Some parameters in arctic sea ice dy

Some parameters in arctic sea ice dynamics from an expedition in the summer of 2003

On the basis of the investigated data for sea ice physical processes during the Second Chinese National Arctic Research Expedition (CHINARE-2003) in the summer of 2003, the sea ice dynamical characteristics were analyzed and the parameters describing these characteristics were given. The new findings discovered from these parameters are:(1) The ice concentration obtained from the investigation is two tenths to three tenths lower compared with that from the NOAA Ice Chart; and the ice thickness in the summer is 2 m less compared with the results obtained during the First Chinese National Arctic Research Expedition in 1999 (CHINARE-1999),(2) the standard deviation of the ice bottom fluctuation is 3.8 times that of the snow surface on the ice sheet; (3) the maximum speed of the ice floe on which camp CHIS7 is located (CHIS7 floe) is 1 300 m/h with rotation and oscillation. The rotation angle increased stepwise, the maximum being 37.8 ° , while the CHIS7 floe moved toward the north-east, and its rotation angle decreased stepwise.While the CHIS7 floe moved south-eastward. The oscillation period of CHIS7 floe is 12.45 h, which is consistent with that of the inertial current at the same latitude, showing the contribution of the inertial current to the ice floe movement.

作 者： LI Zhijun ZHANG Zhanhai LU Peng DONG Xilu CHENG Bin CHEN Zhi   作者单位： LI Zhijun,LU Peng,DONG Xilu(State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China)

ZHANG Zhanhai(Polar Research Institute of China, Shanghai 200129, China)

CHENG Bin(Finnish Institute of Marine Research, Helsinki FIN-00931, Finland)

CHEN Zhi(National Marine Environment Forecast Center, Beijing 100081, China) 

刊 名： 海洋学报(英文版)  SCI 英文刊名： ACTA OCEANOLOGICA SINICA  年，卷(期)： 2005 24(6)  分类号： P7  关键词： Arctic Ocean   sea ice   ice concentration   thickness   roughness   rotation  

【Some parameters in arctic sea ice dy】相关文章：

MEASURING SEA ICE DRIFT VIA CROSS-CORRELATION OF RADAR ICE IMAGES04-28

Preliminary results on relationship between thermal diffusivity and porosity of sea ice in the Antarctic04-27

Viscosity of Sea Surface Microlayer in Jiaozhou Bay and Adjacent Sea Area04-28

Fiducial intervals of restricted parameters and their applications04-27

Between the Sea and the Sky05-04

Sonolysis and mineralization of pentachlorophenol by means of varying parameters04-26

Optimization of control parameters for petroleum waste composting04-28

Some的用法知多少?04-27

Molecular organic geochemistry of ornithogenic sediment from Svalbard, Arctic04-27

Influences of Geometric Parameters upon Nozzle Performances in Scramjets04-28