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| MODIS辐照度法定标试验研究 | |
| 引用本文： | 巩慧,田国良,余涛,张玉香,顾行发,高海亮.MODIS辐照度法定标试验研究[J].遥感学报,2010,14(2):213-224. |
| 作者姓名： | 巩慧 田国良 余涛 张玉香 顾行发 高海亮 |
| 作者单位： | 1. 遥感科学国家重点实验室,中国科学院,遥感应用研究所,北京,100101;北京交通大学土建学院,北京,100044 2. 遥感科学国家重点实验室,中国科学院,遥感应用研究所,北京,100101 3. 中国气象局国家卫星气象中心,北京,100081 |
| 基金项目： | 国家863无场地定标关键技术项目(编号: 2006AA12Z113)。 |
| 摘 要： | 利用内蒙古二连浩特实验场对Terra卫星MODIS传感器开展辐照度基定标方法研究。定标结果表明,辐照度法定标系数和MODIS的星上定标、反射率基法定标系数非常接近,相对差异3.3%,证明辐照度基定标方法正确。定标系数之间的差异说明,漫射辐射与总辐射辐照度比测量的精度对辐照度法结果影响很关键。不同气溶胶模式下得到的结果说明辐照度法可以减小因气溶胶模式的假设产生的误差。 |
| 关 键 词： | 辐射定标 定标系数 辐照度基法 MODIS |
| 收稿时间： | 2008/9/24 0:00:00 |
| 修稿时间： | 2009/2/10 0:00:00 |
Irradiance-based calibration and validation of MODIS visible and near-infrared channels |
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| GONG Hui,TIAN Guo-liang,YU Tao,ZHANG Yuxiang,GU Xingfa and GAO Hailiang.Irradiance-based calibration and validation of MODIS visible and near-infrared channels[J].Journal of Remote Sensing,2010,14(2):213-224. | |
| Authors: | GONG Hui TIAN Guo-liang YU Tao ZHANG Yuxiang GU Xingfa and GAO Hailiang |
| Institution: | 1. State Key Laboratory of Remote Sensing, Institute of Remote Sensing Applications, Chinese Academy of Science,Beijing 100101, China; 2. School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China;1. State Key Laboratory of Remote Sensing, Institute of Remote Sensing Applications, Chinese Academy of Science, Beijing 100101, China;1. State Key Laboratory of Remote Sensing, Institute of Remote Sensing Applications, Chinese Academy of Science, Beijing 100101, China;3. National Satellite Meteorological Center, China Meteorological Administration, Beijing 100081, China;1. State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University, Beijing 100101, China;1. State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University, Beijing 100101, China |
| Abstract: | Radiometric calibration is the key of improving quality and quantitative applications of the remote sense data. A ir-radiance-based radiometric calibration campaign was performed by National Spaceborne Demonstration at the Erenhot test site on June 1, 2007, in which Terra MODIS was the object. It showed that the irradiance-based calibration results were in good agreement with both the MODIS on-board calibration and reflectance-based calibration results with the variations less than 3.3% at the site. It was concluded that the irradiance-based calibration method was performed correctly, while the differences among the coefficients showed that the measurement of the ratio of diffuse-to-global ratio has crucial impact on results of irradi-ance-based calibration. The results from different aerosol modes confirmed that the irradiance-based radiometric calibration can reduce the error caused by the assumption of the aerosol mode. |
| Keywords: | radiometric calibration calibration coefficient irradiance-based method MODIS |
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