太平洋、大西洋和印度洋对年极运动的激发

Jin Ma, Yonghong Zhou, D. Liao, Jianli Chen
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引用次数: 3

摘要

除了大气外,全球海洋在激发年度极地运动方面也起着重要作用。然而,区域海洋对年度极地运动的贡献有多大仍不清楚。利用1993-2005年“海洋环流与气候估算(ECCO)”模式的海流速度场和海底压力场输出数据,系统探讨了太平洋、大西洋和印度洋对年极运动激发的贡献。结果表明,由于其特殊的位置和形状,大西洋对年极运动激发的x分量的贡献小于太平洋和印度洋,而这三个海洋对年极运动激发的y分量都有一定的贡献。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Excitation of Annual Polar Motion by the Pacific, Atlantic and Indian Oceans
The global oceans play important roles in exciting the annual polar motion besides the atmosphere. However, it is still unclear about how large the regional oceans contribute to the annual polar motion. We investigate systemically the contributions of the Pacific, Atlantic and Indian Oceans to the excitation of the annual polar motion, based on the output data of ocean current velocity field and ocean bottom pressure field from "Estimating the Circulation and Climate of the Ocean (ECCO)" ocean circulation model over the period 1993-2005. The result shows that due to its particular location and shape, the Atlantic Ocean makes a less significant contribution to the x-component of the annual polar motion excitation than the Pacific and Indian Oceans, while all these three oceans contribute to the y-component of the annual polar motion excitation to some extent.
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