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Sea ice extent, concentration, and seasonality [in “State of the Climate in 2019']


Reid, P and Stammerjohn, S and Massom, RA and Barreira, S and Scambos, T and Lieser, JL, Sea ice extent, concentration, and seasonality [in 'State of the Climate in 2019'], Bulletin of the American Meteorological Society, 101, (8) pp. S304-S306. ISSN 0003-0007 (2020) [Refereed Article]


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DOI: doi:10.1175/BAMS-D-20-0090.1


Antarctic sea ice plays a pivotal role in the global climate system. Forming a highly reflective, dynamic, and insulative blanket that varies seasonally in its areal coverage from ~3 × 106 km2 to ~19–20 × 106 km2, sea ice and its snow cover strongly modifies ocean–atmosphere fluxes and interaction processes (Bourassa et al. 2013). Moreover, brine rejection into the underlying ocean during sea ice formation on some continental shelf areas leads to the formation of Antarctic Bottom Water that contributes to the global ocean overturning circulation (Johnson 2008). Antarctic sea ice also acts as a protective buffer for ice shelves against destructive ocean swells (Massom et al. 2018) and modulates the interaction of warm ocean waters with ice shelf basal cavities to affect basal melt there (Timmermann and Hellmer 2013). Finally, it also forms a key habitat for a myriad of biota—ranging from microorganisms to whales (Thomas 2017)—that are strongly affected by changes in the presence and seasonal rhythms of the sea ice cover (e.g., Massom and Stammerjohn 2010).

Item Details

Item Type:Refereed Article
Keywords:Antarctic sea ice, concentration, extent, variability
Research Division:Earth Sciences
Research Group:Physical geography and environmental geoscience
Research Field:Glaciology
Objective Division:Environmental Policy, Climate Change and Natural Hazards
Objective Group:Understanding climate change
Objective Field:Effects of climate change on Antarctic and sub-Antarctic environments (excl. social impacts)
UTAS Author:Reid, P (Dr Phillip Reid)
UTAS Author:Massom, RA (Dr Robert Massom)
UTAS Author:Lieser, JL (Dr Jan Lieser)
ID Code:140557
Year Published:2020
Deposited By:CRC-Antarctic Climate & Ecosystems
Deposited On:2020-08-27
Last Modified:2021-02-11
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