Statistical estimations of atmospheric duct over the South China Sea and the Tropical Eastern Indian Ocean  

作　　者：ZHAO XiaoFeng WANG DongXiao HUANG SiXun HUANG Ke CHEN Ju 

机构地区：[1]Institute of Meteorology and Oceanography, PLA University of Science and Technology [2]State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences

出　　处：《Chinese Science Bulletin》2013年第23期2794-2797,共4页

基　　金：supported by the National Basic Research Program of China(2011CB403504);the National Natural Science Foundation of China(41175025)

摘　　要：In 2010-2012 spring, atmospheric duct observation experiments were performed throughout three open cruises over the South China Sea and the Tropical Eastern Indian Ocean. The data used for ducting analysis were measured by high resolution balloon-borne GPS radiosondes. Through data quality control and diagnostic analysis, the probability of ducting occurrence and characteristic quantities of the three typical ducts were given. The total percentage occurrence of evaporation duct, surface-based duct and elevated duct were 75.3%, 5% and 43.7%, respectively. The mean evaporation duct height was 15.3 m. The mean values of duct height, thickness and magnitude were 84.1 m, 14.9 m and 10 M-units for surfaced-based duct, and 1003.6 m, 62.2 m and 7.9 M-units for elevated duct. These preliminary statistical results can serve as a basis for future comprehensive and comparative studies of atmospheric duct for the research region.In 2010-2012 spring, atmospheric duct observation experiments were performed throughout three open cruises over the South China Sea and the Tropical Eastern Indian Ocean. The data used for ducting analysis were measured by high resolution balloon-borne GPS radiosondes. Through data quality control and diagnostic analysis, the probability of ducting occurrence and characteristic quantities of the three typical ducts were given. The total percentage occurrence of evaporation duct, surface-based duct and elevated duct were 75.3%, 5% and 43.7%, respectively. The mean evaporation duct height was 15.3 m. The mean values of duct height, thickness and magnitude were 84.1 m, 14.9 m and 10 M-units for surfaced-based duct, and 1003.6 m, 62.2 m and 7.9 M-units for elevated duct. These preliminary statistical results can serve as a basis for future comprehensive and comparative studies of atmospheric duct for the research region.

关 键 词：大气波导 统计估计 东印度洋 中国南海 热带 架空管道 数据质量控制 观测实验 

分 类 号：P732.6[天文地球—海洋科学] TN011.3[电子电信—物理电子学]