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Fluvial Flood - Historical Risk, Global (v1.0)

Description

This is a static historical dataset for the globe capturing the near-historical risk from fluvial (riverine) flooding using near-historical streamflow data.

Categories:
flood, hazard, river, fluvial, static, historical, global, spatiafi
Temporal Extent:
2000-01-01 to 2013-01-01
Region:
Global
Resolution:
1 km
Product Version:
1.0

Technical Description

The Fluvial Flood Historical Risk product captures the recent near-historical risk of fluvial (riverine) flooding across the world using inundation data derived from historical streamflow data. By combining multiple fluvial flood extent maps across different return periods, we can understand the annual probability of fluvial flood occurring at locations across the globe. This product can be used to assess both the relative and absolute risk of fluvial flood at different locations.

This dataset contains the following fields:

  • flood_probability: Probabilities of fluvial flood event (flood depths > 10 mm) occurrence at pixel locations in the historical period. Technically unitless but represents annual rate of flood occurrence. Values are between 0 and 0.1. For example, a location with a value of 0.1 has a 10% chance in any year of experiencing a fluvial flooding event with a depth greater than 10 mm.