摘要
研究城市热岛效应的时空演变特征是缓解热岛效应的基础,已成为当前科学研究的热点问题。合肥市是安徽省省会城市,自改革开放以来,城市热岛效应日趋显著。定量分析合肥市热岛效应的时空演变特征,可以为合理规划城市建设,进一步缓解和控制城市热岛提供科学依据。该文基于landset遥感数据,运用覃志豪单窗算法,反演合肥市地表温度,利用均值-标准差方法进行地表温度区划分热岛区,定性地描述热岛区的扩展方向和程度。结果表明:合肥市存在城市热岛效应,1995—2010年间城市热岛效应不断增强,城市热岛主要集中在老城区以及各辖区中心人口、工业集聚的地区。
Evolvement of urban heat island is the basis of relieving heat island effect and is the hotspot issues ofptrsent scientific research.As the capital in Anhui Province,Hefei development rapidly since the reform and openingpolicy in late 1970 s.Quantitatively analysis of the trend of Hefei heat island effect can provide scientific basis for ra-tional planning of urban construction,mitigation and control of urban heat island. The study is based on the remotesense data,retrieve land surface temperature of research area through Qin Zhihao’s mono-window algorithm.Then,using the mean-standard deviation method to divide the urban heat island,qualitatively describe the direction anddegree of heat island region.Research has concluded that urban heat island effect surely exist in Hefei City,mainlyconcentrated in the center of the old city and the jurisdiction of population,industrial agglomeration area.The heat is-land effect of Hefei had grown stronger from 1995 to 2010.
出处
《安徽农学通报》
2016年第23期91-95,共5页
Anhui Agricultural Science Bulletin
基金
安徽省哲学社会科学规划项目(AHSKY2015D72)
关键词
合肥市
热岛效应
时空演变
Hefei City
Thermal environment
Evolvement
