A42C:
Improving Emissions Through Observations V

Thursday, 18 December 2014: 10:20 AM-12:20 PM
Chairs:  Gregory J Frost1, Monika Kopacz2, Ray Bambha3 and Hope A Michelsen3, (1)NOAA, Earth System Research Laboratory, Boulder, CO, United States(2)NOAA, Boulder, CO, United States(3)Sandia National Laboratories, Albuquerque, NM, United States
Primary Conveners:  Gregory J Frost, NOAA, Earth System Research Laboratory, Boulder, CO, United States; Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States
Co-conveners:  Monika Kopacz, NOAA, Climate Program Office, Silver Spring, MD, United States, Ray Bambha, Sandia National Labs, Livermore, CA, United States and Hope A Michelsen, Sandia Natl Lab, Livermore, CA, United States
OSPA Liaisons:  Gregory J Frost, NOAA, Earth System Research Laboratory, Boulder, CO, United States

Abstracts Submitted to this Session:

10:20 AM
 
Long-term Trends and Confidence in Global Natural Gas Fugitive Emissions Rates Based on δ13C-CH4
Stefan Schwietzke1, Owen Sherwood2, Pieter P Tans3, Sylvia Englund Michel4, John B Miller5, Edward J Dlugokencky5, W. Michael Griffin6 and Lori Bruhwiler1, (1)NOAA/ESRL/GMD, Boulder, CO, United States, (2)University of Colorado at Boulder, Institute of Arctic and Alpine Research, Boulder, CO, United States, (3)NOAA/Earth System Research Lab, Boulder, CO, United States, (4)University of Colorado at Boulder, Boulder, CO, United States, (5)NOAA/ESRL, Boulder, CO, United States, (6)Carnegie Mellon University, Pittsburgh, PA, United States
10:35 AM
 
Isotopic constraints on the decadal trends of global methane emissions favor increasing fossil fuel emissions over recent decades
Chris L Butenhoff1, Andrew L Rice1, Florian H Roeger1, Doaa G Teama1, Aslam Khan Khalil2 and Reinhold Rasmussen3, (1)Portland State University, Portland, OR, United States, (2)Portland State Univ, Portland, OR, United States, (3)Oregon Health & Science University, Environmental and Biomolecular Systems, Beaverton, OR, United States
10:50 AM
 
Contribution of Oil and Gas Production to Atmospheric CH4 in the South-Central United States: Reconciling Bottom-up and Top-down Estimates
Zhen Liu1, Joseph P Pinto2, Alexander J. Turner3, Lori Bruhwiler4, Daven K Henze5, Jerome F Brioude6, Nicolas Bousserez5, Khachik Sargsyan1, Cosmin Safta1, Habib N Najm1, Brian W LaFranchi7, Ray Bambha1 and Hope A Michelsen1, (1)Sandia National Laboratories, Livermore, CA, United States, (2)U. S. EPA/NCEA, Durham, NC, United States, (3)Harvard University, Cambridge, MA, United States, (4)NOAA/ESRL/GMD, Boulder, CO, United States, (5)University of Colorado at Boulder, Boulder, CO, United States, (6)CIRES/CU NOAA, Boulder, CO, United States, (7)Sandia National Laboratories, Albuquerque, NM, United States
11:05 AM
 
Quantifying the Industrial Facility-Level Emission Rate of Methane in Various Segments of the Natural Gas Industry
Scott C. Herndon1, Joseph R Roscioli1, Tara Irene Yacovitch1, Cody R Floerchinger1, Austin Mitchell2, Daniel S Tkacik2, R Subramanian2, Allen L Robinson2, David M Martinez3, Timothy L Vaughn3, Laurie Williams3, Dan Zimmerle3 and Anthony Marchese3, (1)Aerodyne Research Inc, Billerica, MA, United States, (2)Carnegie Mellon University, Pittsburgh, PA, United States, (3)Colorado State University, Fort Collins, CO, United States
11:20 AM
 
Global Emissions of Refrigerants HCFC-22 and HFC-134a: Unforeseen Seasonal Contributions
Bin Xiang1, Prabir Kumar Patra2, Stephen A Montzka3, Scot M Miller1, James W Elkins4, Fred Moore5, Elliot L Atlas6, Benjamin R Miller7, Ronald G Prinn8 and Steven C Wofsy9, (1)Harvard University, Cambridge, MA, United States, (2)Res. Inst. for Global Change, Yokohama, Japan, (3)NOAA OAR ESRL GMD, Boulder, CO, United States, (4)NOAA, Boulder, CO, United States, (5)NOAA/ESRL, Boulder, CO, United States, (6)University Miami, Miami, FL, United States, (7)Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, (8)MIT, Cambridge, MA, United States, (9)Harvard Univ, Cambridge, MA, United States
11:35 AM
 
Are National HFC Inventory Reports Accurate?
Mark F Lunt1, Matthew L Rigby1, Anita Ganesan1, Alistair Manning2, Simon O'Doherty1, Ronald G Prinn3, Takuya Saito4, Christina M Harth5, Jens Muhle5, Ray F Weiss5, Peter Salameh5, Tim Arnold5, Yoko Yokouchi4, Paul B Krummel6, Paul Steele6, Paul Fraser6, Shanlan Li7,8, Sunyoung Park8, Jooil Kim5, Stefan Reimann9, Martin K Vollmer9, Chris Lunder10, Ove Hermansen10, Norbert Schmidbauer10, Dickon Young1 and Peter G Simmonds1, (1)University of Bristol, Bristol, United Kingdom, (2)UK Meteorological Office, Exeter, United Kingdom, (3)MIT, Cambridge, MA, United States, (4)National Institute for Environmental Studies, Tsukuba, Japan, (5)University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, (6)Commonwealth Scientific and Industrial Research Organisation, Centre for Australian Weather and Climate Research, Aspendale, Australia, (7)Seoul National University, Seoul, South Korea, (8)Kyungpook National University, Department of Oceanography, Sangju, South Korea, (9)Empa, Duebendorf, Switzerland, (10)Norwegian Institute for Air Research, Kjeller, Norway
11:50 AM
 
Solving the carbon tetrachloride (CCl4) budget mystery using surface observations
Qing Liang1, Paul A. Newman2, John S Daniel3, Stefan Reimann4, Brad David Hall3, Geoffrey S Dutton5 and Lambert J. M. Kuijpers6, (1)USRA GESTAR/NASA GSFC, Greenbelt, MD, United States, (2)NASA GSFC, Code 610, Greenbelt, MD, United States, (3)NOAA Boulder, Boulder, CO, United States, (4)Empa, Duebendorf, Switzerland, (5)NOAA, Boulder, CO, United States, (6)Technical University Eindhoven, Eindhoven, Netherlands
12:05 PM
 
Atmosphere-derived National Emissions of Ozone Depleting Substances and Substitutes for the United States
Lei Hu1,2, Stephen A Montzka2, John B Miller1,2, Arlyn E Andrews2, Benjamin R Miller1,2, Scott Lehman3, Dave Godwin4, Kirk W Thoning2, Colm Sweeney1,2, Huilin Chen5, Marc Laurenz Fischer6, Sebastien Biraud6, Margaret S Torn7, Marikate E Mountain8, Thomas Nehrkorn9, Janusz Eluszkiewicz9, Eri Saikawa10, Brad David Hall2, James W Elkins2 and Pieter P Tans2, (1)Cooperative Institute for Research in Environmental Sciences, Boulder, CO, United States, (2)NOAA/ESRL GMD, Boulder, CO, United States, (3)University of Colorado at Boulder, INSTAAR, Boulder, United States, (4)US Environmental Protection Agency, Washington DC, United States, (5)Centre for Isotope Research, Groningen, 9747, Netherlands, (6)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (7)Berkeley Lab/UC Berkeley, Berkeley, CA, United States, (8)Atmospheric and Environmental Research, Inc., Lexington, MA, United States, (9)Atmospheric and Environmental Research, Lexington, MA, United States, (10)Emory University, Atlanta, GA, United States
 
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