Search Results - "Hall, Bradley D."

Constraining the carbon tetrachloride (CCl4) budget using its global trend and inter-hemispheric gradient by Liang, Qing, Newman, Paul A., Daniel, John S., Reimann, Stefan, Hall, Bradley D., Dutton, Geoff, Kuijpers, Lambert J. M.

“…Carbon tetrachloride (CCl4) is a major anthropogenic ozone‐depleting substance and greenhouse gas and has been regulated under the Montreal Protocol. However,…”
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Oceanic distributions and emissions of short-lived halocarbons by Butler, James H., King, Daniel B., Lobert, Jürgen M., Montzka, Stephen A., Yvon-Lewis, Shari A., Hall, Bradley D., Warwick, Nicola J., Mondeel, Debra J., Aydin, Murat, Elkins, James W.

“…Using data from seven cruises over a 10‐year span, we report marine boundary layer mixing ratios (i.e., dry mole fractions as pmol mol−1 or ppt), degrees of…”
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Gravimetrically prepared carbon dioxide standards in support of atmospheric research by Hall, Bradley D, Crotwell, Andrew M, Miller, Benjamin R, Schibig, Michael, Elkins, James W

“…We have explored a one-step method for gravimetric preparation of CO2-in-air standards in aluminum cylinders. We consider both adsorption to stainless steel…”
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3-D Atmospheric Modeling of the Global Budget of N2O and its Isotopologues for 1980-2019: The Impact of Anthropogenic Emissions by Liang, Qing, Nevison, Cynthia, Dlugokencky, Ed, Hall, Bradley D, Dutton, Geoff

“…Nitrous oxide (N2O) is the third most important anthropogenic greenhouse gas (GHG) and a major ozone-depleting substance (ODS). Its main sources include…”
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A decline in global CFC-11 emissions during 2018−2019 by Montzka, Stephen A., Dutton, Geoffrey S., Portmann, Robert W., Chipperfield, Martyn P., Davis, Sean, Feng, Wuhu, Manning, Alistair J., Ray, Eric, Rigby, Matthew, Hall, Bradley D., Siso, Carolina, Nance, J. David, Krummel, Paul B., Mühle, Jens, Young, Dickon, O’Doherty, Simon, Salameh, Peter K., Harth, Christina M., Prinn, Ronald G., Weiss, Ray F., Elkins, James W., Walter-Terrinoni, Helen, Theodoridi, Christina

“…The atmospheric concentration of trichlorofluoromethane (CFC-11) has been in decline since the production of ozone-depleting substances was phased out under…”
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Gravimetric Standard Gas Mixtures for Global Monitoring of Atmospheric SF6 by Lim, Jeong Sik, Lee, Jinbok, Moon, Dongmin, Kim, Jin Seog, Lee, Jeongsoon, Hall, Bradley D

“…In this study, standard gas mixtures of SF6 in synthetic air were gravimetrically developed as a suite consisting of 6 mixtures with mole fractions of SF6…”
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Revision of the World Meteorological Organization Global Atmosphere Watch (WMO/GAW) CO2 calibration scale by Hall, Bradley D, Crotwell, Andrew M, Kitzis, Duane R, Mefford, Thomas, Miller, Benjamin R, Schibig, Michael F, Tans, Pieter P

“…The NOAA Global Monitoring Laboratory serves as the World Meteorological Organization Global Atmosphere Watch (WMO/GAW) Central Calibration Laboratory (CCL)…”
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Age of air from in situ trace gas measurements: insights from a new technique by Ray, Eric A, Moore, Fred L, Garny, Hella, Hintsa, Eric J, Hall, Bradley D, Dutton, Geoff S, Nance, David, Elkins, James W, Wofsy, Steven C, Pittman, Jasna, Daube, Bruce, Baier, Bianca C, Li, Jianghanyang, Sweeney, Colm

“…The age of air is an important transport diagnostic that can be derived from trace gas measurements and compared to global chemistry climate model output. We…”
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Gravimetric Standard Gas Mixtures for Global Monitoring of Atmospheric SF 6 by Lim, Jeong Sik, Lee, Jinbok, Moon, Dongmin, Kim, Jin Seog, Lee, Jeongsoon, Hall, Bradley D

“…In this study, standard gas mixtures of SF in synthetic air were gravimetrically developed as a suite consisting of 6 mixtures with mole fractions of SF…”
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Comparison of halocarbon measurements in an atmospheric dry whole air sample by Rhoderick, George C, Hall, Bradley D, Harth, Christina M, Kim, Jin Seog, Lee, Jeongsoon, Montzka, Stephen A, Mühle, Jens, Reimann, Stefan, Vollmer, Martin K, Weiss, Ray F

“…The growing awareness of climate change/global warming, and continuing concerns regarding stratospheric ozone depletion, will require continued measurements…”
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Considerable contribution of the Montreal Protocol to declining greenhouse gas emissions from the United States by Hu, Lei, Montzka, Stephen A., Lehman, Scott J., Godwin, David S., Miller, Benjamin R., Andrews, Arlyn E., Thoning, Kirk, Miller, John B., Sweeney, Colm, Siso, Caroline, Elkins, James W., Hall, Bradley D., Mondeel, Debra J., Nance, David, Nehrkorn, Thomas, Mountain, Marikate, Fischer, Marc L., Biraud, Sébastien C., Chen, Huilin, Tans, Pieter P.

“…Ozone depleting substances (ODSs) controlled by the Montreal Protocol are potent greenhouse gases (GHGs), as are their substitutes, the hydrofluorocarbons…”
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Revision of the World Meteorological Organization Global Atmosphere Watch (WMO/GAW) CO 2 calibration scale by Hall, Bradley D., Crotwell, Andrew M., Kitzis, Duane R., Mefford, Thomas, Miller, Benjamin R., Schibig, Michael F., Tans, Pieter P.

“…The NOAA Global Monitoring Laboratory serves as the World Meteorological Organization Global Atmosphere Watch (WMO/GAW) Central Calibration Laboratory (CCL)…”
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Development of a Northern Continental Air Standard Reference Material by Rhoderick, George C, Kitzis, Duane R, Kelley, Michael E, Miller, Walter R, Hall, Bradley D, Dlugokencky, Edward J, Tans, Pieter P, Possolo, Antonio, Carney, Jennifer

“…The National Institute of Standards and Technology (NIST) recently began to develop standard mixtures of greenhouse gases as part of a broad program mandated…”
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U.S. emissions of HFC-134a derived for 2008-2012 from an extensive flask-air sampling network by Hu, Lei, Montzka, Stephen A., Miller, John B., Andrews, Aryln E., Lehman, Scott J., Miller, Benjamin R., Thoning, Kirk, Sweeney, Colm, Chen, Huilin, Godwin, David S., Masarie, Kenneth, Bruhwiler, Lori, Fischer, Marc L., Biraud, Sebastien C., Torn, Margaret S., Mountain, Marikate, Nehrkorn, Thomas, Eluszkiewicz, Janusz, Miller, Scot, Draxler, Roland R., Stein, Ariel F., Hall, Bradley D., Elkins, James W., Tans, Pieter P.

“…U.S. national and regional emissions of HFC‐134a are derived for 2008–2012 based on atmospheric observations from ground and aircraft sites across the U.S. and…”
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UAS Chromatograph for Atmospheric Trace Species (UCATS) – a versatile instrument for trace gas measurements on airborne platforms by Hintsa, Eric J, Moore, Fred L, Hurst, Dale F, Dutton, Geoff S, Hall, Bradley D, Nance, J. David, Miller, Ben R, Montzka, Stephen A, Wolton, Laura P, McClure-Begley, Audra, Elkins, James W, Hall, Emrys G, Jordan, Allen F, Rollins, Andrew W, Thornberry, Troy D, Watts, Laurel A, Thompson, Chelsea R, Peischl, Jeff, Bourgeois, Ilann, Ryerson, Thomas B, Daube, Bruce C, Gonzalez Ramos, Yenny, Commane, Roisin, Santoni, Gregory W, Pittman, Jasna V, Wofsy, Steven C, Kort, Eric, Diskin, Glenn S, Bui, T. Paul

“…UCATS (the UAS Chromatograph for Atmospheric Trace Species) was designed and built for observations of important atmospheric trace gases from unmanned aircraft…”
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Atmospheric histories and global emissions of halons H‐1211 (CBrClF2), H‐1301 (CBrF3), and H‐2402 (CBrF2CBrF2) by Vollmer, Martin K., Mühle, Jens, Trudinger, Cathy M., Rigby, Matthew, Montzka, Stephen A., Harth, Christina M., Miller, Benjamin R., Henne, Stephan, Krummel, Paul B., Hall, Bradley D., Young, Dickon, Kim, Jooil, Arduini, Jgor, Wenger, Angelina, Yao, Bo, Reimann, Stefan, O'Doherty, Simon, Maione, Michela, Etheridge, David M., Li, Shanlan, Verdonik, Daniel P., Park, Sunyoung, Dutton, Geoff, Steele, L. Paul, Lunder, Chris R., Rhee, Tae Siek, Hermansen, Ove, Schmidbauer, Norbert, Wang, Ray H. J., Hill, Matthias, Salameh, Peter K., Langenfelds, Ray L., Zhou, Lingxi, Blunier, Thomas, Schwander, Jakob, Elkins, James W., Butler, James H., Simmonds, Peter G., Weiss, Ray F., Prinn, Ronald G., Fraser, Paul J.

“…We report ground‐based atmospheric measurements and emission estimates for the halons H‐1211 (CBrClF2), H‐1301 (CBrF3), and H‐2402 (CBrF2CBrF2) from the AGAGE…”
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A comprehensive estimate for loss of atmospheric carbon tetrachloride (CCl 4 ) to the ocean by Butler, James H, Yvon-Lewis, Shari A, Lobert, Jurgen M, King, Daniel B, Montzka, Stephen A, Bullister, John L, Koropalov, Valentin, Elkins, James W, Hall, Bradley D, Hu, Lei, Liu, Yina

“…Extensive undersaturations of carbon tetrachloride (CCl4) in Pacific, Atlantic, and Southern Ocean surface waters indicate that atmospheric CCl4 is consumed in…”
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1,2-Dichlorohexafluoro-cyclobutane (1,2-c‑C4F6Cl2, R‑316c) a Potent Ozone Depleting Substance and Greenhouse Gas: Atmospheric Loss Processes, Lifetimes, and Ozone Depletion and Global Warming Potentials for the (E) and (Z) Stereoisomers by Papadimitriou, Vassileios C, McGillen, Max R, Smith, Shona C, Jubb, Aaron M, Portmann, Robert W, Hall, Bradley D, Fleming, Eric L, Jackman, Charles H, Burkholder, James B

“…The atmospheric processing of (E)- and (Z)-1,2-dichlorohexafluoro-cyclobutane (1,2-c-C4F6Cl2, R-316c) was examined in this work as the ozone depleting (ODP)…”
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3‐D Atmospheric Modeling of the Global Budget of N 2 O and Its Isotopologues for 1980–2019: The Impact of Anthropogenic Emissions by Liang, Qing, Nevison, Cynthia, Dlugokencky, Ed, Hall, Bradley D., Dutton, Geoff

“…Abstract Nitrous oxide (N 2 O) is the third most important anthropogenic greenhouse gas and a major ozone‐depleting substance. Its main sources include…”
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Revision of the World Meteorological Organization Global Atmosphere Watch CO.sub.2 calibration scale by Hall, Bradley D, Crotwell, Andrew M, Kitzis, Duane R, Mefford, Thomas, Miller, Benjamin R, Schibig, Michael F, Tans, Pieter P

“…The NOAA Global Monitoring Laboratory serves as the World Meteorological Organization Global Atmosphere Watch (WMO/GAW) Central Calibration Laboratory (CCL)…”
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