Effects of the northeast monsoon on the equatorial westerlies over Indonesia
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Authors
Chen, Chih-Lyeu
Subjects
Winter monsoon surge
ITCZ
cross equatorial flow
XEF
WAT
ITCZ
cross equatorial flow
XEF
WAT
Advisors
Peng, M.S.
Date of Issue
1990-06
Date
June 1990
Publisher
Monterey, California. Naval Postgraduate School
Language
en_US
Abstract
The possible cross equatorial influences of the Northern Hemisphere on the zonal wind along 10 deg S in the Indonesia-Arafura Sea region are studied by using a 14-year data set. Composites of time series of individual circulation parameters and surface flow charts reveal a correlation between the northeastern monsoon of the Northern Hemisphere and the Southern Hemisphere summer monsoon. The correlation is significantly stronger during the middle season compared to late season. During the late season distinct patterns of changes are found in the Australian monsoon trough and upper tropospheric flow. This reflects a stronger connection between summer monsoon and midlatitude baroclinic systems within the Southern Hemisphere. Thus the mid-season events of the southern monsoon wind strengthening are more influenced by surges in the northeast monsoon in the Northern Hemisphere; while the late-season events may be due to midlatitude baroclinic effects in the Southern Hemisphere rather than the northern cold surges.
Type
Thesis
Description
Series/Report No
Department
Meteorology and Oceanography
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funding
Format
vii, 56 p. ; ill.
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Approved for public release; distribution is unlimited.
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.