Intro This review surveys recent progress made to address fundamental issues surrounding globally consistent mapping of flood hazard in underdeveloped countries. This is achieved through a novel combination of appropriate physics, efficient numerical algorithms, high-performance computing, new sources of big data, and model automation frameworks.

Every year flood events lead to thousands of casualties and significant economic damage.

Mapping the areas at risk of flooding is critical to reducing these losses, yet until the last few years such information was available for only a handful of well-studied locations. This review surveys recent progress to address this fundamental issue through a novel combination of appropriate physics, efficient numerical algorithms, high-performance computing, new sources of big data, and model automation frameworks. The review describes the fluid mechanics of inundation and the models used to predict it, before going on to consider the developments that have led in the last five years to the creation of the first true fluid mechanics models of flooding over the entire terrestrial land surface.

This figure demonstrates a 1-in-100 year flood depth for the entire US at 30m resolution.

Releated Research

View All Research
Read More
Research Paper

Increased population exposure to Amphan-scale cyclones under future climates

Read More
Research Paper

A 30 m global map of elevation with forests and buildings removed

Read More
Research Paper

Inequitable patterns of US flood risk in the Anthropocene

Read More
Research Paper

Voluntary purchases and adverse selection in the market for flood insurance

Read More
Research Paper

An assessment of large-scale flood modelling based on LiDAR data

Read More
Research Paper

Causes, impacts and patterns of disastrous river floods