Teleconnection between Australian winter temperature and Indian summer monsoon rainfall
The large-scale circulation over the Indian Ocean during the boreal summer raises the question of whether atmospheric conditions in Australia could influence conditions over the Indian subcontinent, despite the long passage of air over the Indian Ocean. Using a combination of reanalysis, satellite a...
| Main Authors: | , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2013
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/104589 http://hdl.handle.net/10220/9074 |
| _version_ | 1811690830897872896 |
|---|---|
| author | Lee, Soo-Ying Koh, Tieh Yong |
| author2 | School of Physical and Mathematical Sciences |
| author_facet | School of Physical and Mathematical Sciences Lee, Soo-Ying Koh, Tieh Yong |
| author_sort | Lee, Soo-Ying |
| collection | NTU |
| description | The large-scale circulation over the Indian Ocean during the boreal summer raises the question of whether atmospheric conditions in Australia could influence conditions over the Indian subcontinent, despite the long passage of air over the Indian Ocean. Using a combination of reanalysis, satellite and in situ data, we argue that unusually low temperature over inland Australia during austral winter can enhance evaporation rate over the eastern tropical Indian Ocean, and hence enhance rainfall over western India after 10–18 days. Since extreme winter temperature in Australia is often associated with cold-air outbreaks, the above mechanism can be an example of how southern hemispheric mid-latitude weather can influence northern hemispheric monsoon rainfall. |
| first_indexed | 2024-10-01T06:10:14Z |
| format | Journal Article |
| id | ntu-10356/104589 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:10:14Z |
| publishDate | 2013 |
| record_format | dspace |
| spelling | ntu-10356/1045892020-09-26T21:32:42Z Teleconnection between Australian winter temperature and Indian summer monsoon rainfall Lee, Soo-Ying Koh, Tieh Yong School of Physical and Mathematical Sciences Earth Observatory of Singapore DRNTU::Science::Physics::Meteorology and climatology The large-scale circulation over the Indian Ocean during the boreal summer raises the question of whether atmospheric conditions in Australia could influence conditions over the Indian subcontinent, despite the long passage of air over the Indian Ocean. Using a combination of reanalysis, satellite and in situ data, we argue that unusually low temperature over inland Australia during austral winter can enhance evaporation rate over the eastern tropical Indian Ocean, and hence enhance rainfall over western India after 10–18 days. Since extreme winter temperature in Australia is often associated with cold-air outbreaks, the above mechanism can be an example of how southern hemispheric mid-latitude weather can influence northern hemispheric monsoon rainfall. Published version 2013-02-01T01:40:27Z 2019-12-06T21:35:48Z 2013-02-01T01:40:27Z 2019-12-06T21:35:48Z 2011 2011 Journal Article Lee, S. Y., & Koh, T. Y. (2011). Teleconnection between Australian winter temperature and Indian summer monsoon rainfall. Atmospheric Chemistry and Physics Discussions, 11(9), 26415-26440. 1680-7375 https://hdl.handle.net/10356/104589 http://hdl.handle.net/10220/9074 10.5194/acpd-11-26415-2011 en Atmospheric chemistry and physics discussions © 2011 The Author(s). application/pdf |
| spellingShingle | DRNTU::Science::Physics::Meteorology and climatology Lee, Soo-Ying Koh, Tieh Yong Teleconnection between Australian winter temperature and Indian summer monsoon rainfall |
| title | Teleconnection between Australian winter temperature and Indian summer monsoon rainfall |
| title_full | Teleconnection between Australian winter temperature and Indian summer monsoon rainfall |
| title_fullStr | Teleconnection between Australian winter temperature and Indian summer monsoon rainfall |
| title_full_unstemmed | Teleconnection between Australian winter temperature and Indian summer monsoon rainfall |
| title_short | Teleconnection between Australian winter temperature and Indian summer monsoon rainfall |
| title_sort | teleconnection between australian winter temperature and indian summer monsoon rainfall |
| topic | DRNTU::Science::Physics::Meteorology and climatology |
| url | https://hdl.handle.net/10356/104589 http://hdl.handle.net/10220/9074 |
| work_keys_str_mv | AT leesooying teleconnectionbetweenaustralianwintertemperatureandindiansummermonsoonrainfall AT kohtiehyong teleconnectionbetweenaustralianwintertemperatureandindiansummermonsoonrainfall |