Earth Sciences Division (ESD) Department of Energy (DOE) Lawrence Berkeley National Laboratory (LBNL)

Earth Sciences Division Staff: Sebastien C. Biraud

Sebastien Biraud

Sebastien C. Biraud

Research Scientist

Climate Sciences Department



Phone: 510-486-6084

Fax: 510-486-7897


Biographical Summary

My research focuses primarily on improving our understanding of the Carbon cycle. In particular, I built and deploy instruments to measure carbon exchange between the land and the atmosphere at a site located in the Southern Great Plains of the US. This study site is part of the ARM (Atmospheric Radiation Measurements) Climate Research Facility (ACRF). The measurements and analysis activities that I contribute to include: (1) carbon eddy flux systems; (2) continuous high-accuracy CO2 measurements and CO2 isotopes collection; (3) aircraft and tower flask collection; (4) continuous high-accuracy CO measurements; (5) continuous high-accuracy aircraft-based CO2 measurements.


  • 2000: Ph.D.: "Towards the regionalization of sources and sinks of greenhouse gases: analysis of the synoptic variability at Mace Head observatory, Ireland".
  • 1995: M.S.: Physical methods in remote sensing, University of Paris 7, France

Professional Experience

  • 2003-present: Research Scientist, Lawrence Berkeley National Laboratory, USA (Supervisor: Margaret Torn).
    • Precise measurements of trace gas species (CO2, CH4, CO, N2O) and isotopes (13CO2).
    • Ameriflux QA/QC lab technical lead.
  • 2001 - 2003: Postdoctoral fellow at University of California, Berkeley, USA with Inez Fung.
    • Modeling of atmospheric transport using NCAR MATCH model.
    • Impact of climate change on aviation in North America.
  • 2000 - 2001: Postdoctoral fellow at University of Galway, Ireland with professor Gerard Jennings.
    • Measurements of radon-222 efflux in Ireland.
    • Regionalization of the Irish greenhouse gas emissions.
    • Responsible for the back trajectory model at LSCE (HYSPLIT4).
  • 1997 - 2000: Ph.D. at CEA/LSCE (Commissariat à l'Energie Atomique/Laboratoire des Sciences du Climat et de l'Environnement) under the supervision of Philippe Ciais and Patrick Monfray.
    • Management of field campaigns,
    • Monitoring of atmospheric concentrations at Mace Head observatory (measurements, calibration, data quality),
    • Estimation of greenhouse gas emission fluxes,
    • Participation in international meetings,
    • Annual reports and scientific publications.
  • 1996 - 1997: High frequency measurements campaign of CO2 and isotopes 13C and 18O at the Mace
    • Head atmospheric field research station (Ireland), in co-operation with Galway University College (Ireland) and Centre des Faibles Radioactivités (France) as part of the ESCOBA European project (European Study of Carbon in Ocean, Biosphere and Atmosphere).
  • July to September 1995:  Forest Remote Sensing at Kourou (French Guyana) ENGREF Laboratory: "Contribution of middle infrared wavelengths to mapping deforestation along Maroni river".
  • March to June 1995:  Space Oceanography at Brest (France) IFREMER Laboratory: "Wind/wave structures in tropical cyclones observed with micro-wave instruments". Doc. Trav. DRO-OS, vol. 95-11, 1995


  • Irish Environmental Protection Agency Post-Doctoral Fellowship, 2000-2001
  • Commissariat à l’Energie Atomique Doctoral Fellowship, 1996-2000

Current Grant, Principal Investigator

  • ARM Airborne Carbon Measurements (ARM-ACME) in the Southern Great Plains, 2008-2014
  • ARM infrastructure in the Southern Great Plains, 2012-2014

Special Skills

  • Computer skills: proficiency in programming (SHELL, PERL, C, FORTRAN, IDL, HTML).
  • Native language: FRENCH.
  • Other languages: ENGLISH (full working knowledge).
  • SPANISH (minimal working knowledge).
  • Hobbies: Flying (French private license), Scuba diving (divemaster).