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

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

ISBN-10: 0875904459

ISBN-13: 9780875904450

ISBN-10: 111866647X

ISBN-13: 9781118666470

Published by way of 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 previous observations, weather version simulations and projections, and easy versions of the weather sensitivity of sea ice. Highlights of the paintings offered the following contain

  • An appraisal of the position performed via wind forcing in riding the decline;
  • A reconstruction of Arctic sea ice stipulations sooner than human observations, in accordance with proxy information from sediments;
  • A modeling strategy 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 checklist the polar endure as a threatened species lower than the Endangered Species Act;
  • Contrasting reports at the life of a "tipping point," past which Arctic sea ice decline turns into (or has already develop into) irreversible, together with an exam of the function of the small ice cap instability in worldwide warming simulations;
  • A major summertime atmospheric reaction to sea ice relief in an atmospheric basic flow version, suggesting a favorable suggestions and the potential of momentary weather prediction.

The ebook should be of curiosity to researchers trying to comprehend the hot habit of Arctic sea ice, version projections of destiny sea ice loss, and the results of sea ice loss for the ordinary and human structures of the Arctic.

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Additional resources for Arctic Sea Ice Decline: Observations, Projections, Mechanisms, and Implications

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1029/2004GL021752. Perovich, D. , B. Light, H. Eicken, K. F. Jones, K. Runciman, and S. V. Nghiem (2007), Increasing solar heating of the Arctic Ocean and adjacent seas, 1979–2005: Attribution and role in the ice-albedo feedback, Geophys. Res. 1029/2007GL031480. Polyakov, I. , et al. (2003), Long-term ice variability in Arctic marginal seas, J. , 16, 2078–2085. Polyakov, I. , U. S. Bhatt, R. Colony, D. Walsh, G. V. Alekseev, R. V. Bekryaev, V. P. Karklin, A. V. Yulin, and M. A. Johnson (2005), One more step toward a warmer Arctic, Geophys.

2001; Darby and Bischof, 2004]. , 2004]. , 2004], whereas the intensified export of sea ice through Fram Strait would allow comparison with the Arctic dipole anomaly [cf. , 2006]. 6. CONCLUSION Sea ice is a parameter in the climate system that is characterized by a high variability at all timescales and which has complex dynamics since it depends upon air temperature, salinity, and depth of the upper water layer and stratification and turbulence in the water column in addition to atmo­ spheric circulation and wind strength.

In the northern Barents Sea, dinocyst assemblages also yield underestimated sea ice cover values, but the assemblages south of the maximum sea ice limit provide overestimations. Such anomalies might reflect a more southward spread of sea ice in winter, and a reduced summer sea ice cover in the northern area of the eastern Barents Sea, during the previous centuries. If the above interpretation of the residuals is correct, the mean state of sea ice cover at secular scales could have been more zonal in the Nordic seas and with a less pronounced west to east gradient than at present.

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


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