Dataset of results from numerical simulations of increased storm intensity in an estuarine salt marsh system

Natascia Pannozzo; Nicoletta Leonardi; Iacopo Carnacina; Rachel Smedley

doi:10.1016/j.dib.2021.107336

Dataset of results from numerical simulations of increased storm intensity in an estuarine salt marsh system

Data Brief. 2021 Aug 28:38:107336. doi: 10.1016/j.dib.2021.107336. eCollection 2021 Oct.

Authors

Natascia Pannozzo¹, Nicoletta Leonardi¹, Iacopo Carnacina², Rachel Smedley¹

Affiliations

¹ Department of Geography and Planning, School of Environmental Sciences, University of Liverpool, Chatham Street, Liverpool L69 7ZT, United Kingdom.
² Department of Civil Engineering, School of Civil Engineering and Built Environment, Liverpool John Moores University, Byrom Street, Liverpool L3 3AF, United Kingdom.

Abstract

This article contains data outlining the effects of increased storm intensity on estuarine salt marshes, previously evaluated in Pannozzo et al. (2021), using the Ribble Estuary, in North West England, as a case study. The hydrodynamic model Delft3D was used to simulate various surge height scenarios and evaluate the effects of increasing surge height on the sediment budget of the system. The data shows that an increase in storm intensity (i.e. surge height) promotes flood dominance and triggers a net import of sediment, positively contributing to the sediment budget of the marsh platform and the estuarine system. The timing of the storm surge relative to high or low tide, the duration of the surge and the presence of vegetation do not cause major changes in the sediment budget. This dataset could be used to evaluate how increased storm intensity might influence the sediment budget of estuaries in comparison to other types of coastal systems (e.g., bays) to illustrate how the response of salt marshes to increased storm intensity varies with a change in the hydrodynamics and sediment delivery dynamics of the system.

Keywords: Delft3D; Salt marshes; Storm surges.