Organic carbon in Antarctic snow: spatial trends and possible sources
DRS at CSIR-National Institute of Oceanography
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Title |
Organic carbon in Antarctic snow: spatial trends and possible sources
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Creator |
Antony, R.
Mahalinganathan, K. Thamban, M. Nair, S. |
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Subject |
organic carbon
snow spatial variations microorganisms |
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Description |
Organic carbon records in Antarctic snow are sparse despite the fact that it is of great significance to global carbon dynamics, snow photochemistry, and air–snow exchange processes. Here, surface snow total organic carbon (TOC) along with sea-salt Na sup(+), dust, and microbial load of two geographically distinct traverses in East Antarctica are presented, viz. Princess Elizabeth Land (PEL, coast to 180 km inland, Indian Ocean sector) and Dronning Maud Land (DML, 110–300 km inland, Atlantic Ocean sector). TOC ranged from 88 + or -4 to 928 + or -21 mu g L sup(-1) in PEL and 13 + or -1 to 345 + or -6 mu g L sup(-1) in DML. TOC exhibited considerable spatial variation with significantly higher values in the coastal samples (p0.1). Both distance from the sea and elevation influenced TOC concentrations. TOC also showed a strong positive correlation with sea-salt Na sup(+) (p
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Date |
2012-01-03T04:56:34Z
2012-01-03T04:56:34Z 2011 |
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Type |
Journal Article
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Identifier |
Environmental Science & Technology, vol.45; 2011; 9944–9950
http://drs.nio.org/drs/handle/2264/3984 |
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Language |
en
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Rights |
© 2011 American Chemical Society
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Publisher |
American Chemical Society
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