Arctic sea ice surface ponds due to saltwater impurities
نویسندگان
چکیده
منابع مشابه
The refreezing of melt ponds on Arctic sea ice
The presence of melt ponds on the surface of Arctic sea ice significantly reduces its albedo, inducing a positive feedback leading to sea ice thinning. While the role of melt ponds in enhancing the summer melt of sea ice is well known, their impact on suppressing winter freezing of sea ice has, hitherto, received less attention. Melt ponds freeze by forming an ice lid at the upper surface, whic...
متن کاملImpact of melt ponds on Arctic sea ice simulations from 1990 to 2007
[1] The extent and thickness of the Arctic sea ice cover has decreased dramatically in the past few decades with minima in sea ice extent in September 2007 and 2011 and climate models did not predict this decline. One of the processes poorly represented in sea ice models is the formation and evolution of melt ponds. Melt ponds form on Arctic sea ice during the melting season and their presence ...
متن کاملArctic sea ice reconstructions
Can we reconstruct Arctic sea ice back to 1900 with a hybrid approach? S. Brönnimann, T. Lehmann, T. Griesser, T. Ewen, A. N. Grant, and R. Bleisch Institute for Atmospheric and Climate Science, ETH Zürich, Switzerland Received: 14 July 2008 – Accepted: 14 July 2008 – Published: 19 August 2008 Correspondence to: S. Brönnimann ([email protected]) Published by Copernicus Publications on beh...
متن کاملHas Arctic Sea Ice Loss Contributed to Increased Surface Melting of the Greenland Ice Sheet?
In recent decades, the Greenland ice sheet has experienced increased surface melt. However, the underlying cause of this increased surface melting and how it relates to cryospheric changes across the Arctic remain unclear. Here it is shown that an important contributing factor is the decreasingArctic sea ice. Reduced summer sea ice favors stronger and more frequent occurrences of blocking-high ...
متن کاملDiazotroph Diversity in the Sea Ice, Melt Ponds, and Surface Waters of the Eurasian Basin of the Central Arctic Ocean
The Eurasian basin of the Central Arctic Ocean is nitrogen limited, but little is known about the presence and role of nitrogen-fixing bacteria. Recent studies have indicated the occurrence of diazotrophs in Arctic coastal waters potentially of riverine origin. Here, we investigated the presence of diazotrophs in ice and surface waters of the Central Arctic Ocean in the summer of 2012. We ident...
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ژورنال
عنوان ژورنال: Eos, Transactions American Geophysical Union
سال: 2012
ISSN: 0096-3941
DOI: 10.1029/2012eo100014