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Forest fire plumes over the North Atlantic: p-TOMCAT model simulations with aircraft and satellite measurements from the ITOP/ICARTT campaign

Cook, Peter A. and Savage, Nicholas H. and Turquety, Soléne and Carver, Glenn D. and O’Connor, Fiona M. and Heckel, Andreas and Stewart, David and Whalley, Lisa K. and Parker, Alex E. and Schlager, Hans and Singh, Hanwant B. and Avery, Melody A. and Sachse, Glen W. and Brune, William and Richter, Andreas and Burrows, John P. and Purvis, Ruth and Lewi, Alastair C. and Reeves, Claire E. and Monks, Paul S. and Levine, James G. and Pyle, John A. (2007) Forest fire plumes over the North Atlantic: p-TOMCAT model simulations with aircraft and satellite measurements from the ITOP/ICARTT campaign. Journal of Geophysical Research, 112 (D10S43), pp. 1-20. DOI: 10.1029/2006JD007563.

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Official URL: http://www.agu.org/journals/ABS/2007/2006JD007563.shtml

Abstract

Intercontinental Transport of Ozone and Precursors (ITOP) (part of International Consortium for Atmospheric Research on Transport and Transformation (ICARTT)) was an intense research effort to measure long-range transport of pollution across the North Atlantic and its impact on O3 production. During the aircraft campaign plumes were encountered containing large concentrations of CO plus other tracers and aerosols from forest fires in Alaska and Canada. A chemical transport model, p-TOMCAT, and new biomass burning emissions inventories are used to study the emissions long-range transport and their impact on the troposphere O3 budget. The fire plume structure is modeled well over long distances until it encounters convection over Europe. The CO values within the simulated plumes closely match aircraft measurements near North America and over the Atlantic and have good agreement with MOPITT CO data. O3 and NOx values were initially too great in the model plumes. However, by including additional vertical mixing of O3 above the fires, and using a lower NO2/CO emission ratio (0.008) for boreal fires, O3 concentrations are reduced closer to aircraft measurements, with NO2 closer to SCIAMACHY data. Too little PAN is produced within the simulated plumes, and our VOC scheme’s simplicity may be another reason for O3 and NOx modeldata discrepancies. In the p-TOMCAT simulations the fire emissions lead to increased tropospheric O3 over North America, the north Atlantic and western Europe from photochemical production and transport. The increased O3 over the Northern Hemisphere in the simulations reaches a peak in July 2004 in the range 2.0 to 6.2 Tg over a baseline of about 150 Tg.

Document Type:Article
Title:Forest fire plumes over the North Atlantic: p-TOMCAT model simulations with aircraft and satellite measurements from the ITOP/ICARTT campaign
Authors:
AuthorsInstitution or Email of Authors
Cook, Peter A.Univ. of Cambridge, Cambridge, UK
Savage, Nicholas H.Univ. of Cambridge, Cambridge, UK
Turquety, SoléneHarvard Univ., Cambridge, MA, USA
Carver, Glenn D.Univ. of Cambridge, Cambridge, UK
O’Connor, Fiona M.Univ. of Cambridge, Cambridge, UK
Heckel, AndreasUniv. of Bremen, Bremen
Stewart, DavidUniv. of East Anglia, Norwich, UK
Whalley, Lisa K.Univ. of Leeds, Leeds, UK
Parker, Alex E.Univ. of Leicester, Leicester, UK
Schlager, HansUNSPECIFIED
Singh, Hanwant B.NASA Ames Research Center,, Moffett Field, CA, USA
Avery, Melody A.NASA Langley Research Center, Hampton, VA, USA
Sachse, Glen W.NASA Langley Research Center, Hampton, VA, UAS
Brune, WilliamPennsylvania State Univ., University Park, PA, USA
Richter, AndreasUniv. of Bremen, Bremen
Burrows, John P.Univ. of Bremen, Bremen
Purvis, RuthFAAM, Cranfield, UK
Lewi, Alastair C.University of York, York, UK
Reeves, Claire E.Univ. of East Anglia, Norwich, UK
Monks, Paul S.Univ. of Leicester, Leicester, UK
Levine, James G.Univ. of Cambridge, Cambridge, UK
Pyle, John A.Univ. of Cambridge, Cambridge, UK
Date:2007
Journal or Publication Title:Journal of Geophysical Research
Volume:112
DOI:10.1029/2006JD007563
Page Range:pp. 1-20
Status:Published
Keywords:ozone transport, chemical transport model, p-TOMCAT model
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:ATM and Operation
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Climate, Weather and Environment
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Jana Freund
Deposited On:27 Jun 2007
Last Modified:12 Dec 2013 20:25

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