渤海冰漂移对海面风场、潮流场的响应

吴龙涛; 吴辉碇; 李万彪; 刘钦政; 张蕴斐; 刘煜; 白珊

渤海冰漂移对海面风场、潮流场的响应

1.
北京大学, 物理学院大气科学系, 北京 100871
2.
国家海洋环境预报中心, 北京 100081

基金项目: "HY-1卫星资料在海冰预报中的业务应用"项目;国家自然科学基金项目(40233032,40376006);十五国家科技项目(2001BH603B-03,2001CB711006,2001DIA50040);"863"项目(2202AA639340).

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出版历程
- 收稿日期: 2004-09-25
- 修回日期: 2005-04-18

Sea ice drifts in response to winds and tide in the Bohai Sea

1.
Department of Atmospheric Sciences, School of Physics, Peking University, Beijing 100871, China
2.
National Marine Environmental Forecasting Centre, Beijing 100081, China

摘要

摘要: 在对海冰漂移动力学分析基础上,利用MODIS资料,采用MCC方法获取渤海大范围冰覆盖的海域冰速场,并利用NCEP风速资料和潮流资料进行回归分析,得到渤海冰漂移速度与风速和流速的关系.利用MODIS和NOAA/AVHRR资料获取的渤海冰速资料的综合分析显示:渤海海冰运动,除受盛行风控制外,还受到复杂的海岸地形、流和冰内应力的共同作用,所得到的大范围海冰运动规律和多年历史观测资料分析结果基本一致,并清楚地显示了冰边缘带海冰运动的特征,弥补了局地、单站海冰观测的局限性.
- 冰漂移 /
- 风力系数 /
- 卫星遥感 /
- MODIS /
- MCC /
- 渤海
Abstract: On the Basis of the dynamic analyses of the sea ice motion,the ice velocity is extracted from MODIS images by the MCC method for the Bohai Sea.The dependence of the ice velocity on wind and current is estimated by using regression analysis.From the sea ice motion data extracted from the MODIS and AVHRR images,it is found that the sea ice motion in the Bohai Sea is effected not only by prevailing winds but also by topographic steering,ocean currents and internal ice stresses.The extracted sea ice driftis similar to observed ice drift,and can clearly showt he sea ice drift in the Marg inal Ice Zone especially.It can compensate for the limitation of the local or single station observation.
- ice drift /
- wind coef ficient /
- satellite remote sensing /
- MODIS /
- MCC /
- Bohai Sea

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