干旱区研究2023，Vol.40Issue(11)：1707-1717,11.DOI:10.13866/j.azr.2023.11.01
塔里木盆地沙尘天气日数变化及影响因素
Spatial characteristics of sand-dust weather days and influencing factors in the Tarim Basin
摘要
Abstract
This study used the Sen+M-K trend analysis,the gravity center movement model,the standardized regression coefficient,and the spatial clustering methods to reveal the spatial characteristics of the variation,trends,and movement of dust days of various types and the contribution rate of their influencing factors in the Tarim Basin based on the annual data of 32 meteorological stations between 1964 and 2022.The results indicated:(1)Floating dust,followed by blowing sand and sandstorms,dominate the Tarim Basin,showing a spatial distribution pattern of more in the south and less in the north,and the dust days of various types show significantly decreasing trends.(2)The gravity centers of dust days of various types in the Tarim Basin tended to move southeast,and the gravity center of sandstorm days moved the most.(3)Warmer temperatures,lower wind speeds,and fewer gale days were the main factors in the decreased dust days in the Tarim Basin,whereas precipitation had the least influence.(4)The high contribution rates of precipitation to dust days are clustered in the western part of the Tarim Basin,mean temperature and mean maximum temperature in the southern and western parts,respectively,and gale days and mean wind speed in the northwestern and southeastern parts,respectively.This study's results can provide a scientific basis for developing regionally applicable wind-breaking and sand-fixing measures in the Tarim Basin.关键词
沙尘日数/重心移动模型/影响因素/贡献率/空间聚类/塔里木盆地Key words
dust days/gravity center movement model/influencing factor/contribution rate/spatial clustering/Tarim Basin引用本文复制引用
程红霞,林粤江,陈鹏,梁凤超,王勇..塔里木盆地沙尘天气日数变化及影响因素[J].干旱区研究,2023,40(11):1707-1717,11.基金项目
新疆维吾尔自治区重点任务研发专项(2022294425) （2022294425）
新疆气象局引导性计划项目(YD202215) （YD202215）
国家自然科学基金项目(41965002) （41965002）
新疆维吾尔自治区自然科学基金青年科学基金项目(2022D01B09) （2022D01B09）
