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- Seymour W. Laxon
- Centre for Polar Observation and Modelling, Department of Earth Sciences University College London London UK
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- Katharine A. Giles
- Centre for Polar Observation and Modelling, Department of Earth Sciences University College London London UK
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- Andy L. Ridout
- Centre for Polar Observation and Modelling, Department of Earth Sciences University College London London UK
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- Duncan J. Wingham
- Centre for Polar Observation and Modelling, Department of Earth Sciences University College London London UK
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- Rosemary Willatt
- Centre for Polar Observation and Modelling, Department of Earth Sciences University College London London UK
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- Robert Cullen
- European Space Agency, EOP‐PY, ESTEC Noordwijk Netherlands
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- Ron Kwok
- Jet Propulsion Laboratory California Institute of Technology Pasadena California USA
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- Axel Schweiger
- Polar Science Center, Applied Physics Laboratory University of Washington Seattle Washington USA
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- Jinlun Zhang
- Polar Science Center, Applied Physics Laboratory University of Washington Seattle Washington USA
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- Christian Haas
- Department of Earth and Space Science and Engineering York University Toronto Canada
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- Stefan Hendricks
- Alfred Wegener Institute for Polar and Marine Research Bremerhaven Germany
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- Richard Krishfield
- Woods Hole Oceanographic Institution Woods Hole Massachusetts USA
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- Nathan Kurtz
- School of Computer, Math, and Natural Sciences Morgan State University Baltimore Maryland USA
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- Sinead Farrell
- Earth System Science Interdisciplinary Center University of Maryland College Park Maryland USA
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- Malcolm Davidson
- European Space Agency, EOP‐PY, ESTEC Noordwijk Netherlands
説明
<jats:p>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<jats:sup>3</jats:sup> and the winter volume by 1479 km<jats:sup>3</jats:sup>. This exceeds the decline in ice volume in the central Arctic from the PIOMAS model of 2644 km<jats:sup>3</jats:sup> in the autumn, but is less than the 2091 km<jats:sup>3</jats:sup> in winter, between the two time periods.</jats:p>
収録刊行物
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- Geophysical Research Letters
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Geophysical Research Letters 40 (4), 732-737, 2013-02-28
American Geophysical Union (AGU)
