scholarly journals Atmospheric correction of Sentinel-3/OLCI data for mapping of suspended particulate matter and chlorophyll-a concentration in Belgian turbid coastal waters

2021 ◽  
Vol 256 ◽  
pp. 112284
Author(s):  
Quinten Vanhellemont ◽  
Kevin Ruddick
Keyword(s):  
Particulate Matter ◽  
Chlorophyll A ◽  
Suspended Particulate Matter ◽  
Coastal Waters ◽  
Atmospheric Correction ◽  
Chlorophyll A Concentration ◽  
Suspended Particulate

The dynamics of suspended particulate matter (SPM) and chlorophyll- a from intratidal to annual time scales in a coastal turbidity maximum

2017 ◽  
Vol 127 ◽  
pp. 105-118 ◽  
Author(s):  
C.M. van der Hout ◽  
R. Witbaard ◽  
M.J.N. Bergman ◽  
G.C.A. Duineveld ◽  
M.J.C. Rozemeijer ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Chlorophyll A ◽  
Time Scales ◽  
Suspended Particulate Matter ◽  
Turbidity Maximum ◽  
Suspended Particulate ◽  
Annual Time

scholarly journals Influence of the Suspended Particulate Matter on the Satellite Radiance in the Sunglint Observation Geometry in Coastal Waters

2020 ◽  
Vol 12 (9) ◽  
pp. 1445
Author(s):  
Malik Chami ◽  
Morgane Larnicol ◽  
Audrey Minghelli ◽  
Sebastien Migeon
Keyword(s):  
Particulate Matter ◽  
Suspended Particulate Matter ◽  
Coastal Waters ◽  
Satellite Image ◽  
Ocean Color ◽  
Optical Measurements ◽  
Strong Wind ◽  
Turbid Waters ◽  
Suspended Particulate ◽  
Observation Geometry

The analysis of satellite ocean color data that are acquired over coastal waters is highly relevant to gain understanding of the functioning of these complex ecosystems. In particular, the estimation of the suspended particulate matter (SPM) concentrations is of great interest for monitoring the coastal dynamics. However, a high number of pixels of satellite images could be affected by the surface-reflected solar radiation, so-called the sunglint. These pixels are either removed from the data processing, which results in a loss of information about the ocean optical properties, or they are subject to the application of glint correction techniques that may contribute to increase the uncertainties in the SPM retrieval. The objective of this study is to demonstrate the high potential of exploiting satellite observations acquired in the sunglint viewing geometry for determining the water leaving radiance for SPM dominated coastal waters. For that purpose, the contribution of the water leaving radiance Lw to the satellite signal LTOA is quantified for the sunglint observation geometry using forward radiative transfer modelling. Some input parameters of the model were defined using in-situ bio-optical measurements performed in various coastal waters to make the simulations consistent with real-world observations. The results showed that the sunglint radiance is not sufficiently strong to mask the influence of the oceanic radiance at the satellite level, which oceanic radiance remains significant (e.g., 40% at 560 nm for a SPM concentration value of 9 g m−3). The influence of the sunglint radiance is even weaker for highly turbid waters and/or for strong wind conditions. In addition, the maximum radiance simulated in the sunglint region for highly turbid waters remains lower than the saturation radiances specified for the current ocean color sensors. The retrieval of Lw and SPM should thus be feasible from radiances measured in the sunglint pattern by satellite sensors, thus increasing the number of exploitable pixels within a satellite image. The results obtained here could be used as a basis for the development of inverse ocean color algorithms that would interestingly use the radiance measured in sunglint observation geometry as it has been done for other topics than the field of ocean color research.

scholarly journals High-frequency and tidal period observations of suspended particulate matter in coastal waters by AHI/Himawari-8

2020 ◽  
Vol 28 (19) ◽  
pp. 27387
Author(s):  
Xiaosong Ding ◽  
Xianqiang He ◽  
Yan Bai ◽  
Qiankun Zhu ◽  
Fang Gong ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Suspended Particulate Matter ◽  
Coastal Waters ◽  
High Frequency ◽  
Tidal Period ◽  
Suspended Particulate

scholarly journals Simultaneous atmospheric correction and quantification of suspended particulate matter in the Guadalquivir estuary from Landsat images

2015 ◽  
Vol 368 ◽  
pp. 15-20 ◽  
Author(s):  
M. Carpintero ◽  
M. J. Polo ◽  
Mhd. Suhyp Salama
Keyword(s):  
Particulate Matter ◽  
Suspended Particulate Matter ◽  
Atmospheric Correction ◽  
Temporal Distribution ◽  
Monitoring Network ◽  
Data Series ◽  
Landsat Images ◽  
Guadalquivir Estuary ◽  
Suspended Particulate ◽  
Analytical Approaches

Abstract. Earth observations (EOs) following empirical and/or analytical approaches are a feasible alternative to obtain spatial and temporal distribution of water quality variables. The limitations observed in the use of empirical approaches to estimate high concentrations of suspended particulate matter (SPM) in the estuarine water of Guadalquivir have led the authors to use a semi-analytical model, which relates the water constituents’ concentration to the water leaving reflectance. In this work, the atmospheric correction has been carried out simultaneously and the aerosol reflectance and backscattering coefficients of SPM obtained. The results are validated using in situ SPM data series provided by a monitoring network in the study area. The results show that the model allows us to successfully estimate backscattering coefficients of SPM in the estuary, differentiating clear and turbid water and using two ε(4,5) .These considerations improve the value of R2 from 0.68 (single ε(4,5)) to 0.86 (two ε( 4,5)) on 18 May 2009. This method could be used as a preliminary approach to obtain SPM concentration in the Guadalquivir estuary with the limitations that the model shows for turbid waters.

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