基于Landsat TM的澳门城市热场影响因素分析  

Landsat TM-Based Factor Analysis of Urban Thermal Field in Macao

作　　者：米金套[1] 王志石[2] 何平[1] 

机构地区：[1]北京林业大学林学院,北京100083 [2]澳门大学科技学院,澳门999078

出　　处：《生态与农村环境学报》2009年第3期94-98,共5页Journal of Ecology and Rural Environment

摘　　要：利用2004年10月19日Landsat TM数据提取澳门城区城市用地类型信息,反演城市地表温度,在此基础上通过主成分回归方法分析澳门城市热场的影响因素。结果表明,澳门城市热场受到硬化地表指数的影响较大,其次为植被比例。地表温度与硬化地表指数、道路密度呈显著正相关(P<0.05),与归一化植被指数、植被比例及水体比例呈显著负相关(P<0.05)。Along with development of urbanization, urban thermal field （ or urban thermal environment ） is changing accordingly as function of numerous factors. One of the changes is the so-called urban heat island effect. To analyze geographical information related to urban land-use types in Macao and to extract data on urban surface temperature as well as urban impermeable surface, GIS and RS were used. Based on the Landsat TM data collected on October 19, 2004, factors influencing urban thermal field were studied by the principal component regression method. Results show that the urban thermal field in Macao was greatly affected by impervious surface index, and surface temperature was positively correlated with impervious surface index and road density （ P〈0.05 ） , while negatively correlated with vegetation index, vegetation cover and proportion of waterbody（P〈0.05 ）.

关 键 词：LANDSAT TM 城市热场 硬化地表 主成分回归 澳门 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]