The signature analysis of summer Antarctic sea-ice distribution by ship-based sea-ice observation  

作　　者：ShuLin Tang 1,Ning Li 1,AnNan Jiang 2,XingRu Zhou 1 1.China Railway 21st Bureau Group CO.,LTD,Lanzhou 730000,China.2.Institute of Highway and Bridge,Dalian Maritime University,Dalian 116026,China. 

出　　处：《Research in Cold and Arid Regions》2009年第4期300-306,共7页寒旱区科学（英文版）

基　　金：Funding for this study has been provided by Natural Science Foundation of China under contract No.40271026;China Postdoctoral Science Foundation under contract No.20060400210;China National Society Commonweal Research Project under contract No.2001DLA50040-03;the support of K.C.Wong Education Foundation,Hong Kong

摘　　要：Based on the Chinese 19th National Antarctic Research Expedition,we carried out ship-based Antarctic sea-ice observa-tion on icebreaker Xue Long using Antarctic sea-ice process and climate (ASPeCt) criteria during austral summer.Sea-ice distribution data were obtained along nearly 6,500 km of the ship’s track.The measurement parameters included sea-ice thickness,sea-ice concentration,snow thickness,and floe size.Analysis showed the presence of the large spatial varia-tions of the observed sea-ice characteristics.Sea-ice concentration varied between 0 and 80 percent and reached its peak value in Weddell Sea because of the specific dynamical process affecting in summer sea-ice melting.There are large areas of open water along the study section.Sea ice and the upper snow thickness of the section varied between 10 cm and 210 cm and 2 cm and 80 cm,respectively,and each reaches its peak values near Amery ice shelf.The floe size varied from less than 10 cm and the maximum of more than 2,000 km along the section.Based on the Chinese 19th National Antarctic Research Expedition,we carried out ship-based Antarctic sea-ice observa-tion on icebreaker Xue Long using Antarctic sea-ice process and climate (ASPeCt) criteria during austral summer.Sea-ice distribution data were obtained along nearly 6,500 km of the ship's track.The measurement parameters included sea-ice thickness,sea-ice concentration,snow thickness,and floe size.Analysis showed the presence of the large spatial varia-tions of the observed sea-ice characteristics.Sea-ice concentration varied between 0 and 80 percent and reached its peak value in Weddell Sea because of the specific dynamical process affecting in summer sea-ice melting.There are large areas of open water along the study section.Sea ice and the upper snow thickness of the section varied between 10 cm and 210 cm and 2 cm and 80 cm,respectively,and each reaches its peak values near Amery ice shelf.The floe size varied from less than 10 cm and the maximum of more than 2,000 km along the section.

关 键 词：Antarctic sea ice ship-based observation 

分 类 号：P731.15[天文地球—海洋科学]