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Stefanie Kremser

Position: Research Scientist

Email address: stefanie@bodekerscientific.com

Academic Qualifications

  • 2007 Diplom, Meteorology, Freie Universität Berlin, Germany
  • 2011 PhD, Geosciences, Freie Universität Berlin, Germany 

Scholarships and Membership

  • 2014 - present                 Member of the New Zealand Association of Scientist
  • 2014 - present                 Member of the New Zealand Meteorological Society
  • 2014 - present                 Member of the Royal Society of New Zealand
  • 2012 – 2016                    Marsden Fund Fast-Start research grant, Royal Society of New Zealand
  • Mar 2008 – Feb 2011     German Academic Exchange Service (DAAD) Scholarship
  • 2008 – present                Member of the American Geophysical Union
  • 2008 – present                Member of the European Geosciences Union
  • 2006 – present                Member of the German Meteorological Society

Professional Positions Held

  • May 2011 – present        Research Scientist, Bodeker Scientific
  • Mar 2008 – Apr 2011       PhD Student, Freie Universität Berlin, Germany, and NIWA Lauder, New Zealand
  • Oct 2007 – Jan 2008       Research Assistant, Alfred Wegener Institute Potsdam, Germany

Present research/ Professional Speciality

  • Application of ground-based millimetre-wave measurements of ClO
  • Chemical ozone loss processes in the polar stratosphere. Study of the ClO dimer kinetics using ground-based measurements combined with an optimal estimation approach.
  • Development and improvement of semi-empirical models describing chlorine activation, deactivation and related ozone depletion in the polar stratosphere
  • Application of semi-empirical models to project the future evolution of ozone in the Antarctic stratosphere.
  • Creation of long-term databases of stratospheric composition from splicing of data from multiple sources.
  • Development of a climate pattern scaling method (Climate Pattern Scaling).
  • Tropospheric-Stratospheric transport of water vapour and sulfur compounds
  • Analyze EPIC output to quantify changes in future extreme weather events for New Zealand for a wide range of possible future GHG emissions scenarios and for a range of climate models (Climate Changes Impacts and Implications). 
Field work
  • 2008/2009/2011 visit to Scott Base, Antarctica to maintain/calibrate the ClO microwave radiometer (Chloe) which is jointly operated by NIWA and NRL 
  • 29 January to 18 February 2015 - taking part in the RV Investigator Cold Water Trial Voyage 2015 to launch radiosondes from the back of the ship at several latitudes between Hobart and the ice edge.

Refereed Publications (12)

Södergren, A.H., Bodeker, G.E., Kremser, S., Meinshausen, M., and McDonald, A.J. (2016)

A probabilistic study of the return of stratospheric ozone to 1960 levels

Geophysical Research Letters, 2016.

Nedoluha, G.E., Connor, B.J., Mooney, T., Barrett, J.W., Parrish A., Gomez, R.M., Boyd, I., Allen, D.R., Kotkamp, M., Kremser, S., Deshler, T., Newman, P., and Santee, M.L. (2016)

20 Years of ClO Measurements in the Antarctic Lower Stratosphere

Atmos. Chem. Phys., ??, 2016.

Wang, Y., Deutscher, N.M., Palm, M., Warneke, T., Notholt, J., Baker, I., Berry, J., Suntharalingam, P., Jones, N., Mahieu, E., Lejeune, B., Hannigan, J., Conway, S., Mendonca, J., Strong, K., Campbell, J.E., Wolf, A., Kremser, S. (2016)

Towards understanding the variability in biospheric CO2 fluxes: using FTIR spectrometry and a chemical transport model to investigate the sources and sinks of carbonyl sulfide and its link to CO2

Atmos. Chem. Phys., 16, 2123-2138.

Kremser, S., Jones N.B., Palm, M., Lejeune, B., Wang, Y., Smale, D., and Deutscher N.M. (2015)

Positive trends in Southern Hemisphere carbonyl sulfide (OCS)

Geophysical Research Letters, 10.1002/2015GL065879.

Bodeker, G.E. and Kremser S. (2015):

Techniques for analyses of trends in GRUAN data

Atmos. Meas. Tech., 8, 1673–1684.

Rex, M.; Kremser, S.; Huck, P.; Bodeker, G., Wohltmann, I.; Santee, M.L.; and Bernath, P. (2014) 

Technical Note: SWIFT – a fast semi-empirical model for polar stratospheric ozone loss 

Atmos. Chem. Phys., 14, 6545-6555, doi:10.5194/acp-14-6545-2014, 2014.

Kremser, S.; Bodeker, G.E., and Lewis, J. (2014)

Methodological aspects of a pattern-scaling approach to produce global fields of monthly means of daily maximum and minimum temperature

Geosci. Model Dev., 7, 249-266, doi:10.5194/gmd-7-249-2014

Huck, P.E.; Bodeker, G.E.; Kremser, S.;  McDonald, A.J.; Rex, M. and Struthers, H. (2013)

Semi-empirical models for chlorine activation and ozone depletion in the Antarctic stratosphere: proof of concept

Atmos. Chem. Phys. 13, 3237–3243

Kremser, S.; Schofield, R.; Bodeker, G.E.; Connor, B.J.; Rex, M.; Barret, J.; Mooney, T.; Salawitch, R.J.; Canty, T.; Frieler, K.; Chipperfield, M.P.; Langematz, U. and Feng, W. (2011)

Retrievals of chlorine chemistry kinetic parameters from Antarctic ClO microwave radiometer measurements

Atmos. Chem. Phys.,11, 5183–5193

Gettelman, A.; Hegglin, M.I.; Son, S.-W.; Kim, J.; Fujiwara, M.; Birner, T.; Kremser, S.; Rex, M.; Anel, J.A.; Akiyoshi et al. (2010)

Multi-model Assessment of the Upper Troposphere and Lower Stratosphere: Tropics and Global Trends

J. Geophys. Res., D00M08, doi:10.1029/2009JD013638

Kremser, S.; Wohltmann, I.; Rex, M.; Langematz, U.; Dameris, M. and Kunze, M. (2009)

Water vapour transport in the tropical tropopause region in coupled Chemistry-Climate Models and ERA-40 reanalysis data

Atmos. Chem. Phys., 9, 2679-2694