Phone: +47 22 00 47 37 /
E-mail: kari.alterskjar@cicero.oslo.no
Natural scientist with a special interest in extreme precipitation, clouds and aerosol-cloud interactions.
Kari Alterskjær is currently studying extreme precipitation in a changing climate, both from observations and through modelling. She has a broad background in research on clouds and aerosol-cloud interactions, mainly through climate modelling. Kari holds a PhD in Atmospheric Science from the University of Oslo (2013).
Projects
- SUPER - SUb-daily Precipitation Extremes in highly-populated Regions The main objective of SUPER is to quantify the influence of anthropogenic activity on sub-daily extreme precipitation in highly populated regions
Publications and outreach at CICERO
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Journal article
2020
- Gunnar Myhre, Bjørn Hallvard Samset, Christian Wilhelm Mohr, Kari Alterskjær, Yves Balkanski, Nicolas Bellouin, Mian Chin, James Haywood, Øivind Hodnebrog, Stefan Kinne, Guangxing Lin, Marianne Tronstad Lund, Joyce E. Penner, M Schulz, Nick Schutgens, Ragnhild Bieltvedt Skeie, Philip Stier, Toshihiko Takemura, Kai Zhang, 2020 Cloudy-sky contributions to the direct aerosol effect Atmospheric Chemistry and Physics, Copernicus GmbH, EN
- Inger Helene H. Karset, Andrew Gettelman, Trude Storelvmo, Kari Alterskjær, Terje K. Berntsen, 2020 Exploring Impacts of Size-Dependent Evaporation and Entrainment in a Global Model Journal of Geophysical Research (JGR): Space Physics, EN
- Jenny Bjordal, Trude Storelvmo, Kari Alterskjær, Tim Carlsen, 2020 Equilibrium climate sensitivity above 5 °C plausible due to state-dependent cloud feedback Nature Geoscience, EN
- Christopher J. Smith, Ryan J. Kramer, Gunnar Myhre, Kari Alterskjær, William J. Collins, Adriana Sima, Olivier Boucher, Jean-Louis Dufresne, Pierre Nabat, Martine Michou, Seiji Yukimoto, Jason N.S. Cole, David Paynter, Hideo Shiogama, Fiona M. O'Connor, Eddy Robertson, Andy Wiltshire, Timothy Andrews, Cecile Hannay, Ron Miller, Larissa Nazarenko, Alf Kirkevåg, Dirk Jan Leo Oliviè, Stephanie Fiedler, Anna Lewinschal, Chloe MacKallah, Martin Dix, Robert Pincus, Piers M. Forster, 2020 Effective radiative forcing and adjustments in CMIP6 models Atmospheric Chemistry and Physics, Copernicus GmbH, EN
- Louis Marelle-Sebrechts, Gunnar Myhre, Birthe Marie Rødssæteren Steensen, Øivind Hodnebrog, Kari Alterskjær, Jana Sillmann, 2020 Urbanization in megacities increases the frequency of extreme precipitation events far more than their intensity Environmental Research Letters, EN
2019
- Gunnar Myhre, Kari Alterskjær, Camilla Weum Stjern, Øivind Hodnebrog, Louis Marelle-Sebrechts, Bjørn Hallvard Samset, Jana Sillmann, Nathalie Schaller, Erich Fischer, M Schulz, Andreas Stohl, 2019 Frequency of extreme precipitation increases extensively with event rareness under global warming Scientific Reports, EN
- Øivind Hodnebrog, Gunnar Myhre, Bjørn Hallvard Samset, Kari Alterskjær, Timothy Andrews, Oliviér Boucher, Gregory S. Faluvegi, Dagmar Fläschner, Piers M. Forster, Matthew Kasoar, Alf Kirkevåg, Jean-François Lamarque, Dirk Jan Leo Oliviè, Thomas Benjamin Richardson, Dilshad Shawki, Drew Shindell, Keith P Shine, Philip Stier, Toshihiko Takemura, Apostolos Voulgarakis, Duncan Watson-Parris, 2019 Water vapour adjustments and responses differ between climate drivers Atmospheric Chemistry and Physics, Copernicus GmbH, EN
- Øivind Hodnebrog, Louis Marelle-Sebrechts, Kari Alterskjær, Raul R. Wood, R. Ludwig, Erich M. Fischer, Thomas B. Richardson, Piers M. Forster, Jana Sillmann, Gunnar Myhre, 2019 Intensification of summer precipitation with shorter time-scales in Europe Environmental Research Letters, EN
- Gunnar Myhre, Kari Alterskjær, Camilla Weum Stjern, Øivind Hodnebrog, Louis Marelle-Sebrechts, Bjørn Hallvard Samset, Jana Sillmann, Nathalie Schaller, Erich Fischer, M Schulz, Andreas Stohl, 2019 Frequency of extreme precipitation increases extensively with event rareness under global warming Scientific Reports, EN
2018
- Inger Helene H. Karset, Terje K. Berntsen, Trude Storelvmo, Kari Alterskjær, Alf Grini, Dirk Jan Leo Oliviè, Alf Kirkevåg, Øyvind Seland, Trond Iversen, M Schulz, 2018 Strong impacts on aerosol indirect effects from historical oxidant changes Atmospheric Chemistry and Physics, Copernicus GmbH, EN
- Alf Kirkevåg, Alf Grini, Dirk Jan Leo Oliviè, Øyvind Seland, Kari Alterskjær, Matthias Hummel, Inger Helene H. Karset, Anna Lewinschal, Xiaohong Liu, Risto Makkonen, Ingo Bethke, Jan Griesfeller, M Schulz, Trond Iversen, 2018 A production-tagged aerosol module for earth system models, OsloAero5.3-extensions and updates for CAM5.3-Oslo Geoscientific Model Development, Copernicus GmbH, EN
- B Poschlod, Øivind Hodnebrog, RR Wood, Kari Alterskjær, Ralf Ludwig, Gunnar Myhre, Jana Sillmann, 2018 Comparison and Evaluation of Statistical Rainfall Disaggregation and High-Resolution Dynamical Downscaling over Complex Terrain Journal of Hydrometeorology, EN
2014
- Charles L. Curry, Jana Sillmann, David Bronaugh, Kari Alterskjær, Jason N.S. Cole, Duoying Ji, Ben Kravitz, Jon Egill Kristjansson, John C. Moore, Helene Østlie Muri, Ulrike Niemeier, Alan Robock, Simone Tilmes, Shuting Yang, 2014 A multimodel examination of climate Extremes in an idealized geoengineering experiment Journal of Geophysical Research (JGR): Atmospheres, EN
2012
- H Schmidt, Kari Alterskjær, Diana Bou Karam, O Boucher, A Jones, Jon Egill Kristjansson, U. Niemeier, M Schulz, Hans Asbjørn Aaheim, F. Benduhn, M Lawrence, C. Timmreck, 2012 Can a reduction of solar irradiance counteract CO2-induced climate change? – Results from four Earth system models Earth System Dynamics, Copernicus GmbH, EN
2010
- Gunnar Myhre, Kari Alterskjær, D. Lowe, 2010 Addendum to 'A fast method for updating global fossil fuel carbon dioxide emissions' Environmental Research Letters, EN
2009
- Gunnar Myhre, Kari Alterskjær, David Lowe, 2009 A fast method for updating global fossil fuel carbon dioxide emissions Environmental Research Letters, EN