| 东海区域蒸发波导变化特性研究 |
| |
| 引用本文： | 蔡夕方,王静菊,何锡玉,张守宝,朱庆林,胡建平.东海区域蒸发波导变化特性研究[J].电波科学学报,2020,35(3):372-376. |
| |
| 作者姓名： | 蔡夕方 王静菊 何锡玉 张守宝 朱庆林 胡建平 |
| |
| 作者单位： | 1.中国人民解放军91001部队, 北京 100161 |
| |
| 基金项目： | 国家重点研发计划2017YFC1404005 |
| |
| 摘 要： | 为了分析东海蒸发波导高度的季节变化、月变化，讨论其分布规律，为雷达探测和无线电通讯提供参考，利用2008-2017年的十年NCEP-FNL再分析数据和改进的NPS蒸发波导模型，统计分析了我国东海海域蒸发波导发生规律和时空分布特征.结果表明:东海蒸发波导高度在春季和夏季呈西北高东南低的特点，其中春季为高度最高的季节，5月份东海西北部可高达20 m，夏季6月份在东海中部出现最低值；秋季和冬季反之，呈西北低东南高的特点.分析表明，东海蒸发波导高度存在明显的季节变化、月变化以及区域差异，这可能与东海的地理特征和气候变化相关.
|
| 关 键 词： | 东海 蒸发波导 FNL 时间变化 空间变化 |
| 收稿时间： | 2019-11-19 |
Research on change features of evaporation duct over the East China Sea |
| |
| Affiliation: | 1.Unit No. 91001 of PLA, Beijing 100161, China2.China Research Institute of Radiowave Propagation, Qingdao 266107, China3.Hainan Tropical Ocean University, Sanya 572000, China |
| |
| Abstract: | Based on the final analysis data(FNL) from National Centers for Environment Prediction (NCEP) reanalysis data and the improved NPS diagnostic model, the seasonal and monthly changes of evaporation duct over East China Sea are analyzed. The distribution of ducts is discussed to provide reference for radar detections and radio communications. The results show that the evaporation duct height of northwest is higher than southeast in spring and summer. Spring is the season with the highest duct height. The maximum of evaporation duct height over the northwest of East China Sea is in May, which is 20 m. For the central East China Sea, the lowest evaporation duct height is in June. On the contrary, higher in southeast in autumn and winter. There are obvious seasonal, monthly and regional differences in the height of the evaporation duct over the East China Sea. This may be related to the geographical characteristics of the East China Sea and climate change. |
| |
| Keywords: | |
|
| 点击此处可从《电波科学学报》浏览原始摘要信息 |
|
点击此处可从《电波科学学报》下载全文 |
|
