Production of lightning NOx and its vertical distribution calculated from three-dimensional cloud-scale chemical transport model simulations

Handle URI:
http://hdl.handle.net/10754/552104
Title:
Production of lightning NOx and its vertical distribution calculated from three-dimensional cloud-scale chemical transport model simulations
Authors:
Ott, Lesley E.; Pickering, Kenneth E.; Stenchikov, Georgiy L. ( 0000-0001-9033-4925 ) ; Allen, Dale J.; DeCaria, Alex J.; Ridley, Brian; Lin, Ruei-Fong; Lang, Stephen; Tao, Wei-Kuo
Abstract:
A three-dimensional (3-D) cloud-scale chemical transport model that includes a parameterized source of lightning NOx on the basis of observed flash rates has been used to simulate six midlatitude and subtropical thunderstorms observed during four field projects. Production per intracloud (PIC) and cloud-to-ground (PCG) flash is estimated by assuming various values of PIC and PCG for each storm and determining which production scenario yields NOx mixing ratios that compare most favorably with in-cloud aircraft observations. We obtain a mean PCG value of 500 moles NO (7 kg N) per flash. The results of this analysis also suggest that on average, PIC may be nearly equal to PCG, which is contrary to the common assumption that intracloud flashes are significantly less productive of NO than are cloud-to-ground flashes. This study also presents vertical profiles of the mass of lightning NOx after convection based on 3-D cloud-scale model simulations. The results suggest that following convection, a large percentage of lightning NOx remains in the middle and upper troposphere where it originated, while only a small percentage is found near the surface. The results of this work differ from profiles calculated from 2-D cloud-scale model simulations with a simpler lightning parameterization that were peaked near the surface and in the upper troposphere (referred to as a “C-shaped” profile). The new model results (a backward C-shaped profile) suggest that chemical transport models that assume a C-shaped vertical profile of lightning NOx mass may place too much mass near the surface and too little in the middle troposphere.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Production of lightning NOx and its vertical distribution calculated from three-dimensional cloud-scale chemical transport model simulations 2010, 115 (D4) Journal of Geophysical Research
Publisher:
Wiley-Blackwell
Journal:
Journal of Geophysical Research
Issue Date:
18-Feb-2010
DOI:
10.1029/2009JD011880
Type:
Article
ISSN:
0148-0227
Additional Links:
http://doi.wiley.com/10.1029/2009JD011880
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorOtt, Lesley E.en
dc.contributor.authorPickering, Kenneth E.en
dc.contributor.authorStenchikov, Georgiy L.en
dc.contributor.authorAllen, Dale J.en
dc.contributor.authorDeCaria, Alex J.en
dc.contributor.authorRidley, Brianen
dc.contributor.authorLin, Ruei-Fongen
dc.contributor.authorLang, Stephenen
dc.contributor.authorTao, Wei-Kuoen
dc.date.accessioned2015-05-03T14:13:19Zen
dc.date.available2015-05-03T14:13:19Zen
dc.date.issued2010-02-18en
dc.identifier.citationProduction of lightning NOx and its vertical distribution calculated from three-dimensional cloud-scale chemical transport model simulations 2010, 115 (D4) Journal of Geophysical Researchen
dc.identifier.issn0148-0227en
dc.identifier.doi10.1029/2009JD011880en
dc.identifier.urihttp://hdl.handle.net/10754/552104en
dc.description.abstractA three-dimensional (3-D) cloud-scale chemical transport model that includes a parameterized source of lightning NOx on the basis of observed flash rates has been used to simulate six midlatitude and subtropical thunderstorms observed during four field projects. Production per intracloud (PIC) and cloud-to-ground (PCG) flash is estimated by assuming various values of PIC and PCG for each storm and determining which production scenario yields NOx mixing ratios that compare most favorably with in-cloud aircraft observations. We obtain a mean PCG value of 500 moles NO (7 kg N) per flash. The results of this analysis also suggest that on average, PIC may be nearly equal to PCG, which is contrary to the common assumption that intracloud flashes are significantly less productive of NO than are cloud-to-ground flashes. This study also presents vertical profiles of the mass of lightning NOx after convection based on 3-D cloud-scale model simulations. The results suggest that following convection, a large percentage of lightning NOx remains in the middle and upper troposphere where it originated, while only a small percentage is found near the surface. The results of this work differ from profiles calculated from 2-D cloud-scale model simulations with a simpler lightning parameterization that were peaked near the surface and in the upper troposphere (referred to as a “C-shaped” profile). The new model results (a backward C-shaped profile) suggest that chemical transport models that assume a C-shaped vertical profile of lightning NOx mass may place too much mass near the surface and too little in the middle troposphere.en
dc.publisherWiley-Blackwellen
dc.relation.urlhttp://doi.wiley.com/10.1029/2009JD011880en
dc.rightsArchived with thanks to Journal of Geophysical Researchen
dc.subjectlightningen
dc.subjectNOxen
dc.titleProduction of lightning NOx and its vertical distribution calculated from three-dimensional cloud-scale chemical transport model simulationsen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalJournal of Geophysical Researchen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionGoddard Earth Science and Technology Center, University of Maryland, Baltimore County, Baltimore, Maryland, USAen
dc.contributor.institutionAtmospheric Chemistry and Dynamics Branch, NASA Goddard Space Flight Center, Greenbelt, Maryland, USAen
dc.contributor.institutionDepartment of Environmental Sciences, Rutgers University, New Brunswick, New Jersey, USAen
dc.contributor.institutionDepartment of Atmospheric and Oceanic Science, University of Maryland, College Park, Maryland, USAen
dc.contributor.institutionDepartment of Earth Sciences, Millersville University, Millersville, Pennsylvania, USAen
dc.contributor.institutionAtmospheric Chemistry Division, National Center for Atmospheric Research, Boulder, Colorado, USAen
dc.contributor.institutionScience Systems and Applications, Inc., Greenbelt, Maryland, USAen
dc.contributor.institutionMesoscale Atmospheric Processes Branch, NASA Goddard Space Flight Center, Greenbelt, Maryland, USAen
kaust.authorStenchikov, Georgiy L.en
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