On analyzing space-time distribution of evaporation duct height over the global ocean

YANG Kunde; ZHANG Qi; SHI Yang; HE Zhengyao; LEI Bo; HAN Yina

doi:10.1007/s13131-016-0903-0

世界海洋蒸发波导时空统计规律研究

doi: 10.1007/s13131-016-0903-0

海洋声学信息感知工业和信息化部重点实验室(西北工业大学), 西安, 710072;西北工业大学航海学院, 西安, 710072

基金项目: The National Natural Science Foundation of China under contract No.11174235; the Fundamental Research Funds for the Central Universities under contract No. 3102014JC02010301.

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- 收稿日期: 2014-07-07
- 修回日期: 2015-08-25

On analyzing space-time distribution of evaporation duct height over the global ocean

Key Laboratory of Ocean Acoustics and Sensing (Northwestern Polytechnical University), Ministry of Industry and Information Technology, Xi'an 710072, China;School of Marine Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China

摘要

摘要: 海洋蒸发波导自然现象对近海面电磁波的传播有重要影响，获取世界海洋的蒸发波导的时空统计规律对于海上雷达、通信等电子系统的设计和应用，具有重要的意义。本文基于高分辨率的NCEP再分析数据库（时间分辨率：1小时，空间分辨率：0.313°×0.312°）计算得到了世界海洋蒸发波导的分布特性，并利用太平洋气象浮标数据和黄海路径损失测量数据评估了计算方法的有效性。针对各个海域，分析得到了蒸发波导和相关气象参数的时空统计规律，并对不同海域的蒸发波导分布成因进行了分析。
- 蒸发波导 /
- 再分析数据 /
- 电磁传播 /
- 时空统计规律
Abstract: The statistical features of the evaporation duct over the global ocean were comprehensively investigated with reanalysis data sets from the National Centers for Environmental Prediction. These data sets have time and spatial resolutions of 1 h and 0.313°×0.312°, respectively. The efficiency of the analysis was evaluated by processing weather buoy data from the Pacific Ocean and measuring propagation loss in the Yellow Sea of China. The distribution features of evaporation duct height (EDH) and the related meteorological factors for different seas were analyzed. The global EDH is generally high and demonstrates a latitudinal distribution for oceans at low latitudes. The average EDH is approximately 11 m over oceans beside the equator with a latitude of less than 20°. The reasons for the formation of the global EDH features were also analyzed for different sea areas.
- evaporation duct /
- reanalysis data /
- electromagnetic wave /
- space-time distributions

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参考文献(25)

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文章访问数: 1216
HTML全文浏览量: 57
PDF下载量: 595
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世界海洋蒸发波导时空统计规律研究

doi: 10.1007/s13131-016-0903-0

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On analyzing space-time distribution of evaporation duct height over the global ocean

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