Assistant Professor of Climate and Space Sciences and Engineering, Earth and Environmental Sciences
About
Research Interests:
- Carbon cycle-climate interactions
- Remote sensing of atmospheric trace gases and vegetation properties
- Earth System modeling
- Atmospheric tracer transport
Professional Service:
Co-Chair for North American Carbon Project (NACP) Principal Investigator’s Meeting, March 2020.
Co-Chair for Community Earth System Model (CESM) Biogeochemistry Working Group, September 2017-present.
Atmospheric lead for International Land Model Benchmarking (ILAMB) project.
Member, NASA’s Orbiting Carbon Observatory (OCO) Science Team, March 2015 – present.
Awards:
Kavli Fellow (National Academy of Sciences), 2018
NASA Group Achievement Award (OCO-2 Science Team), 2018
NOAA Climate and Global Change Postdoctoral Fellowship, 2011-2013
American Association of University Women dissertation fellowship, 2009-2010
NSF Graduate Research Fellowship, 2006-2009
Vito Vanoni Graduate Fellowship, 2004-2005
Selected Publications:
Keppel-Aleks, G., J. T. Randerson, K. Lindsay, B. B. Stephens, J. K. Moore, S. C. Doney, P. E. Thornton, N. M. Mahowald, F. M. Hoffman, C. Sweeney, P. P. Tans, P. O. Wennberg, S. C. Wofsy: Atmospheric carbon dioxide variability in the Community Earth System Model: Evaluation and transient dynamic during the 20th and 21st centuries, J. Climate, 26, 4447-4475, 2013.
Keppel-Aleks, G., P. O. Wennberg, C. W. O’Dell, and D. Wunch: Towards constraints on fossil fuel emis- sions from total column carbon dioxide, Atmos. Chem. Phys. 13, 4349-4357, 2013.
Keppel-Aleks, G., P.O. Wennberg, T. Schneider, R.A. Washenfelder, D. Wunch, G.C. Toon, R.J. Andres, J.-F. Blavier, B. Connor, K.J. Davis, A.R. Desai, J. Messerschmidt, J. Notholt, C.M. Roehl, V. Sherlock, B.B. Stephens, S.A. Vay, and S.C. Wofsy: The imprint of surface fluxes and atmospheric transport on variations in total column carbon dioxide, Biogeosciences, 9, 875–891, 2012.
Wunch, D., P.O. Wennberg, G.C. Toon, B.J. Connor, B. Fisher, G.B. Osterman, C. Frankenberg, L. Man- drake, C. O’Dell, P. Ahonen, S.C. Biraud, R. Casano, N. Cressie, D. Crisp, N.M. Deutscher, A. Eldering, M.L. Fisher, D.W.T. Griffith, M. Gunson, P. Heikkinen, G. Keppel-Aleks, E. Kyro, R. Lindenmaier, R. Macatangay, J. Messerschmidt, C.E. Miller, I. Morino, J. Notholt, F.A. Oyafuso, M. Rettinger, J. Robin- son, C.M. Roehl, R.J. Salawitch, V. Sherlock, K. Strong, R. Sussmann, T. Tanaka, D.R. Thompson, O. Uchino, T. Warneke, and S.C. Wofsy: A method for evaluating bias in global measurements of CO2 from space, Atmos. Chem. Phys, 11, 12317–12337, 2011.
Keppel-Aleks, G., P.O. Wennberg, and T. Schneider: Sources of variations in total column carbon dioxide, Atmos. Chem. Phys., 11, 3581–3593, 2011.
Wunch, D., G.C. Toon, P.O. Wennberg, S.C. Wofsy, B. B. Stephens, M.L. Fischer, O. Uchino, J.B. Abshire, P. Bernath, S.C. Biraud, J.F. Blavier, C. Boone, K.P. Bowman, E.V. Browell, T. Campos, B.J. Connor, B.C. Daube, N.M. Deutscher, M. Diao, J.W. Elkins, C. Gerbig, E. Gottlieb, D.W.T. Griffith, D.F. Hurst, R. Jimenez, G. Keppel-Aleks, E. A. Kort, R. Macatangay, T. Machida, H. Matsueda, F. Moore, I. Morino, S. Park, J. Robinson, C.M. Roehl, Y. Sawa, V. Sherlock, C. Sweeney, T. Tanaka, and M.A. Zondlo: Calibration of the Total Carbon Column Observing Network using aircraft profile data, Atmos. Meas. Tech., 3, 1351–1362, 2010.
Wunch, D., P.O. Wennberg, G.C. Toon, G. Keppel-Aleks, Y.G. Yavin: Emissions of greenhouse gases from a North American megacity, Geophys. Res. Lett., 36, L15810, 2009.
Keppel-Aleks, G., G.C. Toon, P.O. Wennberg, N.M. Deutscher: Reducing the impact of source brightness fluctuations on spectra obtained by Fourier Transform Spectrometry, Appl. Optics, 46, 4774–4779, 2007.
Yang, Z., R.A. Washenfelder, G. Keppel-Aleks, N.Y. Krakauer, J.T. Randerson, P.P. Tans, C. Sweeney, P.O. Wennberg: New constraints on Northern Hemisphere growing season net flux, Geophys. Res. Lett, 34, L12807, 2007.
