A new approach for atmospheric correction of MODIS imagery in turbid coastal waters: a case study for the Pearl River Estuary

CORC > 南海海洋研究所 > 中国科学院南海海洋研究所 > 热带海洋环境国家重点实验室(LTO)

	A new approach for atmospheric correction of MODIS imagery in turbid coastal waters: a case study for the Pearl River Estuary
	He, QJ ; Chen, CQ
刊名	REMOTE SENSING LETTERS
	2014
卷号	5 期号:3 页码:249-257
ISSN号	2150-704X
通讯作者	cqchen@scsio.ac.cn
中文摘要	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.
学科主题	Remote Sensing ; Imaging Science & Photographic Technology
收录类别	SCI
资助信息	National Scientific Support Program [2012BAH32B01]; Guangdong Province [2011498B11]; National 863 Program [2009AA12Z135]; National Natural Science Foundation of China [40976106, 41276182]
原文出处	TAYLOR & FRANCIS LTD
WOS记录号	WOS:000334040100006
公开日期	2014-12-11
内容类型	期刊论文
源URL	[http://ir.scsio.ac.cn/handle/344004/10565]
专题	南海海洋研究所_热带海洋环境国家重点实验室(LTO)
推荐引用方式 GB/T 7714	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[J]. REMOTE SENSING LETTERS,2014,5(3):249-257.
APA	He, QJ,&Chen, CQ.(2014).A new approach for atmospheric correction of MODIS imagery in turbid coastal waters: a case study for the Pearl River Estuary.REMOTE SENSING LETTERS,5(3),249-257.
MLA	He, QJ,et al."A new approach for atmospheric correction of MODIS imagery in turbid coastal waters: a case study for the Pearl River Estuary".REMOTE SENSING LETTERS 5.3(2014):249-257.