| 理想化南极融冰方案的海洋边界条件初探 |
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| 引用本文： | 马 浩,张作为.理想化南极融冰方案的海洋边界条件初探[J].海洋科学,2011,35(1):75-80. |
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| 作者姓名： | 马 浩 张作为 |
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| 作者单位： | 1. 中国海洋大学,物理海洋实验室,山东,青岛,266100;中国海洋大学,海洋-大气相互作用与气候实验室,山东,青岛,266100
2. 中国海洋大学,物理海洋实验室,山东,青岛,266100 |
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| 基金项目： | 国家杰出青年科学基金项目(40788002) |
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| 摘 要： | 基于气候态的SODA(simple Ocean Data Assimilation)数据,比较了气候态意义下南极附近和南极绕极流区域的海洋层结,对南极融冰问题的合理海洋边界条件进行了初步探讨.结果表明:南极融冰所注入的淡水通量在大西洋东部和印度洋海区将沿着表层路径到达南极绕极流区,在大西洋西部和太平洋的经向运动路径视淡...
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| 关 键 词： | 南极融冰 淡水通量 海洋层结 |
| 收稿时间： | 5/4/2009 12:00:00 AM |
| 修稿时间： | 2010/11/7 0:00:00 |
A preliminary study on the oceanic boundary condition of an idealized Antarctic ice sheet melting scheme |
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| MA Hao,ZHANG Zuo-wei.A preliminary study on the oceanic boundary condition of an idealized Antarctic ice sheet melting scheme[J].Marine Sciences,2011,35(1):75-80. |
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| Authors: | MA Hao ZHANG Zuo-wei |
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| Institution: | MA Hao1,2,ZHANG Zuo-wei1(1.Physical Oceanography Laboratory,Ocean University of China,Qingdao 266100,China,2.Ocean-Atmosphere Interaction and Climate Laboratory,China) |
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| Abstract: | Using the Simple Ocean Data Assimilation (SODA) climatological data, we compared the climatological oceanic stratification around the Antarctic and the Antarctic Circumpolar Current (ACC) region to conduct a preliminary study on the reasonable oceanic boundary condition of Antarctic ice sheet melting. Our results indicate freshwater flux induced by ice-melting will advect along the surface path in the East Atlantic and Indian Ocean, while in the West Atlantic and Pacific Ocean, the meridional motion path of freshwater flux depends on the intensity of freshwater flux itself. When there appears intense ice-melting of Antarctic, freshwater will travel along the surface path; when ice-melting is relatively generous, subsurface path will be preferred by freshwater flux. On the basis of these analyses, we quantitatively assessed the threshold state guaranteeing freshwater flux moving along surface path, and further analyzed the rationality of simulation of Antarctic ice-melting with idealized freshwater flux in most of current climate models, in order to providing neccessary reference for the selection of modeling strategy simulating the Antarctic ice-melting scenario. |
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| Keywords: | Antarctic ice sheet melting freshwater flux oceanic stratification |
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