Validation of MERIS Case-2 Water Products in Lake Taihu, China

Validation of MERIS Case-2 Water Products in Lake Taihu, China
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中国太湖 MERIS 案例 2 水产品验证

DOI:
10.2747/1548-1603.49.6.873
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发表时间:
2012-11
影响因子:
6.7
通讯作者:
Zhang, Yuanzhi
Zhang, Yuanzhi
中科院分区:
地球科学2区
文献类型:
--
作者:
Duan, Hongtao;Ma, Ronghua;Simis, Stefan G. H.;Zhang, Yuanzhi

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三个人工神经网络(ANN)处理器可作为基本ERS & ENVISAT(A)ATSR和MERIS ATSR(BEAM)的插件模块在中国太湖进行验证。从湖泊\北方和湖泊\富营养化的反射率的平均偏差为10- 90%,而反射率从FUB-WeW处理器显示出较大的误差。所有处理器显示低估的叶绿素a(Chl-a),总悬浮物(TSM),浮游植物色素吸收,而颗粒物散射值严重高估。没有现成的MERIS处理器目前能够分离大气和离开太湖的辐射,而通过人工神经网络处理器的浮游植物生物量的检索显示出希望。
Three artificial neural network (ANN) processors available as plug-in modules for the Basic ERS & ENVISAT (A)ATSR and MERIS Toolbox (BEAM) were validated in Lake Taihu, China. Mean deviations of reflectance derived from Lakes\Boreal and Lakes\Eutrophic were 10-90%, while reflectance from the FUB-WeW processor showed larger errors. All processors showed underestimates of chlorophyll a (Chl-a), total suspended matter (TSM), and phytoplankton pigment absorption, while particulate scattering values were severely overestimated. None of the readily available MERIS processors is currently able to separate atmospheric and water-leaving radiance over Lake Taihu, while the retrieval of phytoplankton biomass through ANN processors shows promise.
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发表时间: 2007-02-01
影响因子: 3.4
作者:
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