| 利用不同地表比辐射率对ETM＋数据地表温度反演对比研究 |
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| 引用本文： | 苏建云.利用不同地表比辐射率对ETM＋数据地表温度反演对比研究[J].北京测绘,2012(6):28-33. |
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| 作者姓名： | 苏建云 |
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| 作者单位： | 泉州师范学院资源与环境科学学院,福建泉州,362000 |
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| 基金项目： | 福建省创新项目，福建省泉州市科技项目 |
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| 摘 要： | 地表温度作为研究环境生态影响的一个重要指标之一,以Landsat ETM+的热红外波段作为数据源,辅助大气透过率、大气平均气温等参数,利用单窗算法基于混合像元、NDVI、植被和裸露地三种不同地表比辐射率反演泉州市地表温度,对比分析结果表明采用这三种地表比辐射率反演地表温度的方法均是可行的,对于具体采用哪一种地表比辐射率应需要结合实际的研究区域地表地物的实际监测地表温度进行对比后,方可选择合适的地表比辐射率进行地表温度反演,会更具实际意义。反演结果可为城市热岛效应等研究提供支持数据源。
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| 关 键 词： | 温度反演 单窗算法 归一化植被指数 地表比辐射率 |
Using the Different Land Surface Emissivity to the ETM+ Data Surface Temperature Inversion Contrast Research |
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| SU Jian-yun.Using the Different Land Surface Emissivity to the ETM+ Data Surface Temperature Inversion Contrast Research[J].Beijing Surveying and Mapping,2012(6):28-33. |
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| Authors: | SU Jian-yun |
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| Institution: | SU Jian-yun(College of Resources and Environment Science,Quanzhou Normal University,Quanzhou,Fujian 362000,China) |
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| Abstract: | The surface temperature as the research environment ecology influence one of important targets,takes the data pool by the Landsat ETM＋ heat infrared wave band,auxiliary parameters atmospheric transmissibility,atmospheric average temperature and so on,using the single-channel algorithm based on the mix pixel,NDVI,the vegetation and the exposed three kind of different surfaces compared to the emissivity inversion Quanzhou surface temperature,the contrast analysis result indicated using these three kind of land surface emissivity inversion surface temperature method is feasible,which one kind of surface after uses to be supposed specifically to need to unify the actual research region land surface emissivity the actual surface temperature monitoring result to carry on the contrast only then to choose the appropriate surface to carry on the surface temperature inversion compared to the land surface emissivity can have the practical significance.Inversion results support data source for the study of the urban heat island effect. |
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| Keywords: | temperature inversion single-channel algorithm NDVI land surface emissivity |
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