Stefanie Falk

Image of Stefanie Falk
Norwegian version of this page
Phone +47-22855816
Room 58.12.47
Username
Visiting address Gaustadalléen 21 Bygning H plan 3 Forskningsparken 0349 OSLO
Postal address Postboks 1022 Blindern 0315 OSLO

Academic interests

  • Chemistry-climate-modeling
    • OsloCTM3
    • WRF-chem
    • EMAC
  • Stratospheric/tropospheric ozone
    • Vegetation-ozone interaction in a changing climate
    • Ozone dry deposition
    • Very short-lived ozone depleting substances (VSLS)
    • Polar boundary layer: bromine explosions and ozone depletion

Background

  • Jan 2018 – present: Postdoctoral Fellow, Department of Geosciences, University of Oslo
    • Modeling of ozone inflicted damage to the vegetation in northern Scandinavia under climate change using OsloCTM3, WRF, Do3SE.
  • 2015 – 2017: PostDoc, Karlsruhe Institute of Technology
    • Simulations regarding the interaction of climate processes and atmospheric chemistry using the chemistry climate model EMAC (ECHAM/MESSy).
    • Analysis of various aspects regarding future influence of brominated VSLS on ozone depletion.
    • Modeling of Arctic bromine explosions within the framework of EMAC and comparison with in-situ ozone and satellite BrO column retrievals.
  • 2014: PhD in Astroparticle Physics, Karlsruhe Institute of Technology
  • 2011: Physics Diploma, Karlsruhe

Other Roles

  • Secretary at UiODoc, Interest organization for PhDs and Postdocs at the University of Oslo (Mai 2018 - present)

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Tags: Atmospheric Chemistry, Modelling, Climate effects, Ozone

Publications

Polar boundary layer bromine explosion and ozone depletion events in the chemistry–climate model EMAC v2.52: implementation and evaluation of AirSnow algorithm

Publication date Mar 28 2018 Geosci. Model Dev.

Abstract Ozone depletion events (ODE) in the polar boundary layer are observed frequently in spring. ODE serve as source of tropospheric BrO at high latitudes. A treatment of bromine release and recycling on sea ice and snow covered surfaces has been implemented in global chemistry-climate model EMAC based on scheme of Toyota et al. (2011). Many aspects of bromine enhancement and associated ODE are reproduced in both polar regions. Further bromine release mechanisms can now be tested in a global model.

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Brominated VSLS and their influence on ozone under a changing climate

Publication date Sep 25 2017 Atmospheric Chemistry and Physics

Abstract Brominated very short-lived source gases (VSLS) contribute significantly to the tropospheric and stratospheric bromine loading. We find an increase of future ocean-atmosphere flux of brominated VSLS of 8–10 % compared to present day. A decrease in the tropospheric mixing ratios of VSLS and an increase in the lower stratosphere are attributed to changes in atmospheric chemistry and transport. Bromine impact on stratospheric ozone at the end of the 21st century is reduced compared to present day.

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  • Byre, Hanne Eline; Falk, Stefanie; Stordal, Frode & Berntsen, Terje Koren (2019). An Investigation of Source Regions Contributing to the Deposition of Reactive Nitrogen in Arctic and Boreal Areas. Show summary
  • Falk, Stefanie; Stordal, Frode & Vollsnes, Ane Victoria (2019). Ozon und seine Auswirkungen auf die Vegetation in Nordskandinavien. Show summary
  • Stordal, Frode; Berntsen, Terje Koren; Büker, Patrick; Falk, Stefanie; Rydsaa, Johanne Hope; Gillies, David & Vollsnes, Ane Victoria (2018). Ozone and climate stresses on sub-ARctic tundra vegetation: Modelling of stomatal fluxes in midnight sun.
  • Vollsnes, Ane Victoria; Eriksen, Aud Berglen; Büker, Patrick; Kauserud, Håvard; Falk, Stefanie & Stordal, Frode (2018). Ozone stress on sub-Arctic tundra vegetation: ozone exposure experiments with daylength manipulation..
  • Vollsnes, Ane Victoria; Eriksen, Aud Berglen; Falk, Stefanie; Berntsen, Terje Koren; Kauserud, Håvard; Emberson, Lisa D. & Stordal, Frode (2018). Project The double punch: ozone and climate stresses on vegetation.
  • Vollsnes, Ane Victoria; Eriksen, Aud Berglen; Falk, Stefanie; Bryn, Anders; Viken, Jeanette & Stordal, Frode (2018). Ozonforurensning. Klima, vegetasjon og matproduksjon.
Published Jan. 10, 2018 4:11 PM - Last modified Sep. 12, 2019 4:46 PM