Interpretation of recent trends in Antarctic sea ice concentration

Yu, Lejiang; Zhang, Zhanhai; Zhou, Mingyu; Zhong, Shiyuan; Lenschow, Donald H.; Gao, Zhiqiu; Wu, Huiding; Li, Na; Sun, Bo

doi:doi:10.1117/1.3643691

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Journal of Applied Remote Sensing / Volume 5 / Research Papers

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Interpretation of recent trends in Antarctic sea ice concentration

J. Appl. Remote Sens. 5, 053557 (Sep 29, 2011); http://dx.doi.org/10.1117/1.3643691

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Abstract

References (14)

Lejiang Yu

Nanjing University of Information Science & Technology, Applied Hydrometeorological Research Institute, Nanjing 210044, China

Zhanhai Zhang, Mingyu Zhou, Huiding Wu, Na Li, Bo Sun,

Polar Research Institute of China, 451 Jinqiao Road, Shanghai 200136, China

Shiyuan Zhong

Michigan State University, East Lansing, Michigan 48824

Donald H. Lenschow

National Center for Atmospheric Research, Boulder, Colorado 80305

Zhiqiu Gao

Chinese Academy of Sciences, Institute of Atmospheric Physics, Beijing 100029, China

We investigate seasonal trends in sea ice concentration and the relative contributions of the Antarctic Oscillation (AAO), the Pacific-South American two modes (PSA1 and PSA2), and the El Niño-Southern Oscillation (ENSO). The summer range of the trend in the Antarctic sea ice is the largest, from −83.8% to 59.6% per 29 yr over the period of 1979 through 2007, while the autumn range is the least, from −49.7% to 39.6% per 29 yr for the period of 1979 through 2007. In autumn, among the four indices the largest contribution to the trend in sea ice is the AAO; in winter the ENSO and the PSA1 are better than the other two indices; during spring and summer a change of more than 15% per 29 yr is associated with PSA1. No matter the season, the spatial pattern of the residual trend is similar to that of the total trend; moreover, the combined trends of the four indices only explains less than one-third of the total trend.

History

Received Mar 25, 2010
Accepted Sep 07, 2011
Revised Jun 10, 2011
Published online Sep 29, 2011

Digital Object Identifier

http://dx.doi.org/10.1117/1.3643691

Citation

Lejiang Yu, Zhanhai Zhang, Mingyu Zhou, Shiyuan Zhong, Donald H. Lenschow, Zhiqiu Gao, Huiding Wu, Na Li and Bo Sun, "Interpretation of recent trends in Antarctic sea ice concentration", J. Appl. Remote Sens. 5, 053557 (Sep 29, 2011); http://dx.doi.org/10.1117/1.3643691