Search Results - "SWEENEY, COLM"

Advances in quantifying air-sea gas exchange and environmental forcing by Wanninkhof, Rik, Asher, William E, Ho, David T, Sweeney, Colm, McGillis, Wade R

“…The past decade has seen a substantial amount of research on air-sea gas exchange and its environmental controls. These studies have significantly advanced the…”
Get full text

Assessment of methane emissions from the U.S. oil and gas supply chain by Alvarez, Ramón A, Zavala-Araiza, Daniel, Lyon, David R, Allen, David T, Barkley, Zachary R, Brandt, Adam R, Davis, Kenneth J, Herndon, Scott C, Jacob, Daniel J, Karion, Anna, Kort, Eric A, Lamb, Brian K, Lauvaux, Thomas, Maasakkers, Joannes D, Marchese, Anthony J, Omara, Mark, Pacala, Stephen W, Peischl, Jeff, Robinson, Allen L, Shepson, Paul B, Sweeney, Colm, Townsend-Small, Amy, Wofsy, Steven C, Hamburg, Steven P

“…Methane emissions from the U.S. oil and natural gas supply chain were estimated by using ground-based, facility-scale measurements and validated with aircraft…”
Get full text

Permafrost carbon emissions in a changing Arctic by Miner, Kimberley R., Turetsky, Merritt R., Malina, Edward, Bartsch, Annett, Tamminen, Johanna, McGuire, A. David, Fix, Andreas, Sweeney, Colm, Elder, Clayton D., Miller, Charles E.

Get full text

Long-term ozone trends at rural ozone monitoring sites across the United States, 1990-2010 by Cooper, Owen R., Gao, Ru-Shan, Tarasick, David, Leblanc, Thierry, Sweeney, Colm

“…This analysis provides an up‐to‐date assessment of long‐term (1990–2010) rural ozone trends using all available data in the western (12 sites) and eastern (41…”
Get full text

The reinvigoration of the Southern Ocean carbon sink by Landschützer, Peter, Gruber, Nicolas, Haumann, F. Alexander, Rödenbeck, Christian, Bakker, Dorothee C. E., van Heuven, Steven, Hoppema, Mario, Metzl, Nicolas, Sweeney, Colm, Takahashi, Taro, Tilbrook, Bronte, Wanninkhof, Rik

“…Several studies have suggested that the carbon sink in the Southern Ocean—the ocean's strongest region for the uptake of anthropogenic CO2—has weakened in…”
Get full text

High‐resolution atmospheric inversion of urban CO2 emissions during the dormant season of the Indianapolis Flux Experiment (INFLUX) by Lauvaux, Thomas, Miles, Natasha L., Deng, Aijun, Richardson, Scott J., Cambaliza, Maria O., Davis, Kenneth J., Gaudet, Brian, Gurney, Kevin R., Huang, Jianhua, O'Keefe, Darragh, Song, Yang, Karion, Anna, Oda, Tomohiro, Patarasuk, Risa, Razlivanov, Igor, Sarmiento, Daniel, Shepson, Paul, Sweeney, Colm, Turnbull, Jocelyn, Wu, Kai

“…Based on a uniquely dense network of surface towers measuring continuously the atmospheric concentrations of greenhouse gases (GHGs), we developed the first…”
Get full text

Climatological distributions of pH, pCO2, total CO2, alkalinity, and CaCO3 saturation in the global surface ocean, and temporal changes at selected locations by Takahashi, Taro, Sutherland, S.C., Chipman, D.W., Goddard, J.G., Ho, Cheng, Newberger, Timothy, Sweeney, Colm, Munro, D.R.

“…Climatological mean monthly distributions of pH in the total H+ scale, total CO2 concentration (TCO2), and the degree of CaCO3 saturation for the global…”
Get full text

Anthropogenic emissions of methane in the United States by Miller, Scot M., Wofsy, Steven C., Michalak, Anna M., Kort, Eric A., Andrews, Arlyn E., Biraud, Sebastien C., Dlugokencky, Edward J., Eluszkiewicz, Janusz, Fischer, Marc L., Janssens-Maenhout, Greet, Miller, Ben R., Miller, John B., Montzka, Stephen A., Nehrkorn, Thomas, Sweeney, Colm

“…This study quantitatively estimates the spatial distribution of anthropogenic methane sources in the United States by combining comprehensive atmospheric…”
Get full text

Cold season emissions dominate the Arctic tundra methane budget by Zona, Donatella, Gioli, Beniamino, Commane, Róisín, Lindaas, Jakob, Wofsy, Steven C., Miller, Charles E., Dinardo, Steven J., Dengel, Sigrid, Sweeney, Colm, Karion, Anna, Chang, Rachel Y.-W., Henderson, John M., Murphy, Patrick C., Goodrich, Jordan P., Moreaux, Virginie, Liljedahl, Anna, Watts, Jennifer D., Kimball, John S., Lipson, David A., Oechel, Walter C.

“…Arctic terrestrial ecosystems are major global sources of methane (CH₄); hence, it is important to understand the seasonal and climatic controls on CH₄…”
Get full text

Methane emissions estimate from airborne measurements over a western United States natural gas field by Karion, Anna, Sweeney, Colm, Pétron, Gabrielle, Frost, Gregory, Michael Hardesty, R., Kofler, Jonathan, Miller, Ben R., Newberger, Tim, Wolter, Sonja, Banta, Robert, Brewer, Alan, Dlugokencky, Ed, Lang, Patricia, Montzka, Stephen A., Schnell, Russell, Tans, Pieter, Trainer, Michael, Zamora, Robert, Conley, Stephen

“…Methane (CH4) emissions from natural gas production are not well quantified and have the potential to offset the climate benefits of natural gas over other…”
Get full text

Siberian and temperate ecosystems shape Northern Hemisphere atmospheric CO₂ seasonal amplification by Lin, Xin, Rogers, Brendan M., Sweeney, Colm, Chevallier, Frédéric, Arshinov, Mikhail, Dlugokencky, Edward, Machida, Toshinobu, Sasakawa, Motoki, Tans, Pieter, Keppel-Aleks, Gretchen

“…The amplitude of the atmospheric CO₂ seasonal cycle has increased by 30 to 50% in the Northern Hemisphere (NH) since the 1960s, suggesting widespread…”
Get full text

Regional trace-gas source attribution using a field-deployed dual frequency comb spectrometer by Coburn, Sean, Alden, Caroline B., Wright, Robert, Cossel, Kevin, Baumann, Esther, Truong, Gar-Wing, Giorgetta, Fabrizio, Sweeney, Colm, Newbury, Nathan R., Prasad, Kuldeep, Coddington, Ian, Rieker, Gregory B.

“…Identification and quantification of trace-gas sources is a major challenge for understanding and regulating air quality and greenhouse gas emissions. Current…”
Get full text

Carbon dioxide sources from Alaska driven by increasing early winter respiration from Arctic tundra by Commane, Róisín, Lindaas, Jakob, Benmergui, Joshua, Luus, Kristina A., Chang, Rachel Y.-W., Daube, Bruce C., Euskirchen, Eugénie S., Henderson, John M., Karion, Anna, Miller, John B., Miller, Scot M., Parazoo, Nicholas C., Randerson, James T., Sweeney, Colm, Tans, Pieter, Thoning, Kirk, Veraverbeke, Sander, Miller, Charles E., Wofsy, Steven C.

“…High-latitude ecosystems have the capacity to release large amounts of carbon dioxide (CO₂) to the atmosphere in response to increasing temperatures,…”
Get full text

Reconciling divergent estimates of oil and gas methane emissions by Zavala-Araiza, Daniel, Lyon, David R., Alvarez, Ramón A., Davis, Kenneth J., Harriss, Robert, Herndon, Scott C., Karion, Anna, Kort, Eric Adam, Lamb, Brian K., Lan, Xin, Marchese, Anthony J., Pacala, Stephen W., Robinson, Allen L., Shepson, Paul B., Sweeney, Colm, Talbot, Robert, Townsend-Small, Amy, Yacovitch, Tara I., Zimmerle, Daniel J., Hamburg, Steven P.

“…Published estimates of methane emissions from atmospheric data (top-down approaches) exceed those from source-based inventories (bottom-up approaches), leading…”
Get full text

Toward a better understanding and quantification of methane emissions from shale gas development by Caulton, Dana R., Shepson, Paul B., Santoro, Renee L., Sparks, Jed P., Howarth, Robert W., Ingraffea, Anthony R., Cambaliza, Maria O. L., Sweeney, Colm, Karion, Anna, Davis, Kenneth J., Stirm, Brian H., Montzka, Stephen A., Miller, Ben R.

“…The identification and quantification of methane emissions from natural gas production has become increasingly important owing to the increase in the natural…”
Get full text

Demonstration of high-precision continuous measurements of water vapor isotopologues in laboratory and remote field deployments using wavelength-scanned cavity ring-down spectroscopy (WS-CRDS) technology by Gupta, Priya, Noone, David, Galewsky, Joseph, Sweeney, Colm, Vaughn, Bruce H.

“…This study demonstrates the application of Wavelength‐Scanned Cavity Ring‐Down Spectroscopy (WS‐CRDS) technology which is used to measure the stable isotopic…”
Get full text

Enhanced oceanic CO2 uptake along the rapidly changing West Antarctic Peninsula by Brown, Michael S., Munro, David R., Feehan, Colette J., Sweeney, Colm, Ducklow, Hugh W., Schofield, Oscar M.

“…The global ocean is an important sink for anthropogenic CO 2 (ref. 1 ). Nearly half of the oceanic CO 2 uptake occurs in the Southern Ocean 2 . Although the…”
Get full text

The 2015–2016 carbon cycle as seen from OCO-2 and the global in situ network by Crowell, Sean, Baker, David, Schuh, Andrew, Basu, Sourish, Jacobson, Andrew R., Chevallier, Frederic, Liu, Junjie, Deng, Feng, Feng, Liang, McKain, Kathryn, Chatterjee, Abhishek, Miller, John B., Stephens, Britton B., Eldering, Annmarie, Crisp, David, Schimel, David, Nassar, Ray, O'Dell, Christopher W., Oda, Tomohiro, Sweeney, Colm, Palmer, Paul I., Jones, Dylan B. A.

“…The Orbiting Carbon Observatory-2 has been on orbit since 2014, and its global coverage holds the potential to reveal new information about the carbon cycle…”
Get full text

Toward quantification and source sector identification of fossil fuel CO2 emissions from an urban area: Results from the INFLUX experiment by Turnbull, Jocelyn C., Sweeney, Colm, Karion, Anna, Newberger, Timothy, Lehman, Scott J., Tans, Pieter P., Davis, Kenneth J., Lauvaux, Thomas, Miles, Natasha L., Richardson, Scott J., Cambaliza, Maria Obiminda, Shepson, Paul B., Gurney, Kevin, Patarasuk, Risa, Razlivanov, Igor

“…The Indianapolis Flux Experiment (INFLUX) aims to develop and assess methods for quantifying urban greenhouse gas emissions. Here we use CO2, 14CO2, and CO…”
Get full text

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…”
Get full text