Articles | Volume 21, issue 10
Hydrol. Earth Syst. Sci., 21, 5143–5163, 2017
Hydrol. Earth Syst. Sci., 21, 5143–5163, 2017

Research article 12 Oct 2017

Research article | 12 Oct 2017

Impacts of spatial resolution and representation of flow connectivity on large-scale simulation of floods

Cherry May R. Mateo et al.

Data sets

Shuttle Radar Topography Mission (SRTM) USGS (U.S. Geological Survey)

HydroSHEDS USGS (U.S. Geological Survey)

RID-Hydrology System (Discharge) RID (Royal Irrigation Department, Thailand)

IMPAC-T: H08 Dataset Integrated study on Hydro-Meteorological Prediction and Adaptation to Climate Change in Thailand (IMPAC-T) th/products/public/H08/

Model code and software

CaMa-Flood global hydrodynamic model D. Yamazaki

Short summary
Providing large-scale (regional or global) simulation of floods at fine spatial resolution is difficult due to computational constraints but is necessary to provide consistent estimates of hazards, especially in data-scarce regions. We assessed the capability of an advanced global-scale river model to simulate an extreme flood at fine resolution. We found that when multiple flow connections in rivers are represented, the model can provide reliable fine-resolution predictions of flood inundation.