Fiscal Year 1995
FSL in Review
Aviation Gridded Forecast System Branch
Review Division Page
||Division Personnel||Review Homepage|
The Aviation Gridded Forecast System (AGFS) Branch manages the generation and distribution of high-resolution aviation-impact variables (AIVs) and the development of graphics tools required to tailor products for aviation decisionmakers. Air traffic controllers and traffic flow managers will be able to use AIVs such as icing, turbulence, cloud ceilings, and visibility to support safety and efficiency in the national airspace system. Since most AIVs are not a direct output of numerical weather prediction models, they are calculated from state-of-the-atmosphere variables (SAVs) such as temperature and moisture using a translation process.
The meteorological workstation at the Denver CWSU is used to define products and functions that will support CWSUs during the AGFS era. CWSU forecasters use these products in their role as partners in air traffic control and traffic management decisionmaking. To assist FSL developers in understanding the needs of aviation forecasters, a meteorologist within the branch has been trained and certified in CWSU operations.
In close collaboration with the AWC staff, preliminary AIV editing tools have been developed so that NWS forecasters can add value to AIVs for icing potential. (Figure 25 shows a screen from the AIV editor of a three-dimensional distribution of icing potential for 1200 UTC 10 April 1995.) Forecasters can use these tools to interactively change the threshold values of an icing algorithm-generated AIV. Up-to-the-minute pilot reports of icing observations and satellite data of cloud patterns are used to facilitate the editing process.
Maintained by: Wilfred von Dauster