Cooperative Institute for Research in Environmental Sciences at the University of Colorado Boulder

Rainer Volkamer

Research Interests

As Professor at the University of Colorado (Chemistry Department) in Boulder, Colorado my teaching in Instrumental Analysis with Environmental Emphasis (undergraduate level), and Analytical Spectroscopy (graduate level) is often enhanced by my research in Atmospheric Chemistry to inform Chemistry-Climate interactions, Energy & the Environment. My research group develops instrumentation (in-situ optical spectroscopy & sub-orbital remote sensing) to solve Analytical & Physical Chemistry problems in the real-world, e.g., to better quantify sources (air-sea exchange, urban, agriculture, biomass burning, etc), characterize aerosols (optical closure), and to probe mechanisms by which gases modify aerosols, oxidative capacity, atmospheric mercury, tropospheric O3, and CH4.

Current Research

  • Tropospheric Halogens in the Remote Free Troposphere and UTLS
  • Chemical Coupling of Halogens and Oxygenated Volatile Organic Compounds
  • Solar Occultation Flux Spectroscopy aboard the Wyoming King Air
  • The CLOUD experiment: Anthropogenic and Marine Nucleation
  • Molecular Spectroscopy: weak bands of H2O and O2-O2 collision complexes

 



The Cosmics Leaving Outdoor Droplets (CLOUD) experiment at CERN, Geneva uses an ultraclean chamber facility to study how gases form new particles (nucleation), and grow to affect cloud formation.

Honors and Awards

  • Friedrich Wilhelm Bessel Research Award (2020)
  • AGU ASCENT Award (2019)
  • Karlsruhe Institute of Technology Distinguished International Scientist Fellowship Award (2014)
  • ISI Highly Cited Researcher (2014)
  • NSF CAREER Award recipient (2009)
  • Feodor-Lynen Fellow (2005-2007)
  • Henry & Camille Dreyfus Fellow (2002-2004)
  • Marie Curie Fellow (1998-2000)
  • Erasmus Fellow (1992-1993)

View Publications

  • Theys, N; Volkamer, R; Muller, JF; Zarzana, KJ; Kille, N; Clarisse, L; De Smedt, I; Lerot, C; Finkenzeller, H; Hendrick, F; Koenig, TK; Lee, CF; Knote, C; Yu, H; Van Roozendael, M. (Oct 2020). Global nitrous acid emissions and levels of regional oxidants enhanced by wildfires. NATURE GEOSCIENCE , 13(10). 10.1038/s41561-020-0637-7
  • Wang, MY; Kong, WM; Marten, R; He, XC; Chen, DX; Pfeifer, J; Heitto, A; Kontkanen, J; Dada, L; Kurten, A; Yli-Juuti, T; Manninen, HE; Amanatidis, S; Amorim, A; Baalbaki, R; Baccarini, A; Bell, DM; Bertozzi, B; Br?kling, S; Brilke, S; Murillo, LC; Chiu, R; Chu, BW; De Menezes, LP; Duplissy, J; Finkenzeller, H; Carracedo, LG; Granzin, M; Guida, R; Hansel, A; Hofbauer, V; Krechmer, J; Lehtipalo, K; Lamkaddam, H; Lampim?ki, M; Lee, CP; Makhmutov, V; Marie, G; Mathot, S; Mauldin, RL; Mentler, B; Muller, T; Onnela, A; Partoll, E; Pet?j?, T; Philippov, M; Pospisilova, V; Ranjithkumar, A; Rissanen, M; R?rup, B; Scholz, W; Shen, JL; Simon, M; Sipil?, M; Steiner, G; Stolzenburg, D; Tham, YJ; Tom?, A; Wagner, AC; Wang, DYS; Wang, YH; Weber, SK; Winkler, PM; Wlasits, PJ; Wu, YH; Xiao, M; Ye, Q; Zauner-Wieczorek, M; Zhou, XQ; Volkamer, R; Riipinen, I; Dommen, J; Curtius, J; Baltensperger, U; Kulmala, M; Worsnop, DR; Kirkby, J; Seinfeld, JH; El-Haddad, I; Flagan, RC; Donahue, NM. (May 2020). Rapid growth of new atmospheric particles by nitric acid and ammonia condensation. NATURE , 581(7807). 10.1038/s41586-020-2270-4
  • Ye, Q; Wang, MY; Hofbauer, V; Stolzenburg, D; Chen, DX; Schervish, M; Vogel, A; Mauldin, RL; Baalbaki, R; Brilke, S; Dada, L; Dias, A; Duplissy, J; El Haddad, I; Finkenzeller, H; Fischer, L; He, XC; Kim, C; Kurten, A; Lamkaddam, H; Lee, CP; Lehtipalo, K; Leiminger, M; Manninen, HE; Marten, R; Mentler, B; Partoll, E; Petaja, T; Rissanen, M; Schobesberger, S; Schuchmann, S; Simon, M; Tham, YJ; Vazquez-Pufleau, M; Wagner, AC; Wang, YH; Wu, YS; Xiao, M; Baltensperger, U; Curtius, J; Flagan, R; Kirkby, J; Kulmala, M; Volkamer, R; Winkler, PM; Worsnop, D; Donahue, NM. (5-Nov 2019). Molecular Composition and Volatility of Nucleated Particles from alpha-Pinene Oxidation between-50 degrees C and+25 degrees C. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 53(21), 12357-12365. 10.1021/acs.est.9b03265
  • Cai, CX; Avise, J; Kaduwela, A; DaMassa, J; Warneke, C; Gilman, JB; Kuster, W; de Gouw, J; Volkamer, R; Stevens, P; Lefer, B; Holloway, JS; Pollack, IB; Ryerson, T; Atlas, E; Blake, D; Rappenglueck, B; Brown, SS; Dube, WP. (27-Mar 2019). Simulating the Weekly Cycle of NOx-VOC-HOx-O-3 Photochemical System in the South Coast of California During CalNex-2010 Campaign. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 124(6), 3532-3555. 10.1029/2018JD029859
  • Arroyo, PC; Aellig, R; Alpert, PA; Volkamer, R; Ammann, M. (27-Aug 2019). Halogen activation and radical cycling initiated by imidazole-2-carboxaldehyde photochemistry. ATMOSPHERIC CHEMISTRY AND PHYSICS, 19(16), 10817-10828. 10.5194/acp-19-10817-2019
  • Karman, T; Gordon, IE; van der Avoird, A; Baranov, YI; Boulet, C; Drouin, BJ; Groenenboom, GC; Gustafsson, M; Hartmann, JM; Kurucz, RL; Rothman, LS; Sun, K; Sung, K; Thalman, R; Tran, H; Wishnow, EH; Wordsworth, R; Vigasin, AA; Volkamer, R; van der Zande, WJ. (AUG 2019). Update of the HITRAN collision-induced absorption section. ICARUS, 328, 160-175. 10.1016/j.icarus.2019.02.034
  • Kille, N; Chiu, R; Frey, M; Hase, F; She, MK; Blumenstock, T; Hannigan, JW; Orphal, J; Bon, D; Volkamer, R. (16-Apr 2019). Separation of Methane Emissions From Agricultural and Natural Gas Sources in the Colorado Front Range. GEOPHYSICAL RESEARCH LETTERS, 46(7), 3990-3998. 10.1029/2019GL082132
  • Zhu, L; Jacob, DJ; Eastham, SD; Sulprizio, MP; Wang, X; Sherwen, T; Evans, MJ; Chen, QJ; Alexander, B; Koenig, TK; Volkamer, R; Huey, LG; Le Breton, M; Bannan, TJ; Percival, CJ. (16-May 2019). Effect of sea salt aerosol on tropospheric bromine chemistry. ATMOSPHERIC CHEMISTRY AND PHYSICS, 19(9), 6497-6507. 10.5194/acp-19-6497-2019
  • Badia, A; Reeves, CE; Baker, AR; Saiz-Lopez, A; Volkamer, R; Koenig, TK; Apel, EC; Hornbrook, RS; Carpenter, LJ; Andrews, SJ; Sherwen, T; von Glasow, R. (12-Mar 2019). Importance of reactive halogens in the tropical marine atmosphere: a regional modelling study using WRF-Chem. ATMOSPHERIC CHEMISTRY AND PHYSICS, 19(5), 3161-3189. 10.5194/acp-19-3161-2019
  • Lehtipalo, K; Yan, C; Dada, L; Bianchi, F; Xiao, M; Wagner, R; Stolzenburg, D; Ahonen, LR; Amorim, A; Baccarini, A; Bauer, PS; Baumgartner, B; Bergen, A; Bernhammer, AK; Breitenlechner, M; Brilke, S; Buchholz, A; Mazon, SB; Chen, DX; Chen, XM; Dias, A; Dommen, J; Draper, DC; Duplissy, J; Ehn, M; Finkenzeller, H; Fischer, L; Frege, C; Fuchs, C; Garmash, O; Gordon, H; Hakala, J; He, XC; Heikkinen, L; Heinritzi, M; Helm, JC; Hofbauer, V; Hoyle, CR; Jokinen, T; Kangasluoma, J; Kerminen, VM; Kim, C; Kirkby, J; Kontkanen, J; Kurten, A; Lawler, MJ; Mai, HJ; Mathot, S; Mauldin, RL; Molteni, U; Nichman, L; Nie, W; Nieminen, T; Ojdanic, A; Onnela, A; Passananti, M; Petaja, T; Piel, F; Pospisilova, V; Quelever, LLJ; Rissanen, MP; Rose, C; Sarnela, N; Schallhart, S; Schuchmann, S; Sengupta, K; Simon, M; Sipila, M; Tauber, C; Tome, A; Trostl, J; Vaisanen, O; Vogel, AL; Volkamer, R; Wagner, AC; Wang, MY; Weitz, L; Wimmer, D; Ye, PL; Ylisirnio, A; Zha, QZ; Carslaw, KS; Curtius, J; Donahue, NM; Flagan, RC; Hansel, A; Riipinen, I; Virtanen, A; Winkler, PM; Baltensperger, U; Kulmala, M; Worsnop, DR. (DEC 2018). Multicomponent new particle formation from sulfuric acid, ammonia, and biogenic vapors. SCIENCE ADVANCES, 4(12). 10.1126/sciadv.aau5363
  • Wales, PA, RJ Salawitch, JM Nicely, DC Anderson, TP Canty, S Baidar, B Dix, TK Koenig, R Volkamer, DX Chen, LG Huey, DJ Tanner, CA Cuevas, RP Fernandez, DE Kinnison, JF Lamarque, A Saiz-Lopez, EL Atlas, SR Hall, MA Navarro, LL Pan, SM Schauffler, M Stell, S Tilmes, K Ullmann, AJ Weinheimer, H Akiyoshi, MP Chipperfield, M Deushi, SS Dhomse, WH Feng, P Graf, R Hossaini, P Jockel, E Mancini, M Michou, O Morgenstern, LD Oman, G Pitari, DA Plummer, LE Revell, E Rozanov, D Saint-Martin, R Schofield, A Stenke, KA Stone, D Visioni, Y Yamashita and G Zeng. (27-May 2018). Stratospheric Injection of Brominated Very Short-Lived Substances: Aircraft Observations in the Western Pacific and Representation in Global Models. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 123(10), 5690-5719. 10.1029/2017JD027978
  • de Gouw, JA, JB Gilman, SW Kim, SL Alvarez, S Dusanter, M Graus, SM Griffith, G Isaacman-VanWertz, WC Kuster, BL Lefer, BM Lerner, BC McDonald, B Rappengluck, JM Roberts, PS Stevens, J Stutz, R Thalman, PR Veres, R Volkamer, C Warneke, RA Washenfelder and CJ Young. (27-Feb 2018). Chemistry of Volatile Organic Compounds in the Los Angeles Basin: Formation of Oxygenated Compounds and Determination of Emission Ratios. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 123(4), 2298-2319. 10.1002/2017JD027976
  • Koenig, TK, R Volkamer, S Baidar, B Dix, SY Wang, DC Anderson, RJ Salawitch, PA Wales, CA Cuevas, RP Fernandez, A Saiz-Lopez, MJ Evans, T Sherwen, DJ Jacob, J Schmidt, D Kinnison, JF Lamarque, EC Apel, JC Bresch, T Campos, FM Flocke, SR Hall, SB Honomichl, R Hornbrook, JB Jensen, R Lueb, DD Montzka, LL Pan, JM Reeves, SM Schauffler, K Ullmann, AJ Weinheimer, EL Atlas, V Donets, MA Navarro, D Riemer, NJ Blake, DX Chen, LG Huey, DJ Tanner, TF Hanisco and GM Wolfe. (22-Dec 2017). BrO and inferred Br-y profiles over the western Pacific: relevance of inorganic bromine sources and a Br-y minimum in the aged tropical tropopause layer. ATMOSPHERIC CHEMISTRY AND PHYSICS, 17(24), 15245-15270. 10.5194/acp-17-15245-2017
  • Wang, Y, S Beirle, F Hendrick, A Hilboll, JL Jin, AA Kyuberis, J Lampel, A Li, YH Luo, L Lodi, JZ Ma, M Navarro, I Ortega, E Peters, OL Polyansky, J Remmers, A Richter, O Puentedura, M Van Roozendael, A Seyler, J Tennyson, R Volkamer, PH Xie, NF Zobov and T Wagner. (12-Oct 2017). MAX-DOAS measurements of HONO slant column densities during the MAD-CAT campaign: inter-comparison, sensitivity studies on spectral analysis settings, and error budget. ATMOSPHERIC MEASUREMENT TECHNIQUES, 10(10), 3719-3742. 10.5194/amt-10-3719-2017
  • Toivola, M, NL Prisle, J Elm, EM Waxman, R Volkamer and T Kurten. (24-Aug 2017). Can COSMOTherm Predict a Salting in Effect?. JOURNAL OF PHYSICAL CHEMISTRY A, 121(33), 6288-6295. 10.1021/acs.jpca.7b04847
  • Peters, E, G Pinardi, A Seyler, A Richter, F Wittrock, T Bosch, M Van Roozendael, F Hendrick, T Drosoglou, AF Bais, Y Kanaya, XY Zhao, K Strong, J Lampel, R Volkamer, T Koenig, I Ortega, O Puentedura, M Navarro-Comas, L Gomez, MY Gonzalez, A Piters, J Remmers, Y Wang, T Wagner, SS Wang, A Saiz-Lopez, D Garcia-Nieto, CA Cuevas, N Benavent, R Querel, P Johnston, O Postylyakov, A Borovski, A Elokhov, I Bruchkouski, HR Liu, C Liu, QQ Hong, C Rivera, M Grutter, W Stremme, MF Khokhar, J Khayyam and JP Burrows. (10-Mar 2017). Investigating differences in DOAS retrieval codes using MAD-CAT campaign data. ATMOSPHERIC MEASUREMENT TECHNIQUES, 10(3), 955-978. 10.5194/amt-10-955-2017
  • Sareen, N, EM Waxman, BJ Turpin, R Volkamer and AG Carlton. (21-Mar 2017). Potential of Aerosol Liquid Water to Facilitate Organic Aerosol Formation: Assessing Knowledge Gaps about Precursors and Partitioning. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 51(6), 3327-3335. 10.1021/acs.est.6b04540
  • Chiu, R, L Tinel, L Gonzalez, R Ciuraru, F Bernard, C George and R Volkamer. (28-Jan 2017). UV photochemistry of carboxylic acids at the air-sea boundary: A relevant source of glyoxal and other oxygenated VOC in the marine atmosphere. GEOPHYSICAL RESEARCH LETTERS, 44(2), 1079-1087. 10.1002/2016GL071240
  • Anderson, DC, JM Nicely, GM Wolfe, TF Hanisco, RJ Salawitch, TP Canty, RR Dickerson, EC Apel, S Baidar, TJ Bannan, NJ Blake, DX Chen, B Dix, RP Fernandez, SR Hall, RS Hornbrook, LG Huey, B Josse, P Jockel, DE Kinnison, TK Koenig, M Le Breton, V Marecal, O Morgenstern, LD Oman, LL Pan, C Percival, D Plummer, LE Revell, E Rozanov, A Saiz-Lopez, A Stenke, K Sudo, S Tilmes, K Ullmann, R Volkamer, AJ Weinheimer and G Zeng. (27-Oct 2017). Formaldehyde in the Tropical Western Pacific: Chemical Sources and Sinks, Convective Transport, and Representation in CAM-Chem and the CCMI Models. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 122(20), 11201-11226. 10.1002/2016JD026121
  • Kille, N, S Baidar, P Handley, I Ortega, R Sinreich, OR Cooper, F Hase, JW Hannigan, G Pfister and R Volkamer. (1-Feb 2017). The CU mobile Solar Occultation Flux instrument: structure functions and emission rates of NH3, NO2 and C2H6. ATMOSPHERIC MEASUREMENT TECHNIQUES, 10(1), 373-392. 10.5194/amt-10-373-2017
  • Pan, LL, EL Atlas, RJ Salawitch, SB Honomichl, JF Bresch, WJ Randel, EC Apel, RS Hornbrook, AJ Weinheimer, DC Anderson, SJ Andrews, S Baidar, SP Beaton, TL Campos, LJ Carpenter, D Chen, B Dix, V Donets, SR Hall, TF Hanisco, CR Homeyer, LG Huey, JB Jensen, L Kaser, DE Kinnison, TK Koenig, JF Lamarque, C Liu, J Luo, ZJ Luo, DD Montzka, JM Nicely, RB Pierce, DD Riemer, T Robinson, P Romashkin, A Saiz-Lopez, S Schauffler, O Shieh, MH Stell, K Ullmann, G Vaughan, R Volkamer and G Wolfe. (JAN 2017). THE CONVECTIVE TRANSPORT OF ACTIVE SPECIES IN THE TROPICS (CONTRAST) EXPERIMENT. BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY, 98(1), 106-+. 10.1175/BAMS-D-14-00272.1
  • Tan, XX, Y Huang, MH Diao, A Bansemer, MA Zondlo, JP DiGangi, R Volkamer and YY Hu. (28-Oct 2016). An assessment of the radiative effects of ice supersaturation based on in situ observations. GEOPHYSICAL RESEARCH LETTERS, 43(20), 11039-11047. 10.1002/2016GL071144
  • Hopfner, M, R Volkamer, U Grabowski, M Grutter, J Orphal, G Stiller, T von Clarmann and G Wetzel. (18-Nov 2016). First detection of ammonia (NH3) in the Asian summer monsoon upper troposphere. ATMOSPHERIC CHEMISTRY AND PHYSICS, 16(22), 14357-14369. 10.5194/acp-16-14357-2016
  • Dix, B, TK Koenig and R Volkamer. (28-Nov 2016). Parameterization retrieval of trace gas volume mixing ratios from Airborne MAX-DOAS. ATMOSPHERIC MEASUREMENT TECHNIQUES, 9(11), 5655-5675. 10.5194/amt-9-5655-2016
  • Fast, JD, LK Berg, K Zhang, RC Easter, RA Ferrare, JW Hair, CA Hostetler, Y Liu, I Ortega, A Sedlacek, JE Shilling, M Shrivastava, SR Springston, JM Tomlinson, R Volkamer, J Wilson, RA Zaveri and A Zelenyuk. (27-Aug 2016). Model representations of aerosol layers transported from North America over the Atlantic Ocean during the Two-Column Aerosol Project. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 121(16), 9814-9848. 10.1002/2016JD025248
  • Li, JY, JQ Mao, KE Min, RA Washenfelder, SS Brown, J Kaiser, FN Keutsch, R Volkamer, GM Wolfe, TF Hanisco, IB Pollack, TB Ryerson, M Graus, JB Gilman, BM Lerner, C Warneke, JA de Gouw, AM Middlebrook, J Liao, A Welti, BH Henderson, VF McNeill, SR Hall, K Ullmann, LJ Donner, F Paulot and LW Horowitz. (27-Aug 2016). Observational constraints on glyoxal production from isoprene oxidation and its contribution to organic aerosol over the Southeast United States. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 121(16), 9849-9861. 10.1002/2016JD025331
  • Schmidt, JA, DJ Jacob, HM Horowitz, L Hu, T Sherwen, MJ Evans, Q Liang, RM Suleiman, DE Oram, M Le Breton, CJ Percival, S Wang, B Dix and R Volkamer. (OCT 2016). Modeling the observed tropospheric BrO background: Importance of multiphase chemistry and implications for ozone, OH, and mercury. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 121(19), 11819-11835. 10.1002/2015JD024229
  • Sherwen, T, JA Schmidt, MJ Evans, LJ Carpenter, K Grossmann, SD Eastham, DJ Jacob, B Dix, TK Koenig, R Sinreich, I Ortega, R Volkamer, A Saiz-Lopez, C Prados-Roman, AS Mahajan and C Ordonez. (29-Sep 2016). Global impacts of tropospheric halogens (Cl, Br, I) on oxidants and composition in GEOS-Chem. ATMOSPHERIC CHEMISTRY AND PHYSICS, 16(18), 12239-12271. 10.5194/acp-16-12239-2016
  • Palacios, LG, PC Arroyo, KZ Aregahegn, SS Steimer, T Bartels-Rausch, B Noziere, C George, M Ammann and R Volkamer. (23-Sep 2016). Heterogeneous photochemistry of imidazole-2-carboxaldehyde: HO2 radical formation and aerosol growth. ATMOSPHERIC CHEMISTRY AND PHYSICS, 16(18), 11823-11836. 10.5194/acp-16-11823-2016
  • Chen, QC, Y Miyazaki, K Kawamura, K Matsumoto, S Coburn, R Volkamer, Y Iwamoto, S Kagami, YG Deng, S Ogawa, S Ramasamy, S Kato, A Ida, Y Kajii and M Mochida. (4-Oct 2016). Characterization of Chromophoric Water-Soluble Organic Matter in Urban, Forest, and Marine Aerosols by HR-ToF-AMS Analysis and Excitation Emission Matrix Spectroscopy. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 50(19), 10351-10360. 10.1021/acs.est.6b01643
  • Ortega, I, S Coburn, LK Berg, K Lantz, J Michalsky, RA Ferrare, J Hair, CA Hostetler and R Volkamer. (23-Aug 2016). The CU 2-D-MAX-DOAS instrument - Part 2: Raman scattering probability measurements and retrieval of aerosol optical properties. ATMOSPHERIC MEASUREMENT TECHNIQUES, 9(8), 3893-3910. 10.5194/amt-9-3893-2016
  • Coburn, S, B Dix, E Edgerton, CD Holmes, D Kinnison, Q Liang, A ter Schure, SY Wang and R Volkamer. (2016). Mercury oxidation from bromine chemistry in the free troposphere over the southeastern US. ATMOSPHERIC CHEMISTRY AND PHYSICS, 16(6), 3743-3760. 10.5194/acp-16-3743-2016
  • Miyazaki, Y, S Coburn, K Ono, DT Ho, RB Pierce, K Kawamura and R Volkamer. (2016). Contribution of dissolved organic matter to submicron water-soluble organic aerosols in the marine boundary layer over the eastern equatorial Pacific. ATMOSPHERIC CHEMISTRY AND PHYSICS, 16(12), 7695-7707. 10.5194/acp-16-7695-2016
  • Ortega, I, LK Berg, RA Ferrare, JW Hair, CA Hostetler and R Volkamer. (JUN 2016). Elevated aerosol layers modify the O-2-O-2 absorption measured by ground-based MAX-DOAS. JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, 176, 34-49. 10.1016/j.jqsrt.2016.02.021
  • Baidar, S, N Kille, I Ortega, R Sinreich, D Thomson, J Hannigan and R Volkamer. (2016). Development of a digital mobile solar tracker. ATMOSPHERIC MEASUREMENT TECHNIQUES, 9(3), 963-972. 10.5194/amt-9-963-2016
  • Hoyle, CR, C Fuchs, E Jarvinen, H Saathoff, A Dias, I El Haddad, M Gysel, SC Coburn, J Trostl, AK Bernhammer, F Bianchi, M Breitenlechner, JC Corbin, J Craven, NM Donahue, J Duplissy, S Ehrhart, C Frege, H Gordon, N Hoppel, M Heinritzi, TB Kristensen, U Molteni, L Nichman, T Pinterich, ASH Prevot, M Simon, JG Slowik, G Steiner, A Tome, AL Vogel, R Volkamer, AC Wagner, R Wagner, AS Wexler, C Williamson, PM Winkler, C Yan, A Amorim, J Dommen, J Curtius, MW Gallagher, RC Flagan, A Hansel, J Kirkby, M Kulmala, O Mohler, F Stratmann, DR Worsnop and U Baltensperger. (2016). Aqueous phase oxidation of sulphur dioxide by ozone in cloud droplets. ATMOSPHERIC CHEMISTRY AND PHYSICS, 16(3), 1693-1712. 10.5194/acp-16-1693-2016
  • Sherwen, T, MJ Evans, LJ Carpenter, SJ Andrews, RT Lidster, B Dix, TK Koenig, R Sinreich, I Ortega, R Volkamer, A Saiz-Lopez, C Prados-Roman, AS Mahajan and C Ordonez. (2016). Iodines impact on tropospheric oxidants: a global model study in GEOS-Chem. ATMOSPHERIC CHEMISTRY AND PHYSICS, 16(2), 1161-1186. 10.5194/acp-16-1161-2016
  • Griffith, SM, RF Hansen, S Dusanter, V Michoud, JB Gilman, WC Kuster, PR Veres, M Graus, JA de Gouw, J Roberts, C Young, R Washenfelder, SS Brown, R Thalman, E Waxman, R Volkamer, C Tsai, J Stutz, JH Flynn, N Grossberg, B Lefer, SL Alvarez, B Rappenglueck, LH Mielke, HD Osthoff and PS Stevens. (27-Apr 2016). Measurements of hydroxyl and hydroperoxy radicals during CalNex-LA: Model comparisons and radical budgets. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 121(8), 4211-4232. 10.1002/2015JD024358
  • Berg, LK, JD Fast, JC Barnard, SP Burton, B Cairns, D Chand, JM Comstock, S Dunagan, RA Ferrare, CJ Flynn, JW Hair, CA Hostetler, J Hubbe, A Jefferson, R Johnson, EI Kassianov, CD Kluzek, P Kollias, K Lamer, K Lantz, F Mei, MA Miller, J Michalsky, I Ortega, M Pekour, RR Rogers, PB Russell, J Redemann, AJ Sedlacek, M Segal-Rosenheimer, B Schmid, JE Shilling, Y Shinozuka, SR Springston, JM Tomlinson, M Tyrrell, JM Wilson, R Volkamer, A Zelenyuk and CM Berkowitz. (16-Jan 2016). The Two-Column Aerosol Project: Phase IOverview and impact of elevated aerosol layers on aerosol optical depth. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 121(1), 336-361. 10.1002/2015JD023848
  • Kim, SW, BC McDonald, S Baidar, SS Brown, B Dube, RA Ferrare, GJ Frost, RA Harley, JS Holloway, HJ Lee, SA McKeen, JA Neuman, JB Nowak, H Oetjen, I Ortega, IB Pollack, JM Roberts, TB Ryerson, AJ Scarino, CJ Senff, R Thalman, M Trainer, R Volkamer, N Wagner, RA Washenfelder, E Waxman and CJ Young. (16-Feb 2016). Modeling the weekly cycle of NOx and CO emissions and their impacts on O-3 in the Los Angeles-South Coast Air Basin during the CalNex 2010 field campaign. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 121(3), 1340-1360. 10.1002/2015JD024292
  • Baidar, S, RM Hardesty, SW Kim, AO Langford, H Oetjen, CJ Senff, M Trainer and R Volkamer. (16-Nov 2015). Weakening of the weekend ozone effect over Californias South Coast Air Basin. GEOPHYSICAL RESEARCH LETTERS, 42(21), 9457-9464. 10.1002/2015GL066419
  • Saiz-Lopez, A, S Baidar, CA Cuevas, TK Koenig, RP Fernandez, B Dix, DE Kinnison, JF Lamarque, X Rodriguez-Lloveras, TL Campos and R Volkamer. (28-Aug 2015). Injection of iodine to the stratosphere. GEOPHYSICAL RESEARCH LETTERS, 42(16), 6852-6859. 10.1002/2015GL064796
  • Wang, SY, JA Schmidt, S Baidar, S Coburn, B Dix, TK Koenig, E Apel, D Bowdalo, TL Campos, E Eloranta, MJ Evans, JP DiGangi, MA Zondlo, RS Gao, JA Haggerty, SR Hall, RS Hornbrook, D Jacob, B Morley, B Pierce, M Reeves, P Romashkin, A ter Schure and R Volkamer. (28-Jul 2015). Active and widespread halogen chemistry in the tropical and subtropical free troposphere. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 112(30), 9281-9286. 10.1073/pnas.1505142112
  • Ortega, I, T Koenig, R Sinreich, D Thomson and R Volkamer. (2015). The CU 2-D-MAX-DOAS instrument - Part 1: Retrieval of 3-D distributions of NO2 and azimuth-dependent OVOC ratios. ATMOSPHERIC MEASUREMENT TECHNIQUES, 8(6), 2371-2395. 10.5194/amt-8-2371-2015
  • Volkamer, R, S Baidar, TL Campos, S Coburn, JP DiGangi, B Dix, EW Eloranta, TK Koenig, B Morley, I Ortega, BR Pierce, M Reeves, R Sinreich, S Wang, MA Zondlo and PA Romashkin. (2015). Aircraft measurements of BrO, IO, glyoxal, NO2, H2O, O-2-O-2 and aerosol extinction profiles in the tropics: comparison with aircraft-/ship-based in situ and lidar measurements. ATMOSPHERIC MEASUREMENT TECHNIQUES, 8(5), 2121-2148. 10.5194/amt-8-2121-2015
  • Goss, NR, EM Waxman, SC Coburn, TK Koenig, R Thalman, J Dommen, JW Hannigan, GS Tyndall and R Volkamer. (14-May 2015). Measurements of the Absorption Cross Section of (CHOCHO)-C-13-C-13 at Visible Wavelengths and Application to DOAS Retrievals. JOURNAL OF PHYSICAL CHEMISTRY A, 119(19), 4651-4657. 10.1021/jp511357s
  • Thalman, R, MT Baeza-Romero, SM Ball, E Borras, MJS Daniels, ICA Goodall, SB Henry, T Karl, FN Keutsch, S Kim, J Mak, PS Monks, A Munoz, J Orlando, S Peppe, AR Rickard, M Rodenas, P Sanchez, R Seco, L Su, G Tyndall, M Vazquez, T Vera, E Waxman and R Volkamer. (2015). Instrument intercomparison of glyoxal, methyl glyoxal and NO2 under simulated atmospheric conditions. ATMOSPHERIC MEASUREMENT TECHNIQUES, 8(4), 1835-1862. 10.5194/amt-8-1835-2015
  • Spinei, E, A Cede, J Herman, GH Mount, E Eloranta, B Morley, S Baidar, B Dix, I Ortega, T Koenig and R Volkamer. (2015). Ground-based direct-sun DOAS and airborne MAX-DOAS measurements of the collision-induced oxygen complex, O2O2, absorption with significant pressure and temperature differences. ATMOSPHERIC MEASUREMENT TECHNIQUES, 8(2), 793-809. 10.5194/amt-8-793-2015
  • Kurten, T, J Elm, NL Prisle, KV Mikkelsen, CJ Kampf, EM Waxman and R Volkamer. (14-May 2015). Computational Study of the Effect of Glyoxal-Sulfate Clustering on the Henrys Law Coefficient of Glyoxal. JOURNAL OF PHYSICAL CHEMISTRY A, 119(19), 4509-4514. 10.1021/jp510304c
  • Waxman, EM, J Elm, T Kurten, KV Mikkelsen, PJ Ziemann and R Vokamer. (6-Oct 2015). Glyoxal and Methylglyoxal Setschenow Salting Constants in Sulfate, Nitrate, and Chloride Solutions: Measurements and Gibbs Energies. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 49(19), 11500-11508. 10.1021/acs.est.5b02782
  • Coburn, S, I Ortega, R Thalman, B Blomquist, CW Fairall and R Volkamer. (2014). Measurements of diurnal variations and eddy covariance (EC) fluxes of glyoxal in the tropical marine boundary layer: description of the Fast LED-CE-DOAS instrument. ATMOSPHERIC MEASUREMENT TECHNIQUES, 7(10), 3579-3595. 10.5194/amt-7-3579-2014
  • Thalman, R, KJ Zarzana, MA Tolbert and R Volkamer. (NOV 2014). Rayleigh scattering cross-section measurements of nitrogen, argon, oxygen and air. JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER, 147, 171-177. 10.1016/j.jqsrt.2014.05.030
  • Knote, C, A Hodzic, JL Jimenez, R Volkamer, JJ Orlando, S Baidar, J Brioude, J Fast, DR Gentner, AH Goldstein, PL Hayes, WB Knighton, H Oetjen, A Setyan, H Stark, R Thalman, G Tyndall, R Washenfelder, E Waxman and Q Zhang. (2014). Simulation of semi-explicit mechanisms of SOA formation from glyoxal in aerosol in a 3-D model. ATMOSPHERIC CHEMISTRY AND PHYSICS, 14(12), 6213-6239. 10.5194/acp-14-6213-2014
  • Zhou, S, L Gonzalez, A Leithead, Z Finewax, R Thalman, A Vlasenko, S Vagle, LA Miller, SM Li, S Bureekul, H Furutani, M Uematsu, R Volkamer and J Abbatt. (2014). Formation of gas-phase carbonyls from heterogeneous oxidation of polyunsaturated fatty acids at the air-water interface and of the sea surface microlayer. ATMOSPHERIC CHEMISTRY AND PHYSICS, 14(3), 1371-1384. 10.5194/acp-14-1371-2014
  • Oetjen, H, S Baidar, NA Krotkov, LN Lamsal, M Lechner and R Volkamer. (16-Jul 2013). Airborne MAX-DOAS measurements over California: Testing the NASA OMI tropospheric NO2 product. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 118(13), 7400-7413. 10.1002/jgrd.50550
  • Ryerson, TB, AE Andrews, WM Angevine, TS Bates, CA Brock, B Cairns, RC Cohen, OR Cooper, JA de Gouw, FC Fehsenfeld, RA Ferrare, ML Fischer, RC Flagan, AH Goldstein, JW Hair, RM Hardesty, CA Hostetler, JL Jimenez, AO Langford, E McCauley, SA McKeen, LT Molina, A Nenes, SJ Oltmans, DD Parrish, JR Pederson, RB Pierce, K Prather, PK Quinn, JH Seinfeld, CJ Senff, A Sorooshian, J Stutz, JD Surratt, M Trainer, R Volkamer, EJ Williams and SC Wofsy. (16-Jun 2013). The 2010 California Research at the Nexus of Air Quality and Climate Change (CalNex) field study. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 118(11), 5830-5866. 10.1002/jgrd.50331
  • Hayes, PL, AM Ortega, MJ Cubison, KD Froyd, Y Zhao, SS Cliff, WW Hu, DW Toohey, JH Flynn, BL Lefer, N Grossberg, S Alvarez, B Rappenglueck, JW Taylor, JD Allan, JS Holloway, JB Gilman, WC Kuster, JA De Gouw, P Massoli, X Zhang, J Liu, RJ Weber, AL Corrigan, LM Russell, G Isaacman, DR Worton, NM Kreisberg, AH Goldstein, R Thalman, EM Waxman, R Volkamer, YH Lin, JD Surratt, TE Kleindienst, JH Offenberg, S Dusanter, S Griffith, PS Stevens, J Brioude, WM Angevine and JL Jimenez. (27-Aug 2013). Organic aerosol composition and sources in Pasadena, California, during the 2010 CalNex campaign. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 118(16), 9233-9257. 10.1002/jgrd.50530
  • Thalman, R and R Volkamer. (2013). Temperature dependent absorption cross-sections of O-2-O-2 collision pairs between 340 and 630 nm and at atmospherically relevant pressure. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 15(37), 15371-15381. 10.1039/c3cp50968k
  • Sinreich, R, A Merten, L Molina and R Volkamer. (2013). Parameterizing radiative transfer to convert MAX-DOAS dSCDs into near-surface box-averaged mixing ratios. ATMOSPHERIC MEASUREMENT TECHNIQUES, 6(6), 1521-1532. 10.5194/amt-6-1521-2013
  • Kampf, CJ, EM Waxman, JG Slowik, J Dommen, L Pfaffenberger, AP Praplan, ASH Prevot, U Baltensperger, T Hoffmann and R Volkamer. (7-May 2013). Effective Henrys Law Partitioning and the Salting Constant of Glyoxal in Aerosols Containing Sulfate. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 47(9), 4236-4244. 10.1021/es400083d
  • Waxman, EM, K Dzepina, B Ervens, J Lee-Taylor, B Aumont, JL Jimenez, S Madronich and R Volkamer. (16-Mar 2013). Secondary organic aerosol formation from semi- and intermediate-volatility organic compounds and glyoxal: Relevance of O/C as a tracer for aqueous multiphase chemistry. GEOPHYSICAL RESEARCH LETTERS, 40(5), 978-982. 10.1002/grl.50203
  • Baidar, S, H Oetjen, S Coburn, B Dix, I Ortega, R Sinreich and R Volkamer. (2013). The CU Airborne MAX-DOAS instrument: vertical profiling of aerosol extinction and trace gases. ATMOSPHERIC MEASUREMENT TECHNIQUES, 6(3), 719-739. 10.5194/amt-6-719-2013
  • Dix, B, S Baidara, JF Bresch, SR Hall, KS Schmidt, SY Wang and R Volkamer. (5-Feb 2013). Detection of iodine monoxide in the tropical free troposphere. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 110(6), 2035-2040. 10.1073/pnas.1212386110
  • Fried, A, C Cantrell, J Olson, JH Crawford, P Weibring, J Walega, D Richter, W Junkermann, R Volkamer, R Sinreich, BG Heikes, D OSullivan, DR Blake, N Blake, S Meinardi, E Apel, A Weinheimer, D Knapp, A Perring, RC Cohen, H Fuelberg, RE Shetter, SR Hall, K Ullmann, WH Brune, J Mao, X Ren, LG Huey, HB Singh, JW Hair, D Riemer, G Diskin and G Sachse. (2011). Detailed comparisons of airborne formaldehyde measurements with box models during the 2006 INTEX-B and MILAGRO campaigns: potential evidence for significant impacts of unmeasured and multi-generation volatile organic carbon compounds. ATMOSPHERIC CHEMISTRY AND PHYSICS, 11(22), 11867-11894. 10.5194/acp-11-11867-2011
  • Coburn, S, B Dix, R Sinreich and R Volkamer. (2011). The CU ground MAX-DOAS instrument: characterization of RMS noise limitations and first measurements near Pensacola, FL of BrO, IO, and CHOCHO. ATMOSPHERIC MEASUREMENT TECHNIQUES, 4(11), 2421-2439. 10.5194/amt-4-2421-2011
  • Dzepina, K, CD Cappa, RM Volkamer, S Madronich, PF DeCarlo, RA Zaveri and JL Jimenez. (15-Apr 2011). Modeling the Multiday Evolution and Aging of Secondary Organic Aerosol During MILAGRO 2006. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 45(8), 3496-3503. 10.1021/es103186f
  • Thalman, R and R Volkamer. (2010). Inherent calibration of a blue LED-CE-DOAS instrument to measure iodine oxide, glyoxal, methyl glyoxal, nitrogen dioxide, water vapour and aerosol extinction in open cavity mode. ATMOSPHERIC MEASUREMENT TECHNIQUES, 3(6), 1797-1814. 10.5194/amt-3-1797-2010
  • Sinreich, R, S Coburn, B Dix and R Volkamer. (2010). Ship-based detection of glyoxal over the remote tropical Pacific Ocean. ATMOSPHERIC CHEMISTRY AND PHYSICS, 10(23), 11359-11371. 10.5194/acp-10-11359-2010
  • Molina, LT, S Madronich, JS Gaffney, E Apel, B de Foy, J Fast, R Ferrare, S Herndon, JL Jimenez, B Lamb, AR Osornio-Vargas, P Russell, JJ Schauer, PS Stevens, R Volkamer and M Zavala. (2010). An overview of the MILAGRO 2006 Campaign: Mexico City emissions and their transport and transformation. ATMOSPHERIC CHEMISTRY AND PHYSICS, 10(18), 8697-8760. 10.5194/acp-10-8697-2010
  • Ervens, B and R Volkamer. (2010). Glyoxal processing by aerosol multiphase chemistry: towards a kinetic modeling framework of secondary organic aerosol formation in aqueous particles. ATMOSPHERIC CHEMISTRY AND PHYSICS, 10(17), 8219-8244. 10.5194/acp-10-8219-2010
  • Sheehy, PM, R Volkamer, LT Molina and MJ Molina. (2010). Oxidative capacity of the Mexico City atmosphere - Part 2: A ROx radical cycling perspective. ATMOSPHERIC CHEMISTRY AND PHYSICS, 10(14), 6993-7008. 10.5194/acp-10-6993-2010
  • Volkamer, R, P Sheehy, LT Molina and MJ Molina. (2010). Oxidative capacity of the Mexico City atmosphere - Part 1: A radical source perspective. ATMOSPHERIC CHEMISTRY AND PHYSICS, 10(14), 6969-6991. 10.5194/acp-10-6969-2010
  • Li, G, W Lei, M Zavala, R Volkamer, S Dusanter, P Stevens and LT Molina. (2010). Impacts of HONO sources on the photochemistry in Mexico City during the MCMA-2006/MILAGO Campaign. ATMOSPHERIC CHEMISTRY AND PHYSICS, 10(14), 6551-6567. 10.5194/acp-10-6551-2010
  • Aiken, AC, B de Foy, C Wiedinmyer, PF DeCarlo, IM Ulbrich, MN Wehrli, S Szidat, ASH Prevot, J Noda, L Wacker, R Volkamer, E Fortner, J Wang, A Laskin, V Shutthanandan, J Zheng, R Zhang, G Paredes-Miranda, WP Arnott, LT Molina, G Sosa, X Querol and JL Jimenez. (2010). Mexico city aerosol analysis during MILAGRO using high resolution aerosol mass spectrometry at the urban supersite (T0) - Part 2: Analysis of the biomass burning contribution and the non-fossil carbon fraction. ATMOSPHERIC CHEMISTRY AND PHYSICS, 10(12), 5315-5341. 10.5194/acp-10-5315-2010
  • Song, J, W Lei, N Bei, M Zavala, B de Foy, R Volkamer, B Cardenas, J Zheng, R Zhang and LT Molina. (2010). Ozone response to emission changes: a modeling study during the MCMA-2006/MILAGRO Campaign. ATMOSPHERIC CHEMISTRY AND PHYSICS, 10(8), 3827-3846. 10.5194/acp-10-3827-2010
  • Jobson, BT, RA Volkamer, E Velasco, G Allwine, H Westberg, BK Lamb, ML Alexander, CM Berkowitz and LT Molina. (2010). Comparison of aromatic hydrocarbon measurements made by PTR-MS, DOAS and GC-FID during the MCMA 2003 Field Experiment. ATMOSPHERIC CHEMISTRY AND PHYSICS, 10(4), 1989-2005. 10.5194/acp-10-1989-2010
  • Noda, J, R Volkamer and MJ Molina. (3-Sep 2009). Dealkylation of Alkylbenzenes: A Significant Pathway in the Toluene, o-, m-, p-Xylene plus OH Reaction. JOURNAL OF PHYSICAL CHEMISTRY A, 113(35), 9658-9666. 10.1021/jp901529k
  • Fortner, EC, J Zheng, R Zhang, WB Knighton, RM Volkamer, P Sheehy, L Molina and M Andre. (2009). Measurements of Volatile Organic Compounds Using Proton Transfer Reaction - Mass Spectrometry during the MILAGRO 2006 Campaign. ATMOSPHERIC CHEMISTRY AND PHYSICS, 9(2), 467-481. 10.5194/acp-9-467-2009
  • Lei, W, M Zavala, B de Foy, R Volkamer, MJ Molina and LT Molina. (2009). Impact of primary formaldehyde on air pollution in the Mexico City Metropolitan Area. ATMOSPHERIC CHEMISTRY AND PHYSICS, 9(7), 2607-2618. 10.5194/acp-9-2607-2009
  • Dusanter, S, D Vimal, PS Stevens, R Volkamer, LT Molina, A Baker, S Meinardi, D Blake, P Sheehy, A Merten, R Zhang, J Zheng, EC Fortner, W Junkermann, M Dubey, T Rahn, B Eichinger, P Lewandowski, J Prueger and H Holder. (2009). Measurements of OH and HO2 concentrations during the MCMA-2006 field campaign - Part 2: Model comparison and radical budget. ATMOSPHERIC CHEMISTRY AND PHYSICS, 9(18), 6655-6675. 10.5194/acp-9-6655-2009
  • Aiken, AC, D Salcedo, MJ Cubison, JA Huffman, PF DeCarlo, IM Ulbrich, KS Docherty, D Sueper, JR Kimmel, DR Worsnop, A Trimborn, M Northway, EA Stone, JJ Schauer, RM Volkamer, E Fortner, B de Foy, J Wang, A Laskin, V Shutthanandan, J Zheng, R Zhang, J Gaffney, NA Marley, G Paredes-Miranda, WP Arnott, LT Molina, G Sosa and JL Jimenez. (2009). Mexico City aerosol analysis during MILAGRO using high resolution aerosol mass spectrometry at the urban supersite (T0) - Part 1: Fine particle composition and organic source apportionment. ATMOSPHERIC CHEMISTRY AND PHYSICS, 9(17), 6633-6653. 10.5194/acp-9-6633-2009
  • Dusanter, S, D Vimal, PS Stevens, R Volkamer and LT Molina. (2009). Measurements of OH and HO2 concentrations during the MCMA-2006 field campaign - Part 1: Deployment of the Indiana University laser-induced fluorescence instrument. ATMOSPHERIC CHEMISTRY AND PHYSICS, 9(5), 1665-1685. 10.5194/acp-9-1665-2009
  • Dzepina, K, RM Volkamer, S Madronich, P Tulet, IM Ulbrich, Q Zhang, CD Cappa, PJ Ziemann and JL Jimenez. (2009). Evaluation of recently-proposed secondary organic aerosol models for a case study in Mexico City. ATMOSPHERIC CHEMISTRY AND PHYSICS, 9(15), 5681-5709. 10.5194/acp-9-5681-2009
  • Volkamer, R, PJ Ziemann and MJ Molina. (2009). Secondary Organic Aerosol Formation from Acetylene (C2H2): seed effect on SOA yields due to organic photochemistry in the aerosol aqueous phase. ATMOSPHERIC CHEMISTRY AND PHYSICS, 9(6), 1907-1928. 10.5194/acp-9-1907-2009
  • Myriokefalitakis, S, M Vrekoussis, K Tsigaridis, F Wittrock, A Richter, C Bruhl, R Volkamer, JP Burrows and M Kanakidou. (2008). The influence of natural and anthropogenic secondary sources on the glyoxal global distribution. ATMOSPHERIC CHEMISTRY AND PHYSICS, 8(16), 4965-4981. 10.5194/acp-8-4965-2008
  • Barnard, JC, R Volkamer and EI Kassianov. (2008). Estimation of the mass absorption cross section of the organic carbon component of aerosols in the Mexico City Metropolitan Area. ATMOSPHERIC CHEMISTRY AND PHYSICS, 8(22), 6665-6679. 10.5194/acp-8-6665-2008
  • Lei, W, M Zavala, B de Foy, R Volkamer and LT Molina. (2008). Characterizing ozone production and response under different meteorological conditions in Mexico City. ATMOSPHERIC CHEMISTRY AND PHYSICS, 8(24), 7571-7581. 10.5194/acp-8-7571-2008
  • Zheng, J, R Zhang, EC Fortner, RM Volkamer, L Molina, AC Aiken, JL Jimenez, K Gaeggeler, J Dommen, S Dusanter, PS Stevens and X Tie. (2008). Measurements of HNO3 and N2O5 using ion drift-chemical ionization mass spectrometry during the MILAGRO/MCMA-2006 campaign. ATMOSPHERIC CHEMISTRY AND PHYSICS, 8(22), 6823-6838. 10.5194/acp-8-6823-2008
  • Velasco, E, B Lamb, H Westberg, E Allwine, G Sosa, JL Arriaga-Colina, BT Jobson, ML Alexander, P Prazeller, WB Knighton, TM Rogers, M Grutter, SC Herndon, CE Kolb, M Zavala, B de Foy, R Volkamer, LT Molina and MJ Molina. (23-Jan 2007). Distribution, magnitudes, reactivities, ratios and diurnal patterns of volatile organic compounds in the Valley of Mexico during the MCMA 2002 & 2003 field campaigns. ATMOSPHERIC CHEMISTRY AND PHYSICS, 7, 329-353. 10.5194/acp-7-329-2007
  • Sinreich, R, F Filsinger, U Friess, U Platt, O Sebastian, T Wagner, R Volkamer and C Kern. (22-Feb 2007). MAX-DOAS detection of glyoxal during ICARTT 2004. ATMOSPHERIC CHEMISTRY AND PHYSICS, 7, 1293-1303. 10.5194/acp-7-1293-2007
  • de Foy, B, W Lei, M Zavala, R Volkamer, J Samuelsson, J Mellqvist, B Galle, AP Martinez, M Grutter, A Retama and LT Molina. (14-Feb 2007). Modelling constraints on the emission inventory and on vertical dispersion for CO and SO2 in the Mexico City Metropolitan Area using Solar FTIR and zenith sky UV spectroscopy. ATMOSPHERIC CHEMISTRY AND PHYSICS, 7, 781-801. 10.5194/acp-7-781-2007
  • Lei, W, B de Foy, M Zavala, R Volkamer and LT Molina. (27-Feb 2007). Characterizing ozone production in the Mexico City Metropolitan Area: a case study using a chemical transport model. ATMOSPHERIC CHEMISTRY AND PHYSICS, 7, 1347-1366. 10.5194/acp-7-1347-2007
  • Volkamer, R, FS Martini, LT Molina, D Salcedo, JL Jimenez and MJ Molina. (9-Oct 2007). A missing sink for gas-phase glyoxal in Mexico City: Formation of secondary organic aerosol. GEOPHYSICAL RESEARCH LETTERS, 34(19). 10.1029/2007GL030752
  • Dunlea, EJ, SC Herndon, DD Nelson, RM Volkamer, F San Martini, PM Sheehy, MS Zahniser, JH Shorter, JC Wormhoudt, BK Lamb, EJ Allwine, JS Gaffney, NA Marley, M Grutter, C Marquez, S Blanco, B Cardenas, A Retama, CRR Villegas, CE Kolb, LT Molina and MJ Molina. (2007). Evaluation of nitrogen dioxide chemiluminescence monitors in a polluted urban environment. ATMOSPHERIC CHEMISTRY AND PHYSICS, 7(10), 2691-2704. 10.5194/acp-7-2691-2007
  • Kleffmann, J, JC Lorzer, P Wiesen, C Kern, S Trick, R Volkamer, M Rodenas and K Wirtz. (JUN 2006). Intercomparison of the DOAS and LOPAP techniques for the detection of nitrous acid (HONO). ATMOSPHERIC ENVIRONMENT, 40(20), 3640-3652. 10.1016/j.atmosenv.2006.03.027
  • Shirley, TR, WH Brune, X Ren, J Mao, R Lesher, B Cardenas, R Volkamer, LT Molina, MJ Molina, B Lamb, E Velasco, T Jobson and M Alexander. (7-Jul 2006). Atmospheric oxidation in the Mexico City Metropolitan Area (MCMA) during April 2003. ATMOSPHERIC CHEMISTRY AND PHYSICS, 6, 2753-2765. 10.5194/acp-6-2753-2006
  • Wittrock, F, A Richter, H Oetjen, JP Burrows, M Kanakidou, S Myriokefalitakis, R Volkamer, S Beirle, U Platt and T Wagner. (22-Aug 2006). Simultaneous global observations of glyoxal and formaldehyde from space. GEOPHYSICAL RESEARCH LETTERS, 33(16). 10.1029/2006GL026310
  • Garcia, AR, R Volkamer, LT Molina, MJ Molina, J Samuelson, J Mellqvist, B Galle, SC Herndon and CE Kolb. (9-Oct 2006). Separation of emitted and photochemical formaldehyde in Mexico City using a statistical analysis and a new pair of gas-phase tracers. ATMOSPHERIC CHEMISTRY AND PHYSICS, 6, 4545-4557. 10.5194/acp-6-4545-2006
  • Salcedo, D, TB Onasch, K Dzepina, MR Canagaratna, Q Zhang, JA Huffman, PF DeCarlo, JT Jayne, P Mortimer, DR Worsnop, CE Kolb, KS Johnson, B Zuberi, LC Marr, R Volkamer, LT Molina, MJ Molina, B Cardenas, RM Bernabe, C Marquez, JS Gaffney, NA Marley, A Laskin, V Shutthanandan, Y Xie, W Brune, R Lesher, T Shirley and JL Jimenez. (24-Mar 2006). Characterization of ambient aerosols in Mexico City during the MCMA-2003 campaign with Aerosol Mass Spectrometry: results from the CENICA Supersite. ATMOSPHERIC CHEMISTRY AND PHYSICS, 6, 925-946. 10.5194/acp-6-925-2006
  • Volkamer, R, JL Jimenez, F San Martini, K Dzepina, Q Zhang, D Salcedo, LT Molina, DR Worsnop and MJ Molina. (12-Sep 2006). Secondary organic aerosol formation from anthropogenic air pollution: Rapid and higher than expected. GEOPHYSICAL RESEARCH LETTERS, 33(17). 10.1029/2006GL026899
  • San Martini, FM, EJ Dunlea, R Volkamer, TB Onasch, JT Jayne, MR Canagaratna, DR Worsnop, CE Kolb, JH Shorter, SC Herndon, MS Zahniser, D Salcedo, K Dzepina, JL Jimenez, JM Ortega, KS Johnson, GJ McRae, LT Molina and MJ Molina. (30-Oct 2006). Implementation of a Markov Chain Monte Carlo method to inorganic aerosol modeling of observations from the MCMA-2003 campaign - Part II: Model application to the CENICA, Pedregal and Santa Ana sites. ATMOSPHERIC CHEMISTRY AND PHYSICS, 6, 4889-4904. 10.5194/acp-6-4889-2006
  • Dunlea, EJ, SC Herndon, DD Nelson, RM Volkamer, BK Lamb, EJ Allwine, M Grutter, CRR Villegas, C Marquez, S Blanco, B Cardenas, CE Kolb, LT Molina and MJ Molina. (1-Aug 2006). Technical note: Evaluation of standard ultraviolet absorption ozone monitors in a polluted urban environment. ATMOSPHERIC CHEMISTRY AND PHYSICS, 6, 3163-3180. 10.5194/acp-6-3163-2006
  • Bloss, C, V Wagner, ME Jenkin, R Volkamer, WJ Bloss, JD Lee, DE Heard, K Wirtz, M Martin-Reviejo, G Rea, JC Wenger and MJ Pilling. (1-Mar 2005). Development of a detailed chemical mechanism (MCMv3.1) for the atmospheric oxidation of aromatic hydrocarbons. ATMOSPHERIC CHEMISTRY AND PHYSICS, 5, 641-664. 10.5194/acp-5-641-2005
  • Volkamer, R, LT Molina, MJ Molina, T Shirley and WH Brune. (21-Apr 2005). DOAS measurement of glyoxal as an indicator for fast VOC chemistry in urban air. GEOPHYSICAL RESEARCH LETTERS, 32(8). 10.1029/2005GL022616
  • Volkamer, R, P Spietz, J Burrows and U Platt. (15-May 2005). High-resolution absorption cross-section of glyoxal in the UV-vis and IR spectral ranges. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 172(1), 35-46. 10.1016/j.jphotochem.2004.11.011
  • Hak, C, I Pundt, S Trick, C Kern, U Platt, J Dommen, C Ordonez, ASH Prevot, W Junkermann, C Astorga-Llorens, BR Larsen, J Mellqvist, A Strandberg, Y Yu, B Galle, J Kleffmann, JC Lorzer, GO Braathen and R Volkamer. (2-Nov 2005). Intercomparison of four different in-situ techniques for ambient formaldehyde measurements in urban air. ATMOSPHERIC CHEMISTRY AND PHYSICS, 5, 2881-2900. 10.5194/acp-5-2881-2005
  • Marley, NA, JS Gaffney, RV White, L Rodriguez-Cuadra, SE Herndon, E Dunlea, RM Volkamer, LT Molina and MJ Molina. (NOV 2004). Fast gas chromatography with luminol chemiluminescence detection for the simultaneous determination of nitrogen dioxide and peroxyacetyl nitrate in the atmosphere. REVIEW OF SCIENTIFIC INSTRUMENTS, 75(11), 4595-4605. 10.1063/1.1805271
  • Volkamer, R, B Klotz, I Barnes, T Imamura, K Wirtz, N Washida, KH Becker and U Platt. (2002). OH-initiated oxidation of benzene - Part I. Phenol formation under atmospheric conditions. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 4(9), 1598-1610. 10.1039/b108747a
  • Klotz, B, R Volkamer, MD Hurley, MPS Andersen, OJ Nielsen, I Barnes, T Imamura, K Wirtz, KH Becker, U Platt, TJ Wallington and N Washida. (2002). OH-initiated oxidation of benzene - Part II. Influence of elevated NOx concentrations. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 4(18), 4399-4411. 10.1039/b204398j
  • Volkamer, R, U Platt and K Wirtz. (23-Aug 2001). Primary and secondary glyoxal formation from aromatics: Experimental evidence for the bicycloalkyl-radical pathway from benzene, toluene, and p-xylene. JOURNAL OF PHYSICAL CHEMISTRY A, 105(33), 7865-7874. 10.1021/jp010152w
  • Volkamer, R, T Etzkorn, A Geyer and U Platt. (NOV 1998). Correction of the oxygen interference with UV spectroscopic (DOAS) measurements of monocyclic aromatic hydrocarbons in the atmosphere. ATMOSPHERIC ENVIRONMENT, 32(21), 3731-3747. 10.1016/S1352-2310(98)00095-8
  • Klotz, B, S Sorensen, I Barnes, KH Becker, T Etzkorn, R Volkamer, U Platt, K Wirtz and M Martin-Reviejo. (10-Dec 1998). Atmospheric oxidation of toluene in a large-volume outdoor photoreactor: In situ determination of ring-retaining product yields. JOURNAL OF PHYSICAL CHEMISTRY A, 102(50), 10289-10299. 10.1021/jp982719n