高原气象2026，Vol.45Issue(4)：998-1010,13.DOI:10.7522/j.issn.1000-0534.2025.00112
内蒙古复合干旱和热浪事件特征及其归因
Analysis of the characteristics and attribution of compound drought and heatwave events in Inner Mongolia
摘要
Abstract
Under the background of global climate warming,compound drought and heatwave events(Com-pound Drought and Heatwave,CDHW)are having a profound impact various regions worldwide with increasing frequency,intensity,and duration.Based on the daily temperature and precipitation data from 1961 to 2021 in Inner Mongolia,we employed a daily-scale standardized index to identify different CDHW events in the study ar-ea.Subsequently,we analyzed the temporal and spatial evolution characteristics and influencing factors of vari-ous CDHW events using climate tendency rate,partial correlation analysis and geographic detectors.The results show that:the duration,frequency,drought intensity and heatwave intensity of the four types of CDHW events in Inner Mongolia from 1961 to 2021 increased gradually from the southwest to the northeast;The characteristic indicators of the four types of CDHW events exhibited an upward trend,with significant increases observed in the intersection type(d-and-h)and the heatwave conditioned on droughttype(h-cond-d)events;The correlation be-tween precipitation and the changes in the four types of CDHW events was found to be high,with over 97%of the significance tests indicating a significant relationship;Soil type and downward shortwave radiation at the sur-face were identified as the main driving factors for the duration and frequency of different types of CDHW events.Moreover,the interaction between various driving factors showed an enhanced explanatory power for du-ration and frequency,with a greater impact observed on duration.关键词
复合干旱和热浪事件/偏相关分析/地理探测器/内蒙古Key words
compound drought and heatwave events/partial Correlation Analysis/geographical detector/Inner Mongolia分类
天文与地球科学引用本文复制引用
郭佳丽,郭恩亮,王永芳,王俊..内蒙古复合干旱和热浪事件特征及其归因[J].高原气象,2026,45(4):998-1010,13.基金项目
国家自然科学基金地区项目(42261019) （42261019）
一流学科科研专项项目(YLXKZX-NSD-027) （YLXKZX-NSD-027）
内蒙古自治区自然科学基金面上项目(2024MS04002) （2024MS04002）
内蒙古自治区重点研发和成果转化计划项目(2025YFSH0056,2025KJHZ0047) （2025YFSH0056,2025KJHZ0047）
