Preprints
https://doi.org/10.5194/egusphere-2023-2162
https://doi.org/10.5194/egusphere-2023-2162
23 Nov 2023
 | 23 Nov 2023

A global behavioural model of human fire use and management: WHAM! v1.0

Oliver Perkins, Matthew Kasoar, Apostolos Voulgarakis, Cathy Smith, Jay Mistry, and James Millington

Abstract. Fire is an integral ecosystem process and a major natural source of vegetation disturbance globally. Yet at the same time, humans use and manage fire in diverse ways and for a huge range of purposes. Therefore, it is perhaps unsurprising that a central finding of the first Fire Model Intercomparison Project was simplistic representation of humans is a substantial shortcoming in the fire modules of dynamic global vegetation models (DGVMs). In response to this challenge, we present a novel, global geospatial model that seeks to capture the diversity of human-fire interactions. Empirically-grounded with a global database of anthropogenic fire impacts, WHAM! (the Wildfire Human Agency Model) represents the underlying behavioural and land system drivers of human approaches to fire management and their impact on fire regimes. WHAM! is designed to be coupled with DGVMs (JULES-INFERNO in the current instance), such that human and biophysical drivers of fire on Earth, and their interactions, can be captured in process-based models for the first time. Initial outputs from WHAM! presented here are in line with previous evidence suggesting managed anthropogenic fire use is decreasing globally, and point to land use intensification as the underlying reason for this phenomenon.

Oliver Perkins, Matthew Kasoar, Apostolos Voulgarakis, Cathy Smith, Jay Mistry, and James Millington

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • CC1: 'Comment on egusphere-2023-2162', carolina ojeda leal, 29 Nov 2023
  • CC2: 'Comment on egusphere-2023-2162', Sam Rabin, 08 Feb 2024
  • RC1: 'Comment on egusphere-2023-2162', carolina ojeda leal, 22 Feb 2024
  • RC2: 'Comment on egusphere-2023-2162', Sam Rabin, 23 Feb 2024
Oliver Perkins, Matthew Kasoar, Apostolos Voulgarakis, Cathy Smith, Jay Mistry, and James Millington

Data sets

Data for running WHAM! v1.0 Oli Perkins, James Millington, Matt Kasoar, Apostolos Voulgarakis, Cathy Smith, and Jay Mistry https://zenodo.org/record/8363979

Model code and software

Wildfire_Human_Agency_Model: v1.0 Oli Perkins, James Millington, Matt Kasoar, Apostolos Voulgarakis, Cathy Smith, and Jay Mistry https://zenodo.org/records/10142828

Oliver Perkins, Matthew Kasoar, Apostolos Voulgarakis, Cathy Smith, Jay Mistry, and James Millington

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Short summary
Wildfire is often presented in the media as a danger to human life. Yet globally, millions of people’s livelihoods depend on using fire as a tool. So, patterns of fire emerge from interactions between humans, land use and climate. This complexity means scientists cannot yet reliably say how fire will be impacted by climate change. So, we developed a new model that represents globally how people use and manage fire. The model reveals the extent and diversity of how humans live with and use fire.