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Ivan Ortega
Researcher at National Center for Atmospheric Research
Publications - 62
Citations - 1540
Ivan Ortega is an academic researcher from National Center for Atmospheric Research. The author has contributed to research in topics: Environmental science & Differential optical absorption spectroscopy. The author has an hindex of 18, co-authored 54 publications receiving 1117 citations. Previous affiliations of Ivan Ortega include University of Colorado Boulder & National Autonomous University of Mexico.
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Journal ArticleDOI
Global impacts of tropospheric halogens (Cl, Br, I) on oxidants and composition in GEOS-Chem
Tomás Sherwen,Johan A. Schmidt,Mat J. Evans,Lucy J. Carpenter,Katja Großmann,Katja Großmann,Sebastian D. Eastham,Daniel J. Jacob,Barbara Dix,Theodore K. Koenig,Theodore K. Koenig,R. Sinreich,Ivan Ortega,Ivan Ortega,Rainer Volkamer,Rainer Volkamer,Alfonso Saiz-Lopez,C. Prados-Roman,C. Prados-Roman,Anoop S. Mahajan,Carlos Ordóñez +20 more
TL;DR: In this article, the authors present a simulation of the global present-day composition of the troposphere which includes the chemistry of halogens (Cl, Br, I) including emissions of inorganic iodine from the oceans, anthropogenic and biogenic sources of halogenated gases, gas phase chemistry, and a parameterised approach to heterogeneous halogen chemistry.
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Overview of the 2010 Carbonaceous Aerosols and Radiative Effects Study (CARES)
Rahul A. Zaveri,William J. Shaw,Daniel J. Cziczo,Beat Schmid,R. A. Ferrare,M. L. Alexander,Mikhail D. Alexandrov,Raul J. Alvarez,W. P. Arnott,Dean B. Atkinson,Sunil Baidar,Robert M. Banta,James C. Barnard,Josef Beranek,Larry K. Berg,Fred J. Brechtel,W. A. Brewer,John F. Cahill,Brian Cairns,Christopher D. Cappa,Duli Chand,Swarup China,Jennifer M. Comstock,Manvendra K. Dubey,Richard C. Easter,M. H. Erickson,Jerome D. Fast,Cody Floerchinger,B. A. Flowers,Edward C. Fortner,Jeffrey S. Gaffney,M. K. Gilles,Kyle Gorkowski,William I. Gustafson,Madhu Gyawali,J. W. Hair,R. M. Hardesty,J. W. Harworth,Scott C. Herndon,Naruki Hiranuma,Chris A. Hostetler,John M. Hubbe,J. T. Jayne,H. Jeong,Bertram T. Jobson,Evgueni I. Kassianov,Lawrence I. Kleinman,C. Kluzek,B. Knighton,Katheryn R. Kolesar,Chongai Kuang,Alena Kubátová,Andrew O. Langford,Alexander Laskin,Nels S. Laulainen,Richard D. Marchbanks,Claudio Mazzoleni,Fan Mei,Ryan C. Moffet,Danny A. Nelson,Michael D. Obland,Hilke Oetjen,Timothy B. Onasch,Ivan Ortega,M. Ottaviani,Mikhail Pekour,Kimberly A. Prather,J. G. Radney,R. R. Rogers,Scott P. Sandberg,Arthur J. Sedlacek,Christoph J. Senff,Gunnar Senum,Ari Setyan,John E. Shilling,Manish Shrivastava,Chen Song,Stephen R. Springston,R. Subramanian,Kaitlyn J. Suski,Jason Tomlinson,Rainer Volkamer,H. W. Wallace,Jian Wang,A. M. Weickmann,D. R. Worsnop,Xiao-Ying Yu,Alla Zelenyuk,Qi Zhang +88 more
TL;DR: The US Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) program's Carbonaceous Aerosol and Radiative Effects Study (CARES) carried out in June 2010 in Central Valley, California, was a comprehensive effort designed to improve the understanding of the possible interactions between urban and natural emissions in the production and transformation of atmospheric aerosol and the resulting impact on climate change.
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Iodine's impact on tropospheric oxidants: a global model study in GEOS-Chem
Tomás Sherwen,Matthew Evans,Lucy J. Carpenter,Stephen J. Andrews,Richard T. Lidster,Barbara Dix,Theodore K. Koenig,Theodore K. Koenig,R. Sinreich,Ivan Ortega,Ivan Ortega,Rainer Volkamer,Rainer Volkamer,Alfonso Saiz-Lopez,C. Prados-Roman,Anoop S. Mahajan,Carlos Ordóñez +16 more
TL;DR: In this paper, a global simulation of tropospheric iodine chemistry within the GEOS-Chem chemical transport model is presented, which includes organic and inorganic iodine sources, standard gas-phase iodine chemistry, and simplified higher iodine oxide (I2OX, X, X) chemistry, photolysis, deposition, and parametrized heterogeneous reactions.
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Aircraft measurements of BrO, IO, glyoxal, NO 2 , H 2 O, O 2 –O 2 and aerosol extinction profiles in the tropics: comparison with aircraft-/ship-based in situ and lidar measurements
Rainer Volkamer,Rainer Volkamer,Sunil Baidar,Sunil Baidar,Teresa Campos,Sean Coburn,Sean Coburn,Joshua P. DiGangi,Joshua P. DiGangi,Barbara Dix,Edwin W. Eloranta,Theodore K. Koenig,Theodore K. Koenig,Bruce Morley,Ivan Ortega,Ivan Ortega,Bridget R. Pierce,Mike Reeves,R. Sinreich,Siyuan Wang,Siyuan Wang,Siyuan Wang,Mark A. Zondlo,P. Romashkin +23 more
TL;DR: In this paper, the results of two research flights (RF12, RF17) over the tropical Eastern Pacific Ocean (tEPO) as part of the "Tropical Ocean tRoposphere Exchange of Reactive halogens and Oxygenated hydrocarbons" (TORERO) project are presented.
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The CU Airborne MAX-DOAS instrument: vertical profiling of aerosol extinction and trace gases
Sunil Baidar,Sunil Baidar,Hilke Oetjen,Hilke Oetjen,Sean Coburn,Barbara Dix,Ivan Ortega,R. Sinreich,Rainer Volkamer,Rainer Volkamer +9 more
TL;DR: The CU AMAX-DOAS instrument as discussed by the authors uses solar stray light to detect and quantify multiple trace gases, including nitrogen dioxide (NO2), glyoxal (CHOCHO), formaldehyde (HCHO), water vapor (H2O), nitrous acid (HONO), iodine monoxide (IO), bromine monoxide(BrO), and oxygen dimers (O4) at multiple wavelengths (absorption bands at 360, 477, 577, 632 nm).