地表温度是很多环境评价模型的一个重要参数，在大气与地表能量与物质的交换，温室效应、气候变化、天气预报等领域发挥着重要的作用和积极的意义，其在温室效应的研究中也发挥着积极的意义。针对现有的覃志豪的单窗算法和单通道算法进行地表温度的反演时，在应用历史存档数据时，影像成像时的大气参数无法实测，对反演结果精度造成影响。本文通过利用大气校正辐射传输方程法对南京市地表温度进行反演工作，并从时间和空间角度进行定向分析，得到南京市地表温度遥感定量反演及其时空格局的变化。首先，基于ENVI软件平台运用大气校正辐射传输方程法，该方法以卫星数据Landsat作为原始图像从而利用热红外遥感波段获取的大范围地表温度分部信息。然后以江苏省会南京为实例，进行城市温度遥感反演的工作，进而分析南京温度分布的模式以及南京城市的热岛效应。接着对南京城市热岛效应与城市土地覆盖类型和人文地理之间的关系进行研究，最后以空间和时间为尺度，分析江苏南京热岛效应的变化趋势，并提出一系列缓解城市热岛效应的方案。研究结果表明南京各地区的地表温度存在着正态分布，并且主要是以较高温区为主。从空间分布的角度来看，南京市的低温区主要集中于水体部分，高温区主要集中于城市地区以及裸地，并且地表温度由几何中心向城市的边缘程呈递减的趋势。从时间的角度来说南京的较高温地区在不断扩大，城市的范围在向东南方向拓展，并且城市的几何中心的温度有所升高。 43633
毕业论文关键词：南京市 地表温度反演 空间变化
The Land Surface Temperature and Spatial-temporal Pattern of Nanjing
Abstract
With the rising of global temperature, the urban heat island effect is more significant, the subtle influence to all aspects of the human. And the surface temperature is an important parameter of many environmental model, in the atmosphere and the surface energy and material exchange, climate change, weather forecasting and play an important role in other fields. Today's remote sensing technology has become the contemporary geographical information system is an important technical means. Remote sensing of land surface temperature inversion have many methods. This paper through the comparison and study of several different surface temperature algorithm, we have found that each algorithm has its different features. Then based on ENVI software platform using the atmospheric correction method, the method to Landsat satellite data as the original image by using the thermal infrared remote sensing bands for a wide range of surface temperatures of the pision information. And the will of Nanjing in Jiangsu province as an example, carries on the urban temperature remote sensing inversion of work, then analysis model of temperature distribution in Nanjing and Nanjing city heat island effect. And then to the Nanjing urban heat island effect and urban land cover types and the relationship between the human geography study, the last time as scale, analysis the change trend of Jiangsu Nanjing heat island effect, and puts forward a series of solutions to alleviate urban heat island effect.
Key Words: Nanjing Land Surface Temperature Spatial-temporal Pattern
目录
摘要 Ⅰ
Abstract Ⅱ
图清单 Ⅳ
表清单 Ⅳ
1绪论 1
1.1研究目的意义 1
2.研究区与数据源 南京市地表温度遥感定量反演及其时空格局分析:http://www.751com.cn/wuli/lunwen_44557.html