摘要
全球气候变暖和城市化的快速发展,导致了城市不透水面急剧增加和热岛效应日趋严重。本文综合利用多源遥感数据进行城市不透水面覆盖度(ISP)和地面温度(LST)的估算,实验结果较好地反映了城市ISP和LST的空间分布和变化状况;同时对二者之间的相关关系进行了简要分析,发现ISP与地面温度之间具有正相关关系,为通过绿化建设改善城市热环境的方法提供了理论依据。
As the rapid development of the global warming and urbanization, urban impervious surface increases suddenly and the urban heat island effect is more and more serious. Impervious surfaces percentage （ISP） and land surface temperature （LST） were esti- mated using multi-source remote sensing data in this paper. The experimental results reflected the spatial distribution and changes of ISP and LST. Furthermore, a brief analysis was made based on the estimated results, it could be concluded that the IS Phas a positive cor- relation relationshi Pwith the increase of the urban heat island effect.
出处
《测绘科学》
CSCD
北大核心
2011年第4期211-213,共3页
Science of Surveying and Mapping
关键词
多源遥感数据
下垫面
分类回归树
城市热岛
multi-source remote sensing data
underlying surface
classification and regression tree （CART）
urban heat island
