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Coastal turbidity derived from PROBA-V global vegetation satellite
De Keukelaere, L.; Sterckx, S.; Adriaensen, S.; Bhatia, N.; Monbaliu, J.; Toorman, E.; Cattrijsse, A.; Lebreton, C.; Van der Zande, D.; Knaeps, E. (2020). Coastal turbidity derived from PROBA-V global vegetation satellite. Remote Sens. 12(3): 463. https://hdl.handle.net/10.3390/rs12030463
In: Remote Sensing. MDPI: Basel. ISSN 2072-4292; e-ISSN 2072-4292, meer
Peer reviewed article  

Beschikbaar in  Auteurs 

Trefwoord
    Marien
Author keywords
    PROBA-V; turbidity; coastal water; iCOR

Auteurs  Top 
  • De Keukelaere, L.
  • Sterckx, S.
  • Adriaensen, S.
  • Bhatia, N.
  • Monbaliu, J.
  • Toorman, E.
  • Cattrijsse, A.
  • Lebreton, C.
  • Van der Zande, D.
  • Knaeps, E.

Abstract
    PROBA-V (Project for On-Board Autonomy-Vegetation) is a global vegetation monitoring satellite. The spectral quality of the data and the coverage of PROBA-V over coastal waters provide opportunities to expand its use to other applications. This study tests PROBA-V data for the retrieval of turbidity in the North Sea region. In the first step, clouds were masked and an atmospheric correction, using an adapted version of iCOR, was performed. The resulted water leaving radiance reflectance was validated against AERONET-OC stations, yielding a coefficient of determination of 0.884 in the RED band. Next, turbidity values were retrieved using the RED band. The PROBA-V retrieved turbidity data was compared with turbidity data from CEFAS Smartbuoys and ad-hoc measurement campaigns. This resulted in a coefficient of determination of 0.69. Finally, a time series of 1.5 year of PROBA-V derived turbidity data was plotted over MODIS data to check consistencies in both datasets. Seasonal dynamics were noted with high turbidity in autumn and winter and low values in spring and summer. For low values, PROBA-V and MODIS yielded similar results, but while MODIS seems to saturate around 50 FNU, PROBA-V can reach values up till almost 80 FNU.

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