Latitudinal gradient in aerosol properties over the Indian and Southern Oceans during the austral summer
Extensive measurements of columnar aerosol optical depth (AOD), composite (M T ) and black carbon aerosol mass (M B ) concentrations were made over the tropical Indian and Southern Oceans as a part of the Pilot Expedition to the Southern Ocean during the boreal winter. The AOD, M T and M B show larg...
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ftindianacasci:oai:repository.ias.ac.in:69339 2023-05-15T18:24:37+02:00 Latitudinal gradient in aerosol properties over the Indian and Southern Oceans during the austral summer Suresh Babu, S. Krishna Moorthy, K. Satheesh, S. K. 2010-11-25 application/pdf http://repository.ias.ac.in/69339/ http://repository.ias.ac.in/69339/1/69339.pdf http://www.ias.ac.in/currsci/25nov2010/1384.pdf unknown Current Science Association http://repository.ias.ac.in/69339/1/69339.pdf Suresh Babu, S. Krishna Moorthy, K. Satheesh, S. K. (2010) Latitudinal gradient in aerosol properties over the Indian and Southern Oceans during the austral summer Current Science, 99 (10). pp. 1384-1389. ISSN 0011-3891 QE Geology Article PeerReviewed 2010 ftindianacasci 2015-04-10T22:14:44Z Extensive measurements of columnar aerosol optical depth (AOD), composite (M T ) and black carbon aerosol mass (M B ) concentrations were made over the tropical Indian and Southern Oceans as a part of the Pilot Expedition to the Southern Ocean during the boreal winter. The AOD, M T and M B show large latitudinal gradient towards south up to ITCZ. Beyond ITCZ, up to 56°S, AOD and M B show very low and steady values. However MT shows large variations in the Southern Ocean due to the enhanced production of sea salt aerosols associated with high sea surface winds. The short wave aerosol radiative forcing at the surface over north of equator is in the range – 10 to – 23 W m –2 , whereas that over the Southern Ocean was in the range – 4 to – 5 W m –2 . The corresponding atmospheric forcing was in the range of 6–13 W m –2 and 0.8–1.4 W m –2 . This large north–south change in the aerosol radiative forcing has important implications to the meridional circulation and hence to climate. Article in Journal/Newspaper Southern Ocean Indian Academy of Sciences: Publication of Fellows Austral Indian Southern Ocean |
institution |
Open Polar |
collection |
Indian Academy of Sciences: Publication of Fellows |
op_collection_id |
ftindianacasci |
language |
unknown |
topic |
QE Geology |
spellingShingle |
QE Geology Suresh Babu, S. Krishna Moorthy, K. Satheesh, S. K. Latitudinal gradient in aerosol properties over the Indian and Southern Oceans during the austral summer |
topic_facet |
QE Geology |
description |
Extensive measurements of columnar aerosol optical depth (AOD), composite (M T ) and black carbon aerosol mass (M B ) concentrations were made over the tropical Indian and Southern Oceans as a part of the Pilot Expedition to the Southern Ocean during the boreal winter. The AOD, M T and M B show large latitudinal gradient towards south up to ITCZ. Beyond ITCZ, up to 56°S, AOD and M B show very low and steady values. However MT shows large variations in the Southern Ocean due to the enhanced production of sea salt aerosols associated with high sea surface winds. The short wave aerosol radiative forcing at the surface over north of equator is in the range – 10 to – 23 W m –2 , whereas that over the Southern Ocean was in the range – 4 to – 5 W m –2 . The corresponding atmospheric forcing was in the range of 6–13 W m –2 and 0.8–1.4 W m –2 . This large north–south change in the aerosol radiative forcing has important implications to the meridional circulation and hence to climate. |
format |
Article in Journal/Newspaper |
author |
Suresh Babu, S. Krishna Moorthy, K. Satheesh, S. K. |
author_facet |
Suresh Babu, S. Krishna Moorthy, K. Satheesh, S. K. |
author_sort |
Suresh Babu, S. |
title |
Latitudinal gradient in aerosol properties over the Indian and Southern Oceans during the austral summer |
title_short |
Latitudinal gradient in aerosol properties over the Indian and Southern Oceans during the austral summer |
title_full |
Latitudinal gradient in aerosol properties over the Indian and Southern Oceans during the austral summer |
title_fullStr |
Latitudinal gradient in aerosol properties over the Indian and Southern Oceans during the austral summer |
title_full_unstemmed |
Latitudinal gradient in aerosol properties over the Indian and Southern Oceans during the austral summer |
title_sort |
latitudinal gradient in aerosol properties over the indian and southern oceans during the austral summer |
publisher |
Current Science Association |
publishDate |
2010 |
url |
http://repository.ias.ac.in/69339/ http://repository.ias.ac.in/69339/1/69339.pdf http://www.ias.ac.in/currsci/25nov2010/1384.pdf |
geographic |
Austral Indian Southern Ocean |
geographic_facet |
Austral Indian Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
http://repository.ias.ac.in/69339/1/69339.pdf Suresh Babu, S. Krishna Moorthy, K. Satheesh, S. K. (2010) Latitudinal gradient in aerosol properties over the Indian and Southern Oceans during the austral summer Current Science, 99 (10). pp. 1384-1389. ISSN 0011-3891 |
_version_ |
1766205355816124416 |