极地研究2013，Vol.25Issue(1)：96-104,9.DOI:10.3724/SP.J.1084.2013.00096
2009年春夏季北极海冰运动及其变化监测
MONITORING THE MOTION OF ARCTIC SEA-ICE AND ITS CHANGES IN SUMMER AND WINTER 2009
摘要
Abstract
Polar sea-ice has an important impact on the global climate, and the monitoring of Arctic sea-ice is a critical component of the study of global climate change. On the basis of 1MB data which was acquired during the CHIN-ARE-2008 and MODIS images, the Arctic sea-ice motion and changes were investigated. The results showed that the effect of sea-ice concentration images which were inversed by using MODIS images was good. And the accuracy of discrimination between sea-water and sea-ice was high. There was a general downward trend in both sea-ice concentration and drifting speed, and they were related to each other. The track of sea-ice from northwest to southeast was consistent with the 2009 annual surface circulation pattern of wind-driven currents in the Arctic. The ice-free lanes also ran in a northwest to southeast direction, indicating that the general change in sea-ice movement was influenced by wind fields and ocean currents. We investigated the outliers of sea-ice concentration and plots of sea-ice tracks, and concluded that surface morphology and variations in sea-ice concentration were also related to winds and ocean currents as well as being directly or indirectly affected by topographic conditions.关键词
海冰密集度/海冰运动/MODIS影像/冰浮标/北极Key words
sea-ice concentration, sea-ice motion, MODIS image, ice buoy, Arctic引用本文复制引用
邓娟,柯长青,雷瑞波,孙波..2009年春夏季北极海冰运动及其变化监测[J].极地研究,2013,25(1):96-104,9.基金项目
国家高技术研究发展计划(863计划)重点项目课题(2008AA121705)、国家自然科学基金项目(40971044)、教育部新世纪优秀人才支持计划项目(NCET-08-0276)、南北极环境综合考察与评估专项(CHINARE2012-02-02)和江苏高校优势学科建设工程项目资助 （863计划）
