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Jon Egill Kristjansson

Image of Jon Egill Kristjansson
Norwegian version of this page
Phone +47-22855813
Fax +47-22855269
Username
Visiting address Gaustadalléen 21 Bygning H plan 2. Forskningsparken 0349 OSLO
Postal address Postboks 1022 Blindern 0315 OSLO
Other affiliations Department of Geosciences

Academic Interests

  • Aerosol - Cloud Interactions
  • Cloud microphysics
  • Explosive cyclones
  • Polar lows
  • Climate

Teaching

Higher education and employment history

Education

  • 1991: Dr.Scient. degree in meteorology at the University of Bergen
  • 1985: M.Sc. degree in meteorology at the University of Bergen

Positions held

  • 2000 - present: Professor, University of Oslo
  • 1993 - 2000: Associate Professor at the University of Oslo
  • 1992 - 1993: Postdoctoral Fellow at the Los Alamos National Laboratory, New Mexico, U.S.A.
  • 1991 - 1992: Scientist at the Norwegian Meteorological Institute, Oslo

 

Tags: Meteorology, Aerosol - Cloud Interactions, Cloud microphysics, Explosive cyclones, Polar lows, Climate change

Publications

  • Curry, Charles L.; Sillmann, Jana; Bronaugh, David; Alterskjær, Kari; Cole, Jason N.S.; Ji, Duoying; Kravitz, Ben; Kristjansson, Jon Egill; Moore, John C.; Muri, Helene Østlie; Niemeier, Ulrike; Robock, Alan; Tilmes, Simone & Yang, Shuting (2014). A multimodel examination of climate Extremes in an idealized geoengineering experiment . Journal of Geophysical Research - Atmospheres.  ISSN 0148-0227.  119(7), s 3900- 3923 . doi: 10.1002/2013JD020648
  • Kravitz, Ben; MacMartin, Douglas G.; Robock, Alan; Rasch, Philip J.; Ricke, Katharine L.; Cole, Jason N.S.; Curry, Charles L.; Irvine, Peter J.; Ji, Duoying; Keith, David W.; Kristjansson, Jon Egill; Moore, John C.; Muri, Helene Østlie; Singh, Balwinder; Tilmes, Simone; Watanabe, Shingo; Yang, Shuting & Yoon, Jin-Ho (2014). A multi-model assessment of regional climate disparities caused by solar geoengineering. Environmental Research Letters.  ISSN 1748-9326.  9(7) . doi: 10.1088/1748-9326/9/7/074013
  • Makkonen, Risto; Seland, Øyvind; Kirkevåg, Alf; Iversen, Trond & Kristjansson, Jon Egill (2014). Evaluation of aerosol number concentrations in NorESM with improved nucleation parameterization. Atmospheric Chemistry And Physics.  ISSN 1680-7316.  14(10), s 5127- 5152 . doi: 10.5194/acp-14-5127-2014
  • Alterskjær, Kari & Kristjansson, Jon Egill (2013). The sign of the radiative forcing from marine cloud brightening depends on both particle size and injection amount. Geophysical Research Letters.  ISSN 0094-8276.  40(1), s 210- 215 . doi: 10.1029/2012GL054286
  • Alterskjær, Kari; Kristjansson, Jon Egill; Boucher, Olivier; Muri, Helene Østlie; Niemeier, Ulrike; Schmidt, Hauke; Schulz, Michael & Timmreck, Claudia (2013). Sea-salt injections into the low-latitude marine boundary layer: The transient response in three Earth system models. Journal of Geophysical Research - Atmospheres.  ISSN 0148-0227.  118(21), s 12195- 12206 . doi: 10.1002/2013JD020432
  • Bentsen, Mats; Bethke, Ingo; Debernard, Jens B.; Iversen, Trond; Kirkevåg, Alf; Seland, Øyvind; Drange, Helge; Roelandt, Caroline; Seierstad, Ivar A.; Hoose, Corinna & Kristjansson, Jon Egill (2013). The Norwegian Earth System Model, NorESM1-M - Part 1: Description and basic evaluation of the physical climate . Geoscientific Model Development.  ISSN 1991-959X.  6(3), s 687- 720 . doi: 10.5194/gmd-6-687-2013
  • Iversen, Trond; Bentsen, Mats; Bethke, Ingo; Debernard, JB; Kirkevåg, Alf; Seland, Øyvind; Drange, Helge; Kristjansson, Jon Egill; Medhaug, Iselin; Sand, Maria & Seierstad, Ivar A. (2013). The Norwegian Earth System Model, NorESM1-M - Part 2: Climate response and scenario projections . Geoscientific Model Development.  ISSN 1991-959X.  6(2), s 389- 415 . doi: 10.5194/gmd-6-389-2013
  • Jones, Andy; Haywood, Jim M.; Alterskjær, Kari; Boucher, Olivier; Cole, Jason N.S.; Curry, Charles L.; Irvine, Peter J.; Ji, Duoying; Kravitz, Ben; Kristjansson, Jon Egill; Moore, John C.; Niemeier, Ulrike; Robock, Alan; Schmidt, Hauke; Singh, Balwinder; Tilmes, Simone; Watanabe, Shingo & Yoon, Jin-Ho (2013). The impact of abrupt suspension of solar radiation management (termination effect) in experiment G2 of the Geoengineering Model Intercomparison Project (GeoMIP). Journal of Geophysical Research - Atmospheres.  ISSN 0148-0227.  118(17), s 9743- 9752 . doi: 10.1002/jgrd.50762
  • Kirkevåg, Alf; Iversen, Trond; Seland, Øyvind; Hoose, Corinna; Kristjansson, Jon Egill; Struthers, H.; Ekman, A.M.L.; Ghan, S; Griesfeller, J.; Nilsson, ED & Schulz, M. (2013). Aerosol-climate interactions in the Norwegian Earth System Model-NorESM1-M. Geoscientific Model Development.  ISSN 1991-959X.  6(1), s 207- 244 . doi: 10.5194/gmd-6-207-2013
  • Kravitz, Ben; Caldeira, Ken; Boucher, Olivier; Robock, Alan; Rasch, P. J.; Alterskjær, Kari; Karam, Diana Bou; Cole, Jason; Curry, Charles L.; Haywood, J.M.; Irvine, Peter J.; Ji, D; Jones, Andy; Kristjansson, Jon Egill; Lunt, Daniel J.; Moore, John C.; Niemeier, U.; Schmidt, Hauke; Schulz, Michael; Singh, Balwinder; Tilmes, S.; Watanabe, Shingo; Yang, Shuting & Yoon, J.-H. (2013). Climate model response from the Geoengineering Model Intercomparison Project (GeoMIP). Journal of Geophysical Research - Atmospheres.  ISSN 0148-0227.  118(15), s 8320- 8332 . doi: 10.1002/jgrd.50646
  • Kravitz, Ben; Rasch, Philip J.; Forster, Piers M.; Andrews, Timothy; Cole, Jason N.S.; Irvine, Peter J.; Ji, Duoying; Kristjansson, Jon Egill; Moore, John C.; Muri, Helene Østlie; Niemeier, Ulrike; Robock, Alan; Singh, Balwinder; Tilmes, Simone; Watanabe, Shingo & Yoon, Jin-Ho (2013). An energetic perspective on hydrological cycle changes in the Geoengineering Model Intercomparison Project. Journal of Geophysical Research - Atmospheres.  ISSN 0148-0227.  118(23), s 13087- 13102 . doi: 10.1002/2013JD020502
  • Mc Innes, Harold; Kristjansson, Jon Egill; Rahm, Stephan; Røsting, Bjørn & Schyberg, Harald (2013). An observational study of an arctic front during the IPY-THORPEX 2008 campaign. Quarterly Journal of the Royal Meteorological Society.  ISSN 0035-9009.  139(677), s 2134- 2147 . doi: 10.1002/qj.2088
  • Niemeier, Ulrike; Schmidt, Hauke; Alterskjær, Kari & Kristjansson, Jon Egill (2013). Solar irradiance reduction via climate engineering: Impact of different techniques on the energy balance and the hydrological cycle. Journal of Geophysical Research - Atmospheres.  ISSN 0148-0227.  118(21), s 11905- 11917 . doi: 10.1002/2013JD020445
  • Sand, Maria; Berntsen, Terje Koren; Seland, Øyvind & Kristjansson, Jon Egill (2013). Arctic surface temperature change to emissions of black carbon within Arctic or midlatitudes. Journal of Geophysical Research - Atmospheres.  ISSN 0148-0227.  118(14), s 7788- 7798 . doi: 10.1002/jgrd.50613
  • Storelvmo, Trude; Kristjansson, Jon Egill; Muri, Helene Østlie; Pfeffer, Melissa Anne; Barahona, Diego & Nenes, A. (2013). Cirrus cloud seeding has potential to cool climate. Geophysical Research Letters.  ISSN 0094-8276.  40(1), s 178- 182 . doi: 10.1029/2012GL054201
  • Su, Hui; Jiang, Jonathan H.; Zhai, Chengxing; Perun, Vincent S.; Shen, Janice T.; Del Genio, Anthony; Nazarenko, Larissa S.; Donner, Leo J.; Horowitz, Larry W; Seman, Charles; Morcrette, Cyril; Petch, Jon; Ringer, Mark A.; Cole, Jason; von Salzen, Knut; Mesquita, Michel D Santos; Iversen, Trond; Kristjansson, Jon Egill; Gettelman, Andrew; Rotstayn, Leon; Jeffrey, Stephen; Dufresne, Jean-Louis; Watanabe, Masahiro; Kawai, Hideaki; Koshiro, Tsuyoshi; Wu, Tongwen; Volodin, Evgeny M.; L'Ecuyer, Tristan; Teixeira, João Paulo & Stephens, Graeme L. (2013). Diagnosis of regime-dependent cloud simulation errors in CMIP5 models using "A-Train" satellite observations and reanalysis data. Journal of Geophysical Research - Atmospheres.  ISSN 0148-0227.  118(7), s 2762- 2780 . doi: 10.1029/2012JD018575
  • Alterskjær, Kari; Kristjansson, Jon Egill & Seland, Øyvind (2012). Sensitivity to deliberate sea salt seeding of marine clouds - observations and model simulations. Atmospheric Chemistry And Physics.  ISSN 1680-7316.  12(5), s 2795- 2807 . doi: 10.5194/acp-12-2795-2012
  • Blechschmidt, Anne-Marlene; Kristjansson, Jon Egill; Ólafsson, Haraldur; Burkhart, John; Hodnebrog, Øivind & Rosenberg, P.D. (2012). Aircraft-based observations and high-resolution simulations of an Icelandic dust storm. Atmospheric Chemistry And Physics.  ISSN 1680-7316.  12(22), s 10649- 10666 . doi: 10.5194/acp-12-10649-2012
  • Føre, Ivan; Kristjansson, Jon Egill; Kolstad, Erik Wilhelm; Bracegirdle, Thomas J.; Sætra, Øyvind & Røsting, Bjørn (2012). A 'hurricane-like' polar low fuelled by sensible heat flux: high-resolution numerical simulations. Quarterly Journal of the Royal Meteorological Society.  ISSN 0035-9009.  138(666), s 1308- 1324 . doi: 10.1002/qj.1876
  • Røsting, Bjørn & Kristjansson, Jon Egill (2012). The Usefulness of Piecewise Potential Vorticity Inversion. Journal of Atmospheric Sciences.  ISSN 0022-4928.  69(3), s 934- 941 . doi: 10.1175/JAS-D-11-0115.1
  • Schmidt, H; Alterskjær, Kari; Bou Karam, Diana; Boucher, O; Jones, A; Kristjansson, Jon Egill; Niemeier, U.; Schulz, M.; Aaheim, Asbjørn; Benduhn, F.; Lawrence, M & Timmreck, C. (2012). Can a reduction of solar irradiance counteract CO2-induced climate change? – Results from four Earth system models. Earth System Dynamics.  ISSN 2190-4979.  3(1), s 63- 78 . doi: 10.5194/esd-3-63-2012
  • Føre, Ivan; Kristjansson, Jon Egill; Sætra, Øyvind; Breivik, Øyvind; Røsting, Bjørn & Shapiro, Melvyn A. (2011). The full life cycle of a polar low over the Norwegian Sea observed by three research aircraft flights. Quarterly Journal of the Royal Meteorological Society.  ISSN 0035-9009.  137(660), s 1659- 1673 . doi: 10.1002/qj.825
  • Koch, D.; Balkanski, Y.; Bauer, S. E.; Easter, R. C.; Ferrachat, S.; Ghan, Steven John; Hoose, Corinna; Iversen, Trond; Kirkevåg, Alf; Kristjansson, Jon Egill; Liu, X.; Lohmann, Ulrike; Menon, Surabi; Quaas, Johannes; Schulz, M.; Seland, Øyvind; Takemura, T. & Yan, N. (2011). Soot microphysical effects on liquid clouds, a multi-model investigation. Atmospheric Chemistry And Physics.  ISSN 1680-7316.  11(3), s 1051- 1064 . doi: 10.5194/acp-11-1051-2011
  • Kristjansson, Jon Egill (2011). Bedre varsling av ekstremvær i Arktis, I: Olav Orheim & Kristin Ulstein (red.),  Det norske bidraget, Polaråret 2007-2008.  Norges Forskningsråd.  ISBN 978-82-12-02902-6.  IPY-THORPEX.  s 56 - 59
  • Kristjansson, Jon Egill; Barstad, Idar; Aspelien, Trygve; Føre, Ivan; Godøy, Øystein Arne; Hov, Øystein; Irvine, Emma; Iversen, Trond; Kolstad, Erik Wilhelm; Nordeng, Thor Erik; Mc Innes, Harold; Randriamampianina, Roger; Reuder, Joachim; Sætra, Øyvind; Shapiro, Melvyn A.; Spengler, Thomas & Ólafsson, Haraldur (2011). The Norwegian IPY-THORPEX. Polar Lows and Arctic Fronts during the 2008 Andøya Campaign. Bulletin of The American Meteorological Society - (BAMS).  ISSN 0003-0007.  92(11), s 1443- 1466 . doi: 10.1175/2011BAMS2901.1
  • Kristjansson, Jon Egill; Thorsteinsson, Sigurdur; Kolstad, Erik Wilhelm & Blechschmidt, Anne-Marlene (2011). Orographic influence of east Greenland on a polar low over the Denmark Strait. Quarterly Journal of the Royal Meteorological Society.  ISSN 0035-9009.  137(660), s 1773- 1789 . doi: 10.1002/qj.831
  • Kulmala, Markku; Asmi, Ari; Lappalainen, H. K.; Baltensperger, Urs; Brenguier, Jean-Louis; Facchini, Cristina; Hansson, H.-C.; Hov, Øystein; O'Dowd, Colin; Pöschl, U.; Wiedensohler, A.; Boers, Reinout; Boucher, Olivier; de Leeuw, G.; Denier van der Gon, H.A.C.; Feichter, Johann; Krejci, R.; Laj, P.; Lihavainen, H.; Lohmann, Ulrike; McFiggans, Gordon; Mentel, Thomas; Pilinis, C.; Riipinen, Ilona; Schulz, Michael; Stohl, Andreas; Swietlicki, Erik; Vignati, Elisabetta; Alves, C.; Amann, M.; Ammann, M.; Arabas, Sylvester; Artaxo, P.; Baars, H.; Beddows, D.C.S.; Bergström, R.; Beukes, J. P.; Bilde, Merete; Burkhart, John Faulkner; Canonaco, F.; Clegg, S. L.; Coe, H.; Crumeyrolle, S.; D'Anna, Barbara; Decesari, S.; Gilardoni, S.; Fischer, M.; Fjæraa, Ann-Mari; Fountoukis, C.; George, C.; Gomes, L.; Halloran, P.; Hamburger, T.; Harrison, R. M.; Herrmann, H.; Hoffmann, T.; Hoose, Corinna; Hu, M.; Hyvärinen, A.; Hõrrak, U.; Iinuma, Y.; Iversen, Trond; Josipovic, M.; Kanakidou, Maria; Kiendler-Scharr, A.; Kirkevåg, Alf; Kiss, G.; Klimont, Z.; Kolmonen, P.; Komppula, M.; Kristjansson, Jon Egill; Laakso, L.; Laaksonen, A.; Labonnote, L.; Lanz, V. A.; Lehtinen, K. E. J.; Rizzo, L. V.; Makkonen, R.; Manninen, H. E.; McMeeking, G.; Merikanto, J.; Minikin, A.; Mirme, S.; Morgan, W. T.; Nemitz, E.; O'Donnell, D.; Panwar, T. S.; Pawlowska, H.; Petzold, A.; Pienaar, J. J.; Pio, C.; Plass-Duelmer, C.; Prévôt, A. S. H.; Pryor, S.; Reddington, C. L.; Roberts, G.; Rosenfeld, Daniel; Schwarz, J.; Seland, Øyvind; Sellegri, K.; Shen, X. J.; Shiraiwa, M.; Siebert, H.; Sierau, Berko; Simpson, David; Sun, J. Y.; Topping, D.; Tunved, Peter; Vaattovaara, P.; Vakkari, V.; Veefkind, J. P.; Visschedijk, A.; Vuollekoski, H.; Vuolo, R.; Wehner, B.; Wildt, J.; Woodward, S.; Worsnop, D. R.; van Zadelhoff, G.-J.; Zardini, A. A.; Zhang, K.; van Zyl, P. G.; Kerminen, V.-M.; Carslaw, K. S. & Pandis, S. N. (2011). General overview: European Integrated project on Aerosol Cloud Climate and Air Quality interactions (EUCAARI) - integrating aerosol research from nano to global scales. Atmospheric Chemistry And Physics.  ISSN 1680-7316.  11(24), s 13061- 13143 . doi: 10.5194/acp-11-13061-2011
  • Mc Innes, Harold; Kristiansen, Jørn; Kristjansson, Jon Egill & Schyberg, Harald (2011). The role of horizontal resolution for polar low simulations. Quarterly Journal of the Royal Meteorological Society.  ISSN 0035-9009.  137(660), s 1674- 1687 . doi: 10.1002/qj.849
  • Nygaard, Bjørn Egil Kringlebotn; Kristjansson, Jon Egill & Makkonen, Lasse (2011). Prediction of in-cloud icing conditions at ground level using the WRF model. Journal of Applied Meteorology and Climatology.  ISSN 1558-8424.  50(12), s 2445- 2459 . doi: 10.1175/JAMC-D-11-054.1
  • Sodemann, Harald; Pommier, M; Arnold, SR; Monks, SA; Stebel, Kerstin; Burkhart, John Faulkner; Hair, JW; Diskin, GS; Clerbaux, C; Coheur, PF; Hurtmans, D; Schlager, H; Blechschmidt, Anne-Marlene; Kristjansson, Jon Egill & Stohl, Andreas (2011). Episodes of cross-polar transport in the Arctic troposphere during July 2008 as seen from models, satellite, and aircraft observations. Atmospheric Chemistry And Physics.  ISSN 1680-7316.  11(8), s 3631- 3651 . doi: 10.5194/acp-11-3631-2011
  • Stjern, Camilla Weum; Stohl, Andreas & Kristjansson, Jon Egill (2011). Have aerosols affected trends in visibility and precipitation in Europe?. Journal of Geophysical Research - Atmospheres.  ISSN 0148-0227.  116 . doi: 10.1029/2010JD014603
  • Alterskjær, Kari; Kristjansson, Jon Egill & Hoose, Corinna (2010). Do anthropogenic aerosols enhance or suppress the surface cloud forcing in the Arctic?. Journal of Geophysical Research - Atmospheres.  ISSN 0148-0227.  115 . doi: 10.1029/2010JD014015
  • Hoose, Corinna; Kristjansson, Jon Egill & Burrows, SM (2010). How important is biological ice nucleation in clouds on a global scale?. Environmental Research Letters.  ISSN 1748-9326.  5(2) . doi: 10.1088/1748-9326/5/2/024009
  • Hoose, Corinna; Kristjansson, Jon Egill; Chen, Jen-Ping & Hazra, Anupam (2010). A Classical-Theory-Based Parameterization of Heterogeneous Ice Nucleation by Mineral Dust, Soot, and Biological Particles in a Global Climate Model. Journal of Atmospheric Sciences.  ISSN 0022-4928.  67(8), s 2483- 2503 . doi: 10.1175/2010JAS3425.1
  • Hoose, Corinna; Kristjansson, Jon Egill; Iversen, T; Kirkevåg, A; Seland, Øyvind & Gettelman, A (2009). Constraining cloud droplet number concentration in GCMs suppresses the aerosol indirect effect. Geophysical Research Letters.  ISSN 0094-8276.  36 . doi: 10.1029/2009GL038568
  • Kristjansson, Jon Egill; Thorsteinsson, Sigurdur & Røsting, Bjørn (2009). Phase-locking of a rapidly developing extratropical cyclone by Greenland's orography. Quarterly Journal of the Royal Meteorological Society.  ISSN 0035-9009.  135(645), s 1986- 1998 . doi: 10.1002/qj.497
  • Mc Innes, Harold; Kristjansson, Jon Egill; Schyberg, Harald & Røsting, Bjørn (2009). An assessment of a Greenland lee cyclone during the Greenland Flow Distortion experiment: An observational approach. Quarterly Journal of the Royal Meteorological Society.  ISSN 0035-9009.  135(645), s 1968- 1985 . doi: 10.1002/qj.524
  • Quaas, Johannes; Ming, Yin; Menon, Surabi; Takemura, T; Wang, M; Penner, Joyce; Gettelman, A; Lohmann, Ulrike; Bellouin, N; Boucher, Olivier; Sayer, AM; Thomas, GE; McComiskey, A; Feingold, Graham; Hoose, Corinna; Kristjansson, Jon Egill; Liu, Xiaohong; Iversen, Trond; Donner, LJ; Ginoux, PA; Stier, P; Grandey, B; Feichter, J; Sednev, I; Bauer, SE; Koch, D; Grainger, RG; Kirkevag, A; Iversen, T; Seland, O; Easter, R; Ghan, SJ; Rasch, PJ; Morrison, H; Lamarque, JF; Iacono, MJ; Kinne, S & Schulz, M (2009). Aerosol indirect effects - general circulation model intercomparison and evaluation with satellite data. Atmospheric Chemistry And Physics.  ISSN 1680-7316.  9(22), s 8697- 8717
  • Stjern, Camilla Weum; Kristjansson, Jon Egill & Hansen, AW (2009). Global dimming and global brightening - an analysis of surface radiation and cloud cover data in northern Europe. International Journal of Climatology.  ISSN 0899-8418.  29(5), s 643- 653 . doi: 10.1002/joc.1735
  • Kirkevag, A; Iversen, T; Seland, O; Debernard, J.; Storelvmo, Trude & Kristjansson, Jon Egill (2008). Aerosol-cloud-climate interactions in the climate model CAM-Oslo. Tellus. Series A, Dynamic meteorology and oceanography.  ISSN 0280-6495.  60 . doi: 10.1111/j.1600-0870.2008.00313.x
  • Kirkevåg, Alf; Iversen, Trond; Kristjansson, Jon Egill; Seland, Øyvind & Debernard, JB (2008). On the additivity of climate response to anthropogenic aerosols and CO2, and the enhancement of future global warming by carbonaceous aerosols. Tellus. Series A, Dynamic meteorology and oceanography.  ISSN 0280-6495.  60 . doi: 10.1111/j.1600-0870.2008.00308.x
  • Kristjansson, Jon Egill; Stjern, Camilla Weum; Stordal, Frode; Fjæraa, Ann Mari; Myhre, Gunnar & Jónasson, Kristján (2008). Cosmic rays, cloud condensation nuclei and clouds - a reassessment using MODIS data. Atmospheric Chemistry And Physics.  ISSN 1680-7316.  8, s 7373- 7387
  • Renfrew, Ian A.; Moore, G.W.Kent; Kristjansson, Jon Egill; Kristjánsson, Jón Egill; Ólafsson, Haraldur; Olafsson, Haraldur; Grey, S.L.; Gray, Suzanne L.; Petersen, Guðrún Nína; Bovis, Keir; Brown, Phil R.A.; Føre, Ivan; Haine, Thomas; Hay, Carling; Irvine, Emma A.; Lawrence, Andrew; Ohigashi, Tadayasu; Outten, Stephen; Pickart, Robert S.; Shapiro, Melvyn A.; Sproson, David; Swinbank, Richard; Woolley, Alan & Zhang, Shuwei (2008). The Greenland flow distortion experiment. Bulletin of The American Meteorological Society - (BAMS).  ISSN 0003-0007.  89(9), s 1307- 1324 . doi: 10.1175/2008BAMS2508.1
  • Røsting, Bjørn & Kristjansson, Jon Egill (2008). A successful resimulation of the 7-8 January 2005 winter storm through initial potential vorticity modification in sensitive regions. Tellus. Series A, Dynamic meteorology and oceanography.  ISSN 0280-6495.  60, s 604- 619 . doi: 10.1111/j.1600-0870.2008.00329.x
  • Stjern, Camilla Weum; Kristjansson, Jon Egill & Hansen, Aksel Walløe (2008). Global dimming and global brightening - an analysis of surface radiation and cloud cover data in northern Europe. International Journal of Climatology.  ISSN 0899-8418. . doi: 10.1002/joc.1735
  • Storelvmo, Trude; Kristjansson, Jon Egill & Lohmann, U (2008). Aerosol influence on mixed-phase clouds in CAM-Oslo. Journal of Atmospheric Sciences.  ISSN 0022-4928.  65(10), s 3214- 3230 . doi: 10.1175/2008JAS2430.1
  • Storelvmo, Trude; Kristjansson, Jon Egill; Lohmann, Ulrike; Iversen, Trond; Kirkevåg, Alf & Seland, Øyvind (2008). Modeling of the Wegener-Bergeron-Findeisen process - implications for aerosol indirect effects. Environmental Research Letters.  ISSN 1748-9326.  3 . doi: 10.1088/1748-9326/3/4/O45001
  • Myhre, Gunnar; Stordal, Frode; Johnsrud, M; Kaufman, YJ; Rosenfeld, D; Storelvmo, Trude; Kristjansson, Jon Egill; Berntsen, Terje Koren; Myhre, A & Isaksen, Ivar S A (2007). Aerosol-cloud interaction inferred from MODIS satellite data and global aerosol models. Atmospheric Chemistry And Physics.  ISSN 1680-7316.  7, s 3081- 3101
  • Textor, C; Schulz, M; Guibert, S; Kinne, S; Balkanski, Y; Bauer, S; Berntsen, Terje Koren; Berglen, Tore Flatlandsmo; Boucher, O; Chin, M; Dentener, F; Diehl, T; Feichter, J; Fillmore, D; Ginoux, P; Gong, S; Grini, Alf; Hendricks, J; Horowitz, L; Huang, P; Isaksen, Ivar S A; Iversen, Trond; Kloster, S; Koch, D; Kirkevåg, Alf; Kristjansson, Jon Egill; Krol, M; Lauer, A; Lamarque, JF; Liu, X; Montanaro, V; Myhre, Gunnar; Penner, JE; Pitari, G; Reddy, MS; Seland, O; Stier, P; Takemura, T & Tie, X (2007). The effect of harmonized emissions on aerosol properties in global models - an AeroCom experiment. Atmospheric Chemistry And Physics.  ISSN 1680-7316.  7, s 1699- 1723
  • Kinne, S; Schulz, M; Textor, C; Guibert, S; Balkanski, Y; Bauer, SE; Berntsen, Terje Koren; Berglen, Tore Flatlandsmo; Boucher, O; Chin, M; Collins, W; Dentener, F; Diehl, T; Easter, R; Feichter, J; Fillmore, D; Ghan, S; Ginoux, P; Gong, S; Grini, Alf; Hendricks, JE; Herzog, M; Horowitz, L; Isaksen, Ivar S A; Iversen, Trond; Kirkevåg, Alf; Kloster, S; Koch, D; Kristjansson, Jon Egill; Krol, M; Lauer, A; Lamarque, JF; Lesins, G; Liu, X; Lohmann, U; Montanaro, V; Myhre, Gunnar; Penner, JE; Pitari, G; Reddy, S; Seland, Øyvind; Stier, P; Takemura, T & Tie, X (2006). An AeroCom initial assessment - optical properties in aerosol component modules of global models. Atmospheric Chemistry And Physics.  ISSN 1680-7316.  6, s 1815- 1834
  • Penner, Joyce; Quaas, Johannes; Storelvmo, Trude; Takemura, T; Boucher, Olivier; Guo, H; Kirkevåg, Alf; Kristjansson, Jon Egill & Seland, Øyvind (2006). Model intercomparison of indirect aerosol effects. Atmospheric Chemistry And Physics.  ISSN 1680-7316.  6, s 3391- 3405
  • Røsting, Bjørn & Kristjansson, Jon Egill (2006). Improving simulations of severe winter storms by initial modification of potential vorticity in sensitive regions. Quarterly Journal of the Royal Meteorological Society.  ISSN 0035-9009.  132(621), s 2625- 2652 . doi: 10.1256/qj.05.188
  • Skeie, Ragnhild Bieltvedt; Kristjansson, Jon Egill; Olafsson, H & Rosting, B (2006). Dynamical processes related to cyclone development near Greenland. Meteorologische Zeitschrift.  ISSN 0941-2948.  15(2), s 147- 156

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  • Fikke, Svein; Kristjansson, Jon Egill & Nygaard, Bjørn Egil Kringlebotn (2008). Atmospheric icing of power networks - Modern meteorology and atmospheric icing. Springer Science+Business Media B.V..  ISBN 978-1-4020-8530-7.

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  • Otterå, Odd Helge; Tjiputra, Jerry; Kristjansson, Jon Egill; Muri, Helene Østlie & Grini, Alf (2014). Ocean circulation and heat content response to climate engineering by sulphur injection.
  • Aas, Kjetil Schanke; Berntsen, Terje Koren; Boike, Julia; Etzelmuller, Bernd; Kristjansson, Jon Egill; Schuler, Thomas; Stordal, Frode & Westermann, Sebastian (2013). Observed and simulated SEB at Ny-Ålesund, Svalbard.
  • Aas, Kjetil Schanke; Berntsen, Terje Koren; Boike, Julia; Etzelmuller, Bernd; Kristjansson, Jon Egill; Schuler, Thomas; Stordal, Frode & Westermann, Sebastian (2013). Observed and simulated surface energy budget at Ny-Ålesund, Svalbard.
  • Aas, Kjetil Schanke; Berntsen, Terje Koren; Boike, Julia; Etzelmuller, Bernd; Kristjansson, Jon Egill; Schuler, Thomas; Stordal, Frode & Westermann, Sebastian (2013). Observert og simulert bakke-energibalanse på Svalbard.
  • Etzelmuller, Bernd; Westermann, Sebastian; Berntsen, Terje Koren; Dunse, Thorben; Gisnås, Kjersti; Hagen, Jon Ove Methlie; Kristjansson, Jon Egill; Isaksen, Kjetil; Vikhamar Schuler, Dagrun; Schuler, Thomas; Stordal, Frode & Aas, Kjetil Schanke (2013). CRYOMET – Concept and Results for Bridging Models Between the Atmosphere and the Terrestrial Cryosphere (Glacier and Permafrost).
  • Westermann, Sebastian; Berntsen, Terje; Etzelmuller, Bernd; Gisnås, Kjersti; Hagen, Jon Ove Methlie; Kristjansson, Jon Egill; Schuler, Thomas & Stordal, Frode (2013). The CryoMet project - combining deterministic and probabilistic downscaling to model snow depth over a wide range of scales.
  • Engdahl, Bjørg Jenny K; Kristjansson, Jon Egill & Spengler, Thomas (2012). Why was the March 16-17 2008 Polar low poorly predicted?.
  • Røsting, Bjørn & Kristjansson, Jon Egill (2012). Reply to "Comments on 'The Usefulness of Piecewise Potential Vorticity Inversion'". Journal of Atmospheric Sciences.  ISSN 0022-4928.  69(9), s 2915- 2916 . doi: 10.1175/JAS-D-12-079.1
  • Westermann, Sebastian; Berntsen, Terje Koren; Etzelmuller, Bernd; Gisnås, Kjersti; Hagen, Jon Ove Methlie; Kristjansson, Jon Egill; Schuler, Thomas & Stordal, Frode (2012). The CryoMET project – combining deterministic and probabilistic downscaling to model snow depth over a wide range of scales.
  • Kristjansson, Jon Egill (2011, 04. november). Ekko. [Radio].  NRK P2.
  • Kristjansson, Jon Egill (2011). Klimamanipulering - blir det løsningen?.
  • Kristjansson, Jon Egill (2011). Årsaker til klimavariasjoner og simuleringer av disse, I: Nils Roll-Hansen (red.),  Status i klimaforskningen.  Novus Forlag.  ISBN 978-82-7099-643-8.  Kap.2.  s 29 - 45
  • Kristjansson, Jon Egill & Hoose, Corinna (2011). Ice nucleation by mineral dust, soot, bacteria, fungal spores and pollen: A new GCM parameterization.
  • Kristjansson, Jon Egill & Kolstad, Erik Wilhelm (2011). IPY-THORPEX. Quarterly Journal of the Royal Meteorological Society.  ISSN 0035-9009.  137(660), s 1657- 1658 . doi: 10.1002/qj.965
  • Kristjansson, Jon Egill; Stjern, Camilla Weum & Myhre, Gunnar (2011). Is there a link between cosmic rays, clouds and climate?.
  • Björkstén, Ulrika & Kristjansson, Jon Egill (2009, 04. september). Vetenskapsmagasinet. [TV].  Sveriges Television.
  • Connor, Steve & Kristjansson, Jon Egill (2009, 14. desember). Sun sets on sceptics' case against climate change.  The Independent.
  • Eggen, Espen & Kristjansson, Jon Egill (2009, 31. mars). Verdt å vite. [Radio].  NRK P2.
  • Hoose, Corinna; Kristjansson, Jon Egill; Arabas, Sylwester; Pawlowka, Hanna; Brenguier, Jean-Louis & Svensson, Gunilla (2009). Vertical velocity probability distributions simulated in the CAM-Oslo GCM.
  • Hoose, Corinna; Kristjansson, Jon Egill; Arabas, Sylwester & Pawlowska, Hanna (2009). IMPROVING THE PARAMETERIZATION OF IN-CLOUD UPDRAFT VELOCITY WITH THE AID OF EUCAARI-IMPACT DATA.
  • Hoose, Corinna; Kristjansson, Jon Egill; Chen, Jen-Ping & Hazra, Anupam (2009). ARE BIOAEROSOLS IMPORTANT CONTRIBUTORS TO GLOBAL ATMOSPHERIC ICE NUCLEATION?.
  • Hoose, Corinna; Kristjansson, Jon Egill; Chen, Jen-Ping & Hazra, Anupam (2009). Ice nucleation by mineral dust, soot, bacteria and pollen: GCM studies with new freezing parameterizations.
  • Hoose, Corinna; Kristjansson, Jon Egill; Iversen, Trond; Kirkevåg, Alf; Seland, Øyvind & Gettelman, A (2009). Constraining cloud droplet concentration in GCMs suppresses the aerosol indirect effect.
  • Jemterud, Torkild & Kristjansson, Jon Egill (2009, 14. desember). Verdt å vite. [Radio].  NRK P2.
  • Kristjansson, Jon Egill (2009). CO2, drivhusgasser og klima.
  • Kristjansson, Jon Egill (2009). Hvilken betydning har variasjoner i solaktivitet for global oppvarming?.
  • Kristjansson, Jon Egill (2009). Solar Activity and Clouds - Relevance for Climate Change.
  • Kristjansson, Jon Egill & Hoose, Corinna (2009). Vertical velocity probability distributions simulated in the CAM-Oslo GCM.
  • Kristjansson, Jon Egill; Hoose, Corinna & Alterskjær, Kari (2009). Aerosol indirect effect of the 'wrong' sign.
  • Kristjansson, Jon Egill; Hoose, Corinna; Alterskjær, Kari; Iversen, Trond; Kirkevåg, Alf; Seland, O; Chen, Jen-Ping & Hazra, Anupam (2009). Aerosol indirect effect of the 'wrong' sign. Geochimica et Cosmochimica Acta.  ISSN 0016-7037.  73(13), s A697- A697
  • Kristjansson, Jon Egill & Nygaard, Bjørn Egil Kringlebotn (2009). How sensitive is simulated icing to the treatment of cloud microphysics?.
  • Kristjansson, Jon Egill & Stjern, Camilla Weum (2009). Kosmisk stråling og klima. Klima.  ISSN 1504-8594.  (5), s 13- 13
  • Kristjansson, Jon Egill; Sætra, Øyvind; Irvine, Emma; Føre, Ivan; Dörnbrack, Andreas & Ólafsson, Haraldur (2009). Observations and modeling of polar lows and Arctic Fronts: Early Results from the Norwegian IPY-THORPEX.
  • Kristjansson, Jon Egill; Thorsteinsson, Sigurdur; Kolstad, Erik & Spengler, Thomas (2009). The influence of Greenland on cyclone evolution.
  • Kristjansson, Jon Gudni & Kristjansson, Jon Egill (2009, 15. desember). Spegillinn. [Radio].  RÚV Rás 1 (Islandsk radio, kanal 1).
  • Renfrew, Ian A. & Kristjansson, Jon Egill (2009). The Greenland Flow Distortion Experiment. Quarterly Journal of the Royal Meteorological Society.  ISSN 0035-9009.  135(645), s 1917- 1918 . doi: 10.1002/qj.534
  • Hoose, Corinna; Kristjansson, Jon Egill; Kirkevåg, Alf; Iversen, Trond; Seland, Øyvind & Storelvmo, Trude (2008). Sensitivity of the cloud droplet concentration in a GCM to the representation of subgrid-scale vertical velocity.
  • Hoose, Corinna; Kristjansson, Jon Egill & Svensson, Gunilla (2008). Sensitivity of cloud droplet activation to the vertical velocity probability distribution.
  • Iversen, Trond; Kirkevåg, Alf; Seland, Øyvind; Debernard, Jens B.; Kristjansson, Jon Egill & Storelvmo, Trude (2008). Aerosoler og klimaeffekten. Klima.  ISSN 1504-8594.  (4), s 40- 43
  • Kristjansson, Jon Egill; Stjern, Camilla Weum; Stordal, Frode; Myhre, Gunnar & Fjæraa, Ann-Mari (2008). Cosmic rays, clouds and climate - a reassessment using MODIS data.
  • Rommetveit, Astrid; Kristjansson, Jon Egill; Føre, Ivan & Sætra, Øyvind (2008, 29. desember). Jakta på polarstormen. [TV].  NRK1.
  • Sandvik, Anne D.; Flatøy, Frode & Kristjansson, Jon Egill (2008). Oppvarmingen i Arktis kan forsterkes av våtere skyer. Klima.  ISSN 1504-8594.  (3), s 38- 40
  • Storelvmo, Trude & Kristjansson, Jon Egill (2007). Partikler gir mindre avkjøling enn tidligere antatt. Cicerone.  ISSN 0804-0508.  16(2), s 27- 28
  • Storelvmo, Trude; Kristjansson, Jon Egill; Myhre, Gunnar; Johnsrud, Mona & Stordal, Frode (2007). Combined Observational and Modelling Based Study of the Aerosol Indirect Effect (COMBINE).
  • Storelvmo, Trude; Kristjansson, Jon Egill & Lohmann, Ulrike (2006). Aerosol influence on cold clouds in CAM-Oslo.
  • Kirkevåg, Alf; Iversen, Trond; Kristjansson, Jon Egill; Seland, Øyvind & Debernard, Jens (2006). Partikkelforurensninger maskerer den globale oppvarmingen. Cicerone.  ISSN 0804-0508.  15(2), s 26- 28

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Published Dec 10, 2013 07:55 PM