical weather prediction (for analysis or validations) and possibly the VAAC (Volcanic Ash Advisory Center).
Poster Session 7, Retrievals and Cloud Products: Part 1
Thursday, 23 September 2004, 9:30 AM-11:00 AM
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