Determining Large Scale Tendency Terms for the Navy Over-Water Local Atmospheric Prediction System (NOWLAPS)
Final rept. 18 Dec 1985-30 Sep 1986
RESEARCH AND DATA SYSTEMS CORP LANHAM-SEABROOK MD
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A manual method for calculating large scale tendency LST terms for the Navy Over-Water local Atmospheric Prediction System NOWLAPS is adapted from an automated, central-site method utilizing forecast fields from the Navy Operational Global Atmospheric Prediction System NOGAPS. This report descrives the design and use of the LST terms, and compares NOWLAPS predictions for an oceanic weather station ship to those of the Navy Operational Local Atmospheric Prediction System NOLAPS and persistence. NOWLAPS, a one-dimensional planetary layer PBLmodel, is designed primarily for shipboard use and was adapted to the Hewlett-Packard 9845 computer under a previous contract. Although it can be run as a single-station PBL forecast model, NOWLAPS can not be a competitive forecast tool until horizontal advection is included or parameterized. Keywords Marine atomospjere models Boundary layer modeling.
- Numerical Mathematics