Tasman Sea biological response to dust storm events during the austral spring of 2009
Article
Article Title | Tasman Sea biological response to dust storm events during the austral spring of 2009 |
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ERA Journal ID | 3285 |
Article Category | Article |
Authors | Gabric, A. J. (Author), Cropp, R. (Author), McTainsh, G. (Author), Butler, H. (Author), Johnson, B. M. (Author), O'Loingsigh, T. (Author) and van Tran, Dien (Author) |
Journal Title | Marine and Freshwater Research |
Journal Citation | 67 (8), pp. 1090-1102 |
Number of Pages | 13 |
Year | 2016 |
Place of Publication | Australia |
ISSN | 0067-1940 |
1323-1650 | |
1448-6059 | |
Digital Object Identifier (DOI) | https://doi.org/10.1071/MF14321 |
Web Address (URL) | http://www.publish.csiro.au/paper/MF14321.htm |
Abstract | During the austral spring of 2009 several significant dust storms occurred in SE Australia including the Red Dawn event in late September. Estimates of 2.5 Mt total suspended particulate sediment lost off the Australian coast for the 3000 km long dust plume, make it the largest off-continent loss of soil ever reported. Much of this material was transported over the coastline of New South Wales and adjacent Tasman Sea. Previous satellite-based analyses of the biological response of Tasman Sea waters to dust-derived nutrients are equivocal or have observed no response. Satellite-derived surface chlorophyll concentrations in the southern Tasman during this period are well above the climatological mean, with positive anomalies as high as 0.5mgm-3. Dust transport simulations indicate strong deposition to the ocean surface, which during the Red Dawn event was enhanced by heavy precipitation from an intense low pressure system. Cloud processing of the dust aerosol may have enhanced iron bioavailability for phytoplankton uptake. |
Keywords | Australia, iron, nutrient, phytoplankton |
ANZSRC Field of Research 2020 | 410402. Environmental assessment and monitoring |
370803. Physical oceanography | |
Public Notes | The accessible file is the accepted version of the paper. Please refer to the URL for the published version. |
Byline Affiliations | Griffith University |
School of Agricultural, Computational and Environmental Sciences | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q2z16/tasman-sea-biological-response-to-dust-storm-events-during-the-austral-spring-of-2009
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