Prof. Dr. Stefan Bühler

• Role of water vapor and clouds in the climate system
• Radiative transfer modeling
• New sensor concepts for water vapor and cloud ice remote sensing
• Cloud ice microphysics
• Numerical methods
• Satellite climate data records

Career Stations

Since April 2015:

Director, Meteorological Institute, University of Hamburg, Germany

Since September 2013:

Professor (W3) in Applied Meteorology, University of Hamburg, Meteorological Institute, Hamburg, Germany

September 2006 - August 2013:

Professor chair in Space Technology, Lulea University of Technology, Department of Space Science, Kiruna, Sweden

2005-2006:

"Privatdozent" (A13), University of Bremen

December 2004:

Habilitation. Thesis: Remote Sensing of Atmospheric Composition for Climate Applications

2001-2004:

Assistant professor (C2)

2000-2001:

Senior working group leader (BAT Ia)

1998-2000:

Working group leader (BAT IIa)

1998:

Phd, University of Bremen. Thesis: Microwave Limb Sounding of the Stratosphere and Upper Troposphere

1994-1998:

PhD student, University of Bremen, Institute of Remote Sensing

1994:

Master, SUNY at Stony Brook. Thesis: A Study of Atmospheric Opacity near 275 GHz at very low Temperatures

1993-1994:

Graduate student, State University of New York at Stony Brook, Dept. of Physics

1993:

Vordiplom, University of Tübingen

1990-1993:

Undergraduate student, University of Tübingen, Dept. of Physics

Community Services

Since 2018:

Member of FORUM ESA Mission Advisory Group

Since 2014:

Member of Metop-SG Microwave Imager and Ice Cloud Imager Science Advisory Group

2010:

Lead scientist of ISS-Ice ESA mission proposal

2010:

Lead scientist of CloudIce ESA Earth Explorer mission proposal

2007-2011:

Swedish delegate of COST Action ES0604 "WaVaCS"

2005:

Lead scientist of CIWSIR ESA Earth Explorer mission proposal

2002-2005:

Chairman of COST 723

2002-2004:

ACE+ ESA Mission Advisory Group member

2001-2002:

Initiator of COST 723 "UTLS"

1998-2000:

German delegate for working group 2, COST 712 "Microwave Radiometry"

Since 2008:

Editor for Atmospheric Chemistry and Physics (ACP) and Atmospheric Measurement Techniques (AMT)

Since 2002:

Reviewer for various grant applications for the UK Natural Environment Research Council (NERC), the Swedish Space Board, and the Deutsche Forschungsgemeinschaft (DFG)

Since 2000:

Reviewer for various scientific articles in JGR, GRL, JQSRT, ACP, IEEETGRS, and other journals

2010:

Lead-organizer of COST WaVaCS final workshop, focus on science theme 1, water vapor time series and trends

2005:

Co-organizer of summer school: Cargese International School, COST Action 723, Upper Troposphere and Lower Stratosphere

Since 1999:

Organizer of "International Radiative Transfer Workshop I - VIII"

Grants

Swedish National Projects

2011-2013:

"MW-Ice - A Global Cloud Ice Product from Operational Microwave Satellite Data", Swedish Research Council

2011:

"Satellite Atmospheric Science", Swedish National Space Board

2008-2011:

"SUBMIC -- Sub-Millimeterwave Observations of Ice Clouds", Swedish National Space Board

2008-2010:

"Cloud Ice Climatology", Swedish Research Council

German National Projects

2000-2005:

"UTH-MOS -- Upper Tropospheric Humidity and Ice from Meteorological Operational Sensors", AFO 2000-C, GSF Project 07 ATC 04

1996-2004:

"SMILES -- The Submillimeterwave Limb Emission Sounder", DLR Project 50 EE 9815, application together with Prof. K. Künzi

International Projects

2015-2016:

Geosounder Requirements Consolidation Study, ESTEC (Contract No. 4000113023/14/NL/MV)

2015-2019:

FIDUCEO (FIDelity and Uncertainty in Climate data records from Earth Observations), EU Horizon 2020 (Grant Agreement No. 638822)

2011-2013:

"Microwave propagation toolbox for planetary atmospheres", ESTEC (Contract No. 4000104175/11/NL/AF)

2005-2006:

"Study to Establish Mission and Instrument Requirements to Observe Cirrus Clouds at Sub-Millimeter Wavelengths", ESTEC Contract No 19053/05/NL/AR

2005-2007:

"Detailed Validation of all Main Assumptions in RTTOVSCATT", EUMETSAT NWP-SAF

2004-2005:

"SWORD -- Studies on distribution and variability of water vapour concentrations on base of remote sensing and in-situ data", Marie Curie Intra-European Fellowships, FP6, grant obtained in collaboration with A. Jaczewski, Poland

2004-2006:

"Development of a Radiative Transfer Model for Frequencies between 200 and 1000 GHz", ESTEC Contract No 17632/03/NL/FF

2003-2004:

"ACECLIM -- ACE+ Climate Impact Study", ESTEC Contract No 17479-03-NL-FF

2003-2004:

"ACEPASS -- LEO-LEO Occultation Characterisation Study", ESTEC Contract No 16743-02-NL-FF

2003-2004:

"Characterisation of Millimeter-Wave Spectroscopic Signatures", ESTEC Contract No 16377-02-NL-FF

2002-2004:

"Consideration of a Mission Studying the Chemistry of the UTLS", ESTEC Contract No 15457-01-NL-MM

2001:

"Assessment of Uncertainties in LEO-LEO Transmission Observations through the Troposphere / Stratosphere", ESTEC Contract No 15341-01-NL-SF

1999-2000:

"Critical Assessments in Millimeter-Wave Atmospheric Limb Sounding", ESTEC Contract No 13348-98-NL-GD

1998-2000:

"The Retrieval of Data from Sub-Millimeter Limb Sounding", ESTEC Contract No 11979-97-NL-CN

1998-1999:

"Study on Upper Troposphere / Lower Stratosphere Sounding", ESTEC Contract No 12053-97-NL-CN

1997-1998:

"Study on a Spectroscopic Data Base for Millimeter and Submillimeter Wavelengths", ESTEC Contract No 11581-95-NL-CN

1995-1996:

"The Impact of Continuum Emissions in the mm and Sub-mm Spectral Range", ESTEC Contract No 10998-94-NL-CN, application by Prof. K. Künzi

Teaching Experience:

Since 1999: Courses in radiative transfer, practical meteorology, atmospheric physics, mathematical methods, remote sensing, scientific presentation techniques, programming and data visualization, and cloud physics.