Dipl.-Geogr. Elfrun Lehmann
Professional Experience
| 09/2006 - 08/2009 | Research Assistent | Institute of Meteorology, Freie Universität Berlin |
| 04/2006 - 08/2006 | Research Assistent | Institute of Geology, Freie Universität Berlin |
| 11/2004 - 03/2006 | Research Assistent | Potsdam-Institute for Climate Impact Research (PIK) |
| 2002 - 2004 | Research Assistent | George Mason University - COLA, Calverton, Maryland, USA |
| 2001 - 2002 | Research Assistent | George Mason University - Comprehensive Atmospheric Modeling Group - GMU, Fairfax, Virginia, USA |
| 1999 - 2000 | Project Scientist | Earth Tech Inc. - Atmospheric Science Group (now AECOM), Concord, Massachusetts, USA |
| 1995 - 1999 | Visiting Scientist | NOAA - Air Ressources Laboratory, Silver Spring, Maryland, USA |
| 1993 - 1995 | Consultant | UMEG (Center for Environmental Measurements, Instrumentation and Equipmental Safety), State of Baden-Württemberg, Karlsruhe |
| 1992 - 1995 | Research Assistent | Technical University of Karlsruhe, Institute of Geography & Geoecology, Karlsruhe |
| 1992 - 1995 | Consultant | Software Applications, NETCOMM, Karlsruhe |
Academic Career
| since 09/2009 | PhD student, Institute of Meteorology, Freie Universität Berlin |
| 2003 | Master of Science in Computational Science (Climate Dynamics), George Mason University - Center for Ocean-Land-Atmosphere Studies, Calverton (Maryland), USA. |
| 1991 | Diploma in Geography, (Geoecology & Meteorology), Johannes Gutenberg-University, Mainz. |
Research Interests
I use observations and/or models to examine physico-chemical processes in the area of air quality, bio-atmosphere interactions, and change and variability in the earth system. Currently, I focus on feedback processes in the climate-ocean system and how those are reflected in variations in earth rotation parameters.
Referenced in the following news item: Discovery Channel Link
Wissenschaftliche Veröffentlichungen
2012
Lehmann, E., and P. Névir, 2012: Uncertainties in relative atmospheric angular momentum computed from zonal winds in reanalysis data, J. Geophys. Res., 117, D09101, doi:10.1029/2011JD016658.
2009
Lehmann E., Hansen F., Ulbrich U., Névir P., Leckebusch G.C., 2009: Assessing the effect of the relative atmospheric angular momentum (AAM) on length-of-day (LOD) variations under climate warming, Geophysical Research Abstracts, Vol. 11, EGU2009-10520-1.2009.
Lehmann E., Götzsch A., Ulbrich U., Leckbusch G.C., Névir P., Thomas M., 2009: Long-term ERP time series as indicators for global climate variability and climate change, Geophysical Research Abstracts, Vol. 11, EGU2009-9084-1.
2008
Lehmann, E., G. C. Leckebusch, U. Ulbrich, P. Névir, 2008: Effects of ENSO on sub-seasonal to interannual length-of-day (LOD) variability. Geophysical Research Abstracts, Vol. 10, 1607/gra/EGU2008-A-10515.
2007
Lehmann, E., Chr. Endler, G.C. Leckebusch, U. Ulbrich, P. Névir, 2007: LOD - An independent indicator for climate variability & change? Geophysical Research Abstracts, Vol. 9, 1607-7962/gra/EGU2007-A-07641.
2005
Wolfgang Lucht, Elfrun Lehmann, Sybill Schaphof, Birgit Schröder, Tim Erbrecht, 2005: Trends in the Regional Carbon Budget 1900-2100, Final Technical Report to the Siberia II Projekt (Mult-Sensor Concepts for Greenhouse Gas Accounting in Northern Eurasia), 5th Framework Programme of the European Commission.
2002
Lehmann, E., P. Franzese, S. R. Hanna, R. Britter, N. Hamer (2002): Testing and development of comprehensive evaluation methodologies for urban dispersion models and their relationship to users needs requirements, Vortrag und Beitrag in Proceedings der 12. Joint Conference on the Application of Air Pollution Meteorology, A&WMA Norfolk, Virginia, USA
Hanna, S. R., E. Lehmann, P. Franzese, N. Hamer (2002): User-Based Requirements Assessment for Atmospheric Transport Tools, School of Computational Sciences, George Mason University, Fairfax, VA 22030-4444, Technical Report to the Department of Energy, Chemical and Biological National Security (CBNP) Program.
2000 or earlier
Gary Moore, Lloyd Schulman, Elfrun Lehmann, 2000: Ohio Valley-Ozone Smog Pollution and Power Plants in the Ohio River Valley, Technical Report to the Ohio Environmental Council, Ohio Valley Environmental Coalition, Ohio Valley Environmental Restoration.
Lehmann, E., 1998: An Evaluation of the Predictive Performance of the Photochemical Grid Models UAM-V and CAMx for the Northeast Corridor, Proceedings of the 91st Air & Waste Management Association Annual Meeting & Exhibition, San Diego, California, USA.
Lehmann, E., 1997: Comparison of Modeled and Observed Ozone, NOxand Biogenic Isoprene Concentration in Maryland, Technical Report to NOAA ARL, Silver Spring, MD.
Jaenicke, R., V. Dreiling, E. Lehmann, P.K. Koutsenogli, J. Stingl, 1992: Condensation Nuclei at The German Antarctic Station Georg-von-Neumayer, Tellus, Vol. 44B, 311-317.
Lehmann, E., R. Jaenicke, 1991: Condensation Nuclei Measurements at The Georg von Neumayer Station (F.R.G.), Coastal Antarctica, J. Aerosol Sci., Vol. 22, 589-592.