沙漠与绿洲气象2025,Vol.19Issue(1):32-39,8.DOI:10.12057/j.issn.1002-0799.2311.22002
2023年新疆夏季极端高温干旱特征
Characteristics of the Extreme High Temperature and Drought in Summer 2023 in Xinjiang
摘要
Abstract
Based on daily air temperature and precipitation data from 99 national meteorological observation stations in Xinjiang during the summer of 1961-2023,along with NCEP/NCAR reanalysis data,this study analyzed the characteristics of extreme high temperatures and drought in Xinjiang during the summer of 2023,and discussed the potential causes.The results showed that the average temperature and number of high-temperature days in the summer of 2023 broke historical records,with the cumulative intensity of regional high-temperature events being the strongest on record.Precipitation during the summer of 2023 was the lowest for the same period in history,and the persistent high temperatures and low rainfall led to widespread meteorological drought of moderate or greater intensity across northern Xinjiang.At 500 hPa,the Iranian High and the West Pacific Subtropical High formed a high-pressure belt,with Xinjiang being influenced by positive anomalies.At 100 hPa,Xinjiang remained under the influence of the South Asian High.This atmospheric configuration resulted in a prevalence of sinking airflow in the high and middle levels of the troposphere,leading to clear skies,an increase in high-temperature days,and enhanced surface evaporation,all of which contributed to the development and intensification of drought.关键词
极端高温/气象干旱/夏季/新疆/环流成因Key words
extreme high temperature/meteorological drought/summer/Xinjiang/circulation factors分类
天文与地球科学引用本文复制引用
玛依拉·买买提艾力,吴秀兰,阿布力米提·塔西,程贺前..2023年新疆夏季极端高温干旱特征[J].沙漠与绿洲气象,2025,19(1):32-39,8.基金项目
新疆维吾尔自治区自然科学基金项目(2022D01B181) (2022D01B181)
新疆气象局科技创新发展基金项目(21909007) (21909007)