气候变化领域集成服务门户(CCPortal): The impact of sea bottom effects on the retrieval of water constituent concentrations from MERIS and OLCI images in shallow tidal waters supported by radiative transfer modeling

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DOI	10.1016/j.rse.2019.111596
	The impact of sea bottom effects on the retrieval of water constituent concentrations from MERIS and OLCI images in shallow tidal waters supported by radiative transfer modeling
	Arabi B.; Salama M.S.; van der Wal D.; Pitarch J.; Verhoef W.
发表日期	2020
ISSN	00344257
卷号	237
英文摘要	Many coastal waters include large areas of Optically Shallow Waters (OSWs) where the sea-bottom affects above-water observations of remote sensing reflectance (Rrs [sr− 1]). If not treated, the effect of bottom reflectance will interfere with the correct retrieval of Water Constituent Concentrations (WCCs) from hyperspectral and multispectral remote sensing observations. To study this phenomenon in more detail, the existing semi-infinite 2SeaColour Radiative Transfer (RT) model was modified into a finite water layer model, bounded by a diffusely reflecting surface at the sea-bottom. From simulations with the new model, called Water - Sea Bottom (WSB) model, it was observed that a ratio of spectral bands in the Near-Infrared, bands 750 nm and 900 nm, is nearly insensitive to the WCCs and increases with the shallowness of the water, and therefore can be used as a robust index to detect OSWs. The newly established Near-Infrared Bottom Effect Index (NIBEI) was applied to a series of satellite observations over the Wadden Sea during high and low tidal phases. Images from the MEdium Resolution Imaging Spectrometer (MERIS) and the Ocean and Land Colour Instrument (OLCI) were processed to retrieve WCCs of the study area. The results indicate that the sea-bottom effect in OSWs affects the accuracy of atmospheric correction and retrievals. On the other hand, applying the NIBEI to flag OSWs improves the reliability and consistency of WCCs maps. The application of proposed NIBEI on satellite images requires only Top Of Atmosphere (TOA) radiances at 750 nm and 900 nm and does not depend on atmospheric correction and ancillary local input data (e.g., bathymetry map, bottom type, empirical coefficients, in-situ measurements). As a result, the proposed NIBEI can readily be applied to detect OSWs on various ocean colour remote sensors in various shallow coastal regions. © 2019 Elsevier Inc.
英文关键词	2SeaColour; MERIS; MODTRAN; OLCI; Optically shallow waters; Radiative transfer modeling; Remote sensing; Sea-bottom effect; Sentinel-3; The Wadden Sea; Tidal waters; Water quality monitoring
语种	英语
scopus关键词	Hydrographic surveys; Infrared devices; Radiative transfer; Reflection; Water quality; 2SeaColour; MERIS; MODTRAN; OLCI; Radiative transfer model; Sea bottom; Sentinel-3; Shallow waters; Tidal water; Wadden Sea; Water quality monitoring; Remote sensing; bottom water; environmental monitoring; intertidal environment; MERIS; ocean color; optical property; remote sensing; seafloor mapping; Sentinel; water quality; Atlantic Ocean; North Sea; Wadden Sea
来源期刊	Remote Sensing of Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/179498
作者单位	Faculty of Geo-Information Science and Earth Observation (ITC), Department of Water Resources (WRS), University of Twente, P.O. Box 217, 7500AE, Enschede, Netherlands; NIOZ Royal Netherlands Institute for Sea Research, Department of Estuarine and Delta Systems, and Utrecht University, P.O. Box 140, Yerseke, AC 4400, Netherlands; NIOZ Royal Netherlands Institute for Sea Research, Department of Coastal Systems, and Utrecht University, PO Box 59, Den Burg, Texel 1790AB, Netherlands
推荐引用方式 GB/T 7714	Arabi B.,Salama M.S.,van der Wal D.,et al. The impact of sea bottom effects on the retrieval of water constituent concentrations from MERIS and OLCI images in shallow tidal waters supported by radiative transfer modeling[J],2020,237.
APA	Arabi B.,Salama M.S.,van der Wal D.,Pitarch J.,&Verhoef W..(2020).The impact of sea bottom effects on the retrieval of water constituent concentrations from MERIS and OLCI images in shallow tidal waters supported by radiative transfer modeling.Remote Sensing of Environment,237.
MLA	Arabi B.,et al."The impact of sea bottom effects on the retrieval of water constituent concentrations from MERIS and OLCI images in shallow tidal waters supported by radiative transfer modeling".Remote Sensing of Environment 237(2020).