A physical mechanism for north Atlantic SST influence on the Indian summer monsoon
(AMO) and multidecadal variability of the Indian summer monsoon rainfall is unraveled and a long sought physical mechanism linking Atlantic climate and monsoon has been identified. The AMO produces persistent weakening (strengthening) of the meridional gradient of tropospheric temperature (TT) by se...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.501.2909 2023-05-15T17:27:35+02:00 A physical mechanism for north Atlantic SST influence on the Indian summer monsoon B. N. Goswami M. S. Madhusoodanan C. P. Neema D. Sengupta The Pennsylvania State University CiteSeerX Archives 2006 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.501.2909 http://www.tropmet.res.in/~bng/bngpaper/bng_etal_GRL_2005.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.501.2909 http://www.tropmet.res.in/~bng/bngpaper/bng_etal_GRL_2005.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.tropmet.res.in/~bng/bngpaper/bng_etal_GRL_2005.pdf text 2006 ftciteseerx 2016-01-08T09:08:46Z (AMO) and multidecadal variability of the Indian summer monsoon rainfall is unraveled and a long sought physical mechanism linking Atlantic climate and monsoon has been identified. The AMO produces persistent weakening (strengthening) of the meridional gradient of tropospheric temperature (TT) by setting up negative (positive) TT anomaly over Eurasia during northern late summer/ autumn resulting in early (late) withdrawal of the south west monsoon and persistent decrease (increase) of seasonal monsoon rainfall. On inter–annual time scales, strong North Atlantic Oscillation (NAO) or North Annular mode (NAM) influences the monsoon by producing similar TT anomaly over Eurasia. The AMO achieves the interdecadal modulation of the monsoon by modulating the frequency of occurrence of strong NAO/ NAM events. This mechanism also provides a basis for explaining the observed teleconnection between North Atlantic temperature and the Asian monsoon in Text North Atlantic North Atlantic oscillation Unknown Indian |
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Open Polar |
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ftciteseerx |
language |
English |
description |
(AMO) and multidecadal variability of the Indian summer monsoon rainfall is unraveled and a long sought physical mechanism linking Atlantic climate and monsoon has been identified. The AMO produces persistent weakening (strengthening) of the meridional gradient of tropospheric temperature (TT) by setting up negative (positive) TT anomaly over Eurasia during northern late summer/ autumn resulting in early (late) withdrawal of the south west monsoon and persistent decrease (increase) of seasonal monsoon rainfall. On inter–annual time scales, strong North Atlantic Oscillation (NAO) or North Annular mode (NAM) influences the monsoon by producing similar TT anomaly over Eurasia. The AMO achieves the interdecadal modulation of the monsoon by modulating the frequency of occurrence of strong NAO/ NAM events. This mechanism also provides a basis for explaining the observed teleconnection between North Atlantic temperature and the Asian monsoon in |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
B. N. Goswami M. S. Madhusoodanan C. P. Neema D. Sengupta |
spellingShingle |
B. N. Goswami M. S. Madhusoodanan C. P. Neema D. Sengupta A physical mechanism for north Atlantic SST influence on the Indian summer monsoon |
author_facet |
B. N. Goswami M. S. Madhusoodanan C. P. Neema D. Sengupta |
author_sort |
B. N. Goswami |
title |
A physical mechanism for north Atlantic SST influence on the Indian summer monsoon |
title_short |
A physical mechanism for north Atlantic SST influence on the Indian summer monsoon |
title_full |
A physical mechanism for north Atlantic SST influence on the Indian summer monsoon |
title_fullStr |
A physical mechanism for north Atlantic SST influence on the Indian summer monsoon |
title_full_unstemmed |
A physical mechanism for north Atlantic SST influence on the Indian summer monsoon |
title_sort |
physical mechanism for north atlantic sst influence on the indian summer monsoon |
publishDate |
2006 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.501.2909 http://www.tropmet.res.in/~bng/bngpaper/bng_etal_GRL_2005.pdf |
geographic |
Indian |
geographic_facet |
Indian |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
http://www.tropmet.res.in/~bng/bngpaper/bng_etal_GRL_2005.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.501.2909 http://www.tropmet.res.in/~bng/bngpaper/bng_etal_GRL_2005.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766119759412199424 |