| 中国近海大气波导的时空特征分析 |
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| 引用本文： | 陈莉,高山红,康士峰,张玉生,吴增茂.中国近海大气波导的时空特征分析[J].电波科学学报,2009,24(4). |
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| 作者姓名： | 陈莉 高山红 康士峰 张玉生 吴增茂 |
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| 作者单位： | 1. 中国海洋大学物理海洋实验室,山东,青岛,266100
2. 中国电波传播研究所,山东,青岛,266107 |
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| 基金项目： | 重点实验室基金，国家自然科学基金，973 |
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| 摘 要： | 利用2006～2007年高时空分辨率的NCEP-FNL大气再分析数据与气象观测数据,详细统计分析了中国近海大气波导的时空分布,给出了大气波导出现概率与其高度、厚度和强度等特征量的统计特征,并初步探讨了其成因.统计结果揭示:中国近海大气波导出现概率及波导类型的变化与东亚季风活动紧密关联,季风是其气候学成因;夏季时渤海、黄海、东海沿岸海域大气波导明显增多;台湾海峡与台湾东南毗邻海域常年是波导发生最频繁的海区.研究表明:借助中尺度大气数值模拟可以更细致地研究与预测中国近海大气波导的时空分布特征.
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| 关 键 词： | 大气再分析数据 中国近海 大气波导 时空特征 统计分析 |
Statistical analysis on spatial-temporal features of atmospheric ducts over Chinese regional seas |
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| CHEN Li,GAO Shan-hong,KANG Shi-feng,ZHANG Yu-sheng,WU Zeng-mao.Statistical analysis on spatial-temporal features of atmospheric ducts over Chinese regional seas[J].Chinese Journal of Radio Science,2009,24(4). |
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| Authors: | CHEN Li GAO Shan-hong KANG Shi-feng ZHANG Yu-sheng WU Zeng-mao |
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| Affiliation: | CHEN Li1 GAO Shan-hong1 KANG Shi-feng2 ZHANG Yu-sheng2 WU Zeng-mao1 (1.Physical Oceanography Laboratory,Ocean University of China,Qingdao Sh,ong 266100,China,2.China Research Institute of Radiowave Propagation,Qingdao Sh,ong 266107,China) |
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| Abstract: | Based on the combined use of high-resolution NCEP-FNL reanalysis data and meteorological observations,spatial-temporal features of atmospheric ducts over Chinese regional seas are statistically analyzed.Statistical information of occurrence probability,height,thickness and strength of the ducts are outlined in detail,and its generation mechanism is primarily discussed.The results are summarized as follows: first,there exists a close relationship between variance of appearance probability and type of the duc... |
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| Keywords: | reanalysis data China regional seas atmospheric ducts spatial-temporal features statistical analysis |
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