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 large...
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ftiiscindia:oai:eprints.iisc.ernet.in:34913 2023-05-15T18:24:41+02:00 Latitudinal gradient in aerosol properties over the Indian and Southern Oceans during the austral summer Babu, Suresh S Moorthy, Krishna K Satheesh, SK 2010-11-25 application/pdf http://eprints.iisc.ernet.in/34913/ http://eprints.iisc.ernet.in/34913/1/Aerosol.pdf http://www.ias.ac.in/currsci/ unknown Indian Academy of Sciences http://eprints.iisc.ernet.in/34913/1/Aerosol.pdf Babu, Suresh S and Moorthy, Krishna K and Satheesh, SK (2010) Latitudinal gradient in aerosol properties over the Indian and Southern Oceans during the austral summer. In: Current Science (Bangalore), 99 (10). pp. 1384-1389. Centre for Atmospheric & Oceanic Sciences Journal Article PeerReviewed 2010 ftiiscindia 2014-09-27T18:01:06Z 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 degrees S, AOD and M-B show very low and steady values. However M-T 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 Institute of Science, Bangalore: ePrints@IIsc Austral Indian Southern Ocean |
institution |
Open Polar |
collection |
Indian Institute of Science, Bangalore: ePrints@IIsc |
op_collection_id |
ftiiscindia |
language |
unknown |
topic |
Centre for Atmospheric & Oceanic Sciences |
spellingShingle |
Centre for Atmospheric & Oceanic Sciences Babu, Suresh S Moorthy, Krishna K Satheesh, SK Latitudinal gradient in aerosol properties over the Indian and Southern Oceans during the austral summer |
topic_facet |
Centre for Atmospheric & Oceanic Sciences |
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 degrees S, AOD and M-B show very low and steady values. However M-T 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 |
Babu, Suresh S Moorthy, Krishna K Satheesh, SK |
author_facet |
Babu, Suresh S Moorthy, Krishna K Satheesh, SK |
author_sort |
Babu, Suresh 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 |
Indian Academy of Sciences |
publishDate |
2010 |
url |
http://eprints.iisc.ernet.in/34913/ http://eprints.iisc.ernet.in/34913/1/Aerosol.pdf http://www.ias.ac.in/currsci/ |
geographic |
Austral Indian Southern Ocean |
geographic_facet |
Austral Indian Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
http://eprints.iisc.ernet.in/34913/1/Aerosol.pdf Babu, Suresh S and Moorthy, Krishna K and Satheesh, SK (2010) Latitudinal gradient in aerosol properties over the Indian and Southern Oceans during the austral summer. In: Current Science (Bangalore), 99 (10). pp. 1384-1389. |
_version_ |
1766205491305775104 |