Research Interests

  • Physical, Environmental and Atmospheric Sciences
  • Biosphere-Atmosphere Interactions
  • Atmospheric Chemistry
  • Air Quality
  • Micrometeorology
  • Biogeochemistry
  • Chemical Ionization Mass Spectrometry (CIMS)




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Publications 2023

Contributions to Books / Journals

Journal Article (Original Paper)
  • Fitzky, Anne Charlott; Kaser, Lisa; Peron, Arianna; Karl, Thomas; Graus, Martin; Tholen, Danny; Halbwirth, Heidi; Trimmel, Heidelinde; Pesendorfer, Mario; Rewald, Boris; Sandén (2023): Same, same, but different: Drought and salinity affect BVOC emission rate and alter blend composition of urban trees.
    In: Urban Forestry & Urban Greening 80, No. 127842. (DOI) (Web link)

  • Karl, Thomas; Lamprecht, Christian; Graus, Martin; Cede, Alexander; Tiefengraber, Martin; Vila-Guerau de Arellano, Jordi; Gurarie, David; Lenschow, Donald (2023): High Urban NOx Triggers a Substantial Chemical Downward Flux of Ozone.
    In: Science Advances 9/3, No. eadd2365. (DOI) (Web link)

  • Trimmel, H,; Hamer, P.; Mayer, M.; Schreier, S.; Weihs, P.; Eitzinger, J.; Sanden, H.; Fitzky, A.; Richter, A.; Calvet, J.; Bonan, B.; Meurey, C.; Vallejo, I.; Eckhardt, S.; Santos, G.; Oumami, S.; Arteta, J.; Marecal, V.; Rarrason, L.; Karl, Thomas (2023): The influence of vegetation drought stress on formaldehyde and ozone distributions over a central European city.
    In: Atmospheric Environment 304, No. 119768. (DOI) (Web link)

  • Ye, Chunxiang; Zhou, Xianliang; Zhang, Yingjie; ..., ...; Karl, Thomas; et al (2023): Synthesizing evidence for the external cycling of NOx in high- to low-NOx atmospheres.
    In: Nature Communications 14, No. 7995. (DOI) (Web link)

Proceedings Article (Abstract)
  • Stichaner, Michael; Lamprecht, Christian; Graus, Martin; Goded, Ignacio; Jensen, Niels; Karl, Thomas (2023): A statistical gap filling model for methane fluxes over an urban area in the Alps.
    In: EGUsphere: EGU - General Assembly 2023 - Book of Abstracts. 23–28 April 2023, Wien. Göttingen: Copernicus., No. EGU23-7706. (DOI) (Web link)

Publications 2022

Contributions to Books / Journals

Journal Article (Original Paper)
  • Kaser, L.; Peron, A.; Graus, M.; Striednig, M.; Wohlfahrt, G.; Juráň, S.; Karl, T. (2022): Interannual variability of terpenoid emissions in an alpine city.
    In: Atmospheric Chemistry and Physics 22/8, pp. 5603 - 5618. (DOI) (Web link)

  • Lei, Yadong; Yue, Xu; Liao, Hong; Zhang, Lin; Zhou, Hao; Tian, Chenquang; Gong, Cheng; Ma, Yimian; Cao, Yang; Seco, Roger; Karl, Thomas; Potosnak, Mark (2022): Global Perspective of Drought Impacts on Ozone Pollution Episodes.
    In: Environmental Science & Technology 56/7, pp. 3932 - 3940. (DOI) (Web link)

  • Nicolini, G.; Antoniella, G.; Carotenuto, F.; Christen, A.; Ciais, P.; Feigenwinter, C.; Gioli, B.; Stagakis, S.; Velasco, E.; Vogt, R.; Ward, H. C.; Barlow, J.; Chrysoulakis, N.; Duce, P.; Graus, M.; Helfter, C.; Heusinkveld, B.; Järvi, L.; Karl, T. et al. (2022): Direct observations of CO2 emission reductions due to COVID-19 lockdown across European urban districts.
    In: Science of the Total Environment 830, No. 154662. (DOI) (Web link)

  • Rotach, M. W.; Serafin, S.; Ward, H. C.; Arpagaus, M.; Colfescu, I.; Cuxart, J.; De Wekker, S. F. J.; Grubišić, V.; Kalthoff, N.; Karl, T. G.; Kirshbaum, D. J.; Lehner, M.; Mobbs, S.; Paci, A.; Palazzi, E.; Bailey, A.; Schmidli, J.; Wittmann, C.; Wohlfahrt, G.; Zardi, D. (2022): A collaborative effort to better understand, measure and model atmospheric exchange processes over mountains.
    In: Bulletin Of The American Meteorological Society 103/5, pp. E1282 - E1295. (DOI) (Web link)

  • Wang, H.; Lu, X.; Seco, R.; Stavrakou, T.; Karl, T.; Jiang, X.; Gu, L.; Guenther, A. B. (2022): Modeling Isoprene Emission Response to Drought and Heatwaves Within MEGAN Using Evapotranspiration Data and by Coupling With the Community Land Model.
    In: Journal Of Advances In Modeling Earth Systems 14/12, No. e2022MS003174. (DOI) (Web link)

  • Wang, S.; Yuan, B.; Wu, C.; Wang, C.; Li, T.; He, L.; Huangfu, Y.; Qi, J.; Li, X.; Sha, Q.; Zhu, M.; Lou, S.; Wang, H.; Karl, T.; Graus, M.; Yuan, Z.; Shao, M. (2022): Oxygenated volatile organic compounds (VOCs) as significant but varied contributors to VOC emissions from vehicles.
    In: Atmospheric Chemistry and Physics 22/14, pp. 9703 - 9720. (DOI) (Web link)

  • Ward, H. C.; Rotach, M.; Gohm, A.; Graus, M.; Karl, T.; Haid, M.; Umek, L.; Muschinski, T. (2022): Energy and mass exchange at an urban site in mountainous terrain – the Alpine city of Innsbruck.
    In: Atmospheric Chemistry and Physics 22/10, pp. 6559 - 6593. (DOI) (Web link)

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