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| HJ-1/CCD地表反照率估算及其与NDVI关系分析 | |
| 引用本文： | 李慧芳,袁占良,余涛,李家国,米晓飞,刘其悦,魏占营.HJ-1/CCD地表反照率估算及其与NDVI关系分析[J].遥感信息,2012,27(4):16-21. |
| 作者姓名： | 李慧芳 袁占良 余涛 李家国 米晓飞 刘其悦 魏占营 |
| 作者单位： | 1. 河南理工大学测绘与国土信息工程学院,焦作454003;中国科学院遥感应用研究所,遥感科学国家重点实验室,北京100101;国家航天局航天遥感论证中心,北京100101 2. 河南理工大学测绘与国土信息工程学院,焦作,454003 3. 中国科学院遥感应用研究所,遥感科学国家重点实验室,北京100101;国家航天局航天遥感论证中心,北京100101 4. 中国测绘科学研究院,北京,100830 |
| 基金项目： | 国家自然科学基金面上项目，科技部国际科技合作计划资助，中匈政府间科技合作项目;国科外字[2008]333号，国家高技术研究发展计划(863计划) |
| 摘 要： | 参照TM地表反照率反演算法,建立了适用于HJ-1/CCD传感器估算地表反照率的算法。通过应用6S辐射传输模型建立查找表,对覆盖内蒙古自治区锡林浩特市的HJ-1/CCD数据进行大气校正,并根据反照率定义,回归分析得到可见光波段地表反照率;通过与地面实测数据进行对比分析,表明该算法估算得到的地表反照率精度较高,其最大相对误差为14.32%。同时,本文将估算结果与同时期NDVI进行拟合分析,得出地表反照率与NDVI存在较高的负相关关系。 |
| 关 键 词： | HJ-1 6S 大气校正 地表反照率 NDVI |
Surface Albedo Estimating Based on HJ-1/CCD and Relationship Analysis Between Albedo and NDVI |
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| LI Hui-fang , YUAN Zhan-liang , YU Tao , LI Jia-guo , MI Xiao-fei , LIU Qi-yue , WEI Zhan-ying.Surface Albedo Estimating Based on HJ-1/CCD and Relationship Analysis Between Albedo and NDVI[J].Remote Sensing Information,2012,27(4):16-21. | |
| Authors: | LI Hui-fang YUAN Zhan-liang YU Tao LI Jia-guo MI Xiao-fei LIU Qi-yue WEI Zhan-ying |
| Affiliation: | (① School of Surveying ＆ Land Information Engineering,Henan Polytechnic University,Jiaozuo 454003;② State Key Laboratory of Remote Sensing Science,Institute of Remote Sensing Applications,CAS,Beijing 100101;③ Demonstration Center for Spaceborne Remote Sensing Institute of Remote Sensing Applications,Chinese Academyof Sciences,Beijing 100101;④ Chinese Academy of Surveying ＆ Mapping,Beijing 100830) |
| Abstract: | Referring to TM surface albedo inversion algorithm,the surface albedo estimating algorithm for HJ-1/CCD sensor is established.With look-up table build based on 6S radiative transfer model,we completed the atmospheric correction of CCD images,covering Xilinhot in Inner Mongolia Autonomous Region.According to the definition of albedo,the surface albedo of visible band can be obtained by regression analysis.Through comparison and analysis with the ground measured data,it shows that this approach can estimate surface albedo with high-precision and the maximum relative error is 14.32%.Furthermore,it demonstrated that there is a higher negative correlation between NDVI and albedo by fitting analysis. |
| Keywords: | HJ-1 6S atmospheric correction albedo NDVI |
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