基于RS和GIS的城市热岛效应分析——以石家庄市为例

Urban Heat Island Effect Analysis Based on RS and GIS——A Case Study in Shijiazhuang

近些年,随着城市建设的高速发展,热岛效应也越来越被人们所重视。尤其是夏季城市热岛效应,造成高温酷暑,成为了城市生态环境问题的焦点。本文概述了热岛效应的成因和目前相关研究的成果,并以石家庄为例,运用遥感和GIS技术,利用2000年6月8日的TM影像,分析了石家庄市热岛效应的分布及其与相应下垫面类型的对比关系;针对改善城市夏季酷暑环境,对未来城市的发展提出建议,并展望了城市热岛效应的研究方向。

Recently, along with the fast -developing urban construction, the urban heat island effect （UHI） has caught great attention. UHI is particularly serious in the summer,when it leading to intensely high temperature,worsening the living condition of citizens. Summer UHI has become a focused point of all urban ecological questions. This article summarized the origin of UHI and the present correlation research achievement, and then based on the RS image and some Meteorological data, we take Shijiazhuang city as an example, using Landsat -TM, ERDAS and the E-cognition classification software, ArcGIS map study software, analyzed Shijiazhuang heat island effect, compare the two maps, and find out the relationship between the distribution of UHI and the corresponding surface types. According to the analysis results, we proposed some suggestions to the future city development, which can help improve the city environment. In the end of the article, we forecasted several possible research directions of the city UHI.