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The contribution of natural and anthropogenic very short-lived species to stratospheric bromine

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The contribution of natural and anthropogenic very short-lived species to stratospheric bromine. / Hossaini, R.; Chipperfield, M. P.; Feng, W.; Breider, T. J.; Atlas, E.; Montzka, S. A.; Miller, B. R.; Moore, F.; Elkins, J.

In: Atmospheric Chemistry and Physics , Vol. 12, No. 1, 05.01.2012, p. 371-380.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Hossaini, R, Chipperfield, MP, Feng, W, Breider, TJ, Atlas, E, Montzka, SA, Miller, BR, Moore, F & Elkins, J 2012, 'The contribution of natural and anthropogenic very short-lived species to stratospheric bromine', Atmospheric Chemistry and Physics , vol. 12, no. 1, pp. 371-380. https://doi.org/10.5194/acp-12-371-2012

APA

Hossaini, R., Chipperfield, M. P., Feng, W., Breider, T. J., Atlas, E., Montzka, S. A., Miller, B. R., Moore, F., & Elkins, J. (2012). The contribution of natural and anthropogenic very short-lived species to stratospheric bromine. Atmospheric Chemistry and Physics , 12(1), 371-380. https://doi.org/10.5194/acp-12-371-2012

Vancouver

Hossaini R, Chipperfield MP, Feng W, Breider TJ, Atlas E, Montzka SA et al. The contribution of natural and anthropogenic very short-lived species to stratospheric bromine. Atmospheric Chemistry and Physics . 2012 Jan 5;12(1):371-380. https://doi.org/10.5194/acp-12-371-2012

Author

Hossaini, R. ; Chipperfield, M. P. ; Feng, W. ; Breider, T. J. ; Atlas, E. ; Montzka, S. A. ; Miller, B. R. ; Moore, F. ; Elkins, J. / The contribution of natural and anthropogenic very short-lived species to stratospheric bromine. In: Atmospheric Chemistry and Physics . 2012 ; Vol. 12, No. 1. pp. 371-380.

Bibtex

@article{aacf723aaae7455a940d6a1cd2e3a5bf,
title = "The contribution of natural and anthropogenic very short-lived species to stratospheric bromine",
abstract = "We have used a global three-dimensional chemical transport model to quantify the impact of the very short-lived substances (VSLS) CHBr3, CH2Br2, CHBr2Cl, CHBrCl2, CH2BrCl and C2H5Br on the bromine budget of the stratosphere. Atmospheric observations of these gases allow constraints on surface mixing ratios that, when incorporated into our model, contribute similar to 4.9-5.2 parts per trillion (ppt) of inorganic bromine (Br-y) to the stratosphere. Of this total, similar to 76% comes from naturally-emitted CHBr3 and CH2Br2. The remaining species individually contribute modest amounts. However, their accumulated total accounts for up to similar to 1.2 ppt of the supply and thus should not be ignored. We have compared modelled tropical profiles of a range of VSLS with observations from the recent 2009 NSF HIPPO-1 aircraft campaign. Modelled profiles agree reasonably well with observations from the surface to the lower tropical tropopause layer.We have also considered the poorly studied anthropogenic VSLS, C2H5Br, CH2BrCH2Br, n-C3H7Br and i-C3H7Br. We find the local atmospheric lifetime of these species in the tropical tropopause layer are similar to 183, 603, 39 and 49 days, respectively. These species, particularly C2H5Br and CH2BrCH2Br, would thus be important carriers of bromine to the stratosphere if emissions were to increase substantially. Our model shows similar to 70-73% and similar to 80-85% of bromine from these species in the tropical boundary layer can reach the lower stratosphere.",
keywords = "CHEMICAL-TRANSPORT MODEL, UPPER TROPOSPHERE, TRACER TRANSPORT, DEEP CONVECTION, BR-Y, VALIDATION, SUBSTANCES, BROMOFORM, SCHEMES, TROPICS",
author = "R. Hossaini and Chipperfield, {M. P.} and W. Feng and Breider, {T. J.} and E. Atlas and Montzka, {S. A.} and Miller, {B. R.} and F. Moore and J. Elkins",
year = "2012",
month = jan,
day = "5",
doi = "10.5194/acp-12-371-2012",
language = "English",
volume = "12",
pages = "371--380",
journal = "Atmospheric Chemistry and Physics ",
issn = "1680-7316",
publisher = "Copernicus GmbH (Copernicus Publications) on behalf of the European Geosciences Union (EGU)",
number = "1",

}

RIS

TY - JOUR

T1 - The contribution of natural and anthropogenic very short-lived species to stratospheric bromine

AU - Hossaini, R.

AU - Chipperfield, M. P.

AU - Feng, W.

AU - Breider, T. J.

AU - Atlas, E.

AU - Montzka, S. A.

AU - Miller, B. R.

AU - Moore, F.

AU - Elkins, J.

PY - 2012/1/5

Y1 - 2012/1/5

N2 - We have used a global three-dimensional chemical transport model to quantify the impact of the very short-lived substances (VSLS) CHBr3, CH2Br2, CHBr2Cl, CHBrCl2, CH2BrCl and C2H5Br on the bromine budget of the stratosphere. Atmospheric observations of these gases allow constraints on surface mixing ratios that, when incorporated into our model, contribute similar to 4.9-5.2 parts per trillion (ppt) of inorganic bromine (Br-y) to the stratosphere. Of this total, similar to 76% comes from naturally-emitted CHBr3 and CH2Br2. The remaining species individually contribute modest amounts. However, their accumulated total accounts for up to similar to 1.2 ppt of the supply and thus should not be ignored. We have compared modelled tropical profiles of a range of VSLS with observations from the recent 2009 NSF HIPPO-1 aircraft campaign. Modelled profiles agree reasonably well with observations from the surface to the lower tropical tropopause layer.We have also considered the poorly studied anthropogenic VSLS, C2H5Br, CH2BrCH2Br, n-C3H7Br and i-C3H7Br. We find the local atmospheric lifetime of these species in the tropical tropopause layer are similar to 183, 603, 39 and 49 days, respectively. These species, particularly C2H5Br and CH2BrCH2Br, would thus be important carriers of bromine to the stratosphere if emissions were to increase substantially. Our model shows similar to 70-73% and similar to 80-85% of bromine from these species in the tropical boundary layer can reach the lower stratosphere.

AB - We have used a global three-dimensional chemical transport model to quantify the impact of the very short-lived substances (VSLS) CHBr3, CH2Br2, CHBr2Cl, CHBrCl2, CH2BrCl and C2H5Br on the bromine budget of the stratosphere. Atmospheric observations of these gases allow constraints on surface mixing ratios that, when incorporated into our model, contribute similar to 4.9-5.2 parts per trillion (ppt) of inorganic bromine (Br-y) to the stratosphere. Of this total, similar to 76% comes from naturally-emitted CHBr3 and CH2Br2. The remaining species individually contribute modest amounts. However, their accumulated total accounts for up to similar to 1.2 ppt of the supply and thus should not be ignored. We have compared modelled tropical profiles of a range of VSLS with observations from the recent 2009 NSF HIPPO-1 aircraft campaign. Modelled profiles agree reasonably well with observations from the surface to the lower tropical tropopause layer.We have also considered the poorly studied anthropogenic VSLS, C2H5Br, CH2BrCH2Br, n-C3H7Br and i-C3H7Br. We find the local atmospheric lifetime of these species in the tropical tropopause layer are similar to 183, 603, 39 and 49 days, respectively. These species, particularly C2H5Br and CH2BrCH2Br, would thus be important carriers of bromine to the stratosphere if emissions were to increase substantially. Our model shows similar to 70-73% and similar to 80-85% of bromine from these species in the tropical boundary layer can reach the lower stratosphere.

KW - CHEMICAL-TRANSPORT MODEL

KW - UPPER TROPOSPHERE

KW - TRACER TRANSPORT

KW - DEEP CONVECTION

KW - BR-Y

KW - VALIDATION

KW - SUBSTANCES

KW - BROMOFORM

KW - SCHEMES

KW - TROPICS

U2 - 10.5194/acp-12-371-2012

DO - 10.5194/acp-12-371-2012

M3 - Journal article

VL - 12

SP - 371

EP - 380

JO - Atmospheric Chemistry and Physics

JF - Atmospheric Chemistry and Physics

SN - 1680-7316

IS - 1

ER -