Download Arctic Sea Ice Decline: Observations, Projections, by Eric T. DeWeaver, Cecilia M. Bitz, L.-Bruno Tremblay PDF

By Eric T. DeWeaver, Cecilia M. Bitz, L.-Bruno Tremblay

Published by way of the yankee Geophysical Union as a part of the Geophysical Monograph Series.

This quantity addresses the swift decline of Arctic sea ice, putting contemporary sea ice decline within the context of earlier observations, weather version simulations and projections, and easy types of the weather sensitivity of sea ice. Highlights of the paintings awarded the following contain

  • An appraisal of the function performed via wind forcing in riding the decline;
  • A reconstruction of Arctic sea ice stipulations ahead of human observations, in keeping with proxy info from sediments;
  • A modeling procedure for assessing the impression of sea ice decline on polar bears, used as enter to the U.S. Fish and flora and fauna Service's choice to record the polar undergo as a threatened species below the Endangered Species Act;
  • Contrasting reviews at the life of a "tipping point," past which Arctic sea ice decline becomes (or has already turn into) irreversible, together with an exam of the function of the small ice cap instability in international warming simulations;
  • A major summertime atmospheric reaction to sea ice aid in an atmospheric common flow version, suggesting a good suggestions and the opportunity of temporary weather prediction.

The publication should be of curiosity to researchers trying to comprehend the new habit of Arctic sea ice, version projections of destiny sea ice loss, and the results of sea ice loss for the traditional and human platforms of the Arctic.


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Extra info for Arctic Sea Ice Decline: Observations, Projections, Mechanisms, and Implications

Sample text

2006]. It cannot be at- tributed to dilution with fresh water and lowering of salinity because of ecological characteristics of N. 5 [Hilbrecht, 1996]). It is, rather, attributed to brine extrusion occurring Figure 7. 13, p. 452]). Past records of sea ice extent in northwest North Atlantic are available from the accounts of voyages by Irish monk-explorers and by Vikings who established settlements in Iceland and in southwest Greenland at the end of the first millennium. , sea ice was reported to occur exceptionally.

However, as pointed out by Jones and Mann [2004], the LIA documented from historical or proxy data is far from a synchronous and uniform climate event over the Northern Hemisphere, and some discrepancies may be expected. Nonetheless, although sea ice records of the last millennium are still rare, the few data available indicate important secular changes in sea ice margins with some diachronous responses of sea ice extent from one region to another. 4. ISOTOPIC (d18O) COMPOSITION OF MESOPELAGIC FORAMINIFER SHELLS: A PROXY FOR SEA ICE ACCRETION RATES?

2007), Near zero replenishment of the Arctic multiyear sea ice cover at the end of 2005 summer, Geophys. Res. 1029/2006GL028737. Lindsay, R. , and J. , J. , 18, 4879–4895. , S. Drobot, C. Fowler, W. Emery, and R. Barry (2007), On the Arctic climate paradox and the continuing role of atmospheric circulation in affecting sea ice conditions, Geophys. Res. 1029/2006GL028269. Meier, W. , J. Stroeve, and F. : A clear signal of decline regionally, seasonally and extending beyond the satellite record, Ann.

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