Numerical simulation of the forcing of monsoon surges by mid-latitude baroclinic waves
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Authors
Baker, Beverley J.
Subjects
Numerical weather prediction
Winter monsoon
Monsoon surge
Topographic effects
Baroclinic instability
Winter monsoon
Monsoon surge
Topographic effects
Baroclinic instability
Advisors
Williams, Roger T.
Date of Issue
1983-09
Date
September 1983
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
A global, six-level, primitive equation model was numerically integrated to examine the interaction of a mid-latitude baroclinic wave with several different mountain-valley configurations. The purpose was to determine the contribution of a well-developed baroclinic wave to the initiation of a monsoon surge. It was found that these waves can initiate a surge. Such surges are weak and limited in extent but they do exhibit the characteristics of observed monsoon surges. The latitudinal location of the east-west mountain range has a large impact on the strength of the disturbance and thus on the initiation of the surge. However, the size of the valley is not an important consideration. The surge is strongest at the lowest levels and dissipates rapidly with height. Overall results indicate surge forcing by the baroclinic wave is possible but other forcing mechanisms are necessary in order to simulate the stronger, more extensive surges observed during the winter monsoon.
Type
Thesis
Description
Series/Report No
Department
Department of Meteorology
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.