Physically-Based High Resolution Surface Wind and Temperature Analysis for EPAMS.
MISSION RESEARCH CORP SANTA BARBARA CALIF
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This report documents the theoretical basis, development, and computational structure of a numerical computer analysis routine incorporated in the US Army Experimental Prototype Automatic Meteorological System EPAMS for the estimation of surface layer wind fields at sub-mesoscale resolution approx. 100 meters over a limited area in broken topography. The geographically re-locatable analysis exploits detailed topographic information but requires only limited meteorological information. The physically-based analysis uses Gauss Principle of Least Constraints for a variational adjustment of an initial estimated wind field in a single surface layer to conform with terrain structure, mass conservation, and buoyancy forces. Fields of surface air temperature are also produced. Initial meteorological input is obtained from the EPAMS data base by an automated analysis which is described in detail. The segmentation structure of the computational program levels is presented. Appendices provide user instructions, detailed algorithms, and example wind field estimates. Author
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