海洋预报2024，Vol.41Issue(6)：44-52,9.DOI:10.11737/j.issn.1003-0239.2024.06.005
基于探空数据的南海悬空波导预测模型研究
Study on elevated duct prediction model of the South China Sea based on radiosonde data
摘要
Abstract
Analysis on the formation mechanism of elevated ducts and their significant correlation with the height of the marine atmospheric boundary layer(MABL)are carried out based on the Global Position System(GPS)sounding data from the South China Sea(SCS).The results show that the occurrence probability of elevated ducts in the South China Sea is approximately 60％,with an average trapping layer height of 786 m and MABL height of 894 m.The correlation coefficient between them is 0.64,demonstrating a strong correlation.The strength and thickness of elevated ducts exhibit no significant relationship with the MABL height.Approximately 98％of elevated ducts are caused by sharp decreases in humidity with altitude,and about 50％of them are accompanied by temperature inversions.Based on these findings,an empirical model is developed to estimate the top height of elevated ducts using the temperature difference between near-surface and trapping layer bottom temperatures.The model demonstrates superior performance in the South China Sea compared to the Satellite Marine-layer/Elevated Duct Height technique proposed by the United States Navy.关键词
南海/悬空波导/海洋大气边界层高度/经验模型Key words
The South China Sea/elevated duct/marine atmospheric boundary layer/empirical model分类
海洋科学引用本文复制引用
成印河,钟卫,赵彬彬,乔文丽,李晓冉..基于探空数据的南海悬空波导预测模型研究[J].海洋预报,2024,41(6):44-52,9.基金项目
国家自然科学基金项目(41776029、42306036) （41776029、42306036）
国家自然科学基金专项项目(62341133) （62341133）
江苏省自然科学基金和面上项目(BK20241963) （BK20241963）
中国博士后科学基金面上项目(2023M731396). （2023M731396）
