DISPRO datasets for validation of coastal hydrodynamic models

DOI

Appropriate field data are required to check the reliability of hydrodynamic models simulating the dispersion of soluble substances in the marine environment. This study deals with the collection of physical measurements and soluble tracer data intended specifically for this kind of validation. The intensity of currents as well as the complexity of topography and tides around the Cap de La Hague in the center of the English Channel makes it one of the most difficult areas to represent in terms of hydrodynamics and dispersion. Controlled releases of tritium - in the form of HTO - are carried out in this area by the AREVA-NC plant, providing an excellent soluble tracer. A total of 14 493 measurements were acquired to track dispersion in the hours and days following a release. These data, supplementing previously gathered data and physical measurements (bathymetry, water-surface levels, Eulerian and Lagrangian current studies) allow us to test dispersion models from the hour following release to periods of several years which are not accessible with dye experiments. The dispersion characteristics are described and methods are proposed for comparing models against measurements.An application is proposed for a 2 dimensions high-resolution numerical model. It shows how an extensive dataset can be used to build, calibrate and validate several aspects of the model in a highly dynamic and macrotidal area: tidal cycle timing, tidal amplitude, fixed-point current data, hodographs.This study presents results concerning the model's ability to reproduce residual Lagrangian currents, along with a comparison between simulation and high-frequency measurements of tracer dispersion.Physical and tracer data are available from the SISMER database of IFREMER (www.ifremer.fr/sismer/catal). This tool for validation of models in macro-tidal seas is intended to be an open and evolving resource, which could provide a benchmark for dispersion model validation.

Supplement to: Bailly du Bois, Pascal; Dumas, F; Solier, L; Voiseux, C (2012): In-situ database toolbox for short-term dispersion model validation in macro-tidal seas, application for 2D-model. Continental Shelf Research, 36, 63-82

Identifier
DOI https://doi.org/10.1594/PANGAEA.762253
Related Identifier IsSupplementTo https://doi.org/10.1016/j.csr.2012.01.011
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.762253
Provenance
Creator Bailly du Bois, Pascal ORCID logo; Dumas, F; Solier, L; Voiseux, C
Publisher PANGAEA
Publication Year 2011
Rights Creative Commons Attribution-NonCommercial 3.0 Unported; https://creativecommons.org/licenses/by-nc/3.0/
OpenAccess true
Representation
Resource Type Supplementary Publication Series of Datasets; Collection
Format application/zip
Size 19 datasets
Discipline Acoustics; Engineering Sciences; Mechanical and industrial Engineering; Mechanics and Constructive Mechanical Engineering
Spatial Coverage (-3.000W, 48.632S, 1.457E, 50.691N); Ecalgrain; Omonville; St Martin; Vauville; Flamanville; English Channel; La Hague Cape, English Channel; Goury; Herqueville; St. Martin
Temporal Coverage Begin 2002-08-27T10:24:00Z
Temporal Coverage End 2007-03-28T18:00:00Z