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题名: Assessment of SeaWiFS, MODIS, and MERIS ocean colour products in the South China Sea
作者: Zhao, WJ ; Wang, GQ ; Cao, WX ; Cui, TW ; Wang, GF ; Ling, JF ; Sun, L ; Zhou, W ; Sun, ZH ; Xu, ZT ; Hu, SB
通讯作者: wenjing_jingjing@163.com ; wxcao@scsio.ac.cn
刊名: INTERNATIONAL JOURNAL OF REMOTE SENSING
发表日期: 2014
卷: 35, 期:41955, 页:4252-4274
收录类别: sci
部门归属: [Zhao, W. J. ; Wang, G. Q. ; Cao, W. X. ; Wang, G. F. ; Ling, J. F. ; Zhou, W. ; Sun, Z. H. ; Xu, Z. T. ; Hu, S. B.] Univ Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou 510301, Guangdong, Peoples R China ; [Zhao, W. J. ; Wang, G. Q. ; Cao, W. X. ; Wang, G. F. ; Ling, J. F. ; Zhou, W. ; Sun, Z. H. ; Xu, Z. T. ; Hu, S. B.] Univ Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China ; [Zhao, W. J.] Guangdong Ctr Marine Resource & Dev, Guangzhou 510220, Guangdong, Peoples R China ; [Cui, T. W.] State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China ; [Sun, L.] China Meteorol Adm, Natl Satellite Meteorol Ctr, Beijing 100081, Peoples R China ; [Sun, L.] China Meteorol Adm, Key Lab Radiometr Calibrat & Validat Environm Sat, Beijing 100081, Peoples R China
项目归属: LTO
资助者: National Natural Science Foundation [41076014, 40906021, 41176035, U0933005, 41206029]; Young talents in South China Sea Institute of Oceanology [SQ201102]; Dragon Programme [5292]
摘要: The Sea-viewing Wide Field-of-view Sensor (SeaWiFS), Moderate Resolution Imaging Spectroradiometer (MODIS), and Medium Resolution Imaging Spectrometer (MERIS) remote-sensing radiometric and chlorophyll-a (chl-a) concentration products for the South China Sea (SCS) from October 2003 to May 2010 were assessed using in situ data. A strict spatiotemporal match-up method was used to minimize the temporal variability effects of atmosphere and seawater around the measurement site. A comparison of the remote-sensing reflectance (R-rs(lambda)) of the three sensors with in situ values from the open waters of the SCS showed that the mean absolute percentage difference varied from 13% to 55% in the 412-560 nm spectral range. Generally, the MERIS radiometric products exhibited higher typical uncertainties and bias than the SeaWiFS and MODIS products. The R-rs(443) to R-rs(555/551/560) band ratios of the satellite data were in good agreement with in situ observations for these sensors. The SeaWiFS, MODIS, and MERIS chl-a products overestimated in situ values by 74%, 42%, and 120%, respectively. MODIS retrieval accuracy was better than those of the other sensors, with MERIS performing the worst. When the match-up criteria were relaxed, the assessment results degraded systematically. Therefore, strict spatiotemporal match-up is recommended to minimize the possible influences of small-scale variation in geophysical properties around the measurement site. Coastal and open-sea areas in the SCS should be assessed separately because their biooptical properties are different and the results suggest different atmospheric correction problems.
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WOS记录号: WOS:000337623200021
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内容类型: 期刊论文
URI标识: http://ir.scsio.ac.cn/handle/344004/10583
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Zhao, WJ; Wang, GQ; Cao, WX; Cui, TW; Wang, GF; Ling, JF; Sun, L; Zhou, W; Sun, ZH; Xu, ZT; Hu, SB.Assessment of SeaWiFS, MODIS, and MERIS ocean colour products in the South China Sea,INTERNATIONAL JOURNAL OF REMOTE SENSING,2014,35(41955):4252-4274
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