Search Results - "Daube, C"

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,…”
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Enhanced Seasonal Exchange of CO₂ by Northern Ecosystems Since 1960 by Graven, H. D., Keeling, R. F., Piper, S. C., Patra, P. K., Stephens, B. B., Wofsy, S. C., Welp, L. R., Sweeney, C., Tans, P. P., Kelley, J. J., Daube, B. C., Kort, E. A., Santoni, G. W., Bent, J. D.

“…Seasonal variations of atmospheric carbon dioxide (CO₂) in the Northern Hemisphere have increased since the 1950s, but sparse observations have prevented a…”
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Constraining Remote Oxidation Capacity with ATom Observations by Travis, Katherine R., Heald, Colette L., Allen, Hannah M., Apel, Eric C., Arnold, Stephen R., Blake, Donald R., Brune, William H., Chen, Xin, Commane, Róisín, Crounse, John D., Daube, Bruce C., Diskin, Glenn S., Elkins, James W., Evans, Mathew J., Hall, Samuel R., Hintsa, Eric J., Hornbrook, Rebecca S., Kasibhatla, Prasad S., Kim, Michelle J., Luo, Gan, McKain, Kathryn, Millet, Dylan B., Moore, Fred L., Peischl, Jeffrey, Ryerson, Thomas B., Sherwen, Tomás, Thames, Alexander B., Ullmann, Kirk, Wang, Xuan, Wennberg, Paul O., Wolfe, Glenn M., Yu, Fangqun

“…The global oxidation capacity, defined as the tropospheric mean concentration of the hydroxyl radical (OH), controls the lifetime of reactive trace gases in…”
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Airborne measurements of oxygen concentration from the surface to the lower stratosphere and pole to pole by Stephens, Britton B, Morgan, Eric J, Bent, Jonathan D, Keeling, Ralph F, Watt, Andrew S, Shertz, Stephen R, Daube, Bruce C

“…We have developed in situ and flask sampling systems for airborne measurements of variations in the O2/N2 ratio at the part per million level. We have deployed…”
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long-term record of carbon exchange in a boreal black spruce forest: means, responses to interannual variability, and decadal trends by DUNN, ALLISON L, BARFORD, CAROL C, WOFSY, STEVEN C, GOULDEN, MICHAEL L, DAUBE, BRUCE C

“…We present a decadal (1994-2004) record of carbon dioxide flux in a 160-year-old black spruce forest/veneer bog complex in central Manitoba, Canada. The…”
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The MOPITT Version 6 product: algorithm enhancements and validation by Deeter, M. N, Martínez-Alonso, S, Edwards, D. P, Emmons, L. K, Gille, J. C, Worden, H. M, Sweeney, C, Pittman, J. V, Daube, B. C, Wofsy, S. C

“…The Measurements of Pollution in the Troposphere (MOPITT) Version 6 (V6) product for carbon monoxide (CO) incorporates several enhancements which will benefit…”
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Short-term methane emissions from 2 dairy farms in California estimated by different measurement techniques and US Environmental Protection Agency inventory methodology: A case study by Arndt, C, Leytem, A B, Hristov, A N, Zavala-Araiza, D, Cativiela, J P, Conley, S, Daube, C, Faloona, I, Herndon, S C

“…Reported estimates of CH emissions from ruminants and manure management are up to 2 times higher in atmospheric top-down calculations than in bottom-up (BU)…”
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Validation and error estimation of AIRS MUSES CO profiles with HIPPO, ATom, and NOAA GML aircraft observations by Hegarty, Jennifer D, Cady-Pereira, Karen E, Payne, Vivienne H, Kulawik, Susan S, Worden, John R, Kantchev, Valentin, Worden, Helen M, McKain, Kathryn, Pittman, Jasna V, Commane, Róisín, Daube Jr., Bruce C, Kort, Eric A

“…Single-footprint retrievals of carbon monoxide from the Atmospheric Infrared Sounder (AIRS) are evaluated using aircraft in situ observations. The aircraft…”
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Airborne observations of upper troposphere and lower stratosphere composition change in active convection producing above-anvil cirrus plumes by Gordon, Andrea E, Homeyer, Cameron R, Smith, Jessica B, Ueyama, Rei, Dean-Day, Jonathan M, Atlas, Elliot L, Smith, Kate, Pittman, Jasna V, Sayres, David S, Wilmouth, David M, Pandey, Apoorva, St. Clair, Jason M, Hanisco, Thomas F, Hare, Jennifer, Hannun, Reem A, Wofsy, Steven, Daube, Bruce C, Donnelly, Stephen

“…Tropopause-overshooting convection in the midlatitudes provides a rapid transport pathway for air from the lower troposphere to reach the upper troposphere and…”
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Carbon in Amazon Forests: Unexpected Seasonal Fluxes and Disturbance-Induced Losses by Saleska, Scott R., Miller, Scott D., Matross, Daniel M., Goulden, Michael L., Wofsy, Steven C., da Rocha, Humberto R., de Camargo, Plinio B., Crill, Patrick, Daube, Bruce C., de Freitas, Helber C., Hutyra, Lucy, Keller, Michael, Kirchhoff, Volker, Menton, Mary, Munger, J. William, Pyle, Elizabeth Hammond, Rice, Amy H., Silva, Hudson

“…The net ecosystem exchange of carbon dioxide was measured by eddy covariance methods for 3 years in two old-growth forest sites near Santarém, Brazil. Carbon…”
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Ambient aerosol properties in the remote atmosphere from global-scale in situ measurements by Brock, Charles A, Froyd, Karl D, Dollner, Maximilian, Williamson, Christina J, Schill, Gregory, Murphy, Daniel M, Wagner, Nicholas J, Kupc, Agnieszka, Jimenez, Jose L, Campuzano-Jost, Pedro, Nault, Benjamin A, Schroder, Jason C, Day, Douglas A, Price, Derek J, Weinzierl, Bernadett, Schwarz, Joshua P, Katich, Joseph M, Wang, Siyuan, Zeng, Linghan, Weber, Rodney, Dibb, Jack, Scheuer, Eric, Diskin, Glenn S, DiGangi, Joshua P, Bui, ThaoPaul, Dean-Day, Jonathan M, Thompson, Chelsea R, Peischl, Jeff, Ryerson, Thomas B, Bourgeois, Ilann, Daube, Bruce C, Commane, Róisín, Wofsy, Steven C

“…In situ measurements of aerosol microphysical, chemical, and optical properties were made during global-scale flights from 2016–2018 as part of the Atmospheric…”
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Seasonal controls on the exchange of carbon and water in an Amazonian rain forest by Hutyra, Lucy R., Munger, J. William, Saleska, Scott R., Gottlieb, Elaine, Daube, Bruce C., Dunn, Allison L., Amaral, Daniel F., de Camargo, Plinio B., Wofsy, Steven C.

“…The long‐term resilience of Amazonian forests to climate changes and the fate of their large stores of organic carbon depend on the ecosystem response to…”
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Missing OH Reactivity in the Global Marine Boundary Layer by Thames, Alexander B., Brune, William H., Miller, David O., Allen, Hannah M., Apel, Eric C., Blake, Donald R., Bui, T. Paul, Commane, Roisin, Crounse, John D., Daube, Bruce C., Diskin, Glenn S., DiGangi, Joshua P., Elkins, James W., Hall, Samuel R., Hanisco, Thomas F., Hannun, Reem A, Hintsa, Eric, Hornbrook, Rebecca S., Kim, Michelle J., McKain, Kathryn, Moore, Fred L., Nicely, Julie M., Peischl, Jeffrey, Ryerson, Thomas B., Clair, Jason M. St, Sweeney, Colm, Teng, Alex, Thompson, Chelsea R., Ullmann, Kirk, Wennberg, Paul O., Wolfe, Glenn M.

“…The hydroxyl radical (OH) reacts with thousands of chemical species in the atmosphere, initiating their removal and the chemical reaction sequences that…”
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Atmospheric observations of Arctic Ocean methane emissions up to 82° north by Kort, E. A., Wofsy, S. C., Daube, B. C., Diao, M., Elkins, J. W., Gao, R. S., Hintsa, E. J., Hurst, D. F., Jimenez, R., Moore, F. L., Spackman, J. R., Zondlo, M. A.

“…Uncertainty in the future atmospheric burden of methane—a potent greenhouse gas—represents an important challenge to the development of realistic climate…”
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Methane emissions from Alaska in 2012 from CARVE airborne observations by Chang, Rachel Y.-W., Miller, Charles E., Dinardo, Steven J., Karion, Anna, Sweeney, Colm, Daube, Bruce C., Henderson, John M., Mountain, Marikate E., Eluszkiewicz, Janusz, Miller, John B., Bruhwiler, Lori M. P., Wofsy, Steven C.

“…We determined methane (CH ₄) emissions from Alaska using airborne measurements from the Carbon Arctic Reservoirs Vulnerability Experiment (CARVE). Atmospheric…”
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Carbon dioxide column abundances at the Wisconsin Tall Tower site by Washenfelder, R. A., Toon, G. C., Blavier, J.-F., Yang, Z., Allen, N. T., Wennberg, P. O., Vay, S. A., Matross, D. M., Daube, B. C.

“…We have developed an automated observatory for measuring atmospheric column abundances of CO2 and O2 using near‐infrared spectra of the Sun obtained with a…”
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Heterogeneity and Chemical Reactivity of the Remote Troposphere Defined By Aircraft Measurements - Corrected by Guo, Hao, Flynn, Clare M, Prather, Michael J, Strode, Sarah A, Steenrod, Stephen D, Emmons, Louisa, Lacey, Forrest, Lamarque, Jean-Francois, Fiore, Arlene M, Correa, Gus, Murray, Lee T, Wolfe, Glenn M, Clair, Jason Michael St, Kim, Michelle, Crounse, John, Diskin, Glenn, Digangi, Joshua, Daube, Bruce C, Commane, Roisin, McKain, Kathryn, Peischl, Jeff, Ryerson, Thomas B, Thompson, Chelsea, Hanisco, Thomas F, Blake, Donald, Blake, Nicola J, Apel, Eric C, Hornbrook, Rebecca S, Elkins, James W, Hintsa, Eric J, Moore, Fred L, Wofsy, Steven

“…The NASA Atmospheric Tomography (ATom) mission built a photochemical climatology of air parcels based on in situ measurements with the NASA DC-8 aircraft along…”
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A near-field tool for simulating the upstream influence of atmospheric observations: The Stochastic Time-Inverted Lagrangian Transport (STILT) model by Lin, J. C., Gerbig, C., Wofsy, S. C., Andrews, A. E., Daube, B. C., Davis, K. J., Grainger, C. A.

“…We introduce a tool to determine surface fluxes from atmospheric concentration data in the midst of distributed sources or sinks over land, the Stochastic…”
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Airborne and ground-based observations of a weekend effect in ozone, precursors, and oxidation products in the California South Coast Air Basin by Pollack, I. B., Ryerson, T. B., Trainer, M., Parrish, D. D., Andrews, A. E., Atlas, E. L., Blake, D. R., Brown, S. S., Commane, R., Daube, B. C., de Gouw, J. A., Dubé, W. P., Flynn, J., Frost, G. J., Gilman, J. B., Grossberg, N., Holloway, J. S., Kofler, J., Kort, E. A., Kuster, W. C., Lang, P. M., Lefer, B., Lueb, R. A., Neuman, J. A., Nowak, J. B., Novelli, P. C., Peischl, J., Perring, A. E., Roberts, J. M., Santoni, G., Schwarz, J. P., Spackman, J. R., Wagner, N. L., Warneke, C., Washenfelder, R. A., Wofsy, S. C., Xiang, B.

“…Airborne and ground‐based measurements during the CalNex (California Research at the Nexus of Air Quality and Climate Change) field study in May/June 2010 show…”
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Methane retrieval from MethaneAIR using the CO2 proxy approach: a demonstration for the upcoming MethaneSAT mission by Christopher Chan Miller, Roche, Sébastien, Wilzewski, Jonas S, Liu, Xiong, Chance, Kelly, Souri, Amir H, Conway, Eamon, Luo, Bingkun, Samra, Jenna, Hawthorne, Jacob, Sun, Kang, Staebell, Carly, Chulakadabba, Apisada, Sargent, Maryann, Benmergui, Joshua S, Franklin, Jonathan E, Daube, Bruce C, Yang, Li, Laughner, Joshua L, Baier, Bianca C, Gautam, Ritesh, Omara, Mark, Wofsy, Steven C

“…Reducing methane (CH4) emissions from the oil and gas (O&G) sector is crucial for mitigating climate change in the near term. MethaneSAT is an upcoming…”
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