HTAP3 fires: towards a multi-model, multi-pollutant study of fire impacts

Whaley, Cynthia H.; Butler, Tim; Adame, Jose A.; Ambulkar, Rupal; Arnold, Steve R.; Buchholz, Rebecca R.; Gaubert, Benjamin; Hamilton, Douglas S.; Huang, Min; Hung, Hayley; Kaiser, Johannes W.; Kaminski, Jacek W.; Knote, Christophe; Koren, Gerbrand; Kouassi, Jean-Luc; Lin, Meiyun; Liu, Tianjia; Ma, Jianmin; Manomaiphiboon, Kasemsan; Bergas Masso, Elisa; McCarty, Jessica L.; Mertens, Mariano; Parrington, Mark; Peiro, Helene; Saxena, Pallavi; Sonwani, Saurabh; Surapipith, Vanisa; Tan, Damaris; Tang, Wenfu; Tanpipat, Veerachai; Tsigaridis, Kostas; Wiedinmyer, Christine; Wild, Oliver; Xie, Yuanyu; Zuidema, Paquita. 2024 HTAP3 fires: towards a multi-model, multi-pollutant study of fire impacts. Geoscientific Model Development Discussions, gmd-2024-126. 10.5194/gmd-2024-126

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Abstract/Summary

Open biomass burning has major impacts globally and regionally on atmospheric composition. Fire emissions include particulate matter, tropospheric ozone precursors, 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 analysis that are to be pursued over the next 3 to 5 years. It proposes a plan for delivering specific products at key points over this period to meet important milestones relevant to science and policy audiences.

Item Type:	Publication - Article
Digital Object Identifier (DOI):	10.5194/gmd-2024-126
UKCEH and CEH Sections/Science Areas:	Atmospheric Chemistry and Effects (Science Area 2017-24)
Additional Information. Not used in RCUK Gateway to Research.:	Open Access paper - full text available via Official URL link.
NORA Subject Terms:	Ecology and Environment Atmospheric Sciences
Date made live:	28 Aug 2024 14:51 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/537930

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