June 2013 – current: Full Professor of Earth and Environmental Sciences, Vanderbilt University. Affiliate Professor at the University of Wisconsin – Madison’s Department of Atmospheric and Oceanic Sciences and at the UW-Madison Space Science and Engineering Center.
December 2011 – May 2013: Full Professor at the Department of Atmospheric and Oceanic Sciences and Principal Investigator Cooperative Institute for Meteorological Satellite Studies at the University of Wisconsin – Madison.
June 2007 – November 2012: Associate Professor at the Department of Atmospheric and Oceanic Sciences and Principal Investigator Cooperative Institute for Meteorological Satellite Studies at the University of Wisconsin – Madison.
September 2002 – May 2007: Assistant Professor at the Department of Atmospheric and Oceanic Sciences, University of Wisconsin – Madison.
January 2001 – August 2002: Assistant Professor at the Department of Physics and Astronomy, University of Kansas. Associate Scientist at Free University of Berlin, Institute for Space Sciences.
June 1997 – December 2000: Research Scientist at the Institute for Space Sciences, Free University of Berlin, Germany.
Professional Preparation
University of Cologne, Germany, Undergraduate studies in Atmospheric Sciences, 1988-1990
University of Hamburg/Max-Planck-Institute für Meteorologie, Hamburg, Germany. Diploma (equiv. M.S. degree) in Meteorology obtained at the Subject: A simulation study on cloud/radiation interaction in stratocumulus clouds. April 1994
The Free University of Berlin, Institute for Space Sciences. Ph.D. at. Subject: Retrieval of rain, cloud, and humidity parameters from passive microwave data in coastal regions. May 1997.
Synergistic Activities
Member NASA TROPICS Science Team (2016 – ongoing)
Member NASA OCO-2 Science Team (2010 – ongoing)
JCSDA PI/Co-PI, (2003 – ongoing)
Co-organizer ‘International Cloud Working Group’, October 31 – November 4, 2018, Madison, WI, USA.
Expert Reviewer Intergov. Panel on Climate Change, Working Group 1, 5th Assessment Report
Member American Meteorological Society Radiation Committee (2012-2014)
Editor of the Journal of Applied Meteorology and Climatology (JAMC). 2006 – 2010.
Chair, JCSDA Working Group on Cloud and Precipitation Data Assimilation 2011-2015
Chair of workshop series ‘International Workshop on Space-based Snowfall Measurements’, 2007,2009, 2011,2013, 2016.
Member of various international scientific working groups and science teams, including the International Tyros Operational Vertical Sounder (TOVS) Working Group (ITWG), International Precipitation Working Group (IPWG).
GEWEX Water Vapor Assessment G-VAP, ESA Arctic Product Validation and Evolution (APVE) program.
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