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学科主题: Remote Sensing ; Imaging Science & Photographic Technology
题名: A new approach for atmospheric correction of MODIS imagery in turbid coastal waters: a case study for the Pearl River Estuary
作者: He, QJ ; Chen, CQ
通讯作者: cqchen@scsio.ac.cn
刊名: REMOTE SENSING LETTERS
发表日期: 2014
卷: 5, 期:3, 页:249-257
收录类别: sci
部门归属: [He, Quanjun ; Chen, Chuqun] Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China ; [He, Quanjun] Guangdong Prov Meteorol Bur, Guangzhou Meteorol Satellite Ground Stn, Guangzhou, Guangdong, Peoples R China ; [He, Quanjun] Univ Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
项目归属: LTO
资助者: National Scientific Support Program [2012BAH32B01]; Guangdong Province [2011498B11]; National 863 Program [2009AA12Z135]; National Natural Science Foundation of China [40976106, 41276182]
摘要: The algorithms for atmospheric correction (AC) of Moderate Resolution Imaging Spectroradiometer (MODIS) data may yield negative water-leaving radiances in highly turbid coastal waters along the Pearl River Estuary of China. This failure of AC can be attributed to the high reflectance from the suspended sediments in the near-infrared (NIR) bands, which results in an overestimate of the aerosol scattering and hence overcorrection in the visible bands. In this letter, a new shortwave infrared extrapolation (SWIRE) method is presented for Terra-MODIS data. The Rayleigh-corrected reflectances in the SWIR bands (1.24, 1.64, and 2.13 mu m) are used to determine an exponential function with respect to wavelength, which is used to correct the NIR bands (0.748 and 0.869 mu m) for sediment scattering and hence estimate the aerosol scattering reflectances in these bands. Then the Gordon and Wang AC approach is applied. The performance of this new SWIRE algorithm is demonstrated using two examples centred on the Pearl River Estuary, with the results showing that the new approach can improve the AC for these turbid waters.
原文出处: 查看原文
WOS记录号: WOS:000334040100006
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10565
Appears in Collections:热带海洋环境国家重点实验室(LTO)_期刊论文

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Recommended Citation:
He, QJ; Chen, CQ.A new approach for atmospheric correction of MODIS imagery in turbid coastal waters: a case study for the Pearl River Estuary,REMOTE SENSING LETTERS,2014,5(3):249-257
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