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000904157 1001_ $$00000-0002-8110-5714$$aWang, Siyuan$$b0$$eCorresponding author
000904157 245__ $$aChemical Tomography in a Fresh Wildland Fire Plume: A Large Eddy Simulation (LES) Study
000904157 260__ $$aHoboken, NJ$$bWiley$$c2021
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000904157 520__ $$aWildland fires involve complicated processes that are challenging to represent in chemical transport models. Recent airborne measurements reveal remarkable chemical tomography in fresh wildland fire plumes, which remain yet to be fully explored using models. Here, we present a high-resolution large eddy simulation model coupled to chemistry to study the chemical evolution in fresh wildland fire plume. The model is configured for a large fire heavily sampled during the Fire Influence on Regional to Global Environments and Air Quality field campaign, and a variety of airborne measurements are used to evaluate the chemical heterogeneity revealed by the model. We show that the model captures the observed cross-transect variations of a number of compounds quite well, including ozone (O3), nitrous acid (HONO), and peroxyacetyl nitrate. The combined observational and modeling results suggest that the top and edges of fresh plume drive the photochemistry, while dark chemistry is also present but in the lower part of the plume. The model spatial resolution is shown to be very important as it may shift the chemical regime, leading to biases in O3 and NOx chemistry. Based on findings in this work, we speculate that the impact of small fires on air quality may be largely underestimated in models with coarse spatial resolutions.
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000904157 7001_ $$00000-0002-5763-1925$$aCoggon, Matthew M.$$b1
000904157 7001_ $$0P:(DE-Juel1)184937$$aGkatzelis, Georgios$$b2
000904157 7001_ $$00000-0003-3811-8496$$aWarneke, Carsten$$b3
000904157 7001_ $$00000-0002-2875-1258$$aBourgeois, Ilann$$b4
000904157 7001_ $$00000-0003-2800-7581$$aRyerson, Thomas$$b5
000904157 7001_ $$00000-0002-9320-7101$$aPeischl, Jeff$$b6
000904157 7001_ $$00000-0001-7539-353X$$aVeres, Patrick R.$$b7
000904157 7001_ $$00000-0002-3986-1727$$aNeuman, J. Andrew$$b8
000904157 7001_ $$00000-0002-9672-1237$$aHair, Johnathan$$b9
000904157 7001_ $$0P:(DE-HGF)0$$aShingler, Taylor$$b10
000904157 7001_ $$00000-0001-6088-6200$$aFenn, Marta$$b11
000904157 7001_ $$00000-0002-3617-0269$$aDiskin, Glenn$$b12
000904157 7001_ $$00000-0002-0518-7690$$aHuey, L. Greg$$b13
000904157 7001_ $$0P:(DE-HGF)0$$aLee, Young Ro$$b14
000904157 7001_ $$00000-0001-9421-818X$$aApel, Eric C.$$b15
000904157 7001_ $$00000-0002-6304-6554$$aHornbrook, Rebecca S.$$b16
000904157 7001_ $$0P:(DE-HGF)0$$aHills, Alan J.$$b17
000904157 7001_ $$00000-0002-2060-7112$$aHall, Samuel R.$$b18
000904157 7001_ $$00000-0002-4724-9634$$aUllmann, Kirk$$b19
000904157 7001_ $$00000-0002-3998-9990$$aBela, Megan M.$$b20
000904157 7001_ $$00000-0002-1668-2961$$aTrainer, Michael K.$$b21
000904157 7001_ $$00000-0002-3135-9556$$aKumar, Rajesh$$b22
000904157 7001_ $$00000-0003-2879-0844$$aOrlando, John J.$$b23
000904157 7001_ $$00000-0002-2661-6394$$aFlocke, Frank M.$$b24
000904157 7001_ $$0P:(DE-HGF)0$$aEmmons, Louisa K.$$b25
000904157 773__ $$0PERI:(DE-600)2016800-7$$a10.1029/2021JD035203$$gVol. 126, no. 18$$n18$$pe2021JD035203$$tJournal of geophysical research / D$$v126$$x0148-0227$$y2021
000904157 8564_ $$uhttps://juser.fz-juelich.de/record/904157/files/JGR%20Atmospheres%20-%202021%20-%20Wang%20-%20Chemical%20Tomography%20in%20a%20Fresh%20Wildland%20Fire%20Plume%20A%20Large%20Eddy%20Simulation%20LES%20Study-2.pdf$$yPublished on 2021-09-27. Available in OpenAccess from 2022-03-27.
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