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Author
Pantina, P
Title
Characterizing the Variability of the Indian Monsoon: Changes in Evaporative Sources for Summertime Rainfall Events
Type
$loc['typeManuscript']
Year
2010
Publication
Abbreviated Journal
Volume
Issue
Pages
Keywords
Variability, Trajectories, India, Monsoon, Evaporative Source, Moisture Source
Abstract
This study focuses on the interannual and intraseasonal variability of evaporative sources for rainfall events during the Indian monsoon. The monsoon is an important part of the economy and lifestyle in India, thus, any improvements in our understanding of its mechanisms would be directly beneficial to society. We first discuss the use of evaporative sources for rainfall events as an important tool to help increase our knowledge of the variations of the monsoon. We then outline the variability of the monsoon on an interannual (wet and dry years) and intraseasonal (active and break periods) time scale. We use three reanalyses (NCEP-R2, CFSR, and MERRA) and an IMD gridded rainfall dataset to trace the location and strength of evaporative sources via a quasi-isentropic back trajectory program. The program uses reanalysis winds and evaporation, among other parameters, to estimate these sources back in time. We discuss the differences in parameters between the datasets on a seasonal, interannual, and intraseasonal time scale. We then thoroughly investigate the strength and location of evaporative sources between datasets on interannual and intraseasonal time scales, and we attempt to explain the variations by analyzing the differences in the input parameters and circulation mechanisms themselves. The study finds that the evaporative sources for given interannual or intraseasonal rainfall events do vary in strength and location. Interannually, the strongest change in evaporative source occurs over central India and the Arabian Sea, suggesting that the overall monsoon flow contributes moisture for Indian rainfall on this time scale. Intraseasonally, the strongest change in evaporative source occurs over the Bay of Bengal, suggesting that low pressure systems contribute moisture for Indian rainfall on this time scale. All three reanalyses yield similar fields of evaporative source. We conclude that accurate prediction of the Indian monsoon requires improved understanding of both interannual and intraseasonal oscillations since the sources of moisture for these events are unique.
Address
Department of Earth Ocean and Atmospheric Science
Corporate Author
Thesis
$loc['Master's thesis']
Publisher
Florida State University
Place of Publication
Tallahassee, FL
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
577
Permanent link to this record
Author
Qian, C. ; Fu, C. ; Wu, Z. ; Yan, Z.
Title
The role of changes in the annual cycle in earlier onset of climatic spring in northern China
Type
$loc['typeJournal Article']
Year
2011
Publication
Advances in Atmospheric Sciences
Abbreviated Journal
Adv. Atmos. Sci.
Volume
28
Issue
2
Pages
284-296
Keywords
spring onset ; Ensemble Empirical Mode Decomposition ; modulated annual cycle ; Asian winter monsoon ; global warming
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0256-1530
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
309
Permanent link to this record
Author
Yatagai, A. ; Krishnamurti, T.N. ; Kumar, V. ; Mishra, A.K. ; Simon, A.
Title
Use of APHRODITE Rain Gauge-Based Precipitation and TRMM 3B43 Products for Improving Asian Monsoon Seasonal Precipitation Forecasts by the Superensemble Method
Type
$loc['typeJournal Article']
Year
2014
Publication
Journal of Climate
Abbreviated Journal
J. Climate
Volume
27
Issue
3
Pages
1062-1069
Keywords
Monsoons ; Precipitation ; Databases ; Superensembles ; Climate prediction ; Statistical forecasting
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0894-8755
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
171
Permanent link to this record
Author
Zheng, Y. ; Zhang, R. ; Bourassa, M.A.
Title
Impact of East Asian Winter and Australian Summer Monsoons on the Enhanced Surface Westerlies over the Western Tropical Pacific Ocean Preceding the El Niño Onset
Type
$loc['typeJournal Article']
Year
2014
Publication
Journal of Climate
Abbreviated Journal
J. Climate
Volume
27
Issue
5
Pages
1928-1944
Keywords
Atmospheric circulation ; Forcing ; Dynamics ; Monsoons ; Wind
Abstract
Address
Corporate Author
Thesis
Publisher
Place of Publication
Editor
Language
Summary Language
Original Title
Series Editor
Series Title
Abbreviated Series Title
Series Volume
Series Issue
Edition
ISSN
0894-8755
ISBN
Medium
Area
Expedition
Conference
Funding
Approved
$loc['no']
Call Number
COAPS @ mfield @
Serial
155
Permanent link to this record