DOI: 10.5281/zenodo.11400539
title: State of Wildfires 2024-25: Regional Summaries of Burned Area, Fire Emissions, and Individual Fire Characteristics for National, Administrative and Biogeographical Regions

description: This dataset supports the State of Wildfires 2024-25 report under review at Earth System Science Data (Kelley et al., under review). It is an update of the State of Wildfires 2023-24 report (Jones et al. 2024). The dataset provides annual data and final-year anomalies in burned area (BA), fire carbon (C) emissions, and fire properties (e.g. distributional statistics for fire count, size, rate of growth). Annual data relate to the global fire season defined as March-February (e.g., March 2024-February 2025), aligning with an annuall lull in the global fire calendar (see Jones et al., 2024). The complete methodology is described by Kelley et al. (under review).

Citation

Work utilising our regional summaries should cite both Kelley et al. (under review) AND the primary reference for the variable(s) of interest as follows:



Giglio et al. (2018) for MODIS MCD64A1 BA.

van der Werf et al. (2017) for GFED4.1s fire C emissions.

Kaiser er al. (2012) for GFAS fire C emissions.

van der Werf et al. (2017) AND Kaiser er al. (2012) for the average of GFED4.1s and GFAS fire C emissions.

Andela et al. (2019) for the Global Fire Atlas.

Giglio et al. (2016) for the Fire Radiative Power (FRP) observations.

Chuvieco et al. (2024) for FireCCIS311 BA.

Giglio et al. (2024) for VIIRS VNP64A1 BA.


Input Data

Burned Area (BA)



BA data from NASA’s MODIS BA product (MCD64A1) are extended from Giglio et al. (2018) and are available from Giglio et al. (2021). 



Period: 2002-February 2025

Resolution: 500m, daily



BA data from ESA's Climate Change Initiative BA product (FireCCIS311) are extended from Lizundia-Loiola et al. (2022) and are available from Chuvieco et al. (2024). 



Period: 2019-February 2025

Resolution: 300m, daily



BA data from NASA’s VIIRS BA product (VNP64A1) are available from Giglio et al. (2024).



Period: 2012-February 2025 (only the data after 2019 are used for consistency in the comparisons between MCD64A1, FireCCIS311, and VNP64A1).

Resolution: 500m, daily




Fire Carbon (C) Emissions



GFED4.1s fire C emissions data are extended from van der Werf and are available at https://globalfiredata.org/.



Period: 2003-February 2025

Resolution: 0.25 degree, daily






GFAS fire C emissions data are extended from Kaiser et al. (2012) and are available from the ECMWF Confluence Server.



Period: 2003-February 2025

Resolution: 0.1 degree, daily




Global Fire Atlas (Individual Fire Properties)



Global Fire Atlas data are extended from Andela et al. (2019) and are available from the repository maintained by Andela and Jones (2025). 



Period: 2002-February 2025

Driven by 500m MODIS BA data (collection 6.1)




Fire Intensities



FRP data are extended from MOD14A1 and MYD14A1 (Giglio et al., 2016) and are available at Giglio and Justice (2021).



Period: 2002-February 2025

Resolution: 1km, daily




Regional Analysis

We performed "cookie-cutting" (spatial and temporal masking) of the above input data sets to features in each of the following regional layers (e.g. per country in the "Countries" layer). 

The statistics derived from cookie-cutting are listed below. Full details in Kelley et al. (2025).








Layer



Short Form 



Source





Biomes



NA



Olson et al. (2001)





Ecoregions



NA



Olson et al. (2001)





Continents



NA



ArcGIS Hub (2024)





Continental Biomes



NA



See above





Countries



NA



EU Eurostat (2020)





UC Davis Global Administrative Areas (GADM) Level 1



GADM-L1



UC Davis (2022)





Intergovernmental Panel on Climate Change Sixth Assessment Report (AR6) Working Group I (WGI) Reference Regions 



IPCC AR6 WGI Regions



Iturbide et al. (2020)





Global C Project Regional C Cycle Assessment and Processes (RECCAP2) Reference Regions



RECCAP2 Regions



Ciais et al. (2022)





Global Fire Emissions Database (GFED) Basis Regions



GFED4.1s Regions



van der Werf et al. (2006)






 

Regional Statistics and Anomalies



Burned Area (BA)



Calculated regional totals for each fire season.

Relative and standardized anomalies from historical data (since 2002).

Ranking amongst all recorded fire seasons.

Onset, peak, and cessation based on monthly deviations from climatological means.






Carbon Emissions



Calculated regional totals for each fire season.

Relative and standardized anomalies from historical data (since 2003).

Ranking amongst all recorded fire seasons.

Onset, peak, and cessation based on monthly deviations from climatological means.

Statistics available for GFAS, GFED, and their mean.






Individual Fire Properties



Based on values of individual fire size and rate of growth ignition from the ignition point vectors of the Global Fire Atlas.

Calculated regional count.

Calculated regional maxima and 95th percentiles of fire size and rate of growth for each fire season.

Relative and standardized anomalies from historical data (since 2002).

Ranked anomalies among all recorded fire seasons.






Fire Intensity



Based on active fire observations of FRP, which are pooled within each fire of the Global Fire Atlas.

For each fire, the 95th percentile value of all FRP observations is the assigned intensity value (i.e. a "peak fire intensity" omitting any spurious high-end values).

Regionally, the peak fire intensity values are averaged across individual fires.

Relative and standardized anomalies from historical data (since 2002).

Ranked anomalies among all recorded fire seasons.