WWATCH模式模拟南海海浪场的结果分析

齐义泉; 朱伯承; 施平; 毛庆文; 范辰五

WWATCH模式模拟南海海浪场的结果分析

1.
中国科学院, 南海海洋研究所LED实验室, 广东, 广州, 510301
2.
NavalPostgraduateSchool, Monterey, CA, 93940, USA

基金项目: 中国科学院知识创新工程资助项目(KZCX2-202);广东省自然科学基金(990314);国家自然科学基金(49976006)

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出版历程
- 收稿日期: 2001-10-15
- 修回日期: 2002-09-18

Analysis of significant wave heights from WWATCH and TOPEX/Poseidon Altimetry

1.
LED, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, Cnina
2.
Naval Postgraduate School, Monterey, CA, 93940, USA

摘要

摘要: 利用美国NOAA/NCEP环境模拟中心海洋模拟小组近年新开发的一个准业务化的海浪数值模式WAVEWATCH Ⅲ(以下简称WWATCH),以每天4次的NOAA/NCEP再分析风场资料为输入,模拟了1996年的南海海域的海面风浪场,通过分析TOPEX/Poseidon(以下简称T/P)高度计的上升和下降轨道在南海海域的交叉点位置处的风、浪观测资料与NCEP风场和WWATCH模式模拟的有效波高大小,可以看出,NCEP风场基本与T/P高度计的风速观测结果一致,相应的模式模拟的有效波高也基本与卫星高度计的有效波高观测结果相一致,但从空间上看,在计算区域中心附近海域的结果一致性较好,靠近计算边界附近海域的结果相对较差,但这种因边界而影响模拟结果的范围很有限;从时间上看,冬季风期间的结果一致性较好,而夏季风期间的结果偏小的趋势明显,并且这种偏小主要出现在夏季风期间的极小风速值附近。
- WWATCH模式 /
- 有效波高 /
- 南海海浪场 /
- 高度计资料
Abstract: A full-spectral third-generation ocean wind-wave model WAVEWATCH Ⅲ (henceforth denoted as WWATCH),which has been developed at the Ocean Modeling Branch(OMB) of the Environmental Modeling Center (EMC) of the National Centers for Environmental Prediction (NCEP),is used to simulate the wind wave during the year 1996 with wind input of NCEP re-analysis data 4 times daily in the South China Sea (SCS).The significant wave heights(SWH) from WWATCH model and TOPEX/Poseidon (T/P) altimetric data are compared over the crossover points in the SCS for the year 1996,and the wind speeds from NCEP re-analysis data and T/P data are also compared to help analyze the results from the WWATCH model.The temporal variation of SWHs from WWATCH is generally consistent with that from T/P,and the maximum differences between SWHs from WWATCH and T/P occur in low wind speed during summer monsoon especially.The spatial consistency of SWHs from WWATCH and T/P in center areas is better than that close to the model boundary.
- WWATCH model /
- significant wave heights /
- the South China Sea /
- TOPEX/PoseidonWWATCH model

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参考文献(13)

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