Coupling interactive fire with atmospheric composition and climate in the UK Earth System Model
Fire constitutes a key process in the Earth system (ES), being driven by climate as well as affecting the climate by changing atmospheric composition and impacting the terrestrial carbon cycle. However, studies on the effects of fires on atmospheric composition, radiative forcing and climate have be...
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ftimperialcol:oai:spiral.imperial.ac.uk:10044/1/96462 2023-05-15T13:07:15+02:00 Coupling interactive fire with atmospheric composition and climate in the UK Earth System Model Teixeira, JC Folberth, GA O'Connor, FM Unger, N Voulgarakis, A 2021-09-03 http://hdl.handle.net/10044/1/96462 https://doi.org/10.5194/gmd-14-6515-2021 English eng Copernicus Publications Geoscientific Model Development 1991-959X http://hdl.handle.net/10044/1/96462 doi:10.5194/gmd-14-6515-2021 © Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/ CC-BY 6539 6515 Science & Technology Physical Sciences Geosciences Multidisciplinary Geology BIOMASS-BURNING EMISSIONS ENVIRONMENT SIMULATOR JULES TRACE GASES PART 1 AIR-QUALITY FOREST-FIRE LAND-USE AEROSOL CHEMISTRY SAVANNA 04 Earth Sciences Journal Article 2021 ftimperialcol https://doi.org/10.5194/gmd-14-6515-2021 2022-04-28T22:41:05Z Fire constitutes a key process in the Earth system (ES), being driven by climate as well as affecting the climate by changing atmospheric composition and impacting the terrestrial carbon cycle. However, studies on the effects of fires on atmospheric composition, radiative forcing and climate have been limited to date, as the current generation of ES models (ESMs) does not include fully atmosphere–composition–vegetation coupled fires feedbacks. The aim of this work is to develop and evaluate a fully coupled fire–composition–climate ES model. For this, the INteractive Fires and Emissions algoRithm for Natural envirOnments (INFERNO) fire model is coupled to the atmosphere-only configuration of the UK's Earth System Model (UKESM1). This fire–atmosphere interaction through atmospheric chemistry and aerosols allows for fire emissions to influence radiation, clouds and generally weather, which can consequently influence the meteorological drivers of fire. Additionally, INFERNO is updated based on recent developments in the literature to improve the representation of human and/or economic factors in the anthropogenic ignition and suppression of fire. This work presents an assessment of the effects of interactive fire coupling on atmospheric composition and climate compared to the standard UKESM1 configuration that uses prescribed fire emissions. Results show a similar performance when using the fire–atmosphere coupling (the “online” version of the model) when compared to the offline UKESM1 that uses prescribed fire. The model can reproduce observed present-day global fire emissions of carbon monoxide (CO) and aerosols, despite underestimating the global average burnt area. However, at a regional scale, there is an overestimation of fire emissions over Africa due to the misrepresentation of the underlying vegetation types and an underestimation over equatorial Asia due to a lack of representation of peat fires. Despite this, comparing model results with observations of CO column mixing ratio and aerosol optical depth (AOD) show that the fire–atmosphere coupled configuration has a similar performance when compared to UKESM1. In fact, including the interactive biomass burning emissions improves the interannual CO atmospheric column variability and consequently its seasonality over the main biomass burning regions – Africa and South America. Similarly, for aerosols, the AOD results broadly agree with the Moderate Resolution Imaging Spectroradiometer (MODIS) and the Aerosol Robotic Network (AERONET) observations. Article in Journal/Newspaper Aerosol Robotic Network Imperial College London: Spiral Jules ENVELOPE(140.917,140.917,-66.742,-66.742) Geoscientific Model Development 14 10 6515 6539 |
institution |
Open Polar |
collection |
Imperial College London: Spiral |
op_collection_id |
ftimperialcol |
language |
English |
topic |
Science & Technology Physical Sciences Geosciences Multidisciplinary Geology BIOMASS-BURNING EMISSIONS ENVIRONMENT SIMULATOR JULES TRACE GASES PART 1 AIR-QUALITY FOREST-FIRE LAND-USE AEROSOL CHEMISTRY SAVANNA 04 Earth Sciences |
spellingShingle |
Science & Technology Physical Sciences Geosciences Multidisciplinary Geology BIOMASS-BURNING EMISSIONS ENVIRONMENT SIMULATOR JULES TRACE GASES PART 1 AIR-QUALITY FOREST-FIRE LAND-USE AEROSOL CHEMISTRY SAVANNA 04 Earth Sciences Teixeira, JC Folberth, GA O'Connor, FM Unger, N Voulgarakis, A Coupling interactive fire with atmospheric composition and climate in the UK Earth System Model |
topic_facet |
Science & Technology Physical Sciences Geosciences Multidisciplinary Geology BIOMASS-BURNING EMISSIONS ENVIRONMENT SIMULATOR JULES TRACE GASES PART 1 AIR-QUALITY FOREST-FIRE LAND-USE AEROSOL CHEMISTRY SAVANNA 04 Earth Sciences |
description |
Fire constitutes a key process in the Earth system (ES), being driven by climate as well as affecting the climate by changing atmospheric composition and impacting the terrestrial carbon cycle. However, studies on the effects of fires on atmospheric composition, radiative forcing and climate have been limited to date, as the current generation of ES models (ESMs) does not include fully atmosphere–composition–vegetation coupled fires feedbacks. The aim of this work is to develop and evaluate a fully coupled fire–composition–climate ES model. For this, the INteractive Fires and Emissions algoRithm for Natural envirOnments (INFERNO) fire model is coupled to the atmosphere-only configuration of the UK's Earth System Model (UKESM1). This fire–atmosphere interaction through atmospheric chemistry and aerosols allows for fire emissions to influence radiation, clouds and generally weather, which can consequently influence the meteorological drivers of fire. Additionally, INFERNO is updated based on recent developments in the literature to improve the representation of human and/or economic factors in the anthropogenic ignition and suppression of fire. This work presents an assessment of the effects of interactive fire coupling on atmospheric composition and climate compared to the standard UKESM1 configuration that uses prescribed fire emissions. Results show a similar performance when using the fire–atmosphere coupling (the “online” version of the model) when compared to the offline UKESM1 that uses prescribed fire. The model can reproduce observed present-day global fire emissions of carbon monoxide (CO) and aerosols, despite underestimating the global average burnt area. However, at a regional scale, there is an overestimation of fire emissions over Africa due to the misrepresentation of the underlying vegetation types and an underestimation over equatorial Asia due to a lack of representation of peat fires. Despite this, comparing model results with observations of CO column mixing ratio and aerosol optical depth (AOD) show that the fire–atmosphere coupled configuration has a similar performance when compared to UKESM1. In fact, including the interactive biomass burning emissions improves the interannual CO atmospheric column variability and consequently its seasonality over the main biomass burning regions – Africa and South America. Similarly, for aerosols, the AOD results broadly agree with the Moderate Resolution Imaging Spectroradiometer (MODIS) and the Aerosol Robotic Network (AERONET) observations. |
format |
Article in Journal/Newspaper |
author |
Teixeira, JC Folberth, GA O'Connor, FM Unger, N Voulgarakis, A |
author_facet |
Teixeira, JC Folberth, GA O'Connor, FM Unger, N Voulgarakis, A |
author_sort |
Teixeira, JC |
title |
Coupling interactive fire with atmospheric composition and climate in the UK Earth System Model |
title_short |
Coupling interactive fire with atmospheric composition and climate in the UK Earth System Model |
title_full |
Coupling interactive fire with atmospheric composition and climate in the UK Earth System Model |
title_fullStr |
Coupling interactive fire with atmospheric composition and climate in the UK Earth System Model |
title_full_unstemmed |
Coupling interactive fire with atmospheric composition and climate in the UK Earth System Model |
title_sort |
coupling interactive fire with atmospheric composition and climate in the uk earth system model |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
http://hdl.handle.net/10044/1/96462 https://doi.org/10.5194/gmd-14-6515-2021 |
long_lat |
ENVELOPE(140.917,140.917,-66.742,-66.742) |
geographic |
Jules |
geographic_facet |
Jules |
genre |
Aerosol Robotic Network |
genre_facet |
Aerosol Robotic Network |
op_source |
6539 6515 |
op_relation |
Geoscientific Model Development 1991-959X http://hdl.handle.net/10044/1/96462 doi:10.5194/gmd-14-6515-2021 |
op_rights |
© Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/gmd-14-6515-2021 |
container_title |
Geoscientific Model Development |
container_volume |
14 |
container_issue |
10 |
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6515 |
op_container_end_page |
6539 |
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1766042696578760704 |