Remote sensing of water constituent concentrations using time series of in-situ hyperspectral measurements in the Wadden Sea

Abstract This study aimed to investigate the capability of the two-stream radiative transfer model 2SeaColor for the simultaneous retrieval of Chlorophyll-a (Chla), Suspended Particulate Matter (SPM) and Colored Dissolved Organic Matter (CDOM) concentrations from remote sensing measurements under various conditions (i.e., solar zenith angle values (SZAs) and water turbidity levels). For this evaluation, a time series of diurnal in-situ hyperspectral measurements of remote sensing reflectance (Rrs) concurrent with in-situ measured Chla and SPM concentrations between 2008 and 2010 by the NIOZ jetty station (the NJS), located in the Dutch part of the Wadden Sea, was used. Validation of the model retrievals against in-situ measurements showed an acceptable accuracy (Chla: R2 = 0.80 and RMSE = 2.98 [mg m−3]; SPM: R2 = 0.89 and RMSE = 2.53 [g m−3]) with good agreement between the temporal trends of measured and retrieved concentration values over multiple years. However, the model inversion results yielded less good estimates at SZA > 60° during winter. Furthermore, the effect of the tide on the variation of daily time series of Chla and SPM concentrations was analyzed. At the particular NJS location, the tidal effects on the concentrations of SPM and Chla were found to be small. The capability of the 2SeaColor model to retrieve reliable estimates, and the favorable location of the NJS, which is little influenced by tidal phase variations, contribute to a better understanding of the long-term variability of Chla and SPM concentrations. The results of this study may support the ongoing efforts on Sentinel-3 Ocean and Land Color Instrument (OLCI) calibration and validation at the Dutch Wadden Sea.

[1]  W. Gregg.  Reports of the International Ocean-Colour Coordinating Group , 2007 .

[2]  M. S. Salama,et al.  A hydro-optical model for deriving water quality variables from satellite images HydroSat : a case study of the Nile River demonstrating the future Sentinel-2 capabilities , 2012 .

[3]  Wei Shi,et al.  MODIS‐derived ocean color products along the China east coastal region , 2007 .

[4]  Davide D'Alimonte,et al.  Validation of satellite ocean color primary products at optically complex coastal sites: Northern Adriatic Sea, Northern Baltic Proper and Gulf of Finland , 2009 .

[5]  C. Chen,et al.  Using geostationary satellite ocean color data to map the diurnal dynamics of suspended particulate matter in coastal waters , 2013 .

[6]  W. Verhoef,et al.  Two-stream remote sensing model for water quality mapping: 2SeaColor , 2015 .

[7]  C. Mobley,et al.  Hyperspectral remote sensing for shallow waters. I. A semianalytical model. , 1998, Applied optics.

[8]  C. Mobley,et al.  Hyperspectral remote sensing for shallow waters. 2. Deriving bottom depths and water properties by optimization. , 1999, Applied optics.

[9]  Alain F. Zuur,et al.  Four decades of variability in turbidity in the western Wadden Sea as derived from corrected Secchi disk readings , 2013 .

[10]  Pol Coppin,et al.  Atmospheric correction of Advanced Very High Resolution Radiometer imagery , 2004 .

[11]  Michael Fettweis,et al.  An estimate of the suspended particulate matter (SPM) transport in the southern North Sea using SeaWiFS images, in situ measurements and numerical model results , 2007 .

[12]  T. J. Petzold.  Volume Scattering Functions for Selected Ocean Waters , 1972 .

[13]  Menghua Wang.  Remote sensing of the ocean contributions from ultraviolet to near-infrared using the shortwave infrared bands: simulations. , 2007, Applied optics.

[14]  F. Mélin,et al.  Ensemble uncertainty of inherent optical properties. , 2011, Optics express.

[15]  Xiaolong Yu,et al.  Light absorption properties of CDOM in the Changjiang (Yangtze) estuarine and coastal waters: An alternative approach for DOC estimation , 2016 .

[16]  R. Pasterkamp,et al.  HYDROPT: A fast and flexible method to retrieve chlorophyll-a from multispectral satellite observations of optically complex coastal waters , 2008 .

[17]  K. Inaba,et al.  Structural and functional roles of heme binding module in globin proteins: identification of the segment regulating the heme binding structure. , 1998, Journal of molecular biology.

[18]  H. J. Woerd,et al.  Ocean colour changes in the North Pacific since 1930 , 2010 .

[19]  W. Verhoef,et al.  Retrieval of the diffuse attenuation coefficient from GOCI images using the 2SeaColor model: A case study in the Yangtze Estuary , 2016 .

[20]  S. Bailey,et al.  Correction of Sun glint Contamination on the SeaWiFS Ocean and Atmosphere Products. , 2001, Applied optics.

[21]  Zhongbo Su,et al.  Bayesian Model for Matching the Radiometric Measurements of Aerospace and Field Ocean Color Sensors , 2010, Sensors.

[22]  João R. Moreira,et al.  Generation of high precision DEMs of the Wadden Sea with airborne interferometric SAR , 2000, IEEE Trans. Geosci. Remote. Sens..

[23]  G. Cadée,et al.  Phytoplankton in the Marsdiep at the end of the 20th century; 30 years monitoring biomass, primary production, and Phaeocystis blooms , 2002 .

[24]  S. Maritorena,et al.  Bio-optical properties of oceanic waters: A reappraisal , 2001 .

[25]  André Valente,et al.  On the observability of the fortnightly cycle of the Tagus estuary turbid plume using MODIS ocean colour images , 2009 .

[26]  Annelies Hommersom,et al.  Spatial and temporal variability in bio-optical properties of the Wadden Sea , 2009 .

[27]  Wouter Verhoef,et al.  Suppression of local haze variations in MERIS images over turbid coastal waters for retrieval of suspended sediment concentration. , 2010, Optics express.

[28]  Hoshin Vijai Gupta,et al.  Decomposition of the mean squared error and NSE performance criteria: Implications for improving hydrological modelling , 2009 .

[29]  David Doxaran,et al.  Spectral variations of light scattering by marine particles in coastal waters, from the visible to the near infrared , 2009 .

[30]  L. Broersma,et al.  Tourism Development in the Dutch Wadden Area: Spatial-Temporal Characteristics and Monitoring Needs , 2015 .

[31]  J. Ryu,et al.  Ocean color products from the Korean Geostationary Ocean Color Imager (GOCI). , 2013, Optics express.

[32]  Dariusz Stramski,et al.  Light scattering properties of marine particles in coastal and open ocean waters as related to the particle mass concentration , 2003 .

[33]  G. Zibordi,et al.  Tower-based radiometric observations at a coastal site in the Baltic Proper , 2006 .

[34]  Yan Bai,et al.  Assessment of satellite-based chlorophyll-a retrieval algorithms for high solar zenith angle conditions , 2017 .

[35]  B. Osborne,et al.  Light and Photosynthesis in Aquatic Ecosystems. , 1985 .

[36]  E. Fry,et al.  Absorption spectrum (380-700 nm) of pure water. II. Integrating cavity measurements. , 1997, Applied optics.

[37]  Mhd. Suhyb Salama,et al.  MOD2SEA: A Coupled Atmosphere-Hydro-Optical Model for the Retrieval of Chlorophyll-a from Remote Sensing Observations in Complex Turbid Waters , 2016, Remote. Sens..

[38]  Alfred Stein,et al.  Error decomposition and estimation of inherent optical properties. , 2009, Applied optics.

[39]  James W. Brown,et al.  A semianalytic radiance model of ocean color , 1988 .

[40]  K. Stamnes,et al.  Comparison of numerical models for computing underwater light fields. , 1993, Applied optics.

[41]  Davide D'Alimonte,et al.  Multi-sensor satellite time series of optical properties and chlorophyll- a concentration in the Adriatic Sea , 2011 .

[42]  Dariusz Stramski,et al.  Variations in the light absorption coefficients of phytoplankton, nonalgal particles, and dissolved organic matter in coastal waters around Europe , 2003 .

[43]  C. Mobley.  Light and Water: Radiative Transfer in Natural Waters , 1994 .

[44]  C. Philippart,et al.  Long-term Field Observations on Seasonality in Chlorophyll-a Concentrations in a Shallow Coastal Marine Ecosystem, the Wadden Sea , 2010 .

[45]  S. Lehner,et al.  Topography and morphodynamics in the German Bight using SAR and optical remote sensing data , 2005 .

[46]  Menghua Wang,et al.  The NIR-SWIR combined atmospheric correction approach for MODIS ocean color data processing. , 2007, Optics express.

[47]  Marieke A. Eleveld,et al.  Estuarine suspended particulate matter concentrations from sun-synchronous satellite remote sensing: tidal and meteorological effects and biases , 2014 .

[48]  Cédric Jamet,et al.  Challenges and New Advances in Ocean Color Remote Sensing of Coastal Waters , 2013 .

[49]  Seibert Q. Duntley,et al.  The Optical Properties of Diffusing Materials , 1942 .

[50]  Menghua Wang,et al.  Evaluation of MODIS SWIR and NIR-SWIR atmospheric correction algorithms using SeaBASS data , 2009 .

[51]  F. D’Ortenzio,et al.  The colour of the Mediterranean Sea: Global versus regional bio-optical algorithms evaluation and implication for satellite chlorophyll estimates , 2007 .

[52]  S.W.M. Peters,et al.  Tracing Wadden Sea masses with an inverse bio-optical and end-member model , 2010 .

[53]  Yiman Wang.  Satellite SAR Imagery for Topographic Mapping of the Tidal Flat Areas in the Dutch Wadden Sea , 1997 .

[54]  P. J. Werdell,et al.  Assessment of ocean color data records from MODIS-Aqua in the western Arctic Ocean , 2015 .

[55]  Z. Bashir.  Modeling the influence of biological activity on fine sediment transport in the Dutch Wadden Sea , 2016 .

[56]  L. Prieur,et al.  Absorption by dissolved organic matter of the sea (yellow substance) in the UV and visible domains1 , 1981 .

[57]  David Doxaran,et al.  Dynamics of the turbidity maximum zone in a macrotidal estuary (the Gironde, France): Observations from field and MODIS satellite data , 2009 .

[58]  Susanne Kratzer,et al.  Satellite-based water quality monitoring for improved spatial and temporal retrieval of chlorophyll-a in coastal waters , 2015 .

[59]  R. Arnone,et al.  Deriving inherent optical properties from water color: a multiband quasi-analytical algorithm for optically deep waters. , 2002, Applied optics.

[60]  M. S. Salama,et al.  Stochastic inversion of ocean color data using the cross-entropy method. , 2010, Optics express.

[61]  Menghua Wang,et al.  A simple, moderately accurate, atmospheric correction algorithm for SeaWiFS☆ , 1994 .

[62]  H. Ridderinkhof,et al.  Tidal exchange between the North Sea and Dutch Wadden Sea and mixing time scales of the tidal basins , 1990 .