| 利用MODIS数据监测北京地区气溶胶 |
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| 引用本文： | 王中挺,陈良富,张莹,韩冬,顾行发. 利用MODIS数据监测北京地区气溶胶[J]. 遥感技术与应用, 2008, 23(3): 284-288. DOI: 10.11873/j.issn.1004-0323.2008.3.284 |
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| 作者姓名： | 王中挺 陈良富 张莹 韩冬 顾行发 |
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| 作者单位： | （1.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;;2.国家航天局航天遥感论证中心, 北京 100101;3.中国科学院研究生院,北京 100039 ） |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 采用暗像元法对北京地区的气溶胶进行了监测：以2005~2007年的MODIS 1B数据为数据源，使用6S进行辐射传输计算构建查找表，进行气溶胶光学厚度的反演，并使用AERONET数据对结果进行验证，对冬季和夏季的监测结果进行了比较。结果表明，该算法能够较好地监测气溶胶，反映城市气溶胶的区域变化；但冬季时的监测结果要远远差于夏季，很难满足气溶胶监测需求。
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| 关 键 词： | MODIS 气溶胶 北京 暗目标 |
Urban Surface Aerosol Monitoring Using DDV Method from MODIS Data |
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| WANG Zhong-ting,CHEN Liang-fu,ZHANG Ying,HAN Dong,GU Xing-fa. Urban Surface Aerosol Monitoring Using DDV Method from MODIS Data[J]. Remote Sensing Technology and Application, 2008, 23(3): 284-288. DOI: 10.11873/j.issn.1004-0323.2008.3.284 |
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| Authors: | WANG Zhong-ting CHEN Liang-fu ZHANG Ying HAN Dong GU Xing-fa |
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| Affiliation: | (1.State Key Laboratory of Remote Sensing Science,Jointly Sponsored by the Institute of the Institute of Remote Sensing Applications of Chinese Academy of Sciences and Beijing Normal University,Beijing 100101, China ;2.Demonstration Center for Spaceborne Remote Sensing, National Space Administration, Beijing 100101, China|3.Graduate University of Chinese Academy of Sciences,Beijing 100039,China) |
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| Abstract: | Taking Beijing area as an example,the aurban surface aerosol optic thickness has been tried to retrieve using DDV (Dark Dense Vegetation) method from MODIS level1B data. Firstly, the LUT (Look Up Table) is built by 6S, the dark dense pixel is checked based on NDVI and the retrieved AOD (Aerosol Optical Depth) is validated using the CE318 measurements from AERONET (Aerosol Robotic NETwork). The results show the DDV method can be used to monitor the urban aerosol very well during the summer and autumn in Beijing, but it losses its power in the winter. |
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| Keywords: | MODISzz Aerosolzz Beijingzz Dark dense vegetationzz |
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