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Wildfire - Historical Risk, Global (v1.1)

Description

This is a static historical dataset for the globe capturing the near-historical risk from wildfire over an 10-year period using the Fire Weather Index and a proprietary vegetative fuel load dataset.

Categories:
wildfire, fire, historical, fwi, global, hazard, fuel
Temporal Extent:
2012-01-01 to 2022-01-01
Region:
Global
Resolution:
309 meters
Product Version:
1.1

Technical Description

The Wildfire Historical Risk product captures the recent near-historical risk of wildfires across the world using well-established fire risk indices, as well as a custom proprietary vegetative fuel load dataset.

This layer displays the historical fire risk or the likelihood of fire occurrence in the past decade. It identifies regions which, due to their localized climate and vegetation characteristics, are more likely to experience wildfires. It consists of risk scores calculated using a combination of historical Fire Weather Index (FWI) values between the years 2012-2022 and fuel loads that incorporate the characteristics of dominant landcover (e.g. litter, shrubland) and species in different biomes (e.g. tropical subtropical moist broadleaf forests).

The FWI is an index which indicates fire danger due to climate factors such as temperature, wind and precipitation. An extensive record of historical fire weather information is used to identify anomalously high fire weather conditions which are scaled, corrected and combined with our proprietary fuel layer.

Historical wildfire events were used in the course of validation, which demonstrated that the areas of observed fire corresponded to elevated risk values.

The FWI is an index which indicates fire danger due to climate factors such as temperature, wind and precipitation. An extensive record of historical fire weather information is used to identify anomalously high fire weather conditions which are scaled, corrected and combined with our proprietary fuel layer. The fire risk scores are capped to fall between 0 and 100, representing low to extreme fire risk. All open water areas have been masked in this layer.
Additionally, urban cores have also been masked, but fire risk is still calculated at the urban-wildland interface.

This dataset contains the following fields:

  • fire_risk_score: The wildfire risk score at that location. These values range from 0 to 124 in this layer.
  • fire_risk_index: The wildfire risk index at that location. These are the fire risk score values, but capped to fall between 0 and 100.