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Estimating estuarine residence times in the Westerschelde (The Netherlands) using a box model with fixed dispersion coefficients Soetaert, K.; Herman, P.M.J. (1995). Estimating estuarine residence times in the Westerschelde (The Netherlands) using a box model with fixed dispersion coefficients. Hydrobiologia 311(1-3): 215-224. https://dx.doi.org/10.1007/BF00008582 In: Hydrobiologia. Springer: The Hague. ISSN 0018-8158; e-ISSN 1573-5117, meer Is gerelateerd aan: Soetaert, K.; Herman, P.M.J. (1995). Estimating estuarine residence times in the Westerschelde (The Netherlands) using a box model with fixed dispersion coefficients, in: Heip, C.H.R. et al. Major biological processes in European tidal estuaries. Developments in Hydrobiology, 110: pp. 215-224, meer

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Beschikbaar in	Auteurs
VLIZ: Open Marine Archive 140774 [ download pdf ]

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Trefwoorden

Coefficients > Exchange coefficients > Diffusion coefficients Models > Mathematical models Monitoring > Environmental monitoring Motion > Water motion > Circulation > Water circulation Motion > Water motion > Circulation > Water circulation > Shelf dynamics > Estuarine dynamics Profiles > Vertical profiles > Salinity profiles Residence time ANE, Nederland, Westerschelde [Marine Regions] Marien/Kust; Brak water

Author keywords

Residence times; Estuary; Estuarium

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Auteurs		Top
Soetaert, K., meer Herman, P.M.J., meer

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Abstract

The residence time of the water masses in the Westerschelde estuary was determined using a simple compartment-model that simulates the advective-diffusive transport of a conservative dissolved substance (chlorinity). The residence time of a water parcel in the upstream part of the estuary (i.e. the time needed for this water parcel to leave the estuary) varied from about 50 days in winter to about 70 days in summer. The most seaward compartment had residence times of about 10-15 days. Dispersive coefficients that are fixed in time were able to reproduce the observed salinity distributions very well in the Westerschelde. They were obtained by calibration on observed chlorinities. It is argued that the apparent relationship of dispersive coefficients with freshwater flow, which is observed in certain studies, could (partly) reflect the deviation from steady state conditions which are required assumptions to calculate these dispersive coefficients directly from salinity profiles.

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