cff-version: 1.2.0
abstract: "<p>The aim of this study is to develop and demonstrate a coupled modeling approach of surface and subsurface water to collectively quantify the effects of drought mitigation measures (DMM) on long-term groundwater levels and the short-term response during heavy (design) rainfall events of both surface and subsurface water systems in the Chaamse beken catchment, North Brabant, The Netherlands. It is a modeling exercise that sequentially couples a subsurface flow model, consisting of a dynamically coupled groundwater component (MODFLOW6 model) and a component representing the unsaturated zones (MetaSWAP), to a hydrodynamic surface water model (Delft3D 1D2D FM). The MODFLOW-MetaSWAP model is based on the regional groundwater model of North Brabant, provided by the Brabantse Delta Water Authority, and was refined from the original 250x250m to a 25x25m grid. The surface water model consists of a Delft3D 1D2D FM hydrodynamic model that consists of a 1D waterway network (including drainage ditches) coupled dynamically to a 2D catchment grid of 25x25m resolution. The stream network was generated based on the Dutch database for surface water systems HyDAMO (NHI, 2024) and the drainage ditches were added manually based on the drainage network of North Brabant. Both datasets were provided by the Brabantse Delta Water Authority. The 2D grid was generated based on the Dutch national Digital Terrain Model (AHN, 2024). The outputs are gridded groundwater levels and fluxes (IDF, HED, and CBC files) from the subsurface flow model, and gridded water depth, volume and flow velocity (NetCDF files) from the surface water model, and are provided in this dataset. These include a) the long-term mean high (MHG) and mean low (MLG) groundwater levels of the long-term simulation of the baseline period (1996-2004), as well as a reference case and a drought mitigation scenario under a future climate scenario WH2050 (van den Hurk et al., 2014), b) the annual high (HG3) and low (LG3) groundwater levels used to calculate the long-term means, c) the groundwater levels of a specified day representative of the long-term simulation representative of MHG (January 2002), d) the groundwater fluxes to the surface level and stream network, e) the gridded final simulation time step outputs at point locations and maxima for water depth and volume from the surface water model. The model configuration files, as well as output files exceeding 5GB, including hourly gridded groundwater heads and surface water outputs of the rainfall events, can be provided by the authors upon request.</p>"
authors:
  - family-names: Wittmann
    given-names: Christopher
    orcid: "https://orcid.org/0009-0003-0384-0435"
  - family-names: Kingma
    given-names: Vera
  - family-names: Schoonderwoerd
    given-names: Eva
title: "Model data underlying the publication: Evaluating the effects of drought mitigation measures during flood events"
keywords:
version: 1
identifiers:
  - type: doi
    value: 10.4121/6ac0cbc7-58e1-4210-bd68-639e20174454.v1
license: CC BY 4.0
date-released: 2024-11-04