S
Samuel R. Hall
Researcher at National Center for Atmospheric Research
Publications - 139
Citations - 6623
Samuel R. Hall is an academic researcher from National Center for Atmospheric Research. The author has contributed to research in topics: Troposphere & Ozone. The author has an hindex of 41, co-authored 126 publications receiving 5343 citations. Previous affiliations of Samuel R. Hall include Food and Drug Administration.
Papers
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Journal ArticleDOI
Oxidation of mercury by bromine in the subtropical Pacific free troposphere
Lynne E. Gratz,J. L. Ambrose,Daniel A. Jaffe,Viral Shah,Lyatt Jaeglé,Jochen Stutz,James Festa,Max Spolaor,Catalina Tsai,Noelle E. Selin,Shaojie Song,Xianliang Zhou,Xianliang Zhou,Andrew J. Weinheimer,D. J. Knapp,Denise D. Montzka,Frank Flocke,Teresa Campos,Eric C. Apel,Rebecca S. Hornbrook,Nicola J. Blake,Samuel R. Hall,Geoffrey S. Tyndall,Mike Reeves,Daniel M. Stechman,Meghan Stell +25 more
TL;DR: In this paper, the presence of elevated oxidized mercury was found to be consistent with oxidation of elemental mercury by bromine atoms in this subsiding upper tropospheric air mass within the subtropical Pacific High.
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The relative importance of chlorine and bromine radicals in the oxidation of atmospheric mercury at Barrow, Alaska
C. R. Stephens,Paul B. Shepson,Alexandra Steffen,Jan W. Bottenheim,Jin Liao,L. Greg Huey,Eric C. Apel,Andrew J. Weinheimer,Samuel R. Hall,Christopher A. Cantrell,Barkley C. Sive,Barkley C. Sive,D. J. Knapp,Denise D. Montzka,Rebecca S. Hornbrook +14 more
TL;DR: In this paper, the authors used field measurements from the Ocean-Atmosphere-Sea Ice-Snowpack (OASIS) 2009 field campaign of GEM, RGM, ozone, and a large suite of both inorganic halogen and volatile organic compounds.
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Evaluation of HOx sources and cycling using measurement-constrained model calculations in a 2-methyl-3-butene-2-ol (MBO) and monoterpene (MT) dominated ecosystem
Sun Whe Kim,Sun Whe Kim,Glenn M. Wolfe,Glenn M. Wolfe,Glenn M. Wolfe,Lee Mauldin,Lee Mauldin,Lee Mauldin,Christopher A. Cantrell,Alex Guenther,Thomas Karl,A. Turnipseed,Jim Greenberg,Samuel R. Hall,Kirk Ullmann,Eric C. Apel,Rebecca S. Hornbrook,Yoshizumi Kajii,Yoshizumi Kajii,Yoshihiro Nakashima,Yoshihiro Nakashima,Frank N. Keutsch,Joshua P. DiGangi,S. B. Henry,Lisa Kaser,R. Schnitzhofer,Martin Graus,Martin Graus,Armin Hansel,W. Zheng,F. F. Flocke +30 more
TL;DR: In this paper, a detailed analysis of OH observations from the BEACHON (Bio-hydro-atmosphere interactions of Energy, Aerosols, Carbon, H2O, Organics and Nitrogen)- ROCS (Rocky Mountain Organic Carbon Study) 2010 field campaign at the Manitou Forest Observatory (MFO), which is a 2-methyl-3-butene-2-ol (MBO) and monoterpene (MT) dominated forest environment.
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Global and regional effects of the photochemistry of CH 3 O 2 NO 2 : evidence from ARCTAS
Eleanor C. Browne,Anne E. Perring,Anne E. Perring,Anne E. Perring,Paul J. Wooldridge,Eric C. Apel,Samuel R. Hall,L. G. Huey,J. Mao,K. M. Spencer,J. M. St. Clair,Andrew J. Weinheimer,Armin Wisthaler,Ronald C. Cohen +13 more
TL;DR: In this paper, the authors investigated the regional and global effects of CH3O2NO2 by including its chemistry in the GEOS-Chem 3-D global chemical transport model.
Journal ArticleDOI
The Convective Transport of Active Species in the Tropics (CONTRAST) Experiment
Laura L. Pan,Elliot Atlas,Ross J. Salawitch,Shawn B. Honomichl,James F. Bresch,William J. Randel,Eric C. Apel,Rebecca S. Hornbrook,Andrew J. Weinheimer,Daniel C. Anderson,Stephen J. Andrews,Sunil Baidar,Stuart Beaton,Teresa Campos,Lucy J. Carpenter,Dexian Chen,Barbara Dix,Valeria Donets,Samuel R. Hall,Thomas F. Hanisco,Cameron R. Homeyer,L. G. Huey,Jørgen Jensen,Lisa Kaser,Douglas E. Kinnison,Theodore K. Koenig,Jean-Francois Lamarque,Chuntao Liu,Jiali Luo,Jiali Luo,Zhengzhao Johnny Luo,Denise D. Montzka,Julie M. Nicely,R. B. Pierce,Daniel D. Riemer,T. Robinson,P. Romashkin,Alfonso Saiz-Lopez,Sue M. Schauffler,O. Shieh,M. H. Stell,M. H. Stell,Kirk Ullmann,Geraint Vaughan,Rainer Volkamer,Glenn M. Wolfe,Glenn M. Wolfe +46 more
TL;DR: Together, CONTRAST, ATTREX and CAST, using complementary capabilities of the three aircraft platforms as well as ground-based instrumentation, provide a comprehensive quantification of the regional distribution and vertical structure of natural and pollutants trace gases in the TWP during NH winter, from the oceanic boundary to the lower stratosphere.