| A temporal sliding procedure for ocean wave variational data assimilation and its application |
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| 引用本文： | 杨永增 赵伟 滕涌. A temporal sliding procedure for ocean wave variational data assimilation and its application[J]. 中国海洋湖沼学报, 2006, 24(1): 35-41. DOI: 10.1007/BF02842772 |
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| 作者姓名： | 杨永增 赵伟 滕涌 |
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| 作者单位： | First Institute of Oceanography，First Institute of Oceanography，First Institute of Oceanography SOA，Qingdao 266061，China Key Laboratory of Marine Science and Numerical Modeling，SOA，Qingdao 266061，China，SOA，Qingdao 266061，China Key Laboratory of Marine Science and Numerical Modeling，SOA，Qingdao 266061，China，SOA，Qingdao 266061，China Key Laboratory of Marine Science and Numerical Modeling，SOA，Qingdao 266061，China |
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| 基金项目： | Supported by the High-Tech Research and Development Program of China (863 Program, No. 2001AA633070 2003AA604040)Na- tional Natural Science Foundation of China (No. 40206003). |
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| 摘 要： | For sequential performance of wave variational data assimilation, we proposed a temporal sliding method in which the temporal overlap is considered. The advantage of this method is that the initial wave spectrum of the optimization process is modified by the observations in latter and former times. This temporal sliding procedure is important for marginal region, such as the China seas, where the duration of assimilation effectiveness is 2-3 days. Experiments were performed in the whole course of Cyclone 9403 (Russ). Around the cyclone center, the maximum value of wave elements did not change much by assimilation, because the extreme value was determined by wind energy input that was not yet optimized. In the area outside the cyclone center, this modification is evident especially for wind wave growth.
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| 关 键 词： | 海洋动力学 波浪 数据同化作用 变异性 |
| 收稿时间： | 2005-05-15 |
| 修稿时间： | 2005-08-23 |
A temporal sliding procedure for ocean wave variational data assimilation and its application |
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| Yang Yongzeng,Zhao Wei,Teng Yong. A temporal sliding procedure for ocean wave variational data assimilation and its application[J]. Chinese Journal of Oceanology and Limnology, 2006, 24(1): 35-41. DOI: 10.1007/BF02842772 |
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| Authors: | Yang Yongzeng Zhao Wei Teng Yong |
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| Affiliation: | (1) First Institute of Oceanography, SOA, 266061 Qingdao, China;(2) Key Laboratory of Marine Science and Numerical Modeling, SOA, 266061 Qingdao, China |
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| Abstract: | For sequential performance of wave variational data assimilation, we proposed a temporal sliding method in which the temporal overlap is considered. The advantage of this method is that the initial wave spectrum of the optimization process is modified by the observations in latter and former times. This temporal sliding procedure is important for marginal region, such as the China seas, where the duration of assimilation effectiveness is 2-3 days. Experiments were performed in the whole course of Cyclone 9403 (Russ). Around the cyclone center, the maximum value of wave elements did not change much by assimilation, because the extreme value was determined by wind energy input that was not yet optimized. In the area outside the cyclone center, this modification is evident especially for wind wave growth. |
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| Keywords: | ocean wave variational data assimilation temporal sliding procedure |
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