CryoSat-2 estimates of Arctic sea ice thickness and volume

被引:600
|
作者
Laxon, Seymour W. [1 ]
Giles, Katharine A. [1 ]
Ridout, Andy L. [1 ]
Wingham, Duncan J. [1 ]
Willatt, Rosemary [1 ]
Cullen, Robert [2 ]
Kwok, Ron [3 ]
Schweiger, Axel [4 ]
Zhang, Jinlun [4 ]
Haas, Christian [5 ]
Hendricks, Stefan [6 ]
Krishfield, Richard [7 ]
Kurtz, Nathan [8 ]
Farrell, Sinead [9 ]
Davidson, Malcolm [2 ]
机构
[1] UCL, Ctr Polar Observat & Modelling, Dept Earth Sci, London WC1E 6BT, England
[2] European Space Agcy, EOP PY, Estec, Noordwijk, Netherlands
[3] CALTECH, Jet Prop Lab, Pasadena, CA USA
[4] Univ Washington, Appl Phys Lab, Polar Sci Ctr, Seattle, WA 98105 USA
[5] York Univ, Dept Earth & Space Sci & Engn, Toronto, ON M3J 2R7, Canada
[6] Alfred Wegener Inst Polar & Marine Res, Bremerhaven, Germany
[7] Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA
[8] Morgan State Univ, Sch Comp Math & Nat Sci, Baltimore, MD 21239 USA
[9] Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20742 USA
基金
英国自然环境研究理事会; 美国国家科学基金会;
关键词
Altimetry; CryoSat; Sea Ice; Volume;
D O I
10.1002/grl.50193
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
Satellite records show a decline in ice extent over more than three decades, with a record minimum in September 2012. Results from the Pan-Arctic Ice-Ocean Modelling and Assimilation system (PIOMAS) suggest that the decline in extent has been accompanied by a decline in volume, but this has not been confirmed by data. Using new data from the European Space Agency CryoSat-2 (CS-2) mission, validated with in situ data, we generate estimates of ice volume for the winters of 2010/11 and 2011/12. We compare these data with current estimates from PIOMAS and earlier (2003-8) estimates from the National Aeronautics and Space Administration ICESat mission. Between the ICESat and CryoSat-2 periods, the autumn volume declined by 4291 km(3) and the winter volume by 1479 km(3). This exceeds the decline in ice volume in the central Arctic from the PIOMAS model of 2644 km(3) in the autumn, but is less than the 2091 km(3) in winter, between the two time periods. Citation: Laxon S. W., K. A. Giles, A. L. Ridout, D. J. Wingham, R. Willatt, R. Cullen, R. Kwok, A. Schweiger, J. Zhang, C. Haas, S. Hendricks, R. Krishfield, N. Kurtz, S. Farrell and M. Davidson (2013), CryoSat-2 estimates of Arctic sea ice thickness and volume, Geophys. Res. Lett., 40, 732-737, doi:10.1002/grl.50193.
引用
收藏
页码:732 / 737
页数:6
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