【摘要】 基于Landsat遥感卫星影像反演济南市四个年份的地表温度,归一化处理后得到地表温度等级分布图,使用ENVI软件提取研究区各年份植被和不透水面等地表参数,分析相关地表参数的时空变化及其热岛效应特征响应和主要影响因素。结果表明:济南中心城区各地表参数在过去20余年间发生了较大变化,这些变化对城市热岛效应产生了重要影响并呈现关联形式,而植被覆盖面对地表温度变化的影响程度比不透水面更为明显。在此基础上提出一些城市规划管理措施以缓解热岛效应。更多还原

【Abstract】 By use of Landsat remote sensing satellite image,the land surface temperatures of Jinan in 1988,2000,2006 and 2014 were inversed.Then the grade distribution map was made based on the data which has been through normalized processing.ENVI software was used to extract surface parameters of vegetation and impervious surface for each year.Based on all the information,the characteristics of heat island effect and its main factors were analyzed.Results show that surface parameters of Jinan city center had changed greatly from 1988 to 2014.These changes had affected heat island effect greatly.In addition,vegetation coverage could exert much greater influences on surface temperature than impervious surface.In order to reduce the impact of island effect,Urban planning management measures must be taken according to the above-mentioned data.更多还原