大气科学2025，Vol.49Issue(6)：1746-1762,17.DOI:10.3878/j.issn.1006-9895.2411.24070
基于多源观测的中国及周边区域飞机高空颠簸特征分析
Examining Upper-Level Aviation Turbulence over China and Its Surroundings Based on a Combination of Multisource Observations
摘要
Abstract
Upper-level aviation turbulence is triggered by turbulence in the free atmosphere.It is a major concern for aircraft operations.The turbulence over China shows an increasing trend under a warming climate.To better understand the sources and characteristics of the upper-level aviation turbulence over China,two sets of Aircraft Meteorological Data Relay(AMDAR)were used to establish a one-year global turbulence observation dataset comprising the eddy dissipation rate(EDR)through quality controls and consistency processing.Based on aviation,FY-4A satellite observations,and ERA5 reanalysis,the spatial distribution,as well as the seasonal and diurnal variations of three types of upper-level aviation turbulence-clear-air turbulence(CAT),near-cloud turbulence(NCT),and convective-induced turbulence(CIT)-over China,were analyzed.The analysis revealed that the active zone of CAT tends to occur in the upper troposphere near the tropopause in the vertical direction.There are four active zones of NCT over China:eastern China,northern China,the South Sea,and Japan.The northern to eastern slopes of the Qinghai-Xizang Plateau are regions with a high probability of NCT in western China.CIT is concentrated mainly over southern China.All three types of turbulences exhibit typical seasonal and diurnal variations.CAT is more common in the afternoon during winter and spring seasons,while NCT and CIT are more likely to occur in the morning during summertime.关键词
飞机颠簸/AMDAR资料/卫星观测/晴空颠簸/对流诱导颠簸/近云颠簸Key words
Aviation turbulence/AMDAR data/Satellite observations/Clear-air turbulence/Convective-induced turbulence/Near-cloud turbulence分类
天文与地球科学引用本文复制引用
王思贤,寿亦萱,刘海文,陆风..基于多源观测的中国及周边区域飞机高空颠簸特征分析[J].大气科学,2025,49(6):1746-1762,17.基金项目
中国气象局创新发展专项项目CXFZ2025J061,国家自然科学基金项目41965001、U2033207 Special Project for Innovation and Development of China Meteorological Administration(Grant CXFZ2025J061),National Natural Science Foundation of China(Grants 41965001,U2033207) （Grant CXFZ2025J061）
