Whaley, C. H. and Butler, T. and Adame, J. A. and Ambulkar, R. and Arnold, S. R. and Buchholz, R. R. and Gaubert, B. and Hamilton, D. S. and Huang, M. and Hung, H. and Kaiser, J. W. and Kaminski, J. W. and Knote, C. and Koren, G. and Kouassi, J.-L. and Lin, M. and Liu, T. and Ma, J. and Manomaiphiboon, K. and Bergas Masso, E. and McCarty, J. L. and Mertens, M. and Parrington, M. and Peiro, H. and Saxena, P. and Sonwani, S. and Surapipith, V. and Tan, D. Y. T. and Tang, W. and Tanpipat, V. and Tsigaridis, K. and Wiedinmyer, C. and Wild, O. and Xie, Y. and Zuidema, P. (2025) HTAP3 Fires : towards a multi-model, multi-pollutant study of fire impacts. Geoscientific Model Development, 18 (11). pp. 3265-3309. ISSN 1991-959X
Full text not available from this repository.Abstract
Open biomass burning has major impacts globally and regionally on atmospheric composition. Fire emissions include particulate matter, tropospheric ozone precursors, and greenhouse gases, as well as persistent organic pollutants, mercury, and other metals. Fire frequency, intensity, duration, and location are changing as the climate warms, and modelling these fires and their impacts is becoming more and more critical to inform climate adaptation and mitigation, as well as land management. Indeed, the air pollution from fires can reverse the progress made by emission controls on industry and transportation. At the same time, nearly all aspects of fire modelling – such as emissions, plume injection height, long-range transport, and plume chemistry – are highly uncertain. This paper outlines a multi-model, multi-pollutant, multi-regional study to improve the understanding of the uncertainties and variability in fire atmospheric science, models, and fires' impacts, in addition to providing quantitative estimates of the air pollution and radiative impacts of biomass burning. Coordinated under the auspices of the Task Force on Hemispheric Transport of Air Pollution, the international atmospheric modelling and fire science communities are working towards the common goal of improving global fire modelling and using this multi-model experiment to provide estimates of fire pollution for impact studies. This paper outlines the research needs, opportunities, and options for the fire-focused multi-model experiments and provides guidance for these modelling experiments, outputs, and analyses that are to be pursued over the next 3 to 5 years. The paper proposes a plan for delivering specific products at key points over this period to meet important milestones relevant to science and policy audiences.