An algorithm to retrieve absorption coefficient of chromophoric dissolved organic matter from ocean color
An algorithm to retrieve absorption coefficient of chromophoric dissolved organic matter from ocean color
复制标题
从海洋颜色反演发色溶解有机物吸收系数的算法
DOI:
10.1016/j.rse.2012.10.013
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发表时间:
2013-01
影响因子:
13.5
通讯作者:
Zhongping Lee
中科院分区:
文献类型:
--
作者:
Qiang Dong;Shaoling Shang;Zhongping Lee
We extended the quasi-analytical algorithm (QAA) architecture to analytically derive absorption coefficient of chromophoric dissolved organic matter (ag). Specifically, we used an empirical formula based on total absorption and particle backscattering coefficients to estimate and then remove detritus absorption coefficient (ad), and developed a scheme to use absorption coefficients at three wavelengths (412, 443, and 490nm) for the separation of agand aph(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 agperformed reasonably well with a mean absolute percentage error of approximately 45% for ag(412), while it also presented a satisfactory performance for aphand adin 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.
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影响因子:
5.2
作者:
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通讯作者:
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影响因子:
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DOI:
10.1016/b978-0-12-323841-2.x5000-3
发表时间:
2002
期刊:
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影响因子:
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作者:
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S. Tassan;G. Ferrari
DOI:
--
发表时间:
1994-12
期刊:
--
影响因子:
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作者:
Z. Lee
通讯作者:
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