Sanam Vardag

Dr. Sanam Vardag
Position Senior Scientist
Address Im Neuenheimer Feld 229
Room 330
Phone +49 6221 54-6511
Group Arbeitsgruppe Fernerkundung der Atmosphäre

Research interests

  • Budgeting greenhouse gases in the atmosphere 
  • Simulating atmospheric transport on scales from urban over regional to global
  • Designing Observing System Simulation Experiments (OSSE)
  • Measuring CO2 and its isotopes using in-situ sensors


  • 09/2020 – present: Senior Scientist, Institute of Environmental Physics, University of Heidelberg, Germany
  • 04/2017 - 08/2020: Executive manager of the Heidelberg Center for the Environment (HCE), University of Heidelberg, Germany
  • 01/2013 - 04/2017: Research Associate, Institute of Environmental Physics, University of Heidelberg, Germany
  • 05/2016: PhD in Physics “Greenhouse gas measurments with a FTIR spectrometer” (final grade: Summa cum laude) from University of Heidelberg, Germany
  • 03/2011 - 09/2012: Master of Science, Physics, University of Heidelberg, Germany
  • 08/2008 - 04/2009: Università Tor Vergata, Rome, Italy (Erasmus semester)
  • 09/2007 - 03/2011: Bachelor of Science, Physics, University of Heidelberg, Germany

Selected other activities and awards

  • 11/2021 Teaching award by the Faculty of Physics and Astronomy
  • 06/2021 - today: Member of the ICOS Science programme comittee
  • 09/2020 - today: Member of the Supervisory Board of Heidelberger Energie Genossenschaft
  • 11/2017: Environmental Award of the Viktor and Sigrid Dulger Foundation for an outstanding scientific dissertation, Heidelberg, Germany
  • 09/2014-09/2019: Press spokesperson and active member of the Heidelberg university group Amnesty International
  • 06/2007: Pierre de Coubertin Award, Usingen, Germany, Award for special commitment in honorary office combined with fair attitude in sports


  • Vardag, S. N., Hammer, S., O'Doherty, S., Spain, T. G., Wastine, B., Jordan, A., and Levin, I.: Comparisons of continuous atmospheric CH4, CO2 and N2O measurements – results from a travelling instrument campaign at Mace Head, Atmos. Chem. Phys., 14, 8403–8418,, 2014.
  • Vardag, S. N., Hammer, S., Sabasch, M., Griffith, D. W. T., and Levin, I.: First continuous measurements of δ18O-CO2 in air with a Fourier transform infrared spectrometer, Atmos. Meas. Tech., 8, 579–592,, 2015.
  • Vardag, S. N., Gerbig, C., Janssens-Maenhout, G., and Levin, I.: Estimation of continuous anthropogenic CO2: model-based evaluation of CO2, CO, δ13C(CO2) and Δ14C(CO2) tracer methods, Atmos. Chem. Phys., 15, 12705–12729,, 2015.
  • Vardag, S. N., Hammer, S., and Levin, I.: Evaluation of 4 years of continuous δ13C(CO2) data using a moving Keeling plot method, Biogeosciences, 13, 4237–4251,, 2016.
  • Griffith, D. W. T., Pöhler, D., Schmitt, S., Hammer, S., Vardag, S. N., and Platt, U.: Long open-path measurements of greenhouse gases in air using near-infrared Fourier transform spectroscopy, Atmos. Meas. Tech., 11, 1549–1563,, 2018.
  • SN Vardag and S Lautenbach (2018): The Value of Detours. In: R Westerholt, F-B Mocnik, and A Zipf (eds.), Proceedings of the 1st Workshop on Platial Analysis (PLATIAL’18), pp. 61–65
  • Ghasemifard, H.; Vogel, F.R.; Yuan, Y.; Luepke, M.; Chen, J.; Ries, L.; Leuchner, M.; Schunk, C.; Noreen Vardag, S.; Menzel, A. Pollution Events at the High-Altitude Mountain Site Zugspitze-Schneefernerhaus (2670 m a.s.l.), Germany. Atmosphere 2019, 10, 330.