I work on the OpenIFS Project. My role includes the further development of the OpenIFS model and therein I collaborate with scientists within ECMWF and with model users at other institutions. My research background is in numerical modelling of atmospheric chemistry and chemistry-climate interactions.
Main Responsibilities:
- OpenIFS/AC Project: Implementation of gas-phase and aerosol chemistry in OpenIFS (in collaboration with KNMI and Member State scientists)
- Development of the OpenIFS Web User Interface for the generation of input data
- Design and delivery of OpenIFS training courses and workshops
- User support
- Atmospheric chemistry in OpenIFS
- Tracer transport in OpenIFS
- User support and professional training with OpenIFS
- Chemistry-climate interactions
- Tropospheric oxidizing capacity and the impact of emissions
- Climate impacts of the aviation transport sector
Professional experience:
since 2018 Scientist, ECMWF, Reading, UK
Research Department
2017 - 2018 Senior Research Associate, University of East Anglia, Norwich, UK
Centre for Ocean and Atmospheric Sciences, School of Environmental Sciences
2015 - 2017 Research Associate, University of Cambridge, UK
Centre for Atmospheric Science, Department of Chemistry
2015 Visiting Researcher, British Antarctic Survey, Cambridge, UK
2013 - 2015 Research Fellow, University of Birmingham, UK
School of Geography, Earth and Environmental Sciences
2008 - 2013 Lecturer in Climate-Environment Interactions, King's College London, UK
Department of Geography
2003 - 2008 Research Associate, University of Cambridge, UK
Institute for Aviation and the Environment, Department of Chemistry
Education:
2004 Ph.D. in Atmospheric Chemistry
Centre for Atmospheric Science, Department of Chemistry,
University of Cambridge, United Kingdom
1999 Diplom (equivalent to M.Sc.) in Meteorology
Institut für Meteorologie und Klimaforschung,
Universität Karlsruhe (now KIT - Karlsruher Institute for Technology), Germany
1996 Visiting International Student
Department of Geography, University of the Witwatersrand,
Johannesburg, South Africa
Fellow of the Royal Meteorological Society
Fellow of the Higher Education Academy
2017 - 2019 External PhD supervisor at University of East Anglia, Norwich, UK
- 2023
- Marcus Köhler, Adrian Hill, Vincent Huijne, Philippe Le Sager (April 2023) Enhancing OpenIFS by adding atmospheric composition capabilities, ECMWF Newsletter. DOI: 10.21957/np36mk1s9d
- 2022
- Iain Russell, Sandor Kertész, Marcus O. Köhler (January 2022) New Python data exploration functions in Metview, ECMWF Newsletter, issue 170, pp. 32-35. DOI: 10.21957/st60e7fj9k
- Vincent Huijnen, Philippe Le Sager, Marcus O. Köhler, Glenn Carver, Samuel Rémy, Johannes Flemming, Simon Chabrillat, Quentin Errera, Twan van Noije (August 2022) OpenIFS/AC: atmospheric chemistry and aerosol in OpenIFS 43r3, Geoscientific Model Development. DOI: 10.5194/gmd-15-6221-2022
- 2021
- Sarah Sparrow, Andrew Bowery, Glenn D. Carver, Marcus O. Köhler, Pirkka Ollinaho, Florian Pappenberger, David Wallom, Antje Weisheimer (June 2021) OpenIFS@home version 1: a citizen science project for ensemble weather and climate forecasting, Geoscientific Model Development. DOI: 10.5194/gmd-14-3473-2021
- 2020
- (February 2020) Implementation of UK Earth system models for CMIP6, Journal of Advances in Modeling Earth Systems n. 4, pp. e2019MS001946. DOI: 10.1029/2019ms001946
- (March 2020) Description and evaluation of the UKCA stratosphere-troposphere chemistry scheme (StratTrop vn 1.0) implemented in UKESM1, Geoscientific Model Development n. 3, pp. 1223-1266. DOI: 10.5194/gmd-13-1223-2020
- Joakim Kjellsson, Jan Streffing, Glenn Carver, Marcus O. Köhler (July 2020) From weather forecasting to climate modelling using OpenIFS, ECMWF Newsletter, issue 164, pp. 38-41. DOI: 10.21957/469hc10jk5
- 2015
- (December 2015) Global Atmospheric Chemistry and Impacts from Aviation, Encyclopedia of Aerospace Engineering, pp. 1-10. DOI: 10.1002/9780470686652.eae347.pub2
- 2014
- Dessens Olivier, Köhler Marcus O., Rogers Helen L., Jones Rod L., Pyle John A. (September 2014) Aviation and climate change, Transport Policy. DOI: 10.1016/j.tranpol.2014.02.014
- 2013
- Köhler M. O. (September 2013) Latitudinal variation of the effect of aviation NOx emissions on atmospheric ozone and methane and related climate metrics n. 1, pp. 1-9. DOI: 10.1016/j.atmosenv.2012.09.013
- Krammer Philip (September 2013) Climate-neutrality versus Carbon-neutrality for Aviation Biofuel Policy, pp. 64-72. DOI: 10.1016/j.trd.2013.03.013
- 2010
- Köhler Marcus O. (September 2010) Chemistry of the Atmosphere and Impacts from Global Aviation, pp. 3629-3640. DOI: 10.1002/9780470686652
- 2008
- Köhler M. O. (September 2008) Impact of perturbations to nitrogen oxide emissions from global aviation. DOI: 10.1029/2007JD009140
- 2007
- Köhler M. O. (September 2007) Response in ozone and methane to small emission changes and dependence on cruise altitude, pp. 147–153.
- Reynolds T. G. (September 2007) Modelling Environmental & Economic Impacts of Aviation: Introducing the Aviation Integrated Modelling Project n. AIAA-2007-7751. DOI: 10.2514/6.2007-7751
- 2006
- Stordal F. (September 2006) TRADEOFFs in climate effects through aircraft routing: forcing due to radiatively active gases n. 5, pp. 10733-10771. DOI: 10.5194/acpd-6-10733-2006
- 2005
- Sausen R. (September 2005) Aviation radiative forcing in 2000: An update on IPCC (1999) n. 4, pp. 555-561. DOI: 10.1127/0941-2948/2005/0049
- Brunner D. (September 2005) An evaluation of the performance of chemistry transport models - Part 2: Detailed comparison with two selected campaigns n. 1, pp. 107-129. DOI: 10.5194/acp-5-107-2005
- 2004
- Esler J. G. (September 2004) A quantitative analysis of grid-related systematic errors in oxidising capacity and ozone production rates in chemistry transport models n. 7, pp. 1781-1795. DOI: 10.5194/acp-4-1781-2004
- 2003
- Köhler M. O. (September 2003) Modelling the Impact of Subsonic Aircraft Emissions on Ozone: Future Changes and the Impact of Cruise Altitude Perturbations, pp. 173-177.
- Brunner D. (September 2003) An evaluation of the performance of chemistry transport models by comparison with research aircraft observations. Part 1: Concepts and overall model performance n. 5, pp. 1609-1631. DOI: 10.5194/acp-3-1609-2003
- Köhler M. O. (September 2003) Modelling the Global Impact of Nitrogen Oxides from Subsonic Aircraft Emissions on Ozone.
- 1996
- Joubert A. M. (September 1996) Projected temperature increases over southern Africa due to increasing levels of greenhouse gases and sulphate aerosols n. 11—12, pp. 524-526.