干旱区研究2025，Vol.42Issue(3)：397-408,12.DOI:10.13866/j.azr.2025.03.01
中国西北地区逆温时空变化
Spatial and temporal distribution characteristics of the temperature inversion in Northwest China
摘要
Abstract
Based on the data from 19 sounding stations in 2022-2023,this study investigates the temporal and spatial variations of the temperature inversions in the lower,middle,and upper troposphere in northwest China.The results indicated the following:(1)In terms of monthly variations,inversions across all three tropospheric levels exhibit similar patterns,peaking in December and January-February of the following year and reaching a minimum from June to August.(2)In terms of spatial distribution,among the low-level inversions,low-level in-versions were most frequent in northern Xinjiang,at 40%-60%;the greatest thickness of low-level inversions was observed in northern Shanxi,exceeding 90 m;the intensity of low-level inversions was stronger in most ar-eas of Xinjiang,ranging from 2℃and 3℃.For mid-level inversions,their frequency was highest in Qinghai and decrease outward from this region.High-level inversions were most pronounced in northern Xinjiang,with their frequency decreasing outward from this region.(3)The occurrence of low-level inversions in northwest China is influenced by surface radiation and topography,the occurrence of mid-level inversions is associated with warm advection and subsidence movement,and the occurrence of high-level inversions may be related to the top of the temperate troposphere and ozone.(4)In the summer of northwest China,influenced by solar radiation and sur-face cooling.below the 0℃isotherm height,the intensity of inversions is stronger;above the 0℃isotherm height,the inversions have weaker intensity.关键词
逆温/对流层/时空变化/形成原因/0℃层高度/西北地区Key words
temperature inversion/troposphere/spatial and temporal variation/formation reason/0℃isotherm height/Northwest China引用本文复制引用
沙贝宁,杨余辉,黄佛君,叶茂..中国西北地区逆温时空变化[J].干旱区研究,2025,42(3):397-408,12.基金项目
国家自然科学基金项目(42161004) （42161004）
第三次新疆综合科学考察项目(2021xjkk0406) （2021xjkk0406）
