Cooperative Institute for Research in Environmental Sciences

Stephen A. Montzka

Stephen A. Montzka

Research Interests

Measuring and understanding changes in the chemical composition of the global atmosphere, particularly related to ozone-depleting substances, greenhouse gases, and hazardous air pollutants; identifying the role of natural and human-related processes underlying large-scale atmospheric changes, such as diagnosing variability in the atmosphere's oxidizing capacity and in terrestrial photosynthesis; quantifying fluxes of trace gases from the United States; and effectively communicating scientific results via national and international assessment reports.


Current Research

Interpreting observations from a long-term, ongoing sampling program for over 30 trace gases at 45 sites distributed throughout the global atmosphere is a continuing theme.  Data obtained from measurements of these samples via high-precision gas chromatography coupled to mass spectrometry have been used recently for 1) investigating the influence of the 2007 Adjustments to the Montreal Protocol on Substances that Deplete the Ozone Layer on the atmospheric concentrations of substitutes for ozone-depleting gases, 2) diagnosing the global and relative hemispheric concentration of the hydroxyl radical, 3) improving our understanding of the global budget of carbonyl sulfide, which may enhance our understanding of CO2 uptake by terrestrial photosynthesis. 

In addition to studying atmospheric changes on global scales, the U.S.-centric sampling program managed by the Carbon Cycle Group and NOAA has allowed investigations into national-scale issues.  Data obtained from this regional network have been used to quantify national-scale emissions of ozone-depleting substances and non-CO2 greenhouse gases so as to provide estimates independent of inventory-based techniques (HFC-134a and CCl4 in particular), improve the quantification and attribution of atmospheric impacts associated with oil and gas exploration and development (including hydraulic fracturing), and improve our understanding of continental-scale sources and sinks of carbonyl sulfide, a trace gas whose concentration changes over land to appear closely linked to terrestrial photosynthesis.

 


View Publications

  • Hossaini, R, MP Chipperfield, A Saiz-Lopez, JJ Harrison, R von Glasow, R Sommariva, E Atlas, M Navarro, SA Montzka, W Feng, S Dhomse, C Harth, J Muhle, C Lunder, S O'Doherty, D Young, S Reimann, MK Vollmer, PB Krummel and PF Bernath (2015), Growth in stratospheric chlorine from short-lived chemicals not controlled by the Montreal Protocol. Geophys. Res. Lett. Version: 1 42 (11) 4573-4580, issn: 0094-8276, ids: CM2LI, doi: 10.1002/2015GL063783
  • Hossaini, R, MP Chipperfield, SA Montzka, A Rap, S Dhomse and W Feng (2015), Efficiency of short-lived halogens at influencing climate through depletion of stratospheric ozone. Nat. Geosci. Version: 1 8 (3) 186-190, issn: 1752-0894, ids: CD0NL, doi: 10.1038/NGEO2363
  • Elvidge, ECL, DE Oram, JC Laube, AK Baker, SA Montzka, S Humphrey, DA O'Sullivan and CAM Brenninkmeijer (2015), Increasing concentrations of dichloromethane, CH2Cl2, inferred from CARIBIC air samples collected 1998-2012. Atmos. Chem. Phys. Version: 1 15 (4) 1939-1958, issn: 1680-7316, ids: CB7IP, doi: 10.5194/acp-15-1939-2015
  • Hu, L, SA Montzka, JB Miller, AE Andrews, SJ Lehman, BR Miller, K Thoning, C Sweeney, HL Chen, DS Godwin, K Masarie, L Bruhwiler, ML Fischer, SC Biraud, MS Torn, M Mountain, T Nehrkorn, J Eluszkiewicz, S Miller, RR Draxler, AF Stein, BD Hall, JW Elkins and PP Tans (2015), US emissions of HFC-134a derived for 2008-2012 from an extensive flask-air sampling network. J. Geophys. Res.-Atmos. Version: 1 120 (2) 801-825, issn: 2169-897X, ids: CC1QQ, doi: 10.1002/2014JD022617
  • Montzka, SA, M McFarland, SO Andersen, BR Miller, DW Fahey, BD Hall, L Hu, C Siso and JW Elkins (2015), Recent Trends in Global Emissions of Hydrochlorofluorocarbons and Hydrofluorocarbons: Reflecting on the 2007 Adjustments to the Montreal Protocol. J. Phys. Chem. A Version: 1 119 (19) 4439-4449, issn: 1089-5639, ids: CI6YV, doi: 10.1021/jp5097376, PubMed ID: 25405363
  • Graziosi, F, J Arduini, F Furlani, U Giostra, LJM Kuijpers, SA Montzka, BR Miller, SJ O'Doherty, A Stohl, P Bonasoni and M Maione (2015), European emissions of HCFC-22 based on eleven years of high frequency atmospheric measurements and a Bayesian inversion method. Atmos. Environ. Version: 1 112 196-207, issn: 1352-2310, ids: CK4JT, doi: 10.1016/j.atmosenv.2015.04.042
  • Sweeney, C, A Karion, S Wolter, T Newberger, D Guenther, JA Higgs, AE Andrews, PM Lang, D Neff, E Dlugokencky, JB Miller, SA Montzka, BR Miller, KA Masarie, SC Biraud, PC Novelli, M Crotwell, AM Crotwell, K Thoning and PP Tans (2015), Seasonal climatology of CO2 across North America from aircraft measurements in the NOAA/ESRL Global Greenhouse Gas Reference Network. J. Geophys. Res.-Atmos. Version: 1 120 (10) 5155-5190, issn: 2169-897X, ids: CL1IT, doi: 10.1002/2014JD022591
  • Ou-Yang, CF, CC Chang, SP Chen, C Chew, BR Lee, CY Chang, SA Montzka, GS Dutton, JH Butler, JW Elkins and JL Wang (2015), Changes in the levels and variability of halocarbons and the compliance with the Montreal Protocol from an urban view. Chemosphere Version: 1 138 438-446, issn: 0045-6535, ids: CS0SP, doi: 10.1016/j.chemosphere.2015.06.070, PubMed ID: 26160300
  • Lennartz, ST, G Krysztofiak, CA Marandino, BM Sinnhuber, S Tegtmeier, F Ziska, R Hossaini, K Kruger, SA Montzka, E Atlas, DE Oram, T Keber, H Bonisch and B Quack (2015), Modelling marine emissions and atmospheric distributions of halocarbons and dimethyl sulfide: the influence of prescribed water concentration vs. prescribed emissions. Atmos. Chem. Phys. Version: 1 15 (20) 11753-11772, issn: 1680-7316, ids: CV5NE, doi: 10.5194/acp-15-11753-2015
  • Commane, R, LK Meredith, IT Baker, JA Berry, JW Munger, SA Montzka, PH Templer, SM Juice, MS Zahniser and SC Wofsy (2015), Seasonal fluxes of carbonyl sulfide in a midlatitude forest. Proc. Natl. Acad. Sci. USA Version: 1 112 (46) 14162-14167, issn: 0027-8424, ids: CW7IA, doi: 10.1073/pnas.1504131112, PubMed ID: 26578759
  • Kuai, L, JR Worden, JE Campbell, SS Kulawik, KF Li, M Lee, RJ Weidner, SA Montzka, FL Moore, JA Berry, I Baker, AS Denning, HS Bian, KW Bowman, JJ Liu and YL Yung (2015), Estimate of carbonyl sulfide tropical oceanic surface fluxes using Aura Tropospheric Emission Spectrometer observations. J. Geophys. Res.-Atmos. Version: 1 120 (20) , issn: 2169-897X, ids: CX1CG, doi: 10.1002/2015JD023493
  • Fortems-Cheiney, A, M Saunois, I Pison, F Chevallier, P Bousquet, C Cressot, SA Montzka, PJ Fraser, MK Vollmer, PG Simmonds, D Young, S O'Doherty, RF Weiss, F Artuso, B Barletta, DR Blake, S Li, C Lunder, BR Miller, S Park, R Prinn, T Saito, LP Steele and Y Yokouchi (2015), Increase in HFC-134a emissions in response to the success of the Montreal Protocol. J. Geophys. Res.-Atmos. Version: 1 120 (22) , issn: 2169-897X, ids: DA5EJ, doi: 10.1002/2015JD023741
  • Patra, PK, MC Krol, SA Montzka, T Arnold, EL Atlas, BR Lintner, BB Stephens, B Xiang, JW Elkins, PJ Fraser, A Ghosh, EJ Hintsa, DF Hurst, K Ishijima, PB Krummel, BR Miller, K Miyazaki, FL Moore, J Muhle, S O'Doherty, RG Prinn, LP Steele, M Takigawa, HJ Wang, RF Weiss, SC Wofsy and D Young (2014), Observational evidence for interhemispheric hydroxyl-radical parity. Nature Version: 1 513 (7517) 219-223, issn: 0028-0836, ids: AO5DP, doi: 10.1038/nature13721, PubMed ID: 25209800
  • Hall, BD, A Engel, J Muhle, JW Elkins, F Artuso, E Atlas, M Aydin, D Blake, EG Brunke, S Chiavarini, PJ Fraser, J Happell, PB Krummel, I Levin, M Loewenstein, M Maione, SA Montzka, S O'Doherty, S Reimann, G Rhoderick, ES Saltzman, HE Scheel, LP Steele, MK Vollmer, RF Weiss, D Worthy and Y Yokouchi (2014), Results from the International Halocarbons in Air Comparison Experiment (IHALACE). Atmos. Meas. Tech. Version: 1 7 (2) 469-490, issn: 1867-1381, ids: AC3AF, doi: 10.5194/amt-7-469-2014
  • Kuai, L, J Worden, SS Kulawik, SA Montzka and J Liu (2014), Characterization of Aura TES carbonyl sulfide retrievals over ocean. Atmos. Meas. Tech. Version: 1 7 (1) 163-172, issn: 1867-1381, ids: AA2SW, doi: 10.5194/amt-7-163-2014
  • Cressot, C, F Chevallier, P Bousquet, C Crevoisier, EJ Dlugokencky, A Fortems-Cheiney, C Frankenberg, R Parker, I Pison, RA Scheepmaker, SA Montzka, PB Krummel, LP Steele and RL Langenfelds (2014), On the consistency between global and regional methane emissions inferred from SCIAMACHY, TANSO-FTS, IASI and surface measurements. Atmos. Chem. Phys. Version: 1 14 (2) 577-592, issn: 1680-7316, ids: AA1JZ, doi: 10.5194/acp-14-577-2014
  • Berkelhammer, M, D Asaf, C Still, S Montzka, D Noone, M Gupta, R Provencal, H Chen and D Yakir (2014), Constraining surface carbon fluxes using in situ measurements of carbonyl sulfide and carbon dioxide. Glob. Biogeochem. Cycle Version: 1 28 (2) 161-179, issn: 0886-6236, ids: AD1SP, doi: 10.1002/2013GB004644
  • Petron, G, A Karion, C Sweeney, BR Miller, SA Montzka, GJ Frost, M Trainer, P Tans, A Andrews, J Kofler, D Helmig, D Guenther, E Dlugokencky, P Lang, T Newberger, S Wolter, B Hall, P Novelli, A Brewer, S Conley, M Hardesty, R Banta, A White, D Noone, D Wolfe and R Schnell (2014), A new look at methane and nonmethane hydrocarbon emissions from oil and natural gas operations in the Colorado Denver-Julesburg Basin. J. Geophys. Res.-Atmos. Version: 1 119 (11) 6836-6852, issn: 2169-897X, ids: AJ8RK, doi: 10.1002/2013JD021272
  • Xiang, B, PK Patra, SA Montzka, SM Miller, JW Elkins, FL Moore, EL Atlas, BR Miller, RF Weiss, RG Prinn and SC Wofsy (2014), Global emissions of refrigerants HCFC-22 and HFC-134a: Unforeseen seasonal contributions. Proc. Natl. Acad. Sci. U. S. A. Version: 1 111 (49) 17379-17384, issn: 0027-8424, ids: AU9NR, doi: 10.1073/pnas.1417372111, PubMed ID: 25422438
  • Caulton, DR, PB Shepson, RL Santoro, JP Sparks, RW Howarth, AR Ingraffea, MOL Cambaliza, C Sweeney, A Karion, KJ Davis, BH Stirm, SA Montzka and BR Miller (2014), Toward a better understanding and quantification of methane emissions from shale gas development. Proc. Natl. Acad. Sci. U. S. A. Version: 1 111 (17) 6237-6242, issn: 0027-8424, ids: AG1TL, doi: 10.1073/pnas.1316546111, PubMed ID: 24733927
  • Maione, M, F Graziosi, J Arduini, F Furlani, U Giostra, DR Blake, P Bonasoni, X Fang, SA Montzka, SJ O'Doherty, S Reimann, A Stohl and MK Vollmer (2014), Estimates of European emissions of methyl chloroform using a Bayesian inversion method. Atmos. Chem. Phys. Version: 1 14 (18) 9755-9770, issn: 1680-7316, ids: AP3QX, doi: 10.5194/acp-14-9755-2014
  • Umezawa, T, AK Baker, D Oram, C Sauvage, D O'Sullivan, A Rauthe-Schoch, SA Montzka, A Zahn and CAM Brenninkmeijer (2014), Methyl chloride in the upper troposphere observed by the CARIBIC passenger aircraft observatory: Large-scale distributions and Asian summer monsoon outflow. J. Geophys. Res-Atmos. Version: 1 119 (9) 5542-5558, issn: 2169-897X, ids: AK3QS, doi: 10.1002/2013JD021396
  • Rigby, M, RG Prinn, S O'Doherty, SA Montzka, A McCulloch, CM Harth, J Muhle, PK Salameh, RF Weiss, D Young, PG Simmonds, BD Hall, GS Dutton, D Nance, DJ Mondeel, JW Elkins, PB Krummel, LP Steele and PJ Fraser (2013), Re-evaluation of the lifetimes of the major CFCs and CH3CCl3 using atmospheric trends. Atmos. Chem. Phys. Version: 1 13 (5) 2691-2702, issn: 1680-7316, ids: 117NP, doi: 10.5194/acp-13-2691-2013
  • Karion, A, C Sweeney, G Petron, G Frost, RM Hardesty, J Kofler, BR Miller, T Newberger, S Wolter, R Banta, A Brewer, E Dlugokencky, P Lang, SA Montzka, R Schnell, P Tans, M Trainer, R Zamora and S Conley (2013), Methane emissions estimate from airborne measurements over a western United States natural gas field. Geophys. Res. Lett. Version: 1 40 (16) 4393-4397, issn: 0094-8276, ids: 219SI, doi: 10.1002/grl.50811
  • Berry, J, A Wolf, JE Campbell, I Baker, N Blake, D Blake, AS Denning, SR Kawa, SA Montzka, U Seibt, K Stimler, D Yakir and ZX Zhu (2013), A coupled model of the global cycles of carbonyl sulfide and CO2: A possible new window on the carbon cycle. J. Geophys. Res.-Biogeosci. Version: 1 118 (2) 842-852, issn: 2169-8953, ids: 224TU, doi: 10.1002/jgrg.20068
  • Lehman, SJ, JB Miller, C Wolak, J Southon, PP Tans, SA Montzka, C Sweeney, A Andrews, B LaFranchi, TP Guilderson and JC Turnbull (2013), ALLOCATION OF TERRESTRIAL CARBON SOURCES USING (CO2)-C-14: METHODS, MEASUREMENT, AND MODELING. Radiocarbon Version: 1 55 (3-Feb) 1484-1495, issn: 0033-8222, ids: 235WK
  • LaFranchi, BW, G Petron, JB Miller, SJ Lehman, AE Andrews, EJ Dlugokencky, B Hall, BR Miller, SA Montzka, W Neff, PC Novelli, C Sweeney, JC Turnbull, DE Wolfe, PP Tans, KR Gurney and TP Guilderson (2013), Constraints on emissions of carbon monoxide, methane, and a suite of hydrocarbons in the Colorado Front Range using observations of (CO2)-C-14. Atmos. Chem. Phys. Version: 1 13 (21) 11101-11120, issn: 1680-7316, ids: 253PP, doi: 10.5194/acp-13-11101-2013
  • Miller, SM, SC Wofsy, AM Michalak, EA Kort, AE Andrews, SC Biraud, EJ Dlugokencky, J Eluszkiewicz, ML Fischer, G Janssens-Maenhout, BR Miller, JB Miller, SA Montzka, T Nehrkorn and C Sweeney (2013), Anthropogenic emissions of methane in the United States. Proc. Natl. Acad. Sci. U. S. A. Version: 1 110 (50) 20018-20022, issn: 0027-8424, ids: 266YY, doi: 10.1073/pnas.1314392110, PubMed ID: 24277804
  • Hossaini, R, H Mantle, MP Chipperfield, SA Montzka, P Hamer, E Ziska, B Quack, K Kruger, S Tegtmeier, E Atlas, S Sala, A Engel, H Bonisch, T Keber, D Oram, G Mills, C Ordonez, A Saiz-Lopez, N Warwick, Q Liang, W Feng, F Moore, BR Miller, V Marecal, NAD Richards, M Dorf and K Pfeilsticker (2013), Evaluating global emission inventories of biogenic bromocarbons. Atmos. Chem. Phys. Version: 1 13 (23) 11819-11838, issn: 1680-7316, ids: 274OV, doi: 10.5194/acp-13-11819-2013
  • Waugh, DW, AM Crotwell, EJ Dlugokencky, GS Dutton, JW Elkins, BD Hall, EJ Hintsa, DF Hurst, SA Montzka, DJ Mondeel, FL Moore, JD Nance, EA Ray, SD Steenrod, SE Strahan and C Sweeney (2013), Tropospheric SF6: Age of air from the Northern Hemisphere midlatitude surface. J. Geophys. Res.-Atmos. Version: 1 118 (19) 11429-11441, issn: 2169-897X, ids: 297PF, doi: 10.1002/jgrd.50848
  • Blunden, J, DS Arndt, C Achberger, SA Ackerman, A Albanil, P Alexander, EJ Alfaro, R Allan, LM Alves, JA Amador, P Ambenje, S Andrianjafinirina, J Antonov, JA Aravequia, A Arendt, J Arevalo, I Ashik, Z Atheru, V Banzon, MO Baringer, S Barreira, DE Barriopedro, G Beard, A Becker, MJ Behrenfeld, GD Bell, A Benedetti, G Bernhard, P Berrisford, DI Berry, U Bhatt, M Bidegain, N Bindoff, P Bissolli, ES Blake, R Booneeady, M Bosilovich, JE Box, T Boyer, GO Braathen, DH Bromwich, R Brown, L Brown, L Bruhwiler, ON Bulygina, D Burgess, J Burrows, B Calderon, SJ Camargo, J Campbell, Y Cao, J Cappelen, G Carrasco, DP Chambers, L Chang'a, P Chappell, W Chehade, M Cheliah, HH Christiansen, JR Christy, P Ciais, CAS Coelho, JG Cogley, S Colwell, JN Cross, J Crouch, SA Cunningham, M Dacic, RAM De Jeu, FS Dekaa, M Demircan, C Derksen, HJ Diamond, EJ Dlugokencky, K Dohan, AJ Dolman, CM Domingues, SF Dong, WA Dorigo, DS Drozdov, CR Duguay, RJH Dunn, AM Duran-Quesada, GS Dutton, C Ehmann, JW Elkins, C Euscategui, JS Famiglietti, F Fang, N Fauchereau, RA Feely, BM Fekete, C Fenimore, VE Fioletov, CT Fogarty, RL Fogt, CK Folland, MJ Foster, E Frajka-Williams, BA Franz, SH Frith, I Frolov, C Ganter, S Garzoli, ML Geai, S Gerland, W Gitau, KL Gleason, N Gobron, SB Goldenberg, G Goni, SA Good, J Gottschalck, MC Gregg, G Griffiths, JU Grooss, C Guard, SK Gupta, BD Hall, MS Halpert, Y Harada, C Hauri, AK Heidinger, A Heikkila, RR Heim, P Heimbach, HG Hidalgo, K Hilburn, SP Ho, WR Hobbs, Holgate, A Hovsepyan, ZZ Hu, P Hughes, DF Hurst, R Ingvaldsen, A Inness, E Jaimes, M Jakobsson, AI James, MO Jeffries, WE Johns, B Johnsen, GC Johnson, B Johnson, LT Jones, G Jumaux, K Kabidi, JW Kaiser, A Kamga, KK Kang, TO Kanzow, HY Kao, LM Keller, JJ Kennedy, J Key, S Khatiwala, HK Pour, AL Kholodov, M Khoshkam, A Kijazi, T Kikuchi, BM Kim, SJ Kim, TB Kimberlain, JA Knaff, NN Korshunova, T Koskela, VE Kousky, N Kramarova, DP Kratz, R Krishfield, A Kruger, MC Kruk, A Kumar, GSE Lagerloef, K Lakkala, MA Lander, CW Landsea, M Lankhorst, T Laurila, MA Lazzara, C Lee, E Leuliette, S Levitus, M L'Heureux, J Lieser, II Lin, YY Liu, Y Liu, HX Liu, YJ Liu, R Lobato-Sanchez, R Locarnini, NG Loeb, H Loeng, CS Long, AM Lorrey, P Luhunga, R Lumpkin, JJ Luo, JM Lyman, AM Macdonald, BC Maddux, C Malekela, G Manney, SS Marchenko, JA Marengo, J Marotzke, JJ Marra, R Martinez-Guingla, RA Massom, JT Mathis, C McBride, G McCarthy, TR McVicar, C Mears, W Meier, CS Meinen, M Menendez, MA Merrifield, E Mitchard, GT Mitchum, SA Montzka, JJ Morcrette, T Mote, J Muhle, B Muhr, AB Mullan, R Muller, ER Nash, RS Nerem, ML Newlin, PA Newman, H Ng'ongolo, JJ Nieto, S Nishino, H Nitsche, J Noetzli, NG Oberman, A Obregon, LA Ogallo, CS Oludhe, MI Omar, J Overland, L Oyunjargal, RM Parinussa, GH Park, EH Park, D Parker, RJ Pasch, R Pascual-Ramirez, MS Pelto, O Penalba, L Peng, DK Perovich, AB Pezza, D Phillips, R Pickart, B Pinty, MC Pitts, SG Purkey, S Quegan, J Quintana, B Rabe, F Rahimzadeh, N Raholijao, I Raiva, M Rajeevan, V Ramiandrisoa, A Ramos, S Ranivoarissoa, NA Rayner, D Rayner, VN Razuveav, J Reagan, P Reid, J Renwick, J Revedekar, J Richter-Menge, IL Rivera, DA Robinson, M Rodell, VE Romanovsky, J Ronchail, KH Rosenlof, CL Sabine, MA Salvador, A Sanchez-Lugo, ML Santee, I Sasgen, P Sawaengphokhai, A Sayouri, TA Scambos, U Schauer, J Schemm, P Schlosser, C Schmid, C Schreck, I Semiletov, U Send, S Sensoy, A Setzer, J Severinghaus, N Shakhova, M Sharp, NI Shiklomanov, DA Siegel, VBS Silva, FDS Silva, F Sima, P Simeonov, I Simmonds, A Simmons, M Skansi, DA Smeed, WM Smethie, AB Smith, C Smith, SL Smith, TM Smith, V Sokolov, AK Srivastava, Stackhouse PW Jr, S Stammerjohn, M Steele, K Steffen, W Steinbrecht, T Stephenson, J Su, T Svendby, W Sweet, T Takahashi, RM Tanabe, MA Taylor, M Tedesco, WL Teng, JN Thepaut, WM Thiaw, R Thoman, P Thompson, PW Thorne, ML Timmermans, S Tobin, J Toole, BC Trewin, RM Trigo, A Trotman, M Tschudi, RSW van de Wal, GR Van der Werf, R Vautard, JL Vazquez, G Vieira, L Vincent, RS Vose, WW Wagner, J Wahr, J Walsh, JH Wang, CZ Wang, M Wang, SH Wang, L Wang, R Wanninkhof, S Weaver, M Weber, PJ Werdell, R Whitewood, S Wijffels, AC Wilber, JD Wild, KM Willett, W Williams, JK Willis, G Wolken, T Wong, R Woodgate, D Worthy, B Wouters, AJ Wovrosh, Y Xue, R Yamada, ZG Yin, LS Yu, LY Zhang, PQ Zhang, L Zhao, J Zhao, W Zhong, J Ziemke and S Zimmermann (2013), State of the Climate in 2012. Bull. Amer. Meteor. Soc. Version: 1 94 (8) S1-S238, issn: 0003-0007, ids: 304EZ
  • Asaf, D, E Rotenberg, F Tatarinov, U Dicken, SA Montzka and D Yakir (2013), Ecosystem photosynthesis inferred from measurements of carbonyl sulphide flux. Nat. Geosci. Version: 1 6 (3) 186-190, issn: 1752-0894, ids: 117IC, doi: 10.1038/ngeo1730
  • Miller, JB, SJ Lehman, SA Montzka, C Sweeney, BR Miller, A Karion, C Wolak, EJ Dlugokencky, J Southon, JC Turnbull and PP Tans (2012), Linking emissions of fossil fuel CO2 and other anthropogenic trace gases using atmospheric (CO2)-C-14. J. Geophys. Res.-Atmos. Version: 1 117 , Art. No. D08302, issn: 2169-897X, ids: 930FM, doi: 10.1029/2011JD017048
  • Petron, G, G Frost, BR Miller, AI Hirsch, SA Montzka, A Karion, M Trainer, C Sweeney, AE Andrews, L Miller, J Kofler, A Bar-Ilan, EJ Dlugokencky, L Patrick, CT Moore, TB Ryerson, C Siso, W Kolodzey, PM Lang, T Conway, P Novelli, K Masarie, B Hall, D Guenther, D Kitzis, J Miller, D Welsh, D Wolfe, W Neff and P Tans (2012), Hydrocarbon emissions characterization in the Colorado Front Range: A pilot study. J. Geophys. Res.-Atmos. Version: 1 117 , Art. No. D04304, issn: 2169-897X, ids: 899DS, doi: 10.1029/2011JD016360
  • Hossaini, R, MP Chipperfield, W Feng, TJ Breider, E Atlas, SA Montzka, BR Miller, F Moore and J Elkins (2012), The contribution of natural and anthropogenic very short-lived species to stratospheric bromine. Atmos. Chem. Phys. Version: 1 12 (1) 371-380, issn: 1680-7316, ids: 892XZ, doi: 10.5194/acp-12-371-2012
  • Montzka, SA, M Krol, E Dlugokencky, B Hall, P Jockel and J Lelieveld (2011), Small Interannual Variability of Global Atmospheric Hydroxyl. Science Version: 1 331 (6013) 67-69, issn: 0036-8075, ids: 703JK, doi: 10.1126/science.1197640
  • Blonquist, JM, SA Montzka, JW Munger, D Yakir, AR Desai, D Dragoni, TJ Griffis, RK Monson, RL Scott and DR Bowling (2011), The potential of carbonyl sulfide as a proxy for gross primary production at flux tower sites. J. Geophys. Res.-Biogeosci. Version: 1 116 , Art. No. G04019, issn: 0148-0227, ids: 851IA, doi: 10.1029/2011JG001723
  • Battle, MO, JP Severinghaus, ED Sofen, D Plotkin, AJ Orsi, M Aydin, SA Montzka, T Sowers and PP Tans (2011), Controls on the movement and composition of firn air at the West Antarctic Ice Sheet Divide. Atmos. Chem. Phys. Version: 1 11 (21) 11007-11021, issn: 1680-7316, ids: 847IZ, doi: 10.5194/acp-11-11007-2011
  • Stimler, K, JA Berry, SA Montzka and D Yakir (2011), Association between Carbonyl Sulfide Uptake and (18)Delta during Gas Exchange in C-3 and C-4 Leaves. Plant Physiol. Version: 1 157 (1) 509-517, issn: 0032-0889, ids: 814XZ, doi: 10.1104/pp.111.176578
  • Aydin, M, KR Verhulst, ES Saltzman, MO Battle, SA Montzka, DR Blake, Q Tang and MJ Prather (2011), Recent decreases in fossil-fuel emissions of ethane and methane derived from firn air. Nature Version: 1 476 (7359) 198-201, issn: 0028-0836, ids: 805MU, doi: 10.1038/nature10352
  • Montzka, SA, L Kuijpers, MO Battle, M Aydin, KR Verhulst, ES Saltzman and DW Fahey (2010), Recent increases in global HFC-23 emissions. Geophys. Res. Lett. Version: 1 37 , Art. No. L02808, issn: 0094-8276, ids: 550KI, doi: 10.1029/2009GL041195
  • Warneke, C, KD Froyd, J Brioude, R Bahreini, CA Brock, J Cozic, JA de Gouw, DW Fahey, R Ferrare, JS Holloway, AM Middlebrook, L Miller, S Montzka, JP Schwarz, H Sodemann, JR Spackman and A Stohl (2010), An important contribution to springtime Arctic aerosol from biomass burning in Russia. Geophys. Res. Lett. Version: 1 37 , Art. No. L01801, issn: 0094-8276, ids: 542OZ, doi: 10.1029/2009GL041816
  • Severinghaus, JP, MR Albert, ZR Courville, MA Fahnestock, K Kawamura, SA Montzka, J Muhle, TA Scambos, E Shields, CA Shuman, M Suwa, P Tans and RF Weiss (2010), Deep air convection in the firn at a zero-accumulation site, central Antarctica. Earth Planet. Sci. Lett. Version: 1 293 (4-Mar) 359-367, issn: 0012-821X, ids: 598ES, doi: 10.1016/j.epsl.2010.03.003
  • Aydin, M, SA Montzka, MO Battle, MB Williams, WJ De Bruyn, JH Butler, KR Verhulst, C Tatum, BK Gun, DA Plotkin, BD Hall and ES Saltzman (2010), Post-coring entrapment of modern air in some shallow ice cores collected near the firn-ice transition: evidence from CFC-12 measurements in Antarctic firn air and ice cores. Atmos. Chem. Phys. Version: 1 10 (11) 5135-5144, issn: 1680-7316, ids: 610PI, doi: 10.5194/acp-10-5135-2010
  • Stimler, K, SA Montzka, JA Berry, Y Rudich and D Yakir (2010), Relationships between carbonyl sulfide (COS) and CO2 during leaf gas exchange. New Phytol. Version: 1 186 (4) 869-878, issn: 0028-646X, ids: 594HK, doi: 10.1111/j.1469-8137.2010.03218.x
  • Xiao, X, RG Prinn, PJ Fraser, PG Simmonds, RF Weiss, S O'Doherty, BR Miller, PK Salameh, CM Harth, PB Krummel, LW Porter, J Muhle, BR Greally, D Cunnold, R Wang, SA Montzka, JW Elkins, GS Dutton, TM Thompson, JH Butler, BD Hall, S Reimann, MK Vollmer, F Stordal, C Lunder, M Maione, J Arduini and Y Yokouchi (2010), Optimal estimation of the surface fluxes of methyl chloride using a 3-D global chemical transport model. Atmos. Chem. Phys. Version: 1 10 (12) 5515-5533, issn: 1680-7316, ids: 618YC, doi: 10.5194/acp-10-5515-2010
  • Brioude, J, RW Portmann, JS Daniel, OR Cooper, GJ Frost, KH Rosenlof, C Granier, AR Ravishankara, SA Montzka and A Stohl (2010), Variations in ozone depletion potentials of very short-lived substances with season and emission region. Geophys. Res. Lett. Version: 1 37 , Art. No. L19804, issn: 0094-8276, ids: 657SQ, doi: 10.1029/2010GL044856
  • Oltmans, SJ, AS Lefohn, JM Harris, DW Tarasick, AM Thompson, H Wernli, BJ Johnson, PC Novelli, SA Montzka, JD Ray, LC Patrick, C Sweeney, A Jefferson, T Dann, J Davies, M Shapiro and BN Holben (2010), Enhanced ozone over western North America from biomass burning in Eurasia during April 2008 as seen in surface and profile observations. Atmos. Environ. Version: 1 44 (35) 4497-4509, issn: 1352-2310, ids: 672FL, doi: 10.1016/j.atmosenv.2010.07.004
  • Gilman, JB, JF Burkhart, BM Lerner, EJ Williams, WC Kuster, PD Goldan, PC Murphy, C Warneke, C Fowler, SA Montzka, BR Miller, L Miller, SJ Oltmans, TB Ryerson, OR Cooper, A Stohl and JA de Gouw (2010), Ozone variability and halogen oxidation within the Arctic and sub-Arctic springtime boundary layer. Atmos. Chem. Phys. Version: 1 10 (21) 10223-10236, issn: 1680-7316, ids: 680CQ, doi: 10.5194/acp-10-10223-2010
  • Warneke, C, R Bahreini, J Brioude, CA Brock, JA de Gouw, DW Fahey, KD Froyd, JS Holloway, A Middlebrook, L Miller, S Montzka, DM Murphy, J Peischl, TB Ryerson, JP Schwarz, JR Spackman and P Veres (2009), Biomass burning in Siberia and Kazakhstan as an important source for haze over the Alaskan Arctic in April 2008. Geophys. Res. Lett. Version: 1 36 , Art. No. L02813, issn: 0094-8276, ids: 401ZB, doi: 10.1029/2008GL036194
  • Montzka, SA, BD Hall and JW Elkins (2009), Accelerated increases observed for hydrochlorofluorocarbons since 2004 in the global atmosphere. Geophys. Res. Lett. Version: 1 36 , Art. No. L03804, issn: 0094-8276, ids: 404SV, doi: 10.1029/2008GL036475
  • de Gouw, JA, C Warneke, SA Montzka, JS Holloway, DD Parrish, FC Fehsenfeld, EL Atlas, RJ Weber and M Flocke (2009), Carbonyl sulfide as an inverse tracer for biogenic organic carbon in gas and aerosol phases. Geophys. Res. Lett. Version: 1 36 , Art. No. L05804, issn: 0094-8276, ids: 415PM, doi: 10.1029/2008GL036910
  • Yvon-Lewis, SA, ES Saltzman and SA Montzka (2009), Recent trends in atmospheric methyl bromide: analysis of post-Montreal Protocol variability. Atmos. Chem. Phys. Version: 1 9 (16) 5963-5974, issn: 1680-7316, ids: 489EY
  • Dlugokencky, EJ, L Bruhwiler, JWC White, LK Emmons, PC Novelli, SA Montzka, KA Masarie, PM Lang, AM Crotwell, JB Miller and LV Gatti (2009), Observational constraints on recent increases in the atmospheric CH4 burden. Geophys. Res. Lett. Version: 1 36 , Art. No. L18803, issn: 0094-8276, ids: 497JH, doi: 10.1029/2009GL039780
  • Turnbull, JC, JB Miller, SJ Lehman, D Hurst, W Peters, PP Tans, J Southon, SA Montzka, JW Elkins, DJ Mondeel, PA Romashkin, N Elansky and A Skorokhod (2009), Spatial distribution of Delta(CO2)-C-14 across Eurasia: measurements from the TROICA-8 expedition. Atmos. Chem. Phys. Version: 1 9 (1) 175-187, issn: 1680-7316, ids: 395DO
  • Campbell, JE, GR Carmichael, T Chai, M Mena-Carrasco, Y Tang, DR Blake, NJ Blake, SA Vay, GJ Collatz, I Baker, JA Berry, SA Montzka, C Sweeney, JL Schnoor and CO Stanier (2008), Photosynthetic Control of Atmospheric Carbonyl Sulfide During the Growing Season. Science Version: 1 322 (5904) 1085-1088, issn: 0036-8075, ids: 371YD, doi: 10.1126/science.1164015, PubMed ID: 19008442
  • Montzka, SA, P Calvert, BD Hall, JW Elkins, TJ Conway, PP Tans and C Sweeney (2007), On the global distribution, seasonality, and budget of atmospheric carbonyl sulfide (COS) and some similarities to CO2. J. Geophys. Res.-Atmos. Version: 1 112 (D9) , Art. No. D09302, issn: 0148-0227, ids: 165LI, doi: 10.1029/2006JD007665
  • Butler, JH, DB King, JM Lobert, SA Montzka, SA Yvon-Lewis, BD Hall, NJ Warwick, DJ Mondeel, M Aydin and JW Elkins (2007), Oceanic distributions and emissions of short-lived halocarbons. Glob. Biogeochem. Cycle Version: 1 21 (1) , Art. No. GB1023, issn: 0886-6236, ids: 150AA, doi: 10.1029/2006GB002732
  • Montzka, SA, M Aydin, M Battle, JH Butler, ES Saltzman, BD Hall, AD Clarke, D Mondeel and JW Elkins (2004), A 350-year atmospheric history for carbonyl sulfide inferred from Antarctic firn air and air trapped in ice. J. Geophys. Res.-Atmos. Version: 1 109 (D22) , Art. No. D22302, issn: 2169-897X, ids: 875DO, doi: 10.1029/2004JD004686
  • Montzka, SA, JH Butler, BD Hall, DJ Mondeel and JW Elkins (2003), A decline in tropospheric organic bromine. Geophys. Res. Lett. Version: 1 30 (15) , Art. No. 1826, issn: 0094-8276, ids: 713PR, doi: 10.1029/2003GL017745
  • King, DB, JH Butler, SA Montzka, SA Yvon-Lewis and JW Elkins (2000), Implications of methyl bromide supersaturations in the temperate North Atlantic Ocean. J. Geophys. Res.-Atmos. Version: 1 105 (D15) 19763-19769, issn: 2169-897X, ids: 347LG, doi: 10.1029/2000JD900251
  • Montzka, SA, CM Spivakovsky, JH Butler, JW Elkins, LT Lock and DJ Mondeel (2000), New observational constraints for atmospheric hydroxyl on global and hemispheric scales. Science Version: 1 288 (5465) 500-503, issn: 0036-8075, ids: 306YJ, doi: 10.1126/science.288.5465.500
  • Butler, JH, M Battle, ML Bender, SA Montzka, AD Clarke, ES Saltzman, CM Sucher, JP Severinghaus and JW Elkins (1999), A record of atmospheric halocarbons during the twentieth century from polar firn air. Nature Version: 1 399 (6738) 749-755, issn: 0028-0836, ids: 210JP, doi: 10.1038/21586
  • Wamsley, PR, JW Elkins, DW Fahey, GS Dutton, CM Volk, RC Myers, SA Montzka, JH Butler, AD Clarke, PJ Fraser, LP Steele, MP Lucarelli, EL Atlas, SM Schauffler, DR Blake, FS Rowland, WT Sturges, JM Lee, SA Penkett, A Engel, RM Stimpfle, KR Chan, DK Weisenstein, MKW Ko and RJ Salawitch (1998), Distribution of halon-1211 in the upper troposphere and lower stratosphere and the 1994 total bromine budget. J. Geophys. Res.-Atmos. Version: 1 103 (D1) 1513-1526, issn: 2169-897X, ids: YR851, doi: 10.1029/97JD02466
  • Frost, GJ, M Trainer, G Allwine, MP Buhr, JG Calvert, CA Cantrell, FC Fehsenfeld, PD Goldan, J Herwehe, G Hubler, WC Kuster, R Martin, RT McMillen, SA Montzka, RB Norton, DD Parrish, BA Ridley, RE Shetter, JG Walega, BA Watkins, HH Westberg and EJ Williams (1998), Photochemical ozone production in the rural southeastern United States during the 1990 Rural Oxidants in the Southern Environment (ROSE) program. J. Geophys. Res.-Atmos. Version: 1 103 (D17) 22491-22508, issn: 2169-897X, ids: 120WM, doi: 10.1029/98JD00881
  • Butler, JH, SA Montzka, AD Clarke, JM Lobert and JW Elkins (1998), Growth and distribution of halons in the atmosphere. J. Geophys. Res.-Atmos. Version: 1 103 (D1) 1503-1511, issn: 2169-897X, ids: YR851, doi: 10.1029/97JD02853
  • Lobert, JM, SA YvonLewis, JH Butler, SA Montzka and RC Myers (1997), Undersaturation of CH3Br in the Southern Ocean. Geophys. Res. Lett. Version: 1 24 (2) 171-172, issn: 0094-8276, ids: WD301, doi: 10.1029/96GL03928
  • Montzka, SA, JH Butler, RC Myers, TM Thompson, TH Swanson, AD Clarke, LT Lock and JW Elkins (1996), Decline in the tropospheric abundance of halogen from halocarbons: Implications for stratospheric ozone depletion. Science Version: 1 272 (5266) 1318-1322, issn: 0036-8075, ids: UN472, doi: 10.1126/science.272.5266.1318
  • Montzka, SA, RC Myers, JH Butler, JW Elkins, LT Lock, AD Clarke and AH Goldstein (1996), Observations of HFC-134a in the remote troposphere. Geophys. Res. Lett. Version: 1 23 (2) 169-172, issn: 0094-8276, ids: TQ467, doi: 10.1029/95GL03590
  • WOODBRIDGE, EL, JW ELKINS, DW FAHEY, LE HEIDT, S SOLOMON, TJ BARING, TM GILPIN, WH POLLOCK, SM SCHAUFFLER, EL ATLAS, M LOEWENSTEIN, JR PODOLSKE, CR WEBSTER, RD MAY, JM GILLIGAN, SA MONTZKA, KA BOERING and RJ SALAWITCH (1995), ESTIMATES OF TOTAL ORGANIC AND INORGANIC CHLORINE IN THE LOWER STRATOSPHERE FROM IN-SITU AND FLASK MEASUREMENTS DURING AASE-II. J. Geophys. Res.-Atmos. Version: 1 100 (D2) 3057-3064, issn: 2169-897X, ids: QJ630, doi: 10.1029/94JD02744
  • MONTZKA, SA, M TRAINER, WM ANGEVINE and FC FEHSENFELD (1995), MEASUREMENTS OF 3-METHYL FURAN, METHYL VINYL KETONE, AND METHACROLEIN AT A RURAL FORESTED SITE IN THE SOUTHEASTERN UNITED-STATES. J. Geophys. Res.-Atmos. Version: 1 100 (D6) 11393-11401, issn: 2169-897X, ids: RF051, doi: 10.1029/95JD01132
  • BERTMAN, SB, JM ROBERTS, DD PARRISH, MP BUHR, PD GOLDAN, WC KUSTER, FC FEHSENFELD, SA MONTZKA and H WESTBERG (1995), EVOLUTION OF ALKYL NITRATES WITH AIR-MASS AGE. J. Geophys. Res.-Atmos. Version: 1 100 (D11) 22805-22813, issn: 2169-897X, ids: TF791, doi: 10.1029/95JD02030
  • BUHR, M, D PARRISH, J ELLIOT, J HOLLOWAY, J CARPENTER, P GOLDAN, W KUSTER, M TRAINER, S MONTZKA, S MCKEEN and F FEHSENFELD (1995), EVALUATION OF OZONE PRECURSOR SOURCE TYPES USING PRINCIPAL COMPONENT ANALYSIS OF AMBIENT AIR MEASUREMENTS IN RURAL ALABAMA. J. Geophys. Res.-Atmos. Version: 1 100 (D11) 22853-22860, issn: 2169-897X, ids: TF791, doi: 10.1029/95JD01837
  • Goldan, PD, WC Kuster, FC Fehsenfeld and SA Montzka (1995), Hydrocarbon measurements in the southeastern United States: The Rural Oxidants in the Southern Environment (ROSE) program 1990. J. Geophys. Res.-Atmos. Version: 1 100 (D12) 25945-25963, issn: 2169-897X, ids: TN051, doi: 10.1029/95JD02607
  • LOBERT, JM, JH BUTLER, SA MONTZKA, LS GELLER, RC MYERS and JW ELKINS (1995), A NET SINK FOR ATMOSPHERIC CH3BR IN THE EAST PACIFIC-OCEAN. Science Version: 1 267 (5200) 1002-1005, issn: 0036-8075, ids: QG990, doi: 10.1126/science.267.5200.1002, PubMed ID: 17811440
  • GOLDAN, PD, WC KUSTER, FC FEHSENFELD and SA MONTZKA (1993), THE OBSERVATION OF A C5 ALCOHOL EMISSION IN A NORTH-AMERICAN PINE FOREST. Geophys. Res. Lett. Version: 1 20 (11) 1039-1042, issn: 0094-8276, ids: LJ516, doi: 10.1029/93GL00247
  • MONTZKA, SA, RC MYERS, JH BUTLER, JW ELKINS and SO CUMMINGS (1993), GLOBAL TROPOSPHERIC DISTRIBUTION AND CALIBRATION SCALE OF HCFC-22. Geophys. Res. Lett. Version: 1 20 (8) 703-706, issn: 0094-8276, ids: LA342, doi: 10.1029/93GL00753
  • BUTLER, JH, JW ELKINS, BD HALL, SO CUMMINGS and SA MONTZKA (1992), A DECREASE IN THE GROWTH-RATES OF ATMOSPHERIC HALON CONCENTRATIONS. Nature Version: 1 359 (6394) 403-405, issn: 0028-0836, ids: JQ624, doi: 10.1038/359403a0
  • TALUKDAR, RK, A MELLOUKI, AM SCHMOLTNER, T WATSON, S MONTZKA and AR RAVISHANKARA (1992), KINETICS OF THE OH REACTION WITH METHYL CHLOROFORM AND ITS ATMOSPHERIC IMPLICATIONS. Science Version: 1 257 (5067) 227-230, issn: 0036-8075, ids: JC585, doi: 10.1126/science.257.5067.227, PubMed ID: 17794755
  • MONTZKA, SA, BM HYBERTSON, RM BARKLEY and RE SIEVERS (1991), LOW-TEMPERATURE OXIDATION OF YBA2CU3O6.0 WITH NITROGEN-DIOXIDE. J. Mater. Res. Version: 1 6 (5) 891-894, issn: 0884-2914, ids: FK039, doi: 10.1557/JMR.1991.0891
  • MONTZKA, SA, RM BARKLEY and RE SIEVERS (1989), CATALYZED REDOX REACTIONS OCCURRING IN A CHEMI-LUMINESCENCE DETECTOR USED FOR ENVIRONMENTAL-ANALYSIS. Version: 1 SOUTH AFRICAN JOURNAL OF CHEMISTRY 42 (2) 81-86, issn: 0379-4350, ids: AF022
  • MCNAMARA, EA, SA MONTZKA, RM BARKLEY and RE SIEVERS (1988), SUPERCONDUCTOR METAL-OXIDE CATALYST IN A CHEMI-LUMINESCENCE CHROMATOGRAPHY DETECTOR. Version: 1 JOURNAL OF CHROMATOGRAPHY 452 75-83, issn: 0021-9673, ids: Q9806, doi: 10.1016/S0021-9673(01)81438-2
  • POURREZA, N, SA MONTZKA, RM BARKLEY, RE SIEVERS and RS HUTTE (1987), CHEMISTRY OCCURRING IN REDOX CHEMILUMINESCENCE DETECTORS FOR CHROMATOGRAPHY. Version: 1 JOURNAL OF CHROMATOGRAPHY 399 165-172, issn: 0021-9673, ids: J7364

Honors and Awards

  • 2015 Excellence in Refereeing Citation by GRL
  • 2015 Nominated into the Montreal Protocol’s Who’s Who
  • 2014 Colorado Governor's Award for High-Impact Research, Team Member
  • 2012 Excellence in Refereeing Citation by JGR-A
  • 2008 U.S. Department of Commerce Silver Medal
  • 2007 Excellence in Refereeing Citation by GRL
  • 2008 NOAA Administrator Award
  • 2007 U.S. EPA Stratospheric Ozone Protection Award
  • 2000 NOAA Research Employee of the Year
  • 1997 U.S. Department of Commerce Silver Medal
  • 1996-2009 Awarded NOAA Outstanding Scientific Paper of the Year Award (nine times).
  • 1994, 1995, 2003 NASA Group Achievement Awards for separate field missions.
  • 1992, 1993, 1997 U.S. Department of Commerce, NOAA Certificate of Recognition.
  • 1989, 1990 National Research Council Post-Doctorate Fellowships
  • 1983, 1984 Colorado Doctoral Fellowships
  • 1982 Phi Beta Kappa