Owen Cooper

With the goal of conducting scientific research that is highly relevant to public health issues and policy development, Owen Cooper's research interests pertain to: regional and intercontinental transport of atmospheric trace gases and particulate matter; trends in U.S. and global air quality; the global tropospheric ozone budget and trends; stratosphere-troposphere exchange processes.

Dr. Cooper serves as co-Chair of the Tropospheric Ozone Assessment Report (TOAR), an activity of the International Global Atmospheric Chemistry project (IGAC):

Elementa: Tropospheric Ozone Assessment Report (TOAR) collection

View Publications

Wang H; Lu X; Jacob DJ; Cooper OR; Chang K-L; Li K; Gao M; Liu Y; Sheng B; Wu K. (Oct 2022). Global tropospheric ozone trends, attributions, and radiative impacts in 1995�2017: an integrated analysis using aircraft (IAGOS) observations, ozonesonde, and multi-decadal chemical model simulations. Atmospheric Chemistry and Physics , 22(20), 13753-13782. 10.5194/acp-22-13753-2022
Malashock DA; DeLang MN; Becker JS; Serre ML; West JJ; Chang K-L; Cooper OR; Anenberg SC. (May 2022). Estimates of ozone concentrations and attributable mortality in urban, peri-urban and rural areas worldwide in 2019. Environmental Research Letters , 17(5), 054023-054023. 10.1088/1748-9326/ac66f3
Chang K; Cooper OR; Gaudel A; Allaart M; Ancellet G; Clark H; Godin?Beekmann S; Leblanc T; Van Malderen R; N�d�lec P. (Apr 2022). Impact of the COVID?19 Economic Downturn on Tropospheric Ozone Trends: An Uncertainty Weighted Data Synthesis for Quantifying Regional Anomalies Above Western North America and Europe. , 3(2). 10.1029/2021av000542
Dunn RJH; Aldred F; Gobron N; Miller JB; Willett KM; Ades M; Adler R; Richard; Allan P; Allan R. (Aug 2021). GLOBAL CLIMATE. Bulletin of the American Meteorological Society , 102(8), S11-S141. 10.1175/BAMS-D-21-0098.1
DeLang MN; Becker JS; Chang K-L; Serre ML; Cooper OR; Schultz MG; Schroeder S; Lu X; Zhang L; Deushi M. (Apr 2021). Mapping Yearly Fine Resolution Global Surface Ozone through the Bayesian Maximum Entropy Data Fusion of Observations and Model Output for 1990-2017. Environmental Science and Technology (Washington) , 55(8), 4389-4398. 10.1021/acs.est.0c07742
Steinbrecht W; Kubistin D; Plass-Duelmer C; Davies J; Tarasick DW; von der Gathen P; Deckelmann H; Jepsen N; Kivi R; Lyall N. (Mar 2021). COVID-19 Crisis Reduces Free Tropospheric Ozone Across the Northern Hemisphere. Geophysical Research Letters , 48(5). 10.1029/2020GL091987
Qu Z; Henze DK; Cooper OR; Neu JL. (Nov 2020). Impacts of global NOx inversions on NO2 and ozone simulations. Atmospheric Chemistry and Physics , 20(21), 13109-13130. 10.5194/acp-20-13109-2020
Murray CJL; Aravkin AY; Zheng P; Abbafati C; Abbas KM; Abbasi-Kangevari M; Abd-Allah F; Abdelalim A; Abdollahi M; Abdollahpour I. (Oct 2020). Global burden of 87 risk factors in 204 countries and territories, 1990-2019: a systematic analysis for the Global Burden of Disease Study 2019. The Lancet , 396(10258), 1223-1249. 10.1016/S0140-6736(20)30752-2
Chang K-L; Cooper OR; Gaudel A; Petropavlovskikh I; Thouret V. (Aug 2020). Statistical regularization for trend detection: an integrated approach for detecting long-term trends from sparse tropospheric ozone profiles. Atmospheric Chemistry and Physics , 20(16), 9915-9938. 10.5194/acp-20-9915-2020
Ades M; Adler R; Allan R; Allan RP; Anderson J; Arguez A; Arosio C; Augustine JA; Azorin-Molina C; Barichivich J. (Aug 2020). GLOBAL CLIMATE. Bulletin of the American Meteorological Society , 101(8), S17-S127.
(Aug 2020). State of the Climate in 2019. Bulletin of the American Meteorological Society , 101(8), S1-S429. 10.1175/2020bamsstateoftheclimate.1
Gaudel A; Cooper OR; Chang K-L; Bourgeois I; Ziemke JR; Strode SA; Oman LD; Sellitto P; Nedelec P; Blot R. (Aug 2020). Aircraft observations since the 1990s reveal increases of tropospheric ozone at multiple locations across the Northern Hemisphere. Science Advances , 6(34). 10.1126/sciadv.aba8272
Xue L; Ding A; Cooper O; Huang X; Wang W; Zhou D; Wu Z; McClure-Begley A; Petropavlovskikh I; Andreae MO. (Jun 2020). ENSO and Southeast Asian biomass burning modulate subtropical trans-Pacific ozone transport. National Science Review. 10.1093/nsr/nwaa132
Cooper OR; Schultz MG; Schroeder S; Chang K-L; Gaudel A; Benitez GC; Cuevas E; Froehlich M; Galbally IE; Molloy S. (Jun 2020). Multi-decadal surface ozone trends at globally distributed remote locations. Elementa: Science of the Anthropocene , 8. 10.1525/elementa.420
Archibald AT; Neu JL; Elshorbany YF; Cooper OR; Young PJ; Akiyoshi H; Cox RA; Coyle M; Derwent RG; Deushi M. (Jan 2020). Tropospheric Ozone Assessment Report: A critical review of changes in the tropospheric ozone burden and budget from 1850 to 2100. Elementa: Science of the Anthropocene , 8(1). 10.1525/elementa.2020.034
Arndt DS; Blunden J; Dunn RJH; Stanitski DM; Gobron N; Willett KM; Sanchez-Lugo A; Berrisford P; Morice C; Nicolas JP. (Sep 2019). State of the Climate in 2018. Bulletin of the American Meteorological Society , 100(9), S1-U24. 10.1175/2019BAMSStateoftheClimate.1
Arndt, DS; Blunden, J; Dunn, RJH; Stanitski, DM; Gobron, N; Willett, KM; Sanchez-Lugo, A; Berrisford, P; Morice, C; Nicolas, JP; Carrea, L; Woolway, RI; Merchant, CJ; Dokulil, MT; de Eyto, E; DeGasperi, CL; Korhonen, J; Marszelewski, W; May, L; Paterson, AM; Rusak, JA; Schladow, SG; Schmid, M; Verburg, P; Watanabe, S; Weyhenmeyer, GA; King, AD; Donat, MG; Christy, JR; Po-Chedley, S; Mears, CR; Haimberger, L; Covey, C; Randel, W; Noetzli, J; Biskaborn, BK; Christiansen, HH; Isaksen, K; Schoeneich, P; Smith, S; Vieira, G; Zhao, L; Streletskiy, DA; Robinson, DA; Pelto, M; Berry, DI; Bosilovich, MG; Simmons, AJ; Mears, C; Ho, SP; Bock, O; Zhou, X; Nicolas, J; Vose, RS; Adler, R; Gu, G; Becker, A; Yin, X; Tye, MR; Blenkinsop, S; Bosilovich, MG; Durre, I; Ziese, M; Collow, ABM; Rustemeier, E; Foster, MJ; Di Girolamo, L; Frey, RA; Heidinger, AK; Sun-Mack, S; Phillips, C; Menzel, WP; Stengel, M; Zhao, G; Kim, H; Rodell, M; Li, B; Famiglietti, JS; Scanlon, T; van der Schalie, R; Preimesberger, W; Reimer, C; Hahn, S; G. (Sep 2019). INTRODUCTION. BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY , 100(9).
Cooper, OR. (Mar 2019). Detecting the fingerprints of observed climate change on surface ozone variability. SCIENCE BULLETIN , 64(6). 10.1016/j.scib.2019.02.013
Chang, KL; Cooper, OR; West, JJ; Serre, ML; Schultz, MG; Lin, MY; Marecal, V; Josse, B; Deushi, M; Sudo, K; Liu, JH; Keller, CA. (Mar 2019). A new method (M(3)Fusion v1) for combining observations and multiple model output for an improved estimate of the global surface ozone distribution. GEOSCIENTIFIC MODEL DEVELOPMENT , 12(3). 10.5194/gmd-12-955-2019
Tarasick, D. W., I. E. Galbally, O. R. Cooper, M. G. Schultz, G. Ancellet, T. Leblanc, T. J. Wallington, J. Ziemke, X. Liu, M. Steinbacher, J. Staehelin, C. Vigouroux, J. W. Hannigan, O. Garcia, G. Foret, P. Zanis, E. Weatherhead, I. Petropavlovskikh, H. Worden, M. Osman, J. Liu, K.-L. Chang, A. Gaudel, M. Lin, M. Granados-Munoz, A. M. Thompson, S. J. Oltmans, J. Cuesta, G. Dufour, V. Thouret, B. Hassler, T. Trickl and J. L. Neu. (Jan 2019). Tropospheric Ozone Assessment Report: Tropospheric ozone from 1877 to 2016, observed levels, trends and uncertainties. , 7(1). 10.1525/elementa.376
Stanaway, JD, A Afshin, E Gakidou, SS Lim, D Abate, KH Abate, C Abbafati, N Abbasi, H Abbastabar, F Abd-Allah, J Abdela, A Abdelalim, I Abdollahpour, RS Abdulkader, M Abebe, Z Abebe, SF Abera, OZ Abil, HN Abraha, AR Abrham, LJ Abu-Raddad, NME Abu-Rmeileh, MMK Accrombessi, D Acharya, P Acharya, AA Adamu, AA Adane, OM Adebayo, RA Adedoyin, V Adekanmbi, Z Ademi, O Adetokunboh, MG Adib, A Admasie, JC Adsuar, KA Afanvi, M Afarideh, G Agarwal, A Aggarwal, SA Aghayan, A Agrawal, S Agrawal, A Ahmadi, M Ahmadi, H Ahmadieh, MB Ahmed, AN Aichour, I Aichour, MTE Aichour, ME Akbari, T Akinyemiju, N Akseer, Z Al-Aly, A Al-Eyadhy, HM Al-Mekhlafi, F Alandab, K Alam, S Alam, T Alam, A Alashi, SM Alavian, KA Alene, K Ali, SM Ali, M Alijanzadeh, R Alizadeh-Navaei, SM Aljunid, A Alkerwi, F Alla, U Alsharif, K Altirkawi, N Alvis-Guzman, AT Amare, W Ammar, NH Anber, JA Anderson, CL . (Nov 2018). Global, regional, and national comparative risk assessment of 84 behavioural, environmental and occupational, and metabolic risks or clusters of risks for 195 countries and territories, 1990-2017: a systematic analysis for the Global Burden of Disease Study 2017. LANCET , 392(10159). 10.1016/S0140-6736(18)32225-6
Astitha, M, I Kioutsioukis, GA Fisseha, R Bianconi, J Bieser, JH Christensen, OR Cooper, S Galmarini, C Hogrefe, U Im, B Johnson, P Liu, U Nopmongcol, I Petropavlovskikh, E Solazzo, DW Tarasick and G Yarwood. (Oct 2018). Seasonal ozone vertical profiles over North America using the AQMEII3 group of air quality models: model inter-comparison and stratospheric intrusions. ATMOSPHERIC CHEMISTRY AND PHYSICS , 18(19). 10.5194/acp-18-13925-2018
Arndt DS; Blunden J; Hartfield G; Ackerman SA; Adler R; Alfaro EJ; Allan RP; Allan R; Alves LM; Amador JA. (Aug 2018). STATE OF THE CLIMATE IN 2017. Bulletin of the American Meteorological Society , 99(8), S1-S310.
Lu, X, JY Hong, L Zhang, OR Cooper, MG Schultz, XB Xu, T Wang, M Gao, YH Zhao and YH Zhang. (Aug 2018). Severe Surface Ozone Pollution in China: A Global Perspective. ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS , 5(8). 10.1021/acs.estlett.8b00366
Jaffe, DA, OR Cooper, AM Fiore, BH Henderson, GS Tonnesen, AG Russell, DK Henze, AO Langford, MY Lin and T Moore. (Jul 2018). Scientific assessment of background ozone over the US: Implications for air quality management. ELEMENTA-SCIENCE OF THE ANTHROPOCENE , 6. 10.1525/elementa.309
Mills, G, H Pleijel, CS Malley, B Sinha, OR Cooper, MG Schultz, HS Neufeld, D Simpson, K Sharps, ZZ Feng, G Gerosa, H Harmens, K Kobayashi, P Saxena, E Paoletti, V Sinha and XB Xu. (Jun 2018). Tropospheric Ozone Assessment Report: Present-day tropospheric ozone distribution and trends relevant to vegetation. ELEMENTA-SCIENCE OF THE ANTHROPOCENE , 6. 10.1525/elementa.302
Gaudel, A, OR Cooper, G Ancellet, B Barret, A Boynard, JP Burrows, C Clerbaux, PF Coheur, J Cuesta, E Cuevas, S Doniki, G Dufour, F Ebojie, G Foret, O Garcia, MJ Granados-Munoz, JW Hannigan, F Hase, B Hassler, G Huang, D Hurtmans, D Jaffe, N Jones, P Kalabokas, B Kerridge, S Kulawik, B Latter, T Leblanc, E Le Flochmoen, W Lin, J Liu, X Liu, E Mahieu, A McClure-Begley, JL Neu, M Osman, M Palm, H Petetin, I Petropavlovskikh, R Querel, N Rahpoe, A Rozanov, MG Schultz, J Schwab, R Siddans, D Smale, M Steinbacher, H Tanimoto, DW Tarasick, V Thouret, AM Thompson, T Trickl, E Weatherhead, C Wespes, HM Worden, C Vigouroux, X Xu, G Zeng and J Ziemke. (May 2018). Tropospheric Ozone Assessment Report: Present-day distribution and trends of tropospheric ozone relevant to climate and global atmospheric chemistry model evaluation. ELEMENTA-SCIENCE OF THE ANTHROPOCENE , 6. 10.1525/elementa.291
Fleming, ZL, RM Doherty, E von Schneidemesser, CS Malley, OR Cooper, JP Pinto, A Colette, XB Xu, D Simpson, MG Schultz, AS Lefohn, S Hamad, R Moolla, S Solberg and ZZ Feng. (Feb 2018). Tropospheric Ozone Assessment Report: Present-day ozone distribution and trends relevant to human health. ELEMENTA-SCIENCE OF THE ANTHROPOCENE , 6. 10.1525/elementa.273
Ziemke, J. R., and O. R. Cooper. (Jan 2018). [Global Climate] Tropospheric Ozone [in State of the Climate in 2017]. , 99(8). 10.1175/2018BAMSStateoftheClimate.1.
Schultz, MG, S Schroder, O Lyapina, OR Cooper, I Galbally, I Petropavlovskikh, E von Schneidemesser, H Tanimoto, Y Elshorbany, M Naja, RJ Seguel, U Dauert, P Eckhardt, S Feigenspan, M Fiebig, AG Hjellbrekke, YD Hong, PC Kjeld, H Koide, G Lear, D Tarasick, M Ueno, M Wallasch, D Baumgardner, MT Chuang, R Gillett, M Lee, S Molloy, R Moolla, T Wang, K Sharps, JA Adame, G Ancellet, F Apadula, P Artaxo, ME Barlasina, M Bogucka, P Bonasoni, L Chang, A Colomb, E Cuevas-Agullo, M Cupeiro, A Degorska, AJ Ding, M FrHlich, M Frolova, H Gadhavi, F Gheusi, S Gilge, MY Gonzalez, V Gros, SH Hamad, D Helmig, D Henriques, O Hermansen, R Holla, J Hueber, U Im, DA Jaffe, N Komala, D Kubistin, KS Lam, T Laurila, H Lee, I Levy, C Mazzoleni, LR Mazzoleni, A McClure-Begley, M Mohamad, M Murovec, M Navarro-Comas, F Nicodim, D Parrish, KA Read, N Reid, NRL Ries, P Saxena, JJ Schwab, . (Oct 2017). Tropospheric Ozone Assessment Report: Database and metrics data of global surface ozone observations. ELEMENTA-SCIENCE OF THE ANTHROPOCENE , 5. 10.1525/elementa.244
Chang, KL, I Petropavlovskikh, OR Cooper, MG Schultz and T Wang. (Sep 2017). Regional trend analysis of surface ozone observations from monitoring networks in eastern North America, Europe and East Asia. ELEMENTA-SCIENCE OF THE ANTHROPOCENE , 5. 10.1525/elementa.243
Arndt, DS, J Blunden, RJH Dunn, AP Aaron-Morrison, A Abdallah, SA Ackerman, R Adler, EJ Alfaro, RP Allan, R Allan, LA Alvarez, LM Alves, JA Amador, LM Andreassen, D Arce, A Arguez, DS Arndt, NM Arzhanova, J Augustine, E Awatif, C Azorin-Molina, J Baez, MU Bardin, J Barichivich, MO Baringer, S Barreira, S Baxter, HE Beck, A Becker, KM Bedka, MJ Behrenfeld, GD Bell, M Belmont, A Benedetti, GH Bernhard, P Berrisford, DI Berry, ML Bettolli, US Bhatt, M Bidegain, B Biskaborn, P Bissolli, J Bjerke, ES Blake, J Blunden, MG Bosilovich, O Boucher, D Boudet, JE Box, T Boyer, GO Braathen, J Brimelow, DH Bromwich, R Brown, S Buehler, ON Bulygina, D Burgess, B Calderon, SJ Camargo, JD Campbell, J Cappelen, P Caroff, L Carrea, BR Carter, DP Chambers, E Chandler, MD Cheng, HH Christiansen, JR Christy, D Chung, ES Chung, KR Clem, CAS Coelho, M Coldewey-Egbers, S Colwell, OR Coo. (Aug 2017). State of the Climate in 2016. BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY , 98(8). 10.1175/2017BAMSStateoftheClimate.1
Kille, N, S Baidar, P Handley, I Ortega, R Sinreich, OR Cooper, F Hase, JW Hannigan, G Pfister and R Volkamer. (Feb 2017). The CU mobile Solar Occultation Flux instrument: structure functions and emission rates of NH3, NO2 and C2H6. ATMOSPHERIC MEASUREMENT TECHNIQUES , 10(1). 10.5194/amt-10-373-2017
Ziemke, J. R and O. R. Cooper. (Jan 2017). Tropospheric Ozone [in State of the Climate in 2016]. , 98(8). 10.1175/2017BAMSStateoftheClimate.2
Zhang, YQ, OR Cooper, A Gaudel, AM Thompson, P Nedelec, SY Ogino and JJ West. (Dec 2016). Tropospheric ozone change from 1980 to 2010 dominated by equatorward redistribution of emissions. NATURE GEOSCIENCE , 9(12). 10.1038/NGEO2827
Petetin, H, V Thouret, G Athier, R Blot, D Boulanger, JM Cousin, A Gaudel, P Nedelec and O Cooper. (Sep 2016). Diurnal cycle of ozone throughout the troposphere over Frankfurt as measured by MOZAIC-IAGOS commercial aircraft. ELEMENTA-SCIENCE OF THE ANTHROPOCENE , 4. 10.12952/journal.elementa.000129
Sun, L, LK Xue, T Wang, J Gao, AJ Ding, OR Cooper, MY Lin, PJ Xu, Z Wang, XF Wang, L Wen, YH Zhu, TS Chen, LX Yang, Y Wang, JM Chen and WX Wang. (Aug 2016). Significant increase of summertime ozone at Mount Tai in Central Eastern China. ATMOSPHERIC CHEMISTRY AND PHYSICS , 16(16). 10.5194/acp-16-10637-2016
Arndt, DS, J Blunden, KM Willett, AP Aaron-Morrison, SA Ackerman, NG Adams, RF Adler, A Albanil, EJ Alfaro, R Allan, LM Alves, JA Amador, LM Andreassen, A Arendt, J Arevalo, NM Arzhanova, MM Aschan, C Azorin-Molina, V Banzon, MU Bardin, J Barichivich, MO Baringer, S Barreira, S Baxter, J Bazo, A Becker, KM Bedka, MJ Behrenfeld, GD Bell, M Belmont, A Benedetti, G Bernhard, P Berrisford, DI Berry, ML Bettolli, US Bhatt, M Bidegain, BD Bill, S Billheimer, P Bissolli, ES Blake, J Blunden, MG Bosilovich, O Boucher, D Boudet, JE Box, T Boyer, GO Braathen, DH Bromwich, R Brown, ON Bulygina, D Burgess, B Calderon, SJ Camargo, JD Campbell, J Cappelen, G Carrasco, BR Carter, DP Chambers, E Chandler, HH Christiansen, JR Christy, D Chung, ES Chung, K Cinque, KR Clem, CAS Coelho, JG Cogley, M Coldewey-Egbers, S Colwell, OR Cooper, L Copland, CE Cosca, JN Cross, MJ Crotwell, J. (Aug 2016). State of the Climate in 2015. BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY , 97(8).
Dlugokencky, E.J., B.D. Hall, M.J. Crotwell, S.A. Montzka, G. Dutton, J. Muhle and J.W. Elkins. (Aug 2016). Long-lived Greenhouse Gases [in 'State of the Climate in 2015']. , 97(8). 10.1175/2016bamsstateoftheclimate.1
Lin, MY, LW Horowitz, OR Cooper, D Tarasick, S Conley, LT Iraci, B Johnson, T Leblanc, I Petropavlovskikh and EL Yates. (Oct 2015). Revisiting the evidence of increasing springtime ozone mixing ratios in the free troposphere over western North America. GEOPHYSICAL RESEARCH LETTERS , 42(20). 10.1002/2015GL065311
Strode, SA, JM Rodriguez, JA Logan, OR Cooper, JC Witte, LN Lamsal, M Damon, B Van Aartsen, SD Steenrod and SE Strahan. (Sep 2015). Trends and variability in surface ozone over the United States. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 120(17). 10.1002/2014JD022784
Arndt, DS, J Blunden, KW Willett, AP Aaron-Morrison, SA Ackerman, JI Adamu, A Albanil, EJ Alfaro, R Allan, RB Alley, L Alvarez, LM Alves, JA Amador, LM Andreassen, J Antonov, S Applequist, A Arendt, J Arevalo, A Arguez, DS Arndt, V Banzon, J Barichivich, MO Baringer, S Barreira, S Baxter, J Bazo, A Becker, MJ Behrenfeld, GD Bell, A Benedetti, G Bernhard, P Berrisford, DI Berry, ML Bettolli, US Bhatt, M Bidegain, N Bindoff, P Bissolli, ES Blake, RC Blenman, J Blunden, NA Bond, M Bosilovich, JE Box, D Boudet, T Boyer, GO Braathen, DH Bromwich, LC Brown, R Brown, ON Bulygina, D Burgess, B Calderon, SJ Camargo, JD Campbell, J Cappelen, G Carrasco, B Carter, DP Chambers, E Chandler, F Chevallier, HH Christiansen, JR Christy, D Chung, P Ciais, KR Clem, CAS Coelho, JG Cogley, M Coldewey-Egbers, S Colwell, OR Cooper, L Copland, MF Cronin, J Crouch, SA Cunningham, SM Dav. (Jul 2015). STATE OF THE CLIMATE IN 2014. BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY , 96(7). 10.1175/2015BAMSStateoftheClimate.1
Cooper OR; Langford AO; Parrish DD; Fahey DW. (Jun 2015). Challenges of a lowered US ozone standard. Science , 348(6239), 1096-1097. 10.1126/science.aaa5748
Lefohn AS; Cooper OR. (May 2015). Introduction to the special issue on observations and source attribution of ozone in rural regions of the western United States Preface. Atmospheric Environment , 109, 279-281. 10.1016/j.atmosenv.2015.03.030
Langford, AO, CJ Senff, RJ Alvarez, J Brioude, OR Cooper, JS Holloway, MY Lin, RD Marchbanks, RB Pierce, SP Sandberg, AM Weickmann and EJ Williams. (May 2015). An overview of the 2013 Las Vegas Ozone Study (LVOS): Impact of stratospheric intrusions and long-range transport on surface air quality. ATMOSPHERIC ENVIRONMENT , 109. 10.1016/j.atmosenv.2014.08.040
Jordan, CE, AAP Pszenny, WC Keene, OR Cooper, B Deegan, J Maben, M Routhier, R Sander and AH Young. (Jan 2015). Origins of aerosol chlorine during winter over north central Colorado, USA. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 120(2). 10.1002/2014JD022294
Monks, PS, AT Archibald, A Colette, O Cooper, M Coyle, R Derwent, D Fowler, C Granier, KS Law, GE Mills, DS Stevenson, O Tarasova, V Thouret, E von Schneidemesser, R Sommariva, O Wild and ML Williams. (Jan 2015). Tropospheric ozone and its precursors from the urban to the global scale from air quality to short-lived climate forcer. ATMOSPHERIC CHEMISTRY AND PHYSICS , 15(15). 10.5194/acp-15-8889-2015
Lal, S, S Venkataramani, N Chandra, OR Cooper, J Brioude and M Naja. (Aug 2014). Transport effects on the vertical distribution of tropospheric ozone over western India. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 119(16). 10.1002/2014JD021854
Cooper, O. R., D. D. Parrish, J. Ziemke, N. V. Balashov, M. Cupeiro, I. E. Galbally, S. Gilge, L. Horowitz, N. R. Jensen, J. -F. Lamarque, V. Naik, S. J. Oltmans, J. Schwab, D. T. Shindell, A. M. Thompson, V. Thouret, Y. Wang and R. M. Zbinden. (Jul 2014). Global distribution and trends of tropospheric ozone: An observation-based review. Elementa-Science of the Anthropocene , 2. 10.12952/journal.elementa.000029
Blunden, J, DS Arndt, AP Aaron-Morrison, SA Ackerman, A Albanil, EJ Alfaro, R Allan, LM Alves, JA Amador, P Ambenje, L Anderson, LM Andreassen, J Antonov, A Arendt, J Arevalo, DS Arndt, I Ashik, Z Atheru, J Augustine, A Baklanov, V Banzon, MO Baringer, S Barreira, D Barriopedro, S Baxter, J Bazo, A Becker, MJ Behrenfeld, GD Bell, A Benedetti, G Bernhard, P Berrisford, DI Berry, US Bhatt, M Bidegain, N Bindoff, P Bissolli, ES Blake, RC Blenman, J Blunden, M Bosilovich, JE Box, T Boyer, GO Braathen, DH Bromwich, G Brown, LC Brown, R Brown, L Bruhwiler, ON Bulygina, D Burgess, M Butler, B Calderon, SJ Camargo, GG Campbell, JD Campbell, J Cappelen, G Carrasco, DP Chambers, L Changa, PR Chappell, HH Christiansen, JR Christy, D Chung, P Ciais, KR Clem, CAS Coelho, M Coldewey-Egbers, S Colwell, OR Cooper, KA Coulibaly, C Cox, JN Cross, J Crouch, SA Cunningham, A Dahlba. (Jul 2014). STATE OF THE CLIMATE IN 2013. BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY , 95(7). 10.1175/2014BAMSStateoftheClimate.1
Parrish, DD, JF Lamarque, V Naik, L Horowitz, DT Shindell, J Staehelin, R Derwent, OR Cooper, H Tanimoto, A Volz-Thomas, S Gilge, HE Scheel, M Steinbacher and M Frohlich. (May 2014). Long-term changes in lower tropospheric baseline ozone concentrations: Comparing chemistry-climate models and observations at northern midlatitudes. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 119(9). 10.1002/2013JD021435
Lee, HJ, SW Kim, J Brioude, OR Cooper, GJ Frost, CH Kim, RJ Park, M Trainer and JH Woo. (Mar 2014). Transport of NOx in East Asia identified by satellite and in situ measurements and Lagrangian particle dispersion model simulations. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 119(5). 10.1002/2013JD021185
Moody, JL, WC Keene, OR Cooper, KJ Voss, R Aryal, S Eckhardt, B Holben, JR Maben, MA Izaguirre and JN Galloway. (Jan 2014). Flow climatology for physicochemical properties of dichotomous aerosol over the western North Atlantic Ocean at Bermuda. ATMOSPHERIC CHEMISTRY AND PHYSICS , 14(2). 10.5194/acp-14-691-2014
Keene, WC, JL Moody, JN Galloway, JM Prospero, OR Cooper, S Eckhardt and JR Maben. (Jan 2014). Long-term trends in aerosol and precipitation composition over the western North Atlantic Ocean at Bermuda. ATMOSPHERIC CHEMISTRY AND PHYSICS , 14(15). 10.5194/acp-14-8119-2014
Ozturk, F, R Bahreini, NL Wagner, WP Dube, CJ Young, SS Brown, CA Brock, IM Ulbrich, JL Jimenez, OR Cooper and AM Middlebrook. (Dec 2013). Vertically resolved chemical characteristics and sources of submicron aerosols measured on a Tall Tower in a suburban area near Denver, Colorado in winter. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 118(24). 10.1002/2013JD019923
Huang, M, KW Bowman, GR Carmichael, RB Pierce, HM Worden, M Luo, OR Cooper, IB Pollack, TB Ryerson and SS Brown. (Nov 2013). Impact of Southern California anthropogenic emissions on ozone pollution in the mountain states: Model analysis and observational evidence from space. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 118(22). 10.1002/2013JD020205
Blunden J; Arndt DS; Achberger C; Ackerman SA; Albanil A; Alexander P; Alfaro EJ; Allan R; Alves LM; Amador JA. (Aug 2013). State of the Climate in 2012. Bulletin of the American Meteorological Society , 94(8), S1-S240. 10.1175/2013BAMSStateoftheClimate.1
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. (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). 10.1002/jgrd.50331
Parrish, DD, KS Law, J Staehelin, R Derwent, OR Cooper, H Tanimoto, A Volz-Thomas, S Gilge, HE Scheel, M Steinbacher and E Chan. (Apr 2013). Lower tropospheric ozone at northern midlatitudes: Changing seasonal cycle. GEOPHYSICAL RESEARCH LETTERS , 40(8). 10.1002/grl.50303
Cooper, OR, RS Gao, D Tarasick, T Leblanc and C Sweeney. (Nov 2012). Long-term ozone trends at rural ozone monitoring sites across the United States, 1990-2010. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 117. 10.1029/2012JD018261
Lin, MY, AM Fiore, OR Cooper, LW Horowitz, AO Langford, H Levy, BJ Johnson, V Naik, SJ Oltmans and CJ Senff. (Oct 2012). Springtime high surface ozone events over the western United States: Quantifying the role of stratospheric intrusions. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 117. 10.1029/2012JD018151
Lin, MY, AM Fiore, LW Horowitz, OR Cooper, V Naik, J Holloway, BJ Johnson, AM Middlebrook, SJ Oltmans, IB Pollack, TB Ryerson, JX Warner, C Wiedinmyer, J Wilson and B Wyman. (Feb 2012). Transport of Asian ozone pollution into surface air over the western United States in spring. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 117. 10.1029/2011JD016961
Langford, AO, J Brioude, OR Cooper, CJ Senff, RJ Alvarez, RM Hardesty, BJ Johnson and SJ Oltmans. (Feb 2012). Stratospheric influence on surface ozone in the Los Angeles area during late spring and early summer of 2010. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 117. 10.1029/2011JD016766
Parrish, DD, KS Law, J Staehelin, R Derwent, OR Cooper, H Tanimoto, A Volz-Thomas, S Gilge, HE Scheel, M Steinbacher and E Chan. (Jan 2012). Long-term changes in lower tropospheric baseline ozone concentrations at northern mid-latitudes. ATMOSPHERIC CHEMISTRY AND PHYSICS , 12(23). 10.5194/acp-12-11485-2012
Cooper, OR, SJ Oltmans, BJ Johnson, J Brioude, W Angevine, M Trainer, DD Parrish, TR Ryerson, I Pollack, PD Cullis, MA Ives, DW Tarasick, J Al-Saadi and I Stajner. (Nov 2011). Measurement of western US baseline ozone from the surface to the tropopause and assessment of downwind impact regions. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 116. 10.1029/2011JD016095
Huang, XF, RS Gao, JP Schwarz, LY He, DW Fahey, LA Watts, A McComiskey, OR Cooper, TL Sun, LW Zeng, M Hu and YH Zhang. (Jun 2011). Black carbon measurements in the Pearl River Delta region of China. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 116. 10.1029/2010JD014933
Brock, CA, J Cozic, R Bahreini, KD Froyd, AM Middlebrook, A McComiskey, J Brioude, OR Cooper, A Stohl, KC Aikin, JA de Gouw, DW Fahey, RA Ferrare, RS Gao, W Gore, JS Holloway, G Hubler, A Jefferson, DA Lack, S Lance, RH Moore, DM Murphy, A Nenes, PC Novelli, JB Nowak, JA Ogren, J Peischl, RB Pierce, P Pilewskie, PK Quinn, TB Ryerson, KS Schmidt, JP Schwarz, H Sodemann, JR Spackman, H Stark, DS Thomson, T Thornberry, P Veres, LA Watts, C Warneke and AG Wollny. (Jan 2011). Characteristics, sources, and transport of aerosols measured in spring 2008 during the aerosol, radiation, and cloud processes affecting Arctic Climate (ARCPAC) Project. ATMOSPHERIC CHEMISTRY AND PHYSICS , 11(6). 10.5194/acp-11-2423-2011
Lee, SH, SW Kim, M Trainer, GJ Frost, SA McKeen, OR Cooper, F Flocke, JS Holloway, JA Neuman, T Ryerson, CJ Senff, AL Swanson and AM Thompson. (Jan 2011). Modeling ozone plumes observed downwind of New York City over the North Atlantic Ocean during the ICARTT field campaign. ATMOSPHERIC CHEMISTRY AND PHYSICS , 11(14). 10.5194/acp-11-7375-2011
Lance, S, MD Shupe, G Feingold, CA Brock, J Cozic, JS Holloway, RH Moore, A Nenes, JP Schwarz, JR Spackman, KD Froyd, DM Murphy, J Brioude, OR Cooper, A Stohl and JF Burkhart. (Jan 2011). Cloud condensation nuclei as a modulator of ice processes in Arctic mixed-phase clouds. ATMOSPHERIC CHEMISTRY AND PHYSICS , 11(15). 10.5194/acp-11-8003-2011
Roiger, A, H Schlager, A Schafler, H Huntrieser, M Scheibe, H Aufmhoff, OR Cooper, H Sodemann, A Stohl, J Burkhart, M Lazzara, C Schiller, KS Law and F Arnold. (Jan 2011). In-situ observation of Asian pollution transported into the Arctic lowermost stratosphere. ATMOSPHERIC CHEMISTRY AND PHYSICS , 11(21). 10.5194/acp-11-10975-2011
Tarasick, DW, JJ Jin, VE Fioletov, G Liu, AM Thompson, SJ Oltmans, J Liu, CE Sioris, X Liu, OR Cooper, T Dann and V Thouret. (Oct 2010). High-resolution tropospheric ozone fields for INTEX and ARCTAS from IONS ozonesondes. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 115. 10.1029/2009JD012918
Brioude, J, RW Portmann, JS Daniel, OR Cooper, GJ Frost, KH Rosenlof, C Granier, AR Ravishankara, SA Montzka and A Stohl. (Oct 2010). Variations in ozone depletion potentials of very short-lived substances with season and emission region. GEOPHYSICAL RESEARCH LETTERS , 37. 10.1029/2010GL044856
Cooper, OR, DD Parrish, A Stohl, M Trainer, P Nedelec, V Thouret, JP Cammas, SJ Oltmans, BJ Johnson, D Tarasick, T Leblanc, IS McDermid, D Jaffe, R Gao, J Stith, T Ryerson, K Aikin, T Campos, A Weinheimer and MA Avery. (Jan 2010). Increasing springtime ozone mixing ratios in the free troposphere over western North America. NATURE , 463(7279). 10.1038/nature08708
Lamarque, JF, TC Bond, V Eyring, C Granier, A Heil, Z Klimont, D Lee, C Liousse, A Mieville, B Owen, MG Schultz, D Shindell, SJ Smith, E Stehfest, J Van Aardenne, OR Cooper, M Kainuma, N Mahowald, JR McConnell, V Naik, K Riahi and DP van Vuuren. (Jan 2010). Historical (1850-2000) gridded anthropogenic and biomass burning emissions of reactive gases and aerosols: methodology and application. ATMOSPHERIC CHEMISTRY AND PHYSICS , 10(15). 10.5194/acp-10-7017-2010
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. (Jan 2010). Ozone variability and halogen oxidation within the Arctic and sub-Arctic springtime boundary layer. ATMOSPHERIC CHEMISTRY AND PHYSICS , 10(21). 10.5194/acp-10-10223-2010
Monks, PS, C Granier, S Fuzzi, A Stohl, ML Williams, H Akimoto, M Amann, A Baklanov, U Baltensperger, I Bey, N Blake, RS Blake, K Carslaw, OR Cooper, F Dentener, D Fowler, E Fragkou, GJ Frost, S Generoso, P Ginoux, V Grewe, A Guenther, HC Hansson, S Henne, J Hjorth, A Hofzumahaus, H Huntrieser, ISA Isaksen, ME Jenkin, J Kaiser, M Kanakidou, Z Klimont, M Kulmala, P Laj, MG Lawrence, JD Lee, C Liousse, M Maione, G McFiggans, A Metzger, A Mieville, N Moussiopoulos, JJ Orlando, CD ODowd, PI Palmer, DD Parrish, A Petzold, U Platt, U Poschl, ASH Prevot, CE Reeves, S Reimann, Y Rudich, K Sellegri, R Steinbrecher, D Simpson, H ten Brink, J Theloke, GR van der Werf, R Vautard, V Vestreng, C Vlachokostas and R von Glasow. (Oct 2009). Atmospheric composition change - global and regional air quality. ATMOSPHERIC ENVIRONMENT , 43(33). 10.1016/j.atmosenv.2009.08.021
Cooper, OR, S Eckhardt, JH Crawford, CC Brown, RC Cohen, TH Bertram, P Wooldridge, A Perring, WH Brune, X Ren, D Brunner and SL Baughcum. (Jan 2009). Summertime buildup and decay of lightning NOx and aged thunderstorm outflow above North America. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 114. 10.1029/2008JD010293
Brioude, J, OR Cooper, G Feingold, M Trainer, SR Freitas, D Kowal, JK Ayers, E Prins, P Minnis, SA McKeen, GJ Frost and EY Hsie. (Jan 2009). Effect of biomass burning on marine stratocumulus clouds off the California coast. ATMOSPHERIC CHEMISTRY AND PHYSICS , 9(22). 10.5194/acp-9-8841-2009
Brioude, J, JP Cammas, OR Cooper and P Nedelec. (Jul 2008). Characterization of the composition, structure, and seasonal variation of the mixing layer above the extratropical tropopause as revealed by MOZAIC measurements. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 113. 10.1029/2007JD009184
Brock, CA, AP Sullivan, RE Peltier, RJ Weber, A Wollny, JA Gouw, AM Middlebrook, EL Atlas, A Stohl, MK Trainer, OR Cooper, FC Fehsenfeld, GJ Frost, JS Holloway, G Hubler, JA Neuman, TB Ryerson, C Warneke and JC Wilson. (Apr 2008). Sources of particulate matter in the northeastern United States in summer: 2. Evolution of chemical and microphysical properties. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 113(D8). 10.1029/2007JD009241
Cooper, OR, M Trainer, AM Thompson, SJ Oltmans, DW Tarasick, JC Witte, A Stohl, S Eckhardt, J Lelieveld, MJ Newchurch, BJ Johnson, RW Portmann, L Kalnajs, MK Dubey, T Leblanc, IS McDermid, G Forbes, D Wolfe, T Carey-Smith, GA Morris, B Lefer, B Rappengluck, E Joseph, F Schmidlin, J Meagher, FC Fehsenfeld, TJ Keating, RA Van Curen and K Minschwaner. (Dec 2007). Evidence for a recurring eastern North America upper tropospheric ozone maximum during summer. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 112(D23). 10.1029/2007JD008710
Tarasick, DW, MD Moran, AM Thompson, T Carey-Smith, Y Rochon, VS Bouchet, W Gong, PA Makar, C Stroud, S Menard, LP Crevier, S Cousineau, JA Pudykiewicz, A Kallaur, R Moffet, R Menard, A Robichaud, OR Cooper, SJ Oltmans, JC Witte, G Forbes, BJ Johnson, J Merrill, JL Moody, G Morris, MJ Newchurch, FJ Schmidlin and E Joseph. (Jun 2007). Comparison of Canadian air quality forecast models with tropospheric ozone profile measurements above midlatitude North America during the IONS/ICARTT campaign: Evidence for stratospheric input. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 112(D12). 10.1029/2006JD007782
Thompson, AM, JB Stone, JC Witte, SK Miller, RB Pierce, RB Chatfield, SJ Oltmans, OR Cooper, AL Loucks, BF Taubman, BJ Johnson, E Joseph, TL Kucsera, JT Merrill, GA Morris, S Hersey, G Forbes, MJ Newchurch, FJ Schmidlin, DW Tarasick, V Thouret and JP Cammas. (May 2007). Intercontinental Chemical Transport Experiment Ozonesonde Network Study (IONS) 2004: 1. Summertime upper troposphere/lower stratosphere ozone over northeastern North America. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 112(D12). 10.1029/2006JD007441
Pittman, JV, EM Weinstock, RJ Oglesby, DS Sayres, JB Smith, JG Anderson, OR Cooper, SC Wofsy, I Xueref, C Gerbig, BC Daube, EC Richard, BA Ridley, AJ Weinheimer, M Loewenstein, HJ Jost, JP Lopez, MJ Mahoney, TL Thompson, WW Hargrove and FM Hoffman. (Apr 2007). Transport in the subtropical lowermost stratosphere during the Cirrus Regional Study of Tropical Anvils and Cirrus Layers-Florida Area Cirrus Experiment. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 112(D8). 10.1029/2006JD007851
Brioude, J, OR Cooper, M Trainer, TB Ryerson, JS Holloway, T Baynard, J Peischl, C Warneke, JA Neuman, J De Gouw, A Stohl, S Eckhardt, GJ Frost, SA McKeen, EY Hsie, FC Fehsenfeld and P Nedelec. (Jan 2007). Mixing between a stratospheric intrusion and a biomass burning plume. ATMOSPHERIC CHEMISTRY AND PHYSICS , 7(16). 10.5194/acp-7-4229-2007
Cooper, OR, A Stohl, M Trainer, AM Thompson, JC Witte, SJ Oltmans, G Morris, KE Pickering, JH Crawford, G Chen, RC Cohen, TH Bertram, P Wooldridge, A Perring, WH Brune, J Merrill, JL Moody, D Tarasick, P Nedelec, G Forbes, MJ Newchurch, FJ Schmidlin, BJ Johnson, S Turquety, SL Baughcum, X Ren, FC Fehsenfeld, JF Meagher, N Spichtinger, CC Brown, SA McKeen, IS McDermid and T Leblanc. (Dec 2006). Large upper tropospheric ozone enhancements above midlatitude North America during summer: In situ evidence from the IONS and MOZAIC ozone measurement network. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 111(D24). 10.1029/2006JD007306
Warneke, C, JA de Gouw, A Stohl, OR Cooper, PD Goldan, WC Kuster, JS Holloway, EJ Williams, BM Lerner, SA McKeen, M Trainer, FC Fehsenfeld, EL Atlas, SG Donnelly, V Stroud, A Lueb and S Kato. (Aug 2006). Biomass burning and anthropogenic sources of CO over New England in the summer 2004. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 111(D23). 10.1029/2005JD006878
Owen, RC, OR Cooper, A Stohl and RE Honrath. (Aug 2006). An analysis of the mechanisms of North American pollutant transport to the central North Atlantic lower free troposphere. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 111(D23). 10.1029/2006JD007062
Brioude, J, JP Cammas and OR Cooper. (Jun 2006). Stratosphere-troposphere exchange in a summertime extratropical low: analysis. ATMOSPHERIC CHEMISTRY AND PHYSICS , 6. 10.5194/acp-6-2337-2006
de Gouw, JA, C Warneke, A Stohl, AG Wollny, CA Brock, OR Cooper, JS Holloway, M Trainer, FC Fehsenfeld, EL Atlas, SG Donnelly, V Stroud and A Lueb. (May 2006). Volatile organic compounds composition of merged and aged forest fire plumes from Alaska and western Canada. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 111(D10). 10.1029/2005JD006175
Beirle, S, N Spichtinger, A Stohl, KL Cummins, T Turner, D Boccippio, OR Cooper, M Wenig, M Grzegorski, U Platt and T Wagner. (Apr 2006). Estimating the NOx produced by lightning from GOME and NLDN data: a case study in the Gulf of Mexico. ATMOSPHERIC CHEMISTRY AND PHYSICS , 6. 10.5194/acp-6-1075-2006
Cooper, OR, A Stohl, G Hubler, EY Hsie, DD Parrish, AF Tuck, GN Kiladis, SJ Oltmans, BJ Johnson, M Shapiro, JL Moody and AS Lefohn. (Dec 2005). Direct transport of midlatitude stratospheric ozone into the lower troposphere and marine boundary layer of the tropical Pacific Ocean. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 110(D23). 10.1029/2005JD005783
Jones, GV, MA White, OR Cooper and K Storchmann. (Dec 2005). Climate change and global wine quality. CLIMATIC CHANGE , 73(3). 10.1007/s10584-005-4704-2
Koch, SE, BD Jamison, CG Lu, TL Smith, EI Tollerud, C Girz, N Wang, TP Lane, MA Shapiro, DD Parrish and OR Cooper. (Nov 2005). Turbulence and gravity waves within an upper-level front. JOURNAL OF THE ATMOSPHERIC SCIENCES , 62(11). 10.1175/JAS3574.1
Cooper, OR, A Stohl, S Eckhardt, DD Parrish, SJ Oltmans, BJ Johnson, P Nedelec, FJ Schmidlin, MJ Newchurch, Y Kondo and K Kita. (Mar 2005). A springtime comparison of tropospheric ozone and transport pathways on the east and west coasts of the United States. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 110(D5). 10.1029/2004JD005183
Huntrieser, H, J Heland, H Schlager, C Forster, A Stohl, H Aufmhoff, F Arnold, HE Scheel, M Campana, S Gilge, R Eixmann and O Cooper. (Jan 2005). Intercontinental air pollution transport from North America to Europe: Experimental evidence from airborne measurements and surface observations. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 110(D1). 10.1029/2004JD005045
Hudman, RC, DJ Jacob, OR Cooper, MJ Evans, CL Heald, RJ Park, F Fehsenfeld, F Flocke, J Holloway, G Hubler, K Kita, M Koike, Y Kondo, A Neuman, J Nowak, S Oltmans, D Parrish, JM Roberts and T Ryerson. (Dec 2004). Ozone production in transpacific Asian pollution plumes and implications for ozone air quality in California. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 109(D23). 10.1029/2004JD004974
Parrish, DD, Y Kondo, OR Cooper, CA Brock, DA Jaffe, M Trainer, T Ogawa, G Hubler and FC Fehsenfeld. (Nov 2004). Intercontinental Transport and Chemical Transformation 2002 (ITCT 2K2) and Pacific Exploration of Asian Continental Emission (PEACE) experiments: An overview of the 2002 winter and spring intensives. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 109(D23). 10.1029/2004JD004980
Nowak, JB, DD Parrish, JA Neuman, JS Holloway, OR Cooper, TB Ryerson, DK Nicks, F Flocke, JM Roberts, E Atlas, JA de Gouw, S Donnelly, E Dunlea, G Hubler, LG Huey, S Schauffler, DJ Tanner, C Warneke and FC Fehsenfeld. (Jul 2004). Gas-phase chemical characteristics of Asian emission plumes observed during ITCT 2K2 over the eastern North Pacific Ocean. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 109(D23). 10.1029/2003JD004488
Price, HU, DA Jaffe, OR Cooper and PV Doskey. (Jul 2004). Photochemistry, ozone production, and dilution during long-range transport episodes from Eurasia to the northwest United States. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 109(D23). 10.1029/2003JD004400
McCaffery, SJ, SA McKeen, EY Hsie, DD Parrish, OR Cooper, JS Holloway, G Hubler, FC Fehsenfeld and M Trainer. (Jul 2004). A case study of stratosphere-troposphere exchange during the 1996 North Atlantic Regional Experiment. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 109(D14). 10.1029/2003JD004007
de Gouw, JA, OR Cooper, C Warneke, PK Hudson, FC Fehsenfeld, JS Holloway, G Hubler, DK Nicks, JB Nowak, DD Parrish, TB Ryerson, EL Atlas, SG Donnelly, SM Schauffler, V Stroud, K Johnson, GR Carmichael and DG Streets. (Jul 2004). Chemical composition of air masses transported from Asia to the U. S. West Coast during ITCT 2K2: Fossil fuel combustion versus biomass-burning signatures. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 109(D23). 10.1029/2003JD004202
Stohl, A, OR Cooper, R Damoah, FC Fehsenfeld, C Forster, EY Hsie, G Hubler, DD Parrish and M Trainer. (Jul 2004). Forecasting for a Lagrangian aircraft campaign. ATMOSPHERIC CHEMISTRY AND PHYSICS , 4. 10.5194/acp-4-1113-2004
Brock, CA, PK Hudson, ER Lovejoy, A Sullivan, JB Nowak, LG Huey, OR Cooper, DJ Cziczo, J de Gouw, FC Fehsenfeld, JS Holloway, G Hubler, BG Lafleur, DM Murphy, JA Neuman, DK Nicks, DA Orsini, DD Parrish, TB Ryerson, DJ Tanner, C Warneke, RJ Weber and JC Wilson. (Jul 2004). Particle characteristics following cloud-modified transport from Asia to North America. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 109(D23). 10.1029/2003JD004198
Goldstein, AH, DB Millet, M McKay, L Jaegle, L Horowitz, O Cooper, R Hudman, DJ Jacob, S Oltmans and A Clarke. (Jul 2004). Impact of Asian emissions on observations at Trinidad Head, California, during ITCT 2K2. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 109(D23). 10.1029/2003JD004406
Cooper, OR, C Forster, D Parrish, M Trainer, E Dunlea, T Ryerson, G Hubler, F Fehsenfeld, D Nicks, J Holloway, J de Gouw, C Warneke, JM Roberts, F Flocke and J Moody. (Jul 2004). A case study of transpacific warm conveyor belt transport: Influence of merging airstreams on trace gas import to North America. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 109(D23). 10.1029/2003JD003624
Cooper, O, C Forster, D Parrish, E Dunlea, G Hubler, F Fehsenfeld, J Holloway, S Oltmans, B Johnson, A Wimmers and L Horowitz. (Jul 2004). On the life cycle of a stratospheric intrusion and its dispersion into polluted warm conveyor belts. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 109(D23). 10.1029/2003JD004006
Stohl, A, OR Cooper and P James. (Jun 2004). A cautionary note on the use of meteorological analysis fields for quantifying atmospheric mixing. JOURNAL OF THE ATMOSPHERIC SCIENCES , 61(12). 10.1175/1520-0469(2004)061<1446:ACNOTU>2.0.CO;2
Forster, C, O Cooper, A Stohl, S Eckhardt, P James, E Dunlea, DK Nicks, JS Holloway, G Hubler, DD Parrish, TB Ryerson and M Trainer. (Apr 2004). Lagrangian transport model forecasts and a transport climatology for the Intercontinental Transport and Chemical Transformation 2002 (ITCT 2K2) measurement campaign. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 109(D7). 10.1029/2003JD003589
Stohl, A, H Huntrieser, A Richter, S Beirle, OR Cooper, S Eckhardt, C Forster, P James, N Spichtinger, M Wenig, T Wagner, JP Burrows and U Platt. (Jul 2003). Rapid intercontinental air pollution transport associated with a meteorological bomb. ATMOSPHERIC CHEMISTRY AND PHYSICS , 3. 10.5194/acp-3-969-2003
Trickl, T, OR Cooper, H Eisele, P James, R Mucke and A Stohl. (Jun 2003). Intercontinental transport and its influence on the ozone concentrations over central Europe: Three case studies. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 108(D12). 10.1029/2002JD002735
Stohl, A, C Forster, S Eckhardt, N Spichtinger, H Huntrieser, J Heland, H Schlager, S Wilhelm, F Arnold and O Cooper. (Jun 2003). A backward modeling study of intercontinental pollution transport using aircraft measurements. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES , 108(D12). 10.1029/2002JD002862
Zanis, P, T Trickl, A Stohl, H Wernli, O Cooper, C Zerefos, H Gaeggeler, C Schnabel, L Tobler, PW Kubik, A Priller, HE Scheel, HJ Kanter, P Cristofanelli, C Forster, P James, E Gerasopoulos, A Delcloo, A Papayannis and H Claude. (Jun 2003). Forecast, observation and modelling of a deep stratospheric intrusion event over Europe. ATMOSPHERIC CHEMISTRY AND PHYSICS , 3. 10.5194/acp-3-763-2003
Cooper, OR, JL Moody, DD Parrish, M Trainer, TB Ryerson, JS Holloway, G Hubler, FC Fehsenfeld and MJ Evans. (Apr 2002). Trace gas composition of midlatitude cyclones over the western North Atlantic Ocean: A conceptual model. , 107(D7-8). 10.1029/2001JD000901
Cooper, OR, JL Moody, DD Parrish, M Trainer, JS Holloway, G Hubler, FC Fehsenfeld and A Stohl. (Apr 2002). Trace gas composition of midlatitude cyclones over the western North Atlantic Ocean: A seasonal comparison of O-3 and CO. , 107(D7-8). 10.1029/2001JD000902
Cooper OR; Moody JL; Thornberry TD; Town MS; Carroll MA. (Oct 2001). PROPHET 1998 meteorological overview and air-mass classification. Journal of Geophysical Research: Atmospheres , 106(D20), 24289-24299. 10.1029/2000JD900409
Thornberry T; Carroll MA; Keeler GJ; Sillman S; Bertman SB; Pippin MR; Ostling K; Grossenbacher JW; Shepson PB; Cooper OR. (Oct 2001). Observations of reactive oxidized nitrogen and speciation of NOy during the PROPHET summer 1998 intensive. Journal of Geophysical Research: Atmospheres , 106(D20), 24359-24386. 10.1029/2000JD900760
Sumner AL; Shepson PB; Couch TL; Thornberry T; Carroll MA; Sillman S; Pippin M; Bertman S; Tan D; Faloona I. (Oct 2001). A study of formaldehyde chemistry above a forest canopy. Journal of Geophysical Research: Atmospheres , 106(D20), 24387-24405. 10.1029/2000JD900761
Cooper OR; Moody JL; Parrish DD; Trainer M; Ryerson TB; Holloway JS; Hubler G; Fehsenfeld FC; Oltmans SJ; Evans MJ. (Mar 2001). Trace gas signatures of the airstreams within North Atlantic cyclones: Case studies from the North Atlantic Regional Experiment (NARE '97) aircraft intensive. Journal of Geophysical Research: Atmospheres , 106(D6), 5437-5456. 10.1029/2000JD900574
Parrish DD; Holloway JS; Jakoubek R; Trainer M; Ryerson TB; Hubler G; Fehsenfeld FC; Moody JL; Cooper OR. (Oct 2000). Mixing of anthropogenic pollution with stratospheric ozone: A case study from the North Atlantic wintertime troposphere. Journal of Geophysical Research: Atmospheres , 105(D19), 24363-24374. 10.1029/2000JD900291
Cooper OR; Moody JL. (Mar 2000). Meteorological controls on ozone at an elevated eastern United States regional background monitoring site. Journal of Geophysical Research: Atmospheres , 105(D5), 6855-6869. 10.1029/1999JD901015
Cooper OR; Moody JL; Davenport JC; Oltmans SJ; Johnson BJ; Chen X; Shepson PB; Merrill JT. (Sep 1998). Influence of springtime weather systems on vertical ozone distributions over three North American sites. Journal of Geophysical Research: Atmospheres , 103(D17), 22001-22013. 10.1029/98JD01801