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The Variability of the Wet Season Ov...

Brennan, Alice S.,

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The Variability of the Wet Season Over Southeast Asia /

Record Type:	Electronic resources : Monograph/item
Title/Author:	The Variability of the Wet Season Over Southeast Asia // Alice S Brennan.
Author:	Brennan, Alice S.,
Description:	1 electronic resource (40 pages)
Notes:	Source: Masters Abstracts International, Volume: 86-03.
Contained By:	Masters Abstracts International86-03.
Subject:	Meteorology. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30814271
ISBN:	9798384057697

The Variability of the Wet Season Over Southeast Asia /
Brennan, Alice S.,

The Variability of the Wet Season Over Southeast Asia /Alice S Brennan. - 1 electronic resource (40 pages)

Source: Masters Abstracts International, Volume: 86-03.

The Southeast Asian (SEA) region experiences a rainy season during boreal spring and summer, which the SEA population relies on for agricultural and economic development. This study uses an objective definition for the onset and demise date for the seasonal evolution of the rainy season over the SEA region. The onset and demise dates are defined as the first and last date of the year when the daily rain rate reaches a maximum and minimum cumulative anomaly of the mean climatological rainfall rate, respectively. This gives rise to a varying length of the season that has a significant impact on the estimate of the seasonal rainfall and its anomaly over the rainy season. It is observed that the interannual variability of the seasonal rainfall of the rainy season is significantly affected by the variations of the onset and demise dates. However, the influence of the onset and demise date appears to be independent of each other. Using the Integrated Multi-Satellite Retrievals for Global Precipitation Mission version 6 (IMERG) rainfall analysis available on 0.1°x0.1°grid we have analyzed the variations of the rainy season over SEA. We generate an ensemble of 101 members per season in the 22-year time period by slightly perturbing the original time series to account for uncertainties in the observed rainfall analyses. This also ensures that the diagnoses of the onset/demise dates are not sensitive to sporadic synoptic/mesoscale rain events that may be unconnected to the seasonal evolution of rainfall in SEA. Using this ensemble of 101 members per season, we find that we can provide a reliable probabilistic outlook of the forthcoming rainy season over the SEA region based on the variations of the onset date of the wet season. This is possible because of the strong intrinsic relationship of earlier or later onset seasons of the SEA rainy season associated with a longer and wetter season, or a shorter and drier season, respectively.

English

ISBN: 9798384057697Subjects--Topical Terms:

542822
Meteorology.
Subjects--Index Terms:

Economic development

The Variability of the Wet Season Over Southeast Asia /
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245 1 0 $a The Variability of the Wet Season Over Southeast Asia / $c Alice S Brennan.
264 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2024
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500 $a Source: Masters Abstracts International, Volume: 86-03.
500 $a Advisors: Misra, Vasubandhu Committee members: Diamond, Michael; Bourassa, Mark.
502 $b M.S. $c The Florida State University $d 2024.
520 $a The Southeast Asian (SEA) region experiences a rainy season during boreal spring and summer, which the SEA population relies on for agricultural and economic development. This study uses an objective definition for the onset and demise date for the seasonal evolution of the rainy season over the SEA region. The onset and demise dates are defined as the first and last date of the year when the daily rain rate reaches a maximum and minimum cumulative anomaly of the mean climatological rainfall rate, respectively. This gives rise to a varying length of the season that has a significant impact on the estimate of the seasonal rainfall and its anomaly over the rainy season. It is observed that the interannual variability of the seasonal rainfall of the rainy season is significantly affected by the variations of the onset and demise dates. However, the influence of the onset and demise date appears to be independent of each other. Using the Integrated Multi-Satellite Retrievals for Global Precipitation Mission version 6 (IMERG) rainfall analysis available on 0.1°x0.1°grid we have analyzed the variations of the rainy season over SEA. We generate an ensemble of 101 members per season in the 22-year time period by slightly perturbing the original time series to account for uncertainties in the observed rainfall analyses. This also ensures that the diagnoses of the onset/demise dates are not sensitive to sporadic synoptic/mesoscale rain events that may be unconnected to the seasonal evolution of rainfall in SEA. Using this ensemble of 101 members per season, we find that we can provide a reliable probabilistic outlook of the forthcoming rainy season over the SEA region based on the variations of the onset date of the wet season. This is possible because of the strong intrinsic relationship of earlier or later onset seasons of the SEA rainy season associated with a longer and wetter season, or a shorter and drier season, respectively.
546 $a English
590 $a School code: 0071
650 4 $a Meteorology. $3 542822
650 4 $a Climate change. $2 bicssc $3 2079509
653 $a Economic development
653 $a Boreal spring
653 $a Summer
653 $a Agricultural development
653 $a Rainfall analysis
690 $a 0557
690 $a 0404
710 2 $a The Florida State University. $b Meteorology. $e degree granting institution. $3 3815234
720 1 $a Misra, Vasubandhu $e degree supervisor.
773 0 $t Masters Abstracts International $g 86-03.
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791 $a M.S.
792 $a 2024
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