Search Results - "Washenfelder, Rebecca A."

The Total Carbon Column Observing Network by Wunch, Debra, Toon, Geoffrey C., Blavier, Jean-François L., Washenfelder, Rebecca A., Notholt, Justus, Connor, Brian J., Griffith, David W. T., Sherlock, Vanessa, Wennberg, Paul O.

“…A global network of ground-based Fourier transform spectrometers has been founded to remotely measure column abundances of CO 2 , CO, CH 4 , N 2 O and other…”
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Glyoxal Yield from Isoprene Oxidation and Relation to Formaldehyde: Chemical Mechanism, Constraints from SENEX Aircraft Observations, and Interpretation of OMI Satellite Data by Miller, Christopher Chan, Jacob, Daniel J., Marais, Eloise A., Yu, Karen, Travis, Katherine R., Kim, Patrick S., Fisher, Jenny A., Zhu, Lei, Wolfe, Glenn M., Hanisco, Thomas F., Keutsch, Frank N., Kaiser, Jennifer, Min, Kyung-Eun, Brown, Steven S., Washenfelder, Rebecca A., Gonzalez Abad, Gonzalo, Chance, Kelly

“…Glyoxal (CHOCHO) is produced in the atmosphere by the oxidation of volatile organic compounds(VOCs). Like formaldehyde (HCHO), another VOC oxidation product,…”
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Emissions of Glyoxal and Other Carbonyl Compounds from Agricultural Biomass Burning Plumes Sampled by Aircraft by Zarzana, Kyle J, Min, Kyung-Eun, Washenfelder, Rebecca A, Kaiser, Jennifer, Krawiec-Thayer, Mitchell, Peischl, Jeff, Neuman, J. Andrew, Nowak, John B, Wagner, Nicholas L, Dubè, William P, St. Clair, Jason M, Wolfe, Glenn M, Hanisco, Thomas F, Keutsch, Frank N, Ryerson, Thomas B, Brown, Steven S

“…We report enhancements of glyoxal and methylglyoxal relative to carbon monoxide and formaldehyde in agricultural biomass burning plumes intercepted by the NOAA…”
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Complex refractive indices in the ultraviolet and visible spectral region for highly absorbing non-spherical biomass burning aerosol by Womack, Caroline C, Manfred, Katherine M, Wagner, Nicholas L, Adler, Gabriela, Franchin, Alessandro, Lamb, Kara D, Middlebrook, Ann M, Schwarz, Joshua P, Brock, Charles A, Brown, Steven S, Washenfelder, Rebecca A

“…Biomass burning aerosol is a major source of PM2.5, and significantly affects Earth's radiative budget. The magnitude of its radiative effect is poorly…”
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A portable, robust, stable, and tunable calibration source for gas-phase nitrous acid (HONO) by Lao, Melodie, Crilley, Leigh R, Salehpoor, Leyla, Furlani, Teles C, Bourgeois, Ilann, Neuman, J. Andrew, Rollins, Andrew W, Veres, Patrick R, Washenfelder, Rebecca A, Womack, Caroline C, Young, Cora J, VandenBoer, Trevor C

“…Atmospheric HONO mixing ratios in indoor and outdoor environments span a range of less than a few parts per trillion by volume (pptv) up to tens of parts per…”
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Cavity-Enhanced Measurements of Hydrogen Peroxide Absorption Cross Sections from 353 to 410 nm by Kahan, Tara F, Washenfelder, Rebecca A, Vaida, Veronica, Brown, Steven S

“…We report near-ultraviolet and visible absorption cross sections of hydrogen peroxide (H2O2) using incoherent broad-band cavity-enhanced absorption…”
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An Atmospheric Constraint on the NO2 Dependence of Daytime Near-Surface Nitrous Acid (HONO) by Pusede, Sally E, VandenBoer, Trevor C, Murphy, Jennifer G, Markovic, Milos Z, Young, Cora J, Veres, Patrick R, Roberts, James M, Washenfelder, Rebecca A, Brown, Steven S, Ren, Xinrong, Tsai, Catalina, Stutz, Jochen, Brune, William H, Browne, Eleanor C, Wooldridge, Paul J, Graham, Ashley R, Weber, Robin, Goldstein, Allen H, Dusanter, Sebastien, Griffith, Stephen M, Stevens, Philip S, Lefer, Barry L, Cohen, Ronald C

“…Recent observations suggest a large and unknown daytime source of nitrous acid (HONO) to the atmosphere. Multiple mechanisms have been proposed, many of which…”
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Characterization of a catalyst-based conversion technique to measure total particulate nitrogen and organic carbon and comparison to a particle mass measurement instrument by Stockwell, Chelsea E, Kupc, Agnieszka, Witkowski, Bartłomiej, Talukdar, Ranajit K, Liu, Yong, Selimovic, Vanessa, Zarzana, Kyle J, Sekimoto, Kanako, Warneke, Carsten, Washenfelder, Rebecca A, Yokelson, Robert J, Middlebrook, Ann M, Roberts, James M

“…The chemical composition of aerosol particles is a key aspect in determining their impact on the environment. For example, nitrogen-containing particles impact…”
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Molecular-Size-Separated Brown Carbon Absorption for Biomass-Burning Aerosol at Multiple Field Sites by Di Lorenzo, Robert A, Washenfelder, Rebecca A, Attwood, Alexis R, Guo, Hongyu, Xu, Lu, Ng, Nga L, Weber, Rodney J, Baumann, Karsten, Edgerton, Eric, Young, Cora J

“…Biomass burning is a known source of brown carbon aerosol in the atmosphere. We collected filter samples of biomass-burning emissions at three locations in…”
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High winter ozone pollution from carbonyl photolysis in an oil and gas basin by Edwards, Peter M., Brown, Steven S., Roberts, James M., Ahmadov, Ravan, Banta, Robert M., deGouw, Joost A., Dubé, William P., Field, Robert A., Flynn, James H., Gilman, Jessica B., Graus, Martin, Helmig, Detlev, Koss, Abigail, Langford, Andrew O., Lefer, Barry L., Lerner, Brian M., Li, Rui, Li, Shao-Meng, McKeen, Stuart A., Murphy, Shane M., Parrish, David D., Senff, Christoph J., Soltis, Jeffrey, Stutz, Jochen, Sweeney, Colm, Thompson, Chelsea R., Trainer, Michael K., Tsai, Catalina, Veres, Patrick R., Washenfelder, Rebecca A., Warneke, Carsten, Wild, Robert J., Young, Cora J., Yuan, Bin, Zamora, Robert

“…Data from the oil- and gas-producing basin of northeastern Utah and a box model are used to assess the photochemical reactions of nitrogen oxides and volatile…”
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Evidence in biomass burning smoke for a light-absorbing aerosol with properties intermediate between brown and black carbon by Adler, Gabriela, Wagner, Nicholas L., Lamb, Kara D., Manfred, Katherine M., Schwarz, Joshua P., Franchin, Alessandro, Middlebrook, Ann M., Washenfelder, Rebecca A., Womack, Caroline C., Yokelson, Robert J., Murphy, Daniel M.

“…Biomass combustion produces black carbon (BC) and brown carbon (BrC) aerosols that contribute substantially to warming the Earth's atmosphere. Accurate…”
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Characterization of water-soluble brown carbon chromophores from wildfire plumes in the western USA using size-exclusion chromatography by Azzarello, Lisa, Washenfelder, Rebecca A, Robinson, Michael A, Franchin, Alessandro, Womack, Caroline C, Holmes, Christopher D, Brown, Steven S, Middlebrook, Ann, Newberger, Tim, Sweeney, Colm, Young, Cora J

“…Wildfires are an important source of carbonaceous aerosol in the atmosphere. Organic aerosol that absorbs light in the ultraviolet to visible spectral range is…”
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Particle growth in the plumes of coal-fired power plants by Brock, Charles A., Washenfelder, Rebecca A., Trainer, Michael, Ryerson, Thomas B., Wilson, J. Charles, Reeves, J. Michael, Huey, L. Gregory, Holloway, John S., Parrish, David D., Hübler, Gerhard, Fehsenfeld, Fred C.

“…Submicron particle‐size distributions were measured with 10‐s resolution aboard the National Oceanic and Atmospheric Administration WP‐3D Orion research…”
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Formaldehyde evolution in US wildfire plumes during the Fire Influence on Regional to Global Environments and Air Quality experiment (FIREX-AQ) by Liao, Jin, Wolfe, Glenn M, Hannun, Reem A, St. Clair, Jason M, Hanisco, Thomas F, Gilman, Jessica B, Lamplugh, Aaron, Selimovic, Vanessa, Diskin, Glenn S, Nowak, John B, Halliday, Hannah S, DiGangi, Joshua P, Hall, Samuel R, Ullmann, Kirk, Holmes, Christopher D, Fite, Charles H, Agastra, Anxhelo, Ryerson, Thomas B, Peischl, Jeff, Bourgeois, Ilann, Warneke, Carsten, Coggon, Matthew M, Gkatzelis, Georgios I, Sekimoto, Kanako, Fried, Alan, Richter, Dirk, Weibring, Petter, Apel, Eric C, Hornbrook, Rebecca S, Brown, Steven S, Womack, Caroline C, Robinson, Michael A, Washenfelder, Rebecca A, Veres, Patrick R, Neuman, J. Andrew

“…Formaldehyde (HCHO) is one of the most abundant non-methane volatile organic compounds (VOCs) emitted by fires. HCHO also undergoes chemical production and…”
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Contrasting Reactive Organic Carbon Observations in the Southeast United States (SOAS) and Southern California (CalNex) by Heald, Colette L, Gouw, Joost de, Goldstein, Allen H, Guenther, Alex B, Hayes, Patrick L, Hu, Weiwei, Isaacman-VanWertz, Gabriel, Jimenez, Jose L, Keutsch, Frank N, Koss, Abigail R, Misztal, Pawel K, Rappenglück, Bernhard, Roberts, James M, Stevens, Philip S, Washenfelder, Rebecca A, Warneke, Carsten, Young, Cora J

“…Despite the central role of reactive organic carbon (ROC) in the formation of secondary species that impact global air quality and climate, our assessment of…”
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Vertically Resolved Measurements of Nighttime Radical Reservoirs in Los Angeles and Their Contribution to the Urban Radical Budget by Young, Cora J, Washenfelder, Rebecca A, Roberts, James M, Mielke, Levi H, Osthoff, Hans D, Tsai, Catalina, Pikelnaya, Olga, Stutz, Jochen, Veres, Patrick R, Cochran, Anthony K, VandenBoer, Trevor C, Flynn, James, Grossberg, Nicole, Haman, Christine L, Lefer, Barry, Stark, Harald, Graus, Martin, de Gouw, Joost, Gilman, Jessica B, Kuster, William C, Brown, Steven S

“…Photolabile nighttime radical reservoirs, such as nitrous acid (HONO) and nitryl chloride (ClNO2), contribute to the oxidizing potential of the atmosphere,…”
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Aerosol optical properties in the southeastern United States in summer – Part 1: Hygroscopic growth by Brock, Charles A., Wagner, Nicholas L., Anderson, Bruce E., Attwood, Alexis R., Beyersdorf, Andreas, Campuzano-Jost, Pedro, Carlton, Annmarie G., Day, Douglas A., Diskin, Glenn S., Gordon, Timothy D., Jimenez, Jose L., Lack, Daniel A., Liao, Jin, Markovic, Milos Z., Middlebrook, Ann M., Ng, Nga L., Perring, Anne E., Richardson, Matthews S., Schwarz, Joshua P., Washenfelder, Rebecca A., Welti, Andre, Xu, Lu, Ziemba, Luke D., Murphy, Daniel M.

“…Aircraft observations of meteorological, trace gas, and aerosol properties were made during May–September 2013 in the southeastern United States (US) under…”
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Airborne Observations Constrain Heterogeneous Nitrogen and Halogen Chemistry on Tropospheric and Stratospheric Biomass Burning Aerosol by Decker, Zachary C. J., Novak, Gordon A., Aikin, Kenneth, Veres, Patrick R., Neuman, J. Andrew, Bourgeois, Ilann, Bui, T. Paul, Campuzano‐Jost, Pedro, Coggon, Matthew M., Day, Douglas A., DiGangi, Joshua P., Diskin, Glenn S., Dollner, Maximilian, Franchin, Alessandro, Fredrickson, Carley D., Froyd, Karl D., Gkatzelis, Georgios I., Guo, Hongyu, Hall, Samuel R., Halliday, Hannah, Hayden, Katherine, Holmes, Christopher D., Jimenez, Jose L., Kupc, Agnieszka, Lindaas, Jakob, Middlebrook, Ann M., Moore, Richard H., Nault, Benjamin A., Nowak, John B., Pagonis, Demetrios, Palm, Brett B., Peischl, Jeff, Piel, Felix M., Rickly, Pamela S., Robinson, Michael A., Rollins, Andrew W., Ryerson, Thomas B., Schill, Gregory P., Sekimoto, Kanako, Thompson, Chelsea R., Thornhill, Kenneth L., Thornton, Joel A., Ullmann, Kirk, Warneke, Carsten, Washenfelder, Rebecca A., Weinzierl, Bernadett, Wiggins, Elizabeth B., Williamson, Christina J., Winstead, Edward L., Wisthaler, Armin, Womack, Caroline C., Brown, Steven S.

“…Heterogeneous chemical cycles of pyrogenic nitrogen and halides influence tropospheric ozone and affect the stratosphere during extreme Pyrocumulonimbus…”
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Novel Analysis to Quantify Plume Crosswind Heterogeneity Applied to Biomass Burning Smoke by Decker, Zachary C. J, Wang, Siyuan, Bourgeois, Ilann, Campuzano Jost, Pedro, Coggon, Matthew M, DiGangi, Joshua P, Diskin, Glenn S, Flocke, Frank M, Franchin, Alessandro, Fredrickson, Carley D, Gkatzelis, Georgios I, Hall, Samuel R, Halliday, Hannah, Hayden, Katherine, Holmes, Christopher D, Huey, L. Gregory, Jimenez, Jose L, Lee, Young Ro, Lindaas, Jakob, Middlebrook, Ann M, Montzka, Denise D, Neuman, J. Andrew, Nowak, John B, Pagonis, Demetrios, Palm, Brett B, Peischl, Jeff, Piel, Felix, Rickly, Pamela S, Robinson, Michael A, Rollins, Andrew W, Ryerson, Thomas B, Sekimoto, Kanako, Thornton, Joel A, Tyndall, Geoff S, Ullmann, Kirk, Veres, Patrick R, Warneke, Carsten, Washenfelder, Rebecca A, Weinheimer, Andrew J, Wisthaler, Armin, Womack, Caroline, Brown, Steven S

“…We present a novel method, the Gaussian observational model for edge to center heterogeneity (GOMECH), to quantify the horizontal chemical structure of plumes…”
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Ozone chemistry in western U.S. wildfire plumes by Xu, Lu, Crounse, John D, Vasquez, Krystal T, Allen, Hannah, Wennberg, Paul O, Bourgeois, Ilann, Brown, Steven S, Campuzano-Jost, Pedro, Coggon, Matthew M, Crawford, James H, DiGangi, Joshua P, Diskin, Glenn S, Fried, Alan, Gargulinski, Emily M, Gilman, Jessica B, Gkatzelis, Georgios I, Guo, Hongyu, Hair, Johnathan W, Hall, Samuel R, Halliday, Hannah A, Hanisco, Thomas F, Hannun, Reem A, Holmes, Christopher D, Huey, L Gregory, Jimenez, Jose L, Lamplugh, Aaron, Lee, Young Ro, Liao, Jin, Lindaas, Jakob, Neuman, J Andrew, Nowak, John B, Peischl, Jeff, Peterson, David A, Piel, Felix, Richter, Dirk, Rickly, Pamela S, Robinson, Michael A, Rollins, Andrew W, Ryerson, Thomas B, Sekimoto, Kanako, Selimovic, Vanessa, Shingler, Taylor, Soja, Amber J, St Clair, Jason M, Tanner, David J, Ullmann, Kirk, Veres, Patrick R, Walega, James, Warneke, Carsten, Washenfelder, Rebecca A, Weibring, Petter, Wisthaler, Armin, Wolfe, Glenn M, Womack, Caroline C, Yokelson, Robert J

“…Wildfires are a substantial but poorly quantified source of tropospheric ozone (O ). Here, to investigate the highly variable O chemistry in wildfire plumes,…”
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