Robert Oscar David

Norwegian version of this page
Room 2404
Visiting address Blindernveien 31 Kristine Bonnevies hus 0371 OSLO
Postal address Postboks 1022 Blindern 0315 OSLO

Academic interests

  • Mixed phase clouds (MPCs): In situ measurements, microphysical properties, spatial distribution of cloud particles, efficiency of the Wegener-Bergeron-Findeisen process, influence of ice nucleating particles and secondary ice on MPC glaciation and lifetime
  • Ice nucleating particles (INPs): field and laboratory measurements of INPs, elucidating the mechanisms responsible for ice formation, physio-chemical properties of INPs, development of ice nucleation parametrizations
  • Holography: cloud particle measurements, phase discrimination and ice crystal habit classification using machine learning


  • 2019-present: Postdoctoral Fellow, University of Oslo, Norway
  • 2015-2019: Doctorate (Dr. Sc.), ETH Zurich, Switzerland
Tags: Clouds, Holography, Ice nucleation, Meteorology


  • Gute, E., David, R. O., Kanji, Z. A. and Abbatt, J. P. D.: Ice Nucleation Ability of Tree Pollen Altered by Atmospheric Processing, ACS Earth Space Chem., 4(12), 2312–2319, doi:10.1021/acsearthspacechem.0c00218, 2020.

  • McGraw, Z., Storelvmo, T., David, R. O. and Sagoo, N.: Global Radiative Impacts of Mineral Dust Perturbations Through Stratiform Clouds, J. Geophys. Res. Atmospheres, 125(23), e2019JD031807, doi:, 2020.

  • David, R. O., Fahrni, J., Marcolli, C., Mahrt, F., Brühwiler, D., and Kanji, Z. A.: The role of contact angle and pore width on pore condensation and freezing, Atmos. Chem. Phys., 20, 9419–9440,, 2020.

  • Cascajo-Castresana, M., David, R. O., Iriarte-Alonso, M. A., Bittner, A. M., and Marcolli, C.: Protein aggregates nucleate ice: the example of apoferritin, Atmos. Chem. Phys., 20, 3291–3315,, 2020

  • Mahrt, F., Kilchhofer, K., Marcolli, C., Grönquist, P., David, R. O., Rösch, M., Lohmann, U. and Kanji, Z. A.: The Impact of Cloud Processing on the Ice Nucleation Abilities of Soot Particles at Cirrus Temperatures, J. Geophys. Res. Atmospheres, 125(3), e2019JD030922, doi:10.1029/2019JD030922, 2020

  • Brennan, K. P., David, R. O. and Borduas-Dedekind, N.: Spatial and temporal variability in the ice-nucleating ability of alpine snowmelt and extension to frozen cloud fraction, Atmospheric Chem. Phys., 20(1), 163–180, doi:, 2020.
  • David, R. O., Cascajo-Castresana, M., Brennan, K. P., Rösch, M., Els, N., Werz, J., Weichlinger, V., Boynton, L. S., Bogler, S., Borduas-Dedekind, N., Marcolli, C. and Kanji, Z. A.: Development of the DRoplet Ice Nuclei Counter Zurich (DRINCZ): validation and application to field-collected snow samples, Atmospheric Meas. Tech., 12(12), 6865–6888, doi:, 2019.
  • Baloh, P., Els, N., David, R. O., Larose, C., Whitmore, K., Sattler, B. and Grothe, H.: Assessment of Artificial and Natural Transport Mechanisms of Ice Nucleating Particles in an Alpine Ski Resort in Obergurgl, Austria, Front. Microbiol., 10, doi:10.3389/fmicb.2019.02278, 2019.
  • Borduas-Dedekind, N., Ossola, R., David, R. O., Boynton, L. S., Weichlinger, V., Kanji, Z. A. and McNeill, K.: Photomineralization mechanism changes the ability of dissolved organic matter to activate cloud droplets and to nucleate ice crystals, Atmospheric Chem. Phys., 19(19), 12397–12412, doi:, 2019.
  • Lowenthal, D. H., Hallar, A. G., David, R. O., McCubbin, I. B., Borys, R. D., and Mace, G. G.: Mixed-phase orographic cloud microphysics during StormVEx and IFRACS, Atmos. Chem. Phys., 19, 5387-5401,, 2019.
  • David, R. O., Marcolli, C., Fahrni, J., Qui, Y., Perez Sirkin, Y. A., Molinero, V., Mahrt, F., Brühwiler, D., Lohmann, U., Kanji, Z. A.: Pore condensation and freezing is responsible for ice formation below water saturation for porous particles, PNAS, 116, (17), 8184-8189, doi: 10.1073/pnas.1813647116, 2019.
  • Paramonov, M., David, R. O., Kretzschmar, R., and Kanji, Z. A.: A laboratory investigation of the ice nucleation efficiency of three types of mineral and soil dust, Atmos. Chem. Phys., 18, 16515-16536,, 2018.
  •  Mahrt, F., Marcolli, C., David, R. O., Grönquist, P., Barthazy Meier, E. J., Lohmann, U., and Kanji, Z. A.: Ice nucleation abilities of soot particles determined with the Horizontal Ice Nucleation Chamber, Atmos. Chem. Phys., 18, 13363-13392,, 2018.
  • Beck, A., Henneberger, J., Fugal, J. P., David, R. O., Lacher, L., and Lohmann, U.: Impact of surface and near-surface processes on ice crystal concentrations measured at mountain-top research stations, Atmos. Chem. Phys., 18, 8909-8927,, 2018.
  • Garimella, S., Rothenberg, D. A., Wolf, M. J., David, R. O., Kanji, Z. A., Wang, C., Rösch, M., and Cziczo, D. J.: Uncertainty in counting ice nucleating particles with continuous flow diffusion chambers, Atmos. Chem. Phys., 17, 10855-10864,, 2017.
  • Lowenthal, D. H., Hallar, A., McCubbin, I. B., David, R. O., Borys, R. D., Blossey, P., Muhlbauer, A., Kuang, Z., Moore, M. (2016). Isotopic Fractionation in Wintertime Orographic Clouds. I: Isotopic Measurements, J. Atmos. Oceanic Technol., 33, (12), 2663-2678, doi: 10.1175/JTECH-D-15-0233.1
Published May 10, 2019 9:59 AM - Last modified Dec. 22, 2020 3:46 PM