Accurate terrain representation is critical to estimating flood risk in urban areas. However, all
current global elevation data sets can be regarded as digital surface models in urban areas …

With increase in availability of global Digital Elevation Models (DEMs) that are derived from
distinctive techniques with varying characteristics, it is essentially required to assess their …

As urban populations grow, it is increasingly important to accurately characterize flood risk in
cities and built up areas. Global digital elevation models (GDEMs) have recently enabled …

Abstract Digital Elevation Models (DEM) are fundamental data for flood modelling. While
precise airborne DEMs are available in developed regions, most parts of the world rely on …

With the extensive use of 2D flood models, the resolution and quality of Digital Elevation
Models (DEMs) have come under greater focus especially in urban hydrology. One of the …

Study region A mountain city in the coastal region of Southeast China. Study focus This
study elucidated the effect of digital elevation model (DEM) resolution on flood simulation …

Open-access global Digital Elevation Models (DEM) have been crucial in enabling flood
studies in data-sparse areas. Poor resolution (> 30 m), significant vertical errors and the fact …

Flood models rely on accurate topographic data representing the bare earth ground surface.
In many parts of the world, the only topographic data available are the free, satellite-derived …

Digital elevation models (DEM) are fundamental for hydrologic and hydraulic modelling.
Many practitioners rely on open‐access global data sets due to the cost and sparse …

Digital elevation models (DEMs) are crucial in flood modeling as DEM data reflects the
actual topographic characteristics where water can flow in the model. However, a high …