Water resource management and flood forecasting are crucial societal financial stakes requiring reliable predictions of flow parameters (depth, velocity), the accuracy which is often limited by uncertainties in hydrodynamic numerical models. In this study, we assess effect two uncertainty sources, namely breach characteristics induced overtopping roughness coefficient, on water elevations inund...

Flood prone areas are often protected against flooding by an extensive network of flood defenses. To ensure their structural integrity, these defenses periodically assessed. Many levees have been functioning well for decades, and survived several relatively high hydraulic loads within lifetime. However, information on load conditions is seldom included in levee safety assessments. Observed degr...

INTRODUCTION Identifying at-risk groups is a challenge in post-disaster psychosocial response. Geospatial techniques can support the design and deployment of targeted and tailored interventions. This study compared spatial patterns in the distribution of hospitalizations for substance abuse disorders and associated area-level predictors before and after Hurricane Katrina in New Orleans, Louisia...

Abstract Artificial levees are anthropogenic structures designed to hydrologically disconnect rivers from floodplains. The extent of artificial in the contiguous United States (CONUS) is unknown. To better estimate distribution levees, we tested several different geomorphic, land cover, and spatial variables developed National Elevation Dataset, Land Cover database, Hydrology Dataset HR Plus. W...

Engineered flood bypasses, or simplified conveyance floodplains, are natural laboratories in which to observe floodplain development and therefore present an opportunity to assess delivery to and sedimentation within a specific class of floodplain. The effects of floods in the Sacramento River basin were investigated by analyzing hydrograph characteristics, estimating event-based sediment disch...