Zobrazeno 1 - 10
of 97
pro vyhledávání: '"Kirk Ullmann"'
Autor:
Chunxiang Ye, Xianliang Zhou, Yingjie Zhang, Youfeng Wang, Jianshu Wang, Chong Zhang, Robert Woodward-Massey, Christopher Cantrell, Roy L. Mauldin, Teresa Campos, Rebecca S. Hornbrook, John Ortega, Eric C. Apel, Julie Haggerty, Samuel Hall, Kirk Ullmann, Andrew Weinheimer, Jochen Stutz, Thomas Karl, James N. Smith, Alex Guenther, Shaojie Song
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-10 (2023)
Abstract External cycling regenerating nitrogen oxides (NOx ≡ NO + NO2) from their oxidative reservoir, NOz, is proposed to reshape the temporal–spatial distribution of NOx and consequently hydroxyl radical (OH), the most important oxidant in the
Externí odkaz:
https://doaj.org/article/dc8026c53c4f45c198b40e6742d8522e
Autor:
Zachary C. J. Decker, Gordon A. Novak, Kenneth Aikin, Patrick R. Veres, J. Andrew Neuman, Ilann Bourgeois, T. Paul Bui, Pedro Campuzano‐Jost, Matthew M. Coggon, Douglas A. Day, Joshua P. DiGangi, Glenn S. Diskin, Maximilian Dollner, Alessandro Franchin, Carley D. Fredrickson, Karl D. Froyd, Georgios I. Gkatzelis, Hongyu Guo, Samuel R. Hall, Hannah Halliday, Katherine Hayden, Christopher D. Holmes, Jose L. Jimenez, Agnieszka Kupc, Jakob Lindaas, Ann M. Middlebrook, Richard H. Moore, Benjamin A. Nault, John B. Nowak, Demetrios Pagonis, Brett B. Palm, Jeff Peischl, Felix M. Piel, Pamela S. Rickly, Michael A. Robinson, Andrew W. Rollins, Thomas B. Ryerson, Gregory P. Schill, Kanako Sekimoto, Chelsea R. Thompson, Kenneth L. Thornhill, Joel A. Thornton, Kirk Ullmann, Carsten Warneke, Rebecca A. Washenfelder, Bernadett Weinzierl, Elizabeth B. Wiggins, Christina J. Williamson, Edward L. Winstead, Armin Wisthaler, Caroline C. Womack, Steven S. Brown
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 4, Pp n/a-n/a (2024)
Abstract Heterogeneous chemical cycles of pyrogenic nitrogen and halides influence tropospheric ozone and affect the stratosphere during extreme Pyrocumulonimbus (PyroCB) events. We report field‐derived N2O5 uptake coefficients, γ(N2O5), and ClNO2
Externí odkaz:
https://doaj.org/article/615331e2ff6540a383e88d87f5e6264c
Autor:
Rebecca H. Schwantes, Forrest G. Lacey, Simone Tilmes, Louisa K. Emmons, Peter H. Lauritzen, Stacy Walters, Patrick Callaghan, Colin M. Zarzycki, Mary C. Barth, Duseong S. Jo, Julio T. Bacmeister, Richard B. Neale, Francis Vitt, Erik Kluzek, Behrooz Roozitalab, Samuel R. Hall, Kirk Ullmann, Carsten Warneke, Jeff Peischl, Ilana B. Pollack, Frank Flocke, Glenn M. Wolfe, Thomas F. Hanisco, Frank N. Keutsch, Jennifer Kaiser, Thao Paul V. Bui, Jose L. Jimenez, Pedro Campuzano‐Jost, Eric C. Apel, Rebecca S. Hornbrook, Alan J. Hills, Bin Yuan, Armin Wisthaler
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 14, Iss 6, Pp n/a-n/a (2022)
Abstract A new configuration of the Community Earth System Model (CESM)/Community Atmosphere Model with full chemistry (CAM‐chem) supporting the capability of horizontal mesh refinement through the use of the spectral element (SE) dynamical core is
Externí odkaz:
https://doaj.org/article/faf95034c7984b14afec9e4c6be420f1
Autor:
Jason R. Schroeder, James H. Crawford, Joon-Young Ahn, Limseok Chang, Alan Fried, James Walega, Andrew Weinheimer, Denise D. Montzka, Samuel R. Hall, Kirk Ullmann, Armin Wisthaler, Tomas Mikoviny, Gao Chen, Donald R. Blake, Nicola J. Blake, Stacey C. Hughes, Simone Meinardi, Glenn Diskin, Joshua P. Digangi, Yonghoon Choi, Sally E. Pusede, Greg L. Huey, David J. Tanner, Michelle Kim, Paul Wennberg
Publikováno v:
Elementa: Science of the Anthropocene, Vol 8, Iss 1 (2020)
The Seoul Metropolitan Area (SMA) has a population of 24 million and frequently experiences unhealthy levels of ozone (O3). In this work, measurements taken during the Korea-United States Air Quality Study (KORUS-AQ, 2016) are used to explore regiona
Externí odkaz:
https://doaj.org/article/5618ba0e30d74a2cb866280a183e0617
Autor:
Daniel C. Anderson, Julie M. Nicely, Ross J. Salawitch, Timothy P. Canty, Russell R. Dickerson, Thomas F. Hanisco, Glenn M. Wolfe, Eric C. Apel, Elliot Atlas, Thomas Bannan, Stephane Bauguitte, Nicola J. Blake, James F. Bresch, Teresa L. Campos, Lucy J. Carpenter, Mark D. Cohen, Mathew Evans, Rafael P. Fernandez, Brian H. Kahn, Douglas E. Kinnison, Samuel R. Hall, Neil R.P. Harris, Rebecca S. Hornbrook, Jean-Francois Lamarque, Michael Le Breton, James D. Lee, Carl Percival, Leonhard Pfister, R. Bradley Pierce, Daniel D. Riemer, Alfonso Saiz-Lopez, Barbara J.B. Stunder, Anne M. Thompson, Kirk Ullmann, Adam Vaughan, Andrew J. Weinheimer
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-13 (2016)
High ozone and low water structures in the tropical western Pacific are commonly attributed to transport from the stratosphere or mid-latitudes. Here, Anderson et al. show these structures actually result from ozone production in biomass burning plum
Externí odkaz:
https://doaj.org/article/fd24ca40e10e4a769d066eb841975ce0
Autor:
Christina Williamson, Dylan Simone, Charles Brock, Ming Lyu, Matthew Brown, Luke Ziemba, Joowan Kim, Teresa Campos, Kirk Ullmann, Laura Pan
The Asian monsoon anticyclone transports aerosol and gas phase pollutants from the boundary layer to the upper troposphere and lower stratosphere, from whence they are transported out over the Western Pacific by eddy shedding. This significantly incr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef5a9768ff4797151c317507e7b99665
https://doi.org/10.5194/egusphere-egu23-1966
https://doi.org/10.5194/egusphere-egu23-1966
Autor:
Chunxiang Ye, Xianliang Zhou, Yingjie Zhang, Youfeng Wang, Jianshu Wang, Chong Zhang, Robert Woodward-Massey, Christopher Canterll, Roy Mauldin, Teresa Campos, Rebecca Hornbrook, John Ortega, Eric Apel, Julie Haggerty, Samuel Hall, Kirk Ullmann, Andrew Weinheimer, Jochen Stutz, Thomas Karl, James Smith, Alex Guenther, Shaojie Song
External cycling routes regenerating NOx from its oxidative reservoir, NOz, might reshape the temporal–spatial distribution of NOx and consequently OH, the most important atmospheric oxidant. However, the kinetics and mechanisms of the external cyc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a44e5e6517b8d3f10050e6fd66f1b98
https://doi.org/10.21203/rs.3.rs-2806569/v1
https://doi.org/10.21203/rs.3.rs-2806569/v1
Autor:
Elizabeth Asher, Gregory P. Schill, James W. Elkins, L. Greg Huey, Michael J. Prather, Kirk Ullmann, Susan E. Strahan, J. Andrew Neuman, Bernadett Weinzierl, Thomas F. Hanisco, Nicholas L. Wagner, Michelle J. Kim, David W. Fahey, Junhua Liu, Karl D. Froyd, Benjamin A. Nault, Maximilian Dollner, Joshua P. DiGangi, Charles A. Brock, Joshua P. Schwarz, Amy H. Butler, Leslie R. Lait, Karen H. Rosenlof, Jean-Francois Lamarque, Chelsea R. Thompson, Eric A. Ray, Huisheng Bian, Donald R. Blake, Glenn M. Wolfe, Stephen D. Steenrod, Julie M. Nicely, Thomas B. Ryerson, Paul A. Newman, Forrest Lacey, Cecilia Chang, Arlene M. Fiore, Steven C. Wofsy, Joseph M. Katich, Pedro Campuzano-Jost, John D. Crounse, C. M. Flynn, Ralph F. Keeling, Linghan Zeng, M. R. Sargent, G. J. P. Correa, Eric C. Apel, Colm Sweeney, Christina Williamson, Eric J. Morgan, Britton B. Stephens, Rodney J. Weber, Alma Hodzic, Stephen A. Montzka, Jack E. Dibb, Roisin Commane, Louis Nguyen, Yenny Gonzalez, Hannah M. Allen, Fred L. Moore, Bruce C. Daube, William H. Brune, Alexander B. Thames, Daniel M. Murphy, Jose L. Jimenez, Simone Meinardi, Sarah A. Strode, T. Paul Bui, Jason M. St. Clair, Paul O. Wennberg, Kathryn McKain, Glenn S. Diskin, Reem A. Hannun, Ilann Bourgeois, Rebecca S. Hornbrook, Samuel R. Hall, Hao Guo, Mian Chin, Andrew W. Rollins, Eric J. Hintsa, Alan J. Hills, J.W. Budney, Agnieszka Kupc, David O. Miller, Lee T. Murray, Patrick R. Veres, Siyuan Wang, Jeff Peischl
Publikováno v:
Bulletin of the American Meteorological Society. 103:E761-E790
This article provides an overview of the NASA Atmospheric Tomography (ATom) mission and a summary of selected scientific findings to date. ATom was an airborne measurements and modeling campaign aimed at characterizing the composition and chemistry o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d161cd8b645731961d66af931648ece
https://doi.org/10.1175/bams-d-20-0315.1
https://doi.org/10.1175/bams-d-20-0315.1
Autor:
Xuan Zhang, Siyuan Wang, Eric C. Apel, Rebecca H. Schwantes, Rebecca S. Hornbrook, Alan J. Hills, Kate E. DeMarsh, Zeyi Moo, John Ortega, William H. Brune, Roy L. Mauldin, Christopher A. Cantrell, Alexander P. Teng, Donald R. Blake, Teresa Campos, Bruce Daube, Louisa K. Emmons, Samuel R. Hall, Kirk Ullmann, Steven C. Wofsy, Paul O. Wennberg, Geoffrey S. Tyndall, John J. Orlando
he reactive chemistry of isoprene, which is the dominant hydrocarbon in biogenic emissions, has a controlling influence on the composition and cleansing capacity of the global atmosphere. Despite decades of research, isoprene continues to offer surpr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::43a4b8726b1f237b5fe2041599fb80ac
https://resolver.caltech.edu/CaltechAUTHORS:20230221-19480300.55
https://resolver.caltech.edu/CaltechAUTHORS:20230221-19480300.55
Autor:
Teresa Campos, Amy P. Sullivan, Carley D. Fredrickson, Frank Flocke, Delphine K. Farmer, Lu Hu, Qiaoyun Peng, Wade Permar, Ben H. Lee, Joel A. Thornton, Samuel R. Hall, Emily V. Fischer, Matson A. Pothier, Eric C. Apel, Andrew J. Weinheimer, I-Ting Ku, Kirk Ullmann, Brett B. Palm, Jeffrey L. Collett, Lauren A. Garofalo
Publikováno v:
ACS Earth and Space Chemistry. 5:2652-2667
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82fce32040cfed71f06b3ef081424249
https://doi.org/10.1021/acsearthspacechem.1c00086
https://doi.org/10.1021/acsearthspacechem.1c00086