Development and evaluation of a framework for global flood hazard mapping
By Francesco Dottori, Peter Salamon, A. Bianchi, L. Alfieri, F. Hirpa, Luc Feyen. 2016
361 citations recorded by the source corpus.
Abstract Nowadays, the development of high-resolution flood hazard models have become feasible at continental and global scale, and their application in developing countries and data-scarce regions can be extremely helpful to increase preparedness of population and reduce catastrophic impacts. The present work describes the development of a novel procedure for global flood hazard mapping, based on the most recent advances in large scale flood modelling. We derive a long-term dataset of daily river discharges from the hydrological simulations of the Global Flood Awareness System (GloFAS). Streamflow data is downscaled on a high resolution river network and processed to provide the input for local flood inundation simulations, performed with a two-dimensional hydrodynamic model. All flood-prone areas identified along the river network are then merged to create continental flood hazard maps for different return periods at 30′′ resolution. We evaluate the performance of our methodology in several river basins across the globe by comparing simulated flood maps with both official hazard maps and a mosaic of flooded areas detected from satellite images. The evaluation procedure also includes comparisons with the results of other large scale flood models. We further investigate the sensitivity of the flood modelling framework to several parameters and modelling approaches and identify strengths, limitations and possible improvements of the methodology.
Subfields: Atmospheric Science, Global and Planetary Change, Water Science and Technology
View Paper: https://www.semanticscholar.org/paper/fc51dc8d89f2973a7fcf6027fbc78b33fa298a78
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In Atmospheric Science
In Global and Planetary Change
- Francesco Dottori
- K. Wyser
- Peter Salamon
- Luc Feyen
- L. Alfieri
- Yoshua Bengio
- R. Betts
- Carl John Scarrott
In Water Science and Technology
Citations in the corpus
- Multi-Model Projections of River Flood Risk in Europe under Global Warming (2018, methodology): “To model inundation processes, JRC-EU and JRC-GL made use of a catalogue of model based inundation maps at the European [32] and Global [49] scales for a set of constant flood magnitudes.”
- Global projections of river flood risk in a warmer world (2017, background): “These raster maps define the flood depth in rivers with an upstream drainage area larger than 5000 km2 in all continents except Antarctica, covering 73% of the considered continental area along 1.9 million km of rivers [Dottori et al., 2016].”
- Visualizing the Consequences of Climate Change Using Cycle-Consistent Adversarial Networks (2019, methodology): “The effects of an individual turning these knobs could be based on the best available climate model projections, such as the one used for our binary flood map (Dottori et al., 2016), integrated with economic and policy assessment models.”