Strikingly contrasting Indian monsoon progressions during 2013 and 2014: role of Western Tibetan Plateau and the South China Sea
This study presents some new perspectives on the progression of the Indian summer monsoon (June through September) during two contrasting summer seasons of 2013 and 2014. Monsoon 2013 witnessed above normal rainfall (105% of long period June-September average rainfall); on the other hand, 2014 exper...
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| Veröffentlicht in: | Theoretical and applied climatology 2021-05, Vol.144 (3-4), p.1131-1140 |
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| description | This study presents some new perspectives on the progression of the Indian summer monsoon (June through September) during two contrasting summer seasons of 2013 and 2014. Monsoon 2013 witnessed above normal rainfall (105% of long period June-September average rainfall); on the other hand, 2014 experienced a severe drought (87% average rainfall). Furthermore, the south to north progression of monsoon 2013 was very rapid, but very slow during monsoon 2014. The disparity of monsoon progressions during the contrasting monsoons is demonstrated through the interaction between the vertical thermal contrast (VTC) of the upper troposphere over the western Tibetan Plateau (TP) and the South China Sea (SCS): a new dynamic perspective. This new perspective suggests interactions of the large-scale circulation anomalies driven by the thermal wind relation, which causes contrasts in the progression of the Indian monsoon. While during 2013 the SCS provided substantial moisture flux towards the Indian subcontinent, the year 2014 witnessed comparatively very few moisture flux incursions towards the Indian subcontinent. This highlights the role of the SCS in driving the differences during the contrasting monsoons. The role of VTC gradient (i.e., the difference in the VTC between the SCS and the western TP) is further demonstrated using a newly developed methodology, which exhibits causal relations of the VTC gradient between the two aforementioned regions with longwave flux (LWF) at the top of the atmosphere. |
| doi_str_mv | 10.1007/s00704-021-03590-4 |
| format | Article |
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This new perspective suggests interactions of the large-scale circulation anomalies driven by the thermal wind relation, which causes contrasts in the progression of the Indian monsoon. While during 2013 the SCS provided substantial moisture flux towards the Indian subcontinent, the year 2014 witnessed comparatively very few moisture flux incursions towards the Indian subcontinent. This highlights the role of the SCS in driving the differences during the contrasting monsoons. The role of VTC gradient (i.e., the difference in the VTC between the SCS and the western TP) is further demonstrated using a newly developed methodology, which exhibits causal relations of the VTC gradient between the two aforementioned regions with longwave flux (LWF) at the top of the atmosphere.</description><identifier>ISSN: 0177-798X</identifier><identifier>EISSN: 1434-4483</identifier><identifier>DOI: 10.1007/s00704-021-03590-4</identifier><language>eng</language><publisher>Vienna: Springer Vienna</publisher><subject>Anomalies ; Aquatic Pollution ; Atmospheric Protection/Air Quality Control/Air Pollution ; Atmospheric Sciences ; Circulation anomalies ; Climate science ; Climatology ; Drought ; Droughts ; Earth and Environmental Science ; Earth Sciences ; Fluctuations ; Flux ; Moisture ; Moisture flux ; Monsoons ; Original Paper ; Progressions ; Rain ; Rain and rainfall ; Rainfall ; Summer ; Summer monsoon ; Thermal winds ; Troposphere ; Upper troposphere ; Waste Water Technology ; Water Management ; Water Pollution Control ; Wind ; Winds</subject><ispartof>Theoretical and applied climatology, 2021-05, Vol.144 (3-4), p.1131-1140</ispartof><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2021</rights><rights>COPYRIGHT 2021 Springer</rights><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2021.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c392t-f172404be5fdd01edda0851b1b67d26ad37dd0abcb4e9933118ef971917e812a3</citedby><cites>FETCH-LOGICAL-c392t-f172404be5fdd01edda0851b1b67d26ad37dd0abcb4e9933118ef971917e812a3</cites><orcidid>0000-0002-4572-1376</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00704-021-03590-4$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00704-021-03590-4$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27923,27924,41487,42556,51318</link.rule.ids></links><search><creatorcontrib>Vaid, B. 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The disparity of monsoon progressions during the contrasting monsoons is demonstrated through the interaction between the vertical thermal contrast (VTC) of the upper troposphere over the western Tibetan Plateau (TP) and the South China Sea (SCS): a new dynamic perspective. This new perspective suggests interactions of the large-scale circulation anomalies driven by the thermal wind relation, which causes contrasts in the progression of the Indian monsoon. While during 2013 the SCS provided substantial moisture flux towards the Indian subcontinent, the year 2014 witnessed comparatively very few moisture flux incursions towards the Indian subcontinent. This highlights the role of the SCS in driving the differences during the contrasting monsoons. 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H.</au><au>Kripalani, R. H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Strikingly contrasting Indian monsoon progressions during 2013 and 2014: role of Western Tibetan Plateau and the South China Sea</atitle><jtitle>Theoretical and applied climatology</jtitle><stitle>Theor Appl Climatol</stitle><date>2021-05-01</date><risdate>2021</risdate><volume>144</volume><issue>3-4</issue><spage>1131</spage><epage>1140</epage><pages>1131-1140</pages><issn>0177-798X</issn><eissn>1434-4483</eissn><abstract>This study presents some new perspectives on the progression of the Indian summer monsoon (June through September) during two contrasting summer seasons of 2013 and 2014. Monsoon 2013 witnessed above normal rainfall (105% of long period June-September average rainfall); on the other hand, 2014 experienced a severe drought (87% average rainfall). Furthermore, the south to north progression of monsoon 2013 was very rapid, but very slow during monsoon 2014. The disparity of monsoon progressions during the contrasting monsoons is demonstrated through the interaction between the vertical thermal contrast (VTC) of the upper troposphere over the western Tibetan Plateau (TP) and the South China Sea (SCS): a new dynamic perspective. This new perspective suggests interactions of the large-scale circulation anomalies driven by the thermal wind relation, which causes contrasts in the progression of the Indian monsoon. While during 2013 the SCS provided substantial moisture flux towards the Indian subcontinent, the year 2014 witnessed comparatively very few moisture flux incursions towards the Indian subcontinent. This highlights the role of the SCS in driving the differences during the contrasting monsoons. 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| ispartof | Theoretical and applied climatology, 2021-05, Vol.144 (3-4), p.1131-1140 |
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| subjects | Anomalies Aquatic Pollution Atmospheric Protection/Air Quality Control/Air Pollution Atmospheric Sciences Circulation anomalies Climate science Climatology Drought Droughts Earth and Environmental Science Earth Sciences Fluctuations Flux Moisture Moisture flux Monsoons Original Paper Progressions Rain Rain and rainfall Rainfall Summer Summer monsoon Thermal winds Troposphere Upper troposphere Waste Water Technology Water Management Water Pollution Control Wind Winds |
| title | Strikingly contrasting Indian monsoon progressions during 2013 and 2014: role of Western Tibetan Plateau and the South China Sea |
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