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Alan J. Hills
Researcher at National Center for Atmospheric Research
Publications - 68
Citations - 2219
Alan J. Hills is an academic researcher from National Center for Atmospheric Research. The author has contributed to research in topics: Isoprene & Environmental science. The author has an hindex of 24, co-authored 61 publications receiving 1698 citations. Previous affiliations of Alan J. Hills include Cooperative Institute for Research in Environmental Sciences.
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Journal ArticleDOI
Eddy covariance measurement of isoprene fluxes
Alex Guenther,Alan J. Hills +1 more
TL;DR: In this paper, a system was developed to directly measure isoprene flux above a forest canopy by eddy covariance using the combination of a fast response, real-time sensor and sonic anemometer.
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Chemical evolution of volatile organic compounds in the outflow of the Mexico City metropolitan area
Eric C. Apel,Louisa K. Emmons,Thomas Karl,Frank Flocke,Alan J. Hills,Sasha Madronich,Julia Lee-Taylor,Alan Fried,Petter Weibring,James Walega,Dirk Richter,X. Tie,L. Mauldin,Teresa Campos,Andrew J. Weinheimer,D. J. Knapp,Barkley C. Sive,Lawrence I. Kleinman,Stephen R. Springston,Rahul A. Zaveri,John V. Ortega,John V. Ortega,Paul B. Voss,Donald R. Blake,A. Baker,Carsten Warneke,D. Welsh-Bon,J. A. de Gouw,Jun Zheng,Renyi Zhang,Jochen Rudolph,W. Junkermann,Daniel D. Riemer +32 more
TL;DR: In this paper, the authors studied the volatile organic compound (VOC) distribution in the Mexico City metropolitan area and its evolution as it is uplifted and transported out of the MCMA basin during the 2006 MILAGRO/MIRAGE-Mex field campaign.
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Atmospheric benzene observations from oil and gas production in the Denver‐Julesburg Basin in July and August 2014
H. S. Halliday,Anne M. Thompson,Anne M. Thompson,Armin Wisthaler,Armin Wisthaler,Donald R. Blake,Rebecca S. Hornbrook,Tomas Mikoviny,Markus Müller,Philipp Eichler,Eric C. Apel,Alan J. Hills +11 more
TL;DR: In this article, high-resolution measurements of volatile organic compounds (VOCs) were collected using a proton-transfer-reaction quadrupole mass spectrometry (PTR-QMS) instrument at the Platteville Atmospheric Observatory (PAO) in Colorado to investigate how oil and natural gas (O&NG) development impacts air quality within the Wattenburg Gas Field (WGF) in the Denver-Julesburg Basin.
Journal ArticleDOI
Measurement and interpretation of isoprene fluxes and isoprene, methacrolein, and methyl vinyl ketone mixing ratios at the PROPHET site during the 1998 Intensive
Eric C. Apel,Daniel D. Riemer,Daniel D. Riemer,Alan J. Hills,W. Baugh,John J. Orlando,Ian Faloona,Ian Faloona,D. Tan,D. Tan,William H. Brune,Brian Lamb,Hal Westberg,Mary Anne Carroll,Troy Thornberry,C. Geron +15 more
TL;DR: In this paper, the mixing ratios of isoprene, methyl vinyl ketone (MVK), and methacrolein (MACR) were determined continuously during an 8-day period in the summer of 1998 at a rural forested site located within the University of Michigan Biological Station (UMBS).
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Global airborne sampling reveals a previously unobserved dimethyl sulfide oxidation mechanism in the marine atmosphere.
Patrick R. Veres,J. Andrew Neuman,J. Andrew Neuman,Timothy H. Bertram,Emmanuel Assaf,Emmanuel Assaf,Glenn M. Wolfe,Glenn M. Wolfe,Christina Williamson,Christina Williamson,Bernadett Weinzierl,Simone Tilmes,Chelsea R. Thompson,Chelsea R. Thompson,A. B. Thames,Jason C. Schroder,Alfonso Saiz-Lopez,Andrew W. Rollins,James M. Roberts,Derek J. Price,Jeff Peischl,Jeff Peischl,Benjamin A. Nault,Kristian H. Møller,D. O. Miller,S. Meinardi,Qinyi Li,Jean-Francois Lamarque,A. Kupc,A. Kupc,A. Kupc,Henrik G. Kjaergaard,Douglas E. Kinnison,Jose L. Jimenez,Christopher M. Jernigan,Rebecca S. Hornbrook,Alan J. Hills,Maximilian Dollner,Douglas A. Day,Carlos A. Cuevas,Pedro Campuzano-Jost,James B. Burkholder,T. Paul Bui,William H. Brune,Steven S. Brown,Charles A. Brock,Ilann Bourgeois,Ilann Bourgeois,Donald R. Blake,Eric C. Apel,Thomas B. Ryerson +50 more
TL;DR: The atmospheric discovery of a previously unquantified DMS oxidation product, hydroperoxymethyl thioformate (HPMTF, HOOCH2SCHO), identified through global-scale airborne observations that demonstrate it to be a major reservoir of marine sulfur.