An algorithm to retrieve absorption coefficient of chromophoric dissolved organic matter from ocean color

CORC > 厦门大学 > 海洋环境－已发表论文

	An algorithm to retrieve absorption coefficient of chromophoric dissolved organic matter from ocean color
	Dong, Q. ; Shang, S. L. ; Lee, Z. ; Shang SL(商少凌)
刊名	http://dx.doi.org/10.1016/j.rse.2012.10.013
	2013-01
关键词	Chromophoric dissolved organic matter Absorption coefficient Algorithm Quasi-analytical algorithm Remote sensing
英文摘要	We extended the quasi-analytical algorithm (QAA) architecture to analytically derive absorption coefficient of chromophoric dissolved organic matter (a(g)). Specifically, we used an empirical formula based on total absorption and particle backscattering coefficients to estimate and then remove detritus absorption coefficient (a(d)), and developed a scheme to use absorption coefficients at three wavelengths (412,443, and 490 nm) for the separation of a(g) and a(ph) (absorption coefficient of phytoplankton). The algorithm was tested using an in situ data set collected in the South China Sea and the Taiwan Strait and a global in situ data set the NASA Bio-Optical Marine Algorithm Data set (NOMAD). Our results indicated that this new analytical algorithm for retrieving a(g) performed reasonably well with a mean absolute percentage error of approximately 45% for a(g)(412), while it also presented a satisfactory performance for a(ph) and a(d) in both coastal and oceanic waters. Furthermore, the applicability of this new algorithm for general oceanographic studies was briefly illustrated by applying it to MODIS measurements over the Taiwan Strait and the shelf region near the Mississippi River delta. Nevertheless, more independent tests with in situ and satellite data are needed to further validate and improve this innovative approach. (C) 2012 Elsevier Inc. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/60164]
专题	海洋环境－已发表论文
推荐引用方式 GB/T 7714	Dong, Q.,Shang, S. L.,Lee, Z.,et al. An algorithm to retrieve absorption coefficient of chromophoric dissolved organic matter from ocean color[J]. http://dx.doi.org/10.1016/j.rse.2012.10.013,2013.
APA	Dong, Q.,Shang, S. L.,Lee, Z.,&商少凌.(2013).An algorithm to retrieve absorption coefficient of chromophoric dissolved organic matter from ocean color.http://dx.doi.org/10.1016/j.rse.2012.10.013.
MLA	Dong, Q.,et al."An algorithm to retrieve absorption coefficient of chromophoric dissolved organic matter from ocean color".http://dx.doi.org/10.1016/j.rse.2012.10.013 (2013).