Coupled interactions of the monsoons
A case is made to show that all continental summer monsoon regions of the globe are manifestations of strong, coupled ocean‐land‐atmosphere interactions. It is shown from observations that the auto‐decorrelation time of the daily rainfall in the summer monsoon regions is usually in excess of 3 days....
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| Format: | Article |
| Language: | English |
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Wiley
2008-06-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2008GL033562 |
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| _version_ | 1849733561487196160 |
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| author | Vasubandhu Misra |
| author_facet | Vasubandhu Misra |
| author_sort | Vasubandhu Misra |
| collection | DOAJ |
| description | A case is made to show that all continental summer monsoon regions of the globe are manifestations of strong, coupled ocean‐land‐atmosphere interactions. It is shown from observations that the auto‐decorrelation time of the daily rainfall in the summer monsoon regions is usually in excess of 3 days. This characteristic feature of the monsoon rainfall is well simulated in a global coupled ocean‐land‐atmosphere model. The atmospheric general circulation model component integrations of the same coupled model forced with observed SST show a distinctly shorter auto‐decorrelation time of the daily monsoon precipitation. An obvious conclusion is that air‐sea coupling is essential for this feature of the monsoon rainfall to be simulated. But through additional diagnostic calculations it is also shown that the robust land‐atmosphere interactions over these regions also contribute to the lengthening of the auto‐decorrelation time of the daily continental summer monsoon rainfall. |
| format | Article |
| id | doaj-art-8a35e2c6ee3841388c471046b64267d2 |
| institution | DOAJ |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2008-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-8a35e2c6ee3841388c471046b64267d22025-08-20T03:08:01ZengWileyGeophysical Research Letters0094-82761944-80072008-06-013512n/an/a10.1029/2008GL033562Coupled interactions of the monsoonsVasubandhu Misra0Center for Ocean‐Land‐Atmosphere Studies Calverton Maryland USAA case is made to show that all continental summer monsoon regions of the globe are manifestations of strong, coupled ocean‐land‐atmosphere interactions. It is shown from observations that the auto‐decorrelation time of the daily rainfall in the summer monsoon regions is usually in excess of 3 days. This characteristic feature of the monsoon rainfall is well simulated in a global coupled ocean‐land‐atmosphere model. The atmospheric general circulation model component integrations of the same coupled model forced with observed SST show a distinctly shorter auto‐decorrelation time of the daily monsoon precipitation. An obvious conclusion is that air‐sea coupling is essential for this feature of the monsoon rainfall to be simulated. But through additional diagnostic calculations it is also shown that the robust land‐atmosphere interactions over these regions also contribute to the lengthening of the auto‐decorrelation time of the daily continental summer monsoon rainfall.https://doi.org/10.1029/2008GL033562monsoonsland‐atmosphere interactionsair‐sea interaction |
| spellingShingle | Vasubandhu Misra Coupled interactions of the monsoons Geophysical Research Letters monsoons land‐atmosphere interactions air‐sea interaction |
| title | Coupled interactions of the monsoons |
| title_full | Coupled interactions of the monsoons |
| title_fullStr | Coupled interactions of the monsoons |
| title_full_unstemmed | Coupled interactions of the monsoons |
| title_short | Coupled interactions of the monsoons |
| title_sort | coupled interactions of the monsoons |
| topic | monsoons land‐atmosphere interactions air‐sea interaction |
| url | https://doi.org/10.1029/2008GL033562 |
| work_keys_str_mv | AT vasubandhumisra coupledinteractionsofthemonsoons |