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

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

Published through the yank Geophysical Union as a part of the Geophysical Monograph Series.

This quantity addresses the speedy decline of Arctic sea ice, putting fresh sea ice decline within the context of earlier observations, weather version simulations and projections, and straightforward versions of the weather sensitivity of sea ice. Highlights of the paintings awarded right here comprise

  • An appraisal of the position performed by means of wind forcing in using the decline;
  • A reconstruction of Arctic sea ice stipulations sooner than human observations, in accordance with proxy facts 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 natural world Service's selection to record the polar endure as a threatened species below the Endangered Species Act;
  • Contrasting reports at the life of a "tipping point," past which Arctic sea ice decline becomes (or has already develop 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 move version, suggesting a good suggestions and the opportunity of temporary weather prediction.

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

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It could also provide an example of the diachronous climate optimum recorded in circum-Arctic regions [cf. , 2004]. The hypothesis of intensified cyclonic circulation and TPD strength during the early Holocene is consistent de Vernal et al. 39 Figure 10. ) and the late Holocene (the last millennium). The sites indicated in bold are those used to illustrate sea ice changes over the last 10,000 years. D. (limits from the National Snow and Ice Data Center (NSIDC) Web page http://nsidc. html). The dashed line corresponds approximately to the maximum extent of sea ice in winter.

2004] de Vernal and Hillaire-Marcel [2006] de Vernal and Hillaire-Marcel [2006] Solignac et al. [2004] de Vernal and Hillaire-Marcel [2006] Solignac et al. [2006] Solignac et al. [2006] Voronina et al. [2001] Hillaire-Marcel et al. [2004] and de Vernal et al. [2005a] de Vernal et al. [2005a] McKay et al. [2008] This study Hamel et al. [2002] Levac et al. [2001] Levac et al. [2001] Bilodeau et al. [1990] and de Vernal and Hillaire-Marcel [2006] This study Simard and de Vernal [1998] Levac [2001] de Vernal and Hillaire-Marcel [2006] de Vernal and Hillaire-Marcel [2000], Peyron and de Vernal [2001], and Solignac et al.

L. Parkinson, H. Koide, and K. Yamamoto (2007), Northern Hemisphere sea ice variability: Lag structure and its implications, Tellus, Ser. x. Walsh, J. , and C. M. Johnson (1979), An analysis of Arctic sea ice fluctuations, 1953–1977, J. Phys. , 9, 580–591. C. Deser and H. O. Box 3000, Boulder, CO 80307, USA. (cdeser@ucar. edu) Reconstructing Sea Ice Conditions in the Arctic and Sub-Arctic Prior to Human Observations Anne de Vernal, Claude Hillaire-Marcel, Sandrine Solignac, and Taoufik Radi GEOTOP, Université du Québec à Montréal, Montreal, Quebec, Canada André Rochon GEOTOP and ISMER, Université du Québec à Rimouski, Rimouski, Quebec, Canada Sea ice is a sensitive parameter characterized by a high variability in space and time that can be reconstructed from paleoclimatological archives.

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