Winter surface pressure anomalies over Eurasia and Indian summer monsoon
In this study, the spatial relationships between the monthly mean sea level pressure (MSLP) anomalies and Indian summer monsoon rainfall (ISMR) have been examined using the gridded MSLP data (GMSLP2) for 46 years (1949-1994). Winter MSLP anomalies over NW Europe (south Europe) are negatively (positi...
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2002
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ftindianacasci:oai:repository.ias.ac.in:84001 2023-05-15T17:32:09+02:00 Winter surface pressure anomalies over Eurasia and Indian summer monsoon Rajeevan, M. 2002-05-08 http://repository.ias.ac.in/84001/ http://www.agu.org/pubs/crossref/2002/2001GL014363.shtml unknown American Geophysical Union Rajeevan, M. (2002) Winter surface pressure anomalies over Eurasia and Indian summer monsoon Geophysical Research Letters, 29 . 1454_1-1454_4. ISSN 0094-8276 QE Geology Article PeerReviewed 2002 ftindianacasci 2013-01-20T13:20:08Z In this study, the spatial relationships between the monthly mean sea level pressure (MSLP) anomalies and Indian summer monsoon rainfall (ISMR) have been examined using the gridded MSLP data (GMSLP2) for 46 years (1949-1994). Winter MSLP anomalies over NW Europe (south Europe) are negatively (positively) correlated with ISMR. During the strong (deficient) monsoon years, there is enhanced (weakened) poleward pressure gradient over Eurasia. The Europe pressure gradient index, which is an indicator of the winter poleward pressure gradient, is significantly and positively correlated with ISMR. This relationship also suggests a link between the North Atlantic Oscillation and ISMR on inter-annual time scale. The winter pressure gradient over Eurasia has physical linkage with Indian summer monsoon rainfall, through winter snow cover anomalies and springtime mid latitude activities like upper tropospheric blocking highs and stationary wave anomalies. Article in Journal/Newspaper North Atlantic North Atlantic oscillation Indian Academy of Sciences: Publication of Fellows Indian |
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Open Polar |
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Indian Academy of Sciences: Publication of Fellows |
op_collection_id |
ftindianacasci |
language |
unknown |
topic |
QE Geology |
spellingShingle |
QE Geology Rajeevan, M. Winter surface pressure anomalies over Eurasia and Indian summer monsoon |
topic_facet |
QE Geology |
description |
In this study, the spatial relationships between the monthly mean sea level pressure (MSLP) anomalies and Indian summer monsoon rainfall (ISMR) have been examined using the gridded MSLP data (GMSLP2) for 46 years (1949-1994). Winter MSLP anomalies over NW Europe (south Europe) are negatively (positively) correlated with ISMR. During the strong (deficient) monsoon years, there is enhanced (weakened) poleward pressure gradient over Eurasia. The Europe pressure gradient index, which is an indicator of the winter poleward pressure gradient, is significantly and positively correlated with ISMR. This relationship also suggests a link between the North Atlantic Oscillation and ISMR on inter-annual time scale. The winter pressure gradient over Eurasia has physical linkage with Indian summer monsoon rainfall, through winter snow cover anomalies and springtime mid latitude activities like upper tropospheric blocking highs and stationary wave anomalies. |
format |
Article in Journal/Newspaper |
author |
Rajeevan, M. |
author_facet |
Rajeevan, M. |
author_sort |
Rajeevan, M. |
title |
Winter surface pressure anomalies over Eurasia and Indian summer monsoon |
title_short |
Winter surface pressure anomalies over Eurasia and Indian summer monsoon |
title_full |
Winter surface pressure anomalies over Eurasia and Indian summer monsoon |
title_fullStr |
Winter surface pressure anomalies over Eurasia and Indian summer monsoon |
title_full_unstemmed |
Winter surface pressure anomalies over Eurasia and Indian summer monsoon |
title_sort |
winter surface pressure anomalies over eurasia and indian summer monsoon |
publisher |
American Geophysical Union |
publishDate |
2002 |
url |
http://repository.ias.ac.in/84001/ http://www.agu.org/pubs/crossref/2002/2001GL014363.shtml |
geographic |
Indian |
geographic_facet |
Indian |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
Rajeevan, M. (2002) Winter surface pressure anomalies over Eurasia and Indian summer monsoon Geophysical Research Letters, 29 . 1454_1-1454_4. ISSN 0094-8276 |
_version_ |
1766130135107371008 |