Final technical report of Grant ATM 83-15175 "tropical and monsoonal studies"
By: by Chih-Pei Chang, and Roger T. Williams
Contributors: Williams, Roger T.; Naval Postgraduate School (U.S.). Dept. of Meteorology
Publisher: Naval Postgraduate School; Available from National Technical Information Service
Published: 1988
Place of publication: Monterey, Calif; Springfield, Va
Language: eng
Number of pages: 169
Subjects: MONSOONS; WIND
Other titles: NPS-63-88-001.
Description: This project studies a variety pf large-scale motions in the tropics and subtropics particularly      those associated with the Asian monsoon circulations. It consists of four parts -- (1)      theoretical studies of planetary scale motion forced by tropical heating: The effects of vertical      shear, vertical differential damping and planetary boundary layer were found to influence the      forcing of midlatitude motions by tropical heat sources. In addition, the vertical interaction of      simple modes may be responsible for the maintenance of the eastward propagating 30-50 day      oscillations; (2) Observational studies of planetary scale motions: The day-to-day variation of      the East Asian Jet was found to correlate positively with that of the tropical divergent flow      south of it, suggesting the importance of tropical forcing through the local Hadley cell. The      transient forcing of time-mean planetary scale circulation was also studied using a nine-year      data set; (3) Theoretical studies of zonal asymmetry: Several differences between parallel flow      and non-parallel flow instabilities in terms of spatial and time growth rates were found using the      two-scale technique; (4) Studies of the Mei-Yu system of the East Asian summer monsoon: A      numerical experiment suggested that the Low-Level Jet Associated with Mei-Yu fronts      receives energy through an equatorward, convection-driven secondary circulation which is      quite different from the cross-frontal circulation associated with dry fronts.
Notes: Title from cover.

"NPS-63-88-001."

"January 1988."

"Final report for period June 1984 - November 1987."

AD A123 317.

Includes bibliographical references.

NSF-ATM83-15175

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