Monday, 10 February 2003
Operational satellite-derived tropospheric winds for DoD models and applications
Feature Tracked Winds (FTWinds), derived by tracking cloud and water vapor motions from geostationary satellite imagery, have proven to be an important source of data for the U.S. Department of Defense (DoD) global weather prediction model, the Navy Operational Global Atmospheric Prediction System (NOGAPS). The Navy and Air Force also run high-resolution regional forecast models for remote areas of interest to DoD, where in-situ data may be absent and FTWinds become a particularly important data type. In addition, the Navy and Air Force jointly forecast for tropical cyclones over vast regions of the oceans, and FTWinds are an important source of observations for these operations. Because of the diverse and global scope of these responsibilities, a robust FTWinds processing algorithm commensurate with currently utilized algorithms at other data processing centers (e.g., NESDIS) is highly desirable for DoD. Therefore, the Navy and Air Force have teamed with the Cooperative Institute for Meteorological Satellite Studies (CIMSS) at the University of Wisconsin to transition state-of-the-art FTWinds software into the DoD operational processing environment. This paper will describe the operational software system, and demonstrate some uses of the data for DoD weather forecasting.