• Telephone: 858-822-1642
• Email: lwelp.ucsd.edu
• Location: 215 Vaughan Hall

Lisa is conducting research on the stable oxygen isotope ratios from the CO₂ flask program. She is also working with collaborators to analyze net CO₂ fluxes in the northern tundra and boreal ecosystems over the past 20 years calculated from atmospheric inversion methods.

Lisa Welp CV

Education

• B.S., Indiana University
• Ph.D., California Institute of Technology

Selected Publications

• Welp, L.R., P.K. Patra, R.F. Keeling, R.R. Nemani, S.C. Piper, et al. (in preparation) Increasing CO₂ uptake from 1986 to 2007 in boreal ecosystems inferred from a time dependent CO₂ inversion.
• Welp, L.R., X. Lee, T. Griffis, X. Wen, W. Xiao, S. Li, X. Sun, Z. Hu and M. Val Martin (submitted to Global Biogeochemical Cycles) A meta-analysis of deuterium-excess in water vapor in the atmospheric surface layer in mid-latitudes.
• Welp, L.R., R.F. Keeling, H.A.J. Meijer, A.F. Bollenbacher, S.C. Piper, K. Yoshimura, R.J. Francey, C.E. Allison, and M. Wahlen (2011) Interannual variability in the oxygen isotopes of atmospheric CO₂ driven by El Niño, Nature, 477(7366), 579-582.
• Yi, C. et al. including L.R. Welp (2010) Climate control of terrestrial carbon exchange across biomes and continents, Environmental Research Letters, 5, 034007, doi:10.1088/1748-9326/5/3/034007.
• Xiao, W., X. Lee, T. Griffis, K. Kim, L. Welp, Q. Yu (2010) Comparing observed and modeled oxygen isotopic fluxes of CO₂ and H₂O over a soybean canopy, Journal of Geophysical Research, 115, G01004, doi:10.1029/2009JG001163.
• Lee, X., T.J. Griffis, J.M. Baker, K.A. Billmark, K. Kim, L.R. Welp: (2009) Canopy-scale kinetic fractionation of atmospheric carbon dioxide and water vapor isotopes, Global Biogeochemical Cycles, 23, GB1002, doi:10.1029/2008GB003331.
• Welp, L. R., X. Lee, K. Kim, T. Griffis, K. Bilmark and J. Baker, (2008) δ¹⁸O of water vapor, evapotranspiration and the sites of leaf water evaporation in a soybean canopy, Plant, Cell and Environment, 31, 1214-1228, doi:10.1111/j.1365-3040.2008.01826.x. (Selected for cover image.)
• Welp, L. R., J.T. Randerson and H. Liu, (2007) The sensitivity of carbon fluxes to spring warming and summer drought depends on plant functional type in boreal forest ecosystems, Agricultural and Forest Meteorology, 147, 172-185, doi:10.1016/j.agrformet.2007.07.010. (Second most downloaded article, October – December 2007.)
• Randerson, J.T., H. Liu, M.G. Flanner, S.D. Chambers, Y. Jin, P.G. Hess, G. Pfister, M.C. Mack, K.K. Treseder, L.R. Welp, F.S. Chapin, J.W. Harden, M.L. Goulden, E. Lyons, J.C. Neff, E.A.G. Schuur and C.S. Zender, (2006) The impact of boreal forest fire on climate warming, Science, 314, 1130-1132.
• Welp, L.R., J.T. Randerson and H. Liu, (2006) The effects of stand age on seasonal exchange of CO₂ and δ¹⁸O-CO₂ in boreal forest ecosystems of interior Alaska, Journal of Geophysical Research – Biogeosciences, 111, G03007, doi:10.1029/2005JG000126.
• Welp, L.R., J.T. Randerson, J.C. Finlay, S.P. Davydov, G.M. Zimova, A.I. Davydova and S.A. Zimov, (2005) A high-resolution time series of oxygen isotopes from the Kolyma River: Implications for the seasonal dynamics of discharge and basin-scale water use, Geophysical. Research Letters, 32, L14401, doi:10.1029/2005GL022857.