Validation of a Quasi-Analytical Algorithm for Highly Turbid Eutrophic Water of Meiliang Bay in Taihu Lake, China
Validation of a Quasi-Analytical Algorithm for Highly Turbid Eutrophic Water of Meiliang Bay in Taihu Lake, China
复制标题
中国太湖梅梁湾高浑浊富营养化水体准解析算法的验证
DOI：
10.1109/tgrs.2009.2015658
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发表时间：
2009-04
影响因子：
8.2
通讯作者：
Bin Yin
中科院分区：
文献类型：
--
作者：
Cheng Feng Le;Yong Zha;Yun Mei Li;Deyong Sun;Bin Yin
在许多水文学研究和应用中，需要了解水体的吸收特性。为了从遥感反射率中提取水体的这一固有光学特性，对太湖中国段的高浑浊水体进行了多波段准解析算法的标定和验证。首先利用2007年11月8日从太湖梅梁湾采集的一个数据集对该区域的区域QAA算法进行了校准，然后使用2006年8月22日和2008年11月10日从同一区域收集的另外两个独立的数据集进一步验证了该算法的有效性。通过将反射率波长从红区转移到近红外区域，本地QAA算法对这一高混浊水体具有很好的效果，对于2007年的数据集，所有13个样本的吸收系数与实测吸收系数的百分比误差都在20%以内，而且大部分都在10%以下。区域校正算法对2008年的数据集也有很好的吸收效果。然而，局部算法的性能也具有各种季节性特征。它未能推导出2006年8月的数据集的吸收系数，除非将参考波长转移到更长的波长。本文指出，在不同光学性质的水域使用QAA算法时，必须考虑季节和区域信息。
In many hydrological studies and applications, it is desirable to know the absorption property of water bodies. In order to derive this inherent optical property of waters from remote sensing reflectance, a multiband quasi-analytical algorithm (QAA) was calibrated and validated for the highly turbid water of Taihu Lake in China. A data set collected on November 8, 2007, from Meiliang Bay of Lake Taihu was first used to calibrate a regional QAA algorithm for this area, and other two independent data sets, which were collected on August 22, 2006, and November 10, 2008, from the same area, were used to further validate the local algorithm. By shifting the reflectance wavelength from the red region to near infrared, the local QAA algorithm works well for this highly turbid water, the percent difference between the derived and measured absorption coefficients is less than 20% for all 13 samples in the data set of 2007, and most of them are less than 10%. The regional calibrated algorithm also has great result in deriving the absorption for the data set of 2008. However, the performance of the local algorithm also has various seasonal properties. It failed in deriving absorption for the data set of August 2006, unless the reference wavelength is shifted to even more long ones. It has been suggested in this paper that the seasonal and regional information is necessary for using the QAA algorithm in different optical property waters.
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影响因子：
3.4
作者：
S. Sathyendranath;L. Prieur;A. Morel
通讯作者：
S. Sathyendranath;L. Prieur;A. Morel
影响因子：
3.6
作者：
MOREL, A
通讯作者：
MOREL, A
影响因子：
4.5
作者：
P. Zimba;A. Gitelson
通讯作者：
P. Zimba;A. Gitelson
影响因子：
1.9
作者：
H. Loisel;D. Stramski
通讯作者：
H. Loisel;D. Stramski
DOI：
10.1016/j.jphotobiol.2005.04.006
发表时间：
2005-09
期刊：
Journal of photochemistry and photobiology. B, Biology
影响因子：
--
作者：
Luca Bracchini;A. Dattilo;M. Falcucci;S. Loiselle;V. Hull;C. Arena;C. Rossi
通讯作者：
Luca Bracchini;A. Dattilo;M. Falcucci;S. Loiselle;V. Hull;C. Arena;C. Rossi