Jocelyn Turnbull


Full Name: Jocelyn Turnbull

Position: Radiocarbon Science Leader

Contact details

Email: J.Turnbull
Phone: +64-4-570 4726


1992: BSc, Chemistry/Mathematics; 1993: BSc(Hons), Chemistry; 2006: PhD, Geological Sciences

Areas of expertise

Radiocarbon: Aging of post-bomb materials
Radiocarbon: Atmospheric applications
Radiocarbon: Atmospheric distribution of radiocarbon
Radiocarbon: Carbon cycle
Radiocarbon: Fossil fuel emission quantification
Radiocarbon: High precision measurement
Radiocarbon: New preparation procedures
Radiocarbon: Ocean carbon exchange processes
Radiocarbon: Quality assurance
Radiocarbon: Radiocarbon information management
Radiocarbon: Urban anthropogenic emissions
Radiocarbon: modelling
Radiocarbon: tracking biological cycling

Professional activities

American Geophysical Union: Atmospheric Sciences: Member
European Union: Integrated Carbon Observing System: External auditor
World Meteorological Organisation: Global Atmospheric Watch: Member
The Royal Society of New Zealand: Member
Geological Society of New Zealand: Member
New Zealand Meteorological Society: Member
World Meteorological Organisation: Global Atmospheric Watch - Greenhouse Gas: Scientific Advisory Group

Major publications

LaFranchi, B.W.; McFarlane, K.J.; Miller, J.B.; Lehman, S.J.; Phillips, C.L.; Andrews, A.E.; Tans, P.P.; Chen, H.; Liu, Z.; Turnbull, J.C.; Xu, X.; Guilderson, T.P. 2016 Strong regional atmospheric 14C signature of respired CO2 observed from a tall tower over the midwestern United States. Journal of Geophysical Research. Biogeosciences, 121(8): 2275-2295; doi: 10.1002/2015JG003271

Turnbull, J.C.; Keller, E.D.; Baisden, W.T.; Brailsford, G.; Bromley, T.; Norris, M.W.; Zondervan, A. 2014 Atmospheric measurement of point source fossil CO2 emissions. Atmospheric chemistry and physics, 14(10): 50001-5014; doi: 10.5194/acp-14-5001-2014

Baisden, W.T.; Prior, C.A.; Chambers, D.M.; Canessa, S.; Phillips, A.; Bertrand, C.J.H.; Zondervan, A.; Turnbull, J.C.; Kaiser, J.; Bruhn, F. 2013 Rafter radiocarbon sample preparation and data flow : accommodating enhanced throughput and precision. p. 194-198; doi: 10.1016/j.nimb.2012.07.014 IN: Zondervan, A.; Prior, C.A.; Bruhn, F.; Sparks, R.J. (eds) Accelerator mass spectrometry : proceedings of the Twelfth International Conference on Accelerator Mass Spectrometry (AMS-12), Wellington, New Zealand, 20-25 March 2011. Amsterdam: Elsevier. Nuclear instruments and methods in physics research. Section B, Beam interactions with materials and atoms 294.

LaFranchi, B.W.; Petron, G.; Miller, J.B.; Lehman, S.J.; Andrews, A.E.; Dlugokencky, E.J.; Hall, B.; Miller, B.R.; Montzka, S.A.; Neff; W,; Novelli, P.C.; Sweeney, C.; Turnbull, J.C.; Wolfe, D.E.; Tans, P.P.; Gurney, K.R.; Guilderson, T.P. 2013 Constraints on emissions of carbon monoxide, methane, and a suite of hydrocarbons in the Colorado Front Range using observations of 14CO2. Atmospheric chemistry and physics, 13(21): 111101-11120; doi: 10.5194/acp-13-11101-2013

Miller, J.B.; Lehman, S.J.; Montzka, S.A.; Sweeney, C.; Miller, B.R.; Karion, A.; Wolak, C.; Dlugokencky, E.J.; Southon, J.R.; Turnbull, J.C.; Tans, P.P. 2012 Linking emissions of fossil fuel CO2 and other anthropogenic trace gases using atmospheric 14CO2. Journal of Geophysical Research. Atmospheres, 117: D08302; doi: 10.1029/2011JD017048

Turnbull, J.C.; Guenther, D.; Karion, A.; Sweeney, C.; Anderson, E.; Andrews, A.; Kofler, J.; Miles, N.; Newberger, T.; Richardson, S.; Tans, P. 2012 An integrated flask sample collection system for greenhouse gas measurements. Atmospheric Measurement Techniques, 5(9): 2321-2327

Lehman, S.; Miller, J.; Turnbull, J.C.; Southon, J.; Tans, P.; Sweeney, C. 2011 14CO2 measurements in the NOAA/ESRL Global Co-operative Sampling Network : an update on measurements and data quality. p. 315-318 IN: Brand, W.A. (ed.) 15th WMO/IAEA Meeting of Experts on Carbon Dioxide, other Greenhouse Gases and Related Tracers Measurement Techniques, Jena, Germany, 7-10 September 2009. Geneva: World Meteorological Organization

Turnbull, J.C.; Karion, A.; Fischer, M.L.; Faloona, I.; Guilderson, T.; Lehman, S.J.; Miller, B.R.; Miller, J.B.; Montzka, S.; Sherwood, T.; Saripalli, S.; Sweeney, C.; Tans, P.P. 2011 Assessment of fossil fuel carbon dioxide and other anthropogenic trace gas emissions from airborne measurements over Sacramento, California in spring 2009. Atmospheric chemistry and physics, 11: 705-721

Turnbull, J.C.; Tans, P.P.; Lehman, S.J.; Baker, D.; Conway, T.J.; Chung, Y.S.; Gregg, J.; Miller, J.B.; Southon, J.R.; Zhou, L-X. 2011 Atmospheric observations of carbon monoxide and fossil fuel CO2 emissions from East Asia. Journal of Geophysical Research. Atmospheres, 116: D24306; doi: 10.1029/2011JD016691

Turnbull, J.C.; Lehman, S.J.; Morgan, S.; Wolak, C. 2010 A new automated extraction system for 14C measurement for atmospheric CO2. Radiocarbon, 52(3): 1261-1269

Turnbull, J.C.; Rayner, P.; Miller, J.; Naegler, T.; Ciais, P.; Cozic, A. 2009 On the use of 14CO2 as a tracer for fossil fuel CO2 : quantifying uncertainties using an atmospheric transport model. Journal of Geophysical Research. Atmospheres, 114: D22302; doi: 10.1029/2009JD012308

Turnbull, J.C.; Miller, J.B.; Lehman, S.J.; Hurst, D.; Peters, W.; Tans, P.P.; Southon, J.; Montzka, S.A.; Elkins, J.W.; Mondeel, D.J.; Romashkin, P.A.; Elansky, N.; Skorokhod, A. 2008 Spatial distribution of Delta14CO2 across Eurasia : measurements from the TROICA-8 expedition. Atmospheric chemistry and physics, 8: 1-13

Turnbull, J.C.; Lehman, S.J.; Miller, J.B.; Sparks, R.J.; Southon, J.R.; Tans, P.P. 2007 A new high precision 14CO2 time series for North American continental air. Journal of Geophysical Research. Atmospheres, 112(11): D11310; doi: 10.1029/2006JD008184

Hughen, K.; Southon, J.; Lehman, S.; Bertrand, C.J.H.; Turnbull, J.C. 2006 Marine-derived 14C calibration and activity record for the past 50,000 years updated from the Cariaco Basin. Quaternary Science Reviews, 25(23/24): 3216-3227

Turnbull, J.C.; Miller, J.B.; Lehman, S.J.; Tans, P.P.; Sparks, R.J.; Southon, J. 2006 Comparison of 14CO2, CO, and SF6 as tracers for recently added fossil fuel CO2 in the atmosphere and implications for biological CO2 exchange. Geophysical Research Letters, 33(1): L01817; doi: 10.1029/2005GL024213

Hughen, K.; Lehman, S.; Southon, J.; Overpeck, J.; Marchal, O.; Herring, C.; Turnbull, J. 2004 14C activity and global carbon cycle changes over the past 50,000 years. Science, 303(5655): 202-207

Neff, J.C.; Townsend, A.R.; Gleixner, G.; Lehman, S.J.; Turnbull, J.C.; Bowman, W.D. 2002 Variable effects of nitrogen additions on the stability and turnover of soil carbon : letter. Nature, 419(6910): 915-917

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