热带气象学报2026，Vol.42Issue(1)：1-13,13.DOI:10.16032/j.issn.1004-4965.2026.001
城市化背景下珠江三角洲区域气候变化特征研究
Study on the Characteristics of Climate Change in the Pearl River Delta under the Background of Urbanization
摘要
Abstract
Based on daily temperature,precipitation,wind speed and relative humidity data from national meteorological observation stations from 1990 to 2020,this study analyzes the temporal and spatial characteristics of meteorological environment in the Pear River Delta(PRD).The effects and contributions of urban expansion to meteorological elements variations were quantitatively analyzed based on land use classification data in the PRD.The results showed that from 1990 to 2020,urban expansion was significant in the PRD,with the proportion of urban construction land area increasing from 5.71%to 14.99%.Regional mean annual temperature and annual precipitation showed an increasing trend,while annual strong wind days,annual low wind days,and annual relative humidity showed a weak declining trend.Urban expansion led to the increase of mean annual temperature,with a change rate of 0.05℃·(10 a)-1 and a contribution rate of 20.80%.Urban expansion led to the increase of annual precipitation,with a change rate of 28.80 mm·(10 a)-1 and a contribution rate of 46.24%.Urban expansion led to the increase of annual strong wind days,with a change rate of 1.16 d·(10 a)-1 and a contribution rate of 100%.Urban expansion led to the decrease of annual relative humidity,with a change rate of-0.84%·(10 a)-1 and a contribution rate of-100%.Urban expansion had no obvious effect on annual low wind days.Seasonally,the contribution of urban expansion was the highest for mean temperature in winter.Its contribution to precipitation in summer and autumn was higher than that in spring and winter.Contribution to strong wind days were relatively higher in spring,autumn and winter,and the contributions to relative humidity were high across all four seasons,and the contribution to low wind days was highest in autumn.关键词
城市扩张/气象要素/变化特征/珠江三角洲Key words
urban expansion/meteorological elements/variation characteristics/Pearl River Delta分类
天文与地球科学引用本文复制引用
朱怀卫,邓玉娇,王捷纯,孔蕴淇..城市化背景下珠江三角洲区域气候变化特征研究[J].热带气象学报,2026,42(1):1-13,13.基金项目
广东省基础与应用基础研究基金项目(2024A1515510009) （2024A1515510009）
广东省气象局科学技术项目(GRMC2023M61)共同资助 （GRMC2023M61）
