|
|||||
|
|
| CBERS02B卫星CCD传感器数据反演陆地气溶胶 | |
| 引用本文： | 王中挺,陈良富,巩慧,高海亮.CBERS02B卫星CCD传感器数据反演陆地气溶胶[J].遥感学报,2009,13(6):1053-1066. |
| 作者姓名： | 王中挺 陈良富 巩慧 高海亮 |
| 作者单位： | 1. 环境保护部卫星环境应用中心,北京,100029;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 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. 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;国家航天局,航天遥感论证中心,北京,100101;中国科学院,研究生院,北京,100039 |
| 基金项目： | 863重大项目(编号: 2006AA06A303)和中国科学院知识创新工程重要方向项目(编号: kzcx1-yw-06-01)。 |
| 摘 要： | 研究利用CBERS02B卫星的CCD传感器数据反演陆地气溶胶的方法。采用的方法是暗像元法。具体步骤为: 根据地面采集的植被光谱数据, 结合CCD传感器特点, 建立浓密植被(暗像元)红蓝波段(CCD传感器的第三和第一波段)反射率与地表反射率之间的关系, 确定了暗像元识别的阈值, 讨论气溶胶光学厚度对暗像元识别的影响以及消除这种影响的方法; 利用6S进行辐射传输运算, 构建查找表; 根据CBERS02B卫星的CCD传感器数据, 从查找表插值得到气溶胶光学厚度, 并进行了算法的误差分析。用广西南宁市及北京地区附近的两景数据进行了实际的反演试验, 使用MODIS的气溶胶产品与反演结果进行比对。结果显示, CBERS02B卫星的CCD传感器数据能够较好的反演陆地气溶胶。 |
| 关 键 词： | 遥感 CBERS02B 陆地气溶胶 暗像元 |
| 收稿时间： | 2008/2/27 0:00:00 |
| 修稿时间： | 9/1/2008 12:00:00 AM |
Modified DDV method of aerosol optical depth inversion over land surfaces from CBERS02B |
|
| WANG Zhong-ting,CHEN Liang-fu,GONG Hui and GAO Hai-liang.Modified DDV method of aerosol optical depth inversion over land surfaces from CBERS02B[J].Journal of Remote Sensing,2009,13(6):1053-1066. | |
| Authors: | WANG Zhong-ting CHEN Liang-fu GONG Hui and GAO Hai-liang |
| Affiliation: | 1. Satellite Environment Center, Ministry of Environmental Protection, Beijing 100029, China; 2. China State Key Laboratory of Remote Sensing Science, Jointly Sponsored by the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Bei;2. China 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;;2. China 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; 3. Demonstration Center for Spaceborne Remote S;2. China 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; 3. Demonstration Center for Spaceborne Remote S |
| Abstract: | In this paper, the retrieval of AOD (aerosol optical depth) over land surfaces from CCD (Charge Coupled Device) data of CBERS (China Brazil Earth Resources Satellite) 02B was studied. The inversive method is modified DDV (dark dense vegetation) algorithm: (1) based on the spectral data of vegetation and the characteristics of the CCD sensor, the relationship between blue and red band surface reflectances and the NDVI (Normalized Difference Vegetation Index) thresholds for dense vegetation (dark pixel) were worked out, and the atmospheric effect and its correction were also analyzed. (2) The LUT (look up table) for different bands was pre-computed using the 6S atmospheric radiative transfer code. (3) The AODs was retrieved through interpolating in LUT in accordance with radiances obtained by CCD, and the errors of this modified DDV method was also analyzed and discussed. Finally, the modified DDV method was successfully applied to Nanning and Beijing areas. The comparison of the retrieved AODs with those of MODIS shows a good agreement. |
| Keywords: | remote sensing CBERS02B aerosol optical depth over land surfaces dark dense vegetation |
| 本文献已被 万方数据 等数据库收录！ | |
| 点击此处可从《遥感学报》浏览原始摘要信息 | |
| 点击此处可从《遥感学报》下载全文 | |
