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| 1957～2002年南海—北印度洋海浪场波候特征分析 | |
| 引用本文： | 郑崇伟,李训强,潘静.1957～2002年南海—北印度洋海浪场波候特征分析[J].台湾海峡,2012,31(3):317-323. |
| 作者姓名： | 郑崇伟 李训强 潘静 |
| 作者单位： | 1. 92538部队12分队,辽宁大连,116041 2. 解放军理工大学气象学院,江苏南京,211101 3. 中国科学院大气物理研究所,北京,100029 |
| 基金项目： | 国家重点基础研究发展规划资助项目，中国科学院知识创新工程重要方向资助项目 |
| 摘 要： | 利用ERA-40海表10 m风场驱动第三代海浪数值模式WAVEWATCH-Ⅲ,得到南海—北印度洋1957年9月至2002年8月的海浪场,并分析其波候(风候)特征.研究发现如下主要特征:(1)该海域的波高波向、风速风向受季风影响显著;(2)北印度洋大部分海域的海表风速呈显著性逐年线性递增趋势,大约0.01～0.02 m/(s·a),南海线性递增的区域则较少,有效波高呈显著性逐年线性递增的区域主要集中在低纬度中东印度洋(约0.003～0.006 m/a)、索马里附近海域(大约0.002～0.005 m/a)、南海大部分海域(约0.002～0.004 m/a),线性递减的区域主要集中在孟加拉湾海域(约-0.002 m/a);(3)Nino3指数与南海—北印度洋的海表风场、浪场存在密切的关系;(4)南海—北印度洋的海表风速与有效波高存在5.2a左右的共同周期,南海的海表风速、有效波高还存在2.0a左右的共同周期,北印度洋的海表风速、有效波高还存在26.0a的长周期震荡. |
| 关 键 词： | 物理海洋学 WAVEWATCH-Ⅲ模式 ERA-40风场 波候 线性趋势 Nino3指数 周期 |
Wave climate analysis of the South China Sea and North Indian Ocean form 1957 to 2002 |
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| ZHENG Chong-wei , LI Xun-qiang , PAN Jing.Wave climate analysis of the South China Sea and North Indian Ocean form 1957 to 2002[J].Journal of Oceanography In Taiwan Strait,2012,31(3):317-323. | |
| Authors: | ZHENG Chong-wei LI Xun-qiang PAN Jing |
| Institution: | 1.12 Unit,No.92538 Army of PLA,Dalian 116041,China;2.Institute of Meteorology,PLA University of Science and Engineering,Nanjing 211101,China;3.Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China) |
| Abstract: | The third-generation wave model WAVEWATCH-Ⅲ was used to simulate the wave field from September 1957 to August 2002 with inputs of ERA-40 10 m surface wind data in the South China Sea and North Indian Ocean.Results show that：（1） the wind field and wave field were significantly affected by the monsoon in the South China Sea and North Indian Ocean.（2） Sea surface wind speed in most areas of North Indian Ocean has an obvious increasing tendency,about 0.01～0.02 m/（s·a）,the linear trend in the South China Sea is not obvious.The significant wave height shows an obvious annually linear increasing trend mainly located in low latitude of mid-east Indian Ocean（about 0.003～0.006 m/a）,waters around Somalia（about 0.002～0.005 m/a）,and most areas in the South China Sea（about 0.002～0.004 m/a）,the area with decreasing tendency mainly located in waters of Bengal Bay（about-0.002 m/a）.（3） There is a close relationship between the nino3 index and wave field（wind field） in the South China Sea and North Indian Ocean.（4） The wind speed and significant wave height in the South China Sea and North Indian Ocean have the same period of 5.2 years,the wind speed and significant wave height in the South China Sea have the same period of 2.0 years,the wind speed and significant wave height in the North Indian Ocean have the same period of 26.0 years. |
| Keywords: | physical oceanography WAVEWATCH-III model ERA40 wind field wave climate linear trend Nino3 index period |
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