Sea ice characteristics between the

Sea ice characteristics between the middle Weddell Sea and the Prydz Bay, Antarctica during the austral summer of 2003

The antarctic sea ice was investigated upon five occasions between January 4 and February 15, 2003. The investigations included: (1)estimation of sea ice distribution by ship-based observations between the middle Weddell Sea and the Prydz Bay; (2) estimation of sea ice distribution by aerial photography in the Prydz Bay; (3) direct measurements of fast ice thickness and snow cover, as well as ice core sampling in Nella Fjord; (4) estimation of melting sea ice distribution near the Zhongshan Station; and (5) observation of sea ice early freeze near the Zhongshan Station. On average, sea ice covered 14.4% of the study area. The highest sea ice concentration (80%)was observed in the Weddell Sea. First-year ice was dominant (99.7%～99.8%). Sea ice distributions in the Prydz Bay were more variable due to complex inshore topography, proximity of the Larsemann Hills, and/or grounded icebergs. The average thickness of landfast ice in Nella Fjord was 169.5 cm. Wind-blown snow redistribution plays an important role in affecting the ice thickness in Nella Fjord. Preliminary freezing of sea ice near the Zhongshan Station follows the first two phases of the pancake cycle.

作 者： TANG Shulin KANG Jiancheng ZHOU Shangzhe LI Zhijun   作者單位： TANG Shulin,KANG Jiancheng(Key Laboratory of Western China's Environmental Systems of Ministry of Education, Lanzhou University, Lanzhou,730000, China;Geography Department, Shanghai Normal University, Shanghai, 200234, China)

ZHOU Shangzhe(Key Laboratory of Western China's Environmental Systems of Ministry of Education, Lanzhou University, Lanzhou ,730000, China;South China Normal University, Guangzhou, 510000, China)

LI Zhijun(State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian ,116024, China) 

刊 名： 海洋學報（英文版）  SCI 英文刊名： ACTA OCEANOLOGICA SINICA  年，卷(期)： 2005 24(2)  分類號：   關鍵詞： Antarctica   sea ice   characteristics  

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