| 中巴地球资源02星CCD图像交叉定标与大气校正研究 |
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| 引用本文： | 彭光雄,何宇华,李京,陈云浩,林文娟.中巴地球资源02星CCD图像交叉定标与大气校正研究[J].红外与毫米波学报,2007,26(1):22-25,34. |
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| 作者姓名： | 彭光雄 何宇华 李京 陈云浩 林文娟 |
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| 作者单位： | 1. 北京师范大学资源学院资源技术与工程研究所,北京,100875
2. 中国土地勘测规划院,北京,100037 |
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| 基金项目： | 国产中巴卫星遥感数据应用研究(05-1.10.1)，国家自然科基金“城市地表能量收支与人为热排放的遥感研究”(40671130)、“多源遥感数据像素级融合的统一理论框架”(40671122) |
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| 摘 要： | 利用LANDSAT-5的TM对CBERS-2的CCD 1-4波段进行交叉定标,得到了CCD 1-4波段的参考辐射定标系数,并对这组定标系数进行了验证.利用6S模型和同步气象资料,对CBERS-2的CCD数据,进行了大气校正和反射率反演.最后对CCD 1-4波段大气校正前后的反射率和归一化植被指数(NDVI)的变化进行了对比研究.发现大气校正后的CCD3和CCD4波段的地面反射率明显升高,大气校正后的CCD图像呈现出高植被覆盖区NDVI增大,低植被覆盖区NDVI减小的趋势.
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| 关 键 词： | 交叉定标 大气校正 6S模型 CBERS-2 |
| 文章编号： | 1001-9014（2007）01-0022-05 |
| 收稿时间： | 2006-03-30 |
| 修稿时间： | 2006-03-302006-11-03 |
STUDY ON CBERS-2's CCD IMAGE CROSS CALIBRATION AND ATMOSPHERIC CORRECTION |
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| PENG Guang-Xiong,HE Yu-Hu,LI Jing,CHEN Yun-Hao,LIN Wen-Juan.STUDY ON CBERS-2''s CCD IMAGE CROSS CALIBRATION AND ATMOSPHERIC CORRECTION[J].Journal of Infrared and Millimeter Waves,2007,26(1):22-25,34. |
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| Authors: | PENG Guang-Xiong HE Yu-Hu LI Jing CHEN Yun-Hao LIN Wen-Juan |
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| Affiliation: | 1. College of Resources Science and Technology, Beijing Normal University, Beijing 100875, China; 2. China Land Survey and Planning Institute, Beijing 100037, China |
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| Abstract: | A group of reference calibration coefficients for CBERS-2's CCD data were provided by cross calibration method by using LANDSAT5 TM data.The validation for the cross calibration shows its feasibility.A method,which is based on 6S model and isochronous meteorological information on sensing time,was used in the atmospheric correction of CBERS-2's CCD four bands.Validation analysis was conducted by comparisons of corrected and uncorrected reflectance data including normalized difference vegetation index(NDVI).It finds that the corrected reflectance of CCD3 and CCD4 increases clearly and the NDVI of vegetation ascends while the NDVI of nonvegetation descends. |
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| Keywords: | cross calibration atmospheric correction 6S model CBERS-2 |
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