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Control Number257214
Date and Time of Latest Transaction20141223090001.AM
General Information141223s |||||||||b ||00|||
Cataloging SourcePAGASA-DOST
Main Entry - Corporate NameNIAGAS, DOST- PAGASA
Title StatementSome experiments in short-range numerical weather prediction in the tropical pacific
Physical Description122p. illus., figures
Summary, Etc.A multi-level semi-implicit primitive equation model for regional numerical weather prediction in the Tropical Pacific is presented. Energy sources and sinks are not included in the formulation as it is contended that they are of secondary importance in the short-range forecasting of large synoptic-scale motions in the Tropics. Four methods of computing the streamfunctions from the observed wind field are discussed and evaluated. The streamfunctions resulting from two of these methods and the corresponding sets of initially balanced geopotential fields obtained through the solution of the reverse balance equation are used in the experimental integrations of the model. Two types of lateral boundary conditions are tested in the experiments. In both experiments, inertia-gravitational oscillations are controlled without explicit or implicit smoothing of the variables at the boundaries. Moderately successful 24-and 48-hr wind forecasts are obtained from the two experiments with the model. Finally, the same initial data are used in the integration of the model described by Krishnamurti et al. (1972) which includes the parameterization of cumulus convection and other "physical processses" in the formulation. The resulting 24-and 48-hr wind forecasts are comparable to the results of the previous two experiments
Subject Added Entry - Topical Termnumerical weather prediction -- short-range numerical weather prediction -- 1974 -- Quezon City
 Meteorology
LocationDOST PAGASA SERIALS technical reportcab PAG-07-4425 1 Complimentary 0000-00-00
  
     
 
Physical Location
Department of Science and Technology
Philippine Atmospheric, Geophysical and Astronomical Services Administration
  
     
 
Digital Copy
Not Available
  
     
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