气候变化研究进展2017，Vol.13Issue(5)：456-464,9.DOI:10.12006/j.issn.1673-1719.2016.226
城市化对长沙市两气象站气温记录的影响
Urbanization Effects on the Observed Temperature of Two Meteorological Stations in Changsha City
摘要
Abstract
The daily data of temperature, wind direction and wind speed during 2007?2009 of the two meteorological stations located in the east and west regions of Changsha city, as well as the land cover dataset, were analyzed for better understanding of the impact of urbanization on the temperature records of meteorological stations close to city. The differences of climatic factors between the two stations were contrastively analyzed and the urban biases of temperature data were estimated by using the modified urban impact indicators. The results showed that the monthly mean temperature (Tmean), mean maximum temperature (Tmax) and mean minimum temperature (Tmin) at two stations differed greatly, and the largest difference were up to 0.90℃, 0.83℃ and 1.34℃, respectively. As influenced by urban area and wind directions, significant difference of monthly urban impact indicator (ΔK) between the two stations was observed, and the average K of East station and West station were 2.01 and 1.50, respectively. There was seasonal variation of the K at each station, and the ΔK and ΔT of two stations were positively and significantly correlated. The largest urban warming in Tmean of East station and West station were observed in 2007, which were up to 0.63℃ and 0.45℃, respectively. It is necessary to adjust the temperature data when analyzing the long-term climate change and using station records to analyze the spatial change of climate because the temperature records of meteorological stations near cities were significantly influenced by urban size, wind direction and wind speed.关键词
长沙市/城市化/气象站/气温/城市增温Key words
Changsha city/urbanization/meteorological station/temperature/urban warming引用本文复制引用
金凯,王飞,苟娇娇..城市化对长沙市两气象站气温记录的影响[J].气候变化研究进展,2017,13(5):456-464,9.基金项目
中国科学院国际合作局对外合作重点项目(16146KYSB20150001) （16146KYSB20150001）
欧盟委员会 Horizon2020 项目"基于中欧农业生产与环境恢复的交互式土壤质量评价"(635750) （635750）
中国科学院西部之光人才培养计划联合学者项目"黄土高原侵蚀坡地退耕还林草综合评价与可持续对策研究"( 院 [2013]165) （ 院 [2013]165）
国家重点研发计划"黄土高原水土流失治理与生态产业协同发展技术集成与模式"(2016YFC0501707) （2016YFC0501707）
