Now showing items 1-17 of 17

  • Pall, Pardeep; Tallaksen, Lena M.; Stordal, Frode (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Rain-on-snow (ROS) events are multivariate hydrometeorological phenomena that require a combination of rain and snowpack, with complex processes occurring on and within the snowpack. Impacts include floods and landslides, ...
  • Justino, Flavio; Kucharski, Fred; Lindemann, Douglas; Wilson, Aaron; Stordal, Frode (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    It has long been recognized that the amplitude of the seasonal cycle can substantially modify climate features in distinct timescales. This study evaluates the impact of the enhanced seasonality characteristic of the Marine ...
  • Bhattarai, Bikas Chandra; Burkhart, John; Stordal, Frode; Xu, Chong-Yu (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    In the Himalayan region, aerosols received much attention because they affect the regional as well as local climate. Aerosol Optical Depth (AOD) observation from satellite are limited in the Himalayan region mainly due to ...
  • Myhre, Gunnar; Stordal, Frode; Johnsrud, M; Kaufman, YJ; Rosenfeld, D; Storelvmo, Trude; Kristjansson, Jon Egill; Berntsen, Terje Koren; Myhre, A; Isaksen, Ivar S A (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2007)
    We have used the MODIS satellite data and two global aerosol models to investigate the relationships between aerosol optical depth (AOD) and cloud parameters that may be affected by the aerosol concentration. The relationships ...
  • Colette, Augustin; Granier, Claire; Hodnebrog, Øivind; Jakobs, Hermann; Maurizi, Alberto; Nyiri, Agnes; Bessagnet, Bertrand; D'Angiola, Ariela; D'Isidoro, Massimo; Gauss, Michael; Meleux, Frederik; Memmesheimer, Michael; Mieville, Aude; Rouil, Laurence; Russo, Felicita; Solberg, Sverre; Stordal, Frode; Tampieri, Francesco (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)
    We discuss the capability of current state-of-the-art chemistry and transport models to reproduce air quality trends and interannual variability. Documenting these strengths and weaknesses on the basis of historical ...
  • Isaksen, Ivar S A; Berntsen, Terje Koren; Dalsøren, Stig Bjørløw; Eleftheratos, K.; Orsolini, Yvan; Rognerud, Bjørg; Stordal, Frode; Søvde, Ole Amund; Zerefos, C; Holmes, Chris D. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
    Ozone and methane are chemically active climate-forcing agents affected by climate–chemistry interactions in the atmosphere. Key chemical reactions and processes affecting ozone and methane are presented. It is shown that ...
  • Hvidsten, Dag; Stordal, Frode; Lager, Malin; Rognerud, Bjørg; Kristiansen, Bjørn Erik; Matussek, Andreas; Gray, Jeremy; Stuen, Snorre (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    This is the first study to determine the density of questing Ixodes ricinus in northern Norway. It was performed at two sites in Brønnøy, which has been known for its tick permissive habitats for decades and is one of the ...
  • Myers-Smith, Isla H.; Kerby, Jeffrey T.; Phoenix, Gareth K.; Bjerke, Jarle W.; Epstein, Howard E.; Assmann, Jakob J.; John, Christian; Andreu-Hayles, Laia; Angers-Blondin, Sandra; Beck, Pieter S. A.; Berner, Logan T.; Bhatt, Uma S.; Bjorkman, Anne D.; Blok, Daan; Bryn, Anders; Christiansen, Casper Tai; Cornelissen, J. Hans C.; Cunliffe, Andrew M.; Elmendorf, Sarah C.; Forbes, Bruce C.; Goetz, Scott J.; Hollister, Robert D.; de Jong, Rogier; Loranty, Michael M.; Macias-Fauria, Marc; Maseyk, Kadmiel; Normand, Signe; Olofsson, Johan; Parker, Thomas C.; Parmentier, Frans-Jan W.; Post, Eric; Schaepman-Strub, Gabriela; Stordal, Frode; Sullivan, Patrick F.; Thomas, Haydn J.D.; Tømmervik, Hans; Treharne, Rachael; Tweedie, Craig E.; Walker, Donald A.; Wilmking, Martin; Wipf, Sonja (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
    As the Arctic warms, vegetation is responding, and satellite measures indicate widespread greening at high latitudes. This ‘greening of the Arctic’ is among the world’s most important large-scale ecological responses to ...
  • Benestad, Rasmus; van Oort, Bob; Justino, Flavio; Stordal, Frode; Parding, Kajsa; Mezghani, Abdelkader; Erlandsen, Helene B.; Sillmann, Jana; Pereira-Flores, Milton E (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    A methodology for estimating and downscaling the probability associated with the duration of heatwaves is presented and applied as a case study for Indian wheat crops. These probability estimates make use of empirical-statistical ...
  • Hodnebrog, Øivind; Solberg, Sverre; Stordal, Frode; Svendby, Tove Marit; Simpson, David; Gauss, Michael; Hilboll, Andreas; Pfister, G.; Turquety, Solène; Richter, Andreas; Burrows, John P.; Denier van der Gon, H. A. C. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)
    The hot summer of 2007 in southeast Europe has been studied using two regional atmospheric chemistry models; WRF-Chem and EMEP MSC-W. The region was struck by three heat waves and a number of forest fire episodes, greatly ...
  • Hilboll, A.; Richter, A.; Rozanov, A.; Hodnebrog, Øivind; Heckel, A.; Solberg, Sverre; Stordal, Frode; Burrows, J.P. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
    Satellite measurements of atmospheric trace gases have proved to be an invaluable tool for monitoring the Earth system. When these measurements are to be used for assessing tropospheric emissions and pollution, as for ...
  • Smith-Johnsen, Christine; Orsolini, Yvan; Stordal, Frode; Limpasuvan, Varavut; Pérot, Kristell (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    Sudden Stratospheric Warmings (SSW) affect the chemistry and dynamics of the middle atmosphere. Major warmings occur roughly every second winter in the Northern Hemisphere (NH), but has only been observed once in the ...
  • Smith-Johnsen, Christine; Marsh, Daniel R.; Orsolini, Yvan; Tyssøy, Hilde Nesse; Hendrickx, Koen; Sandanger, Marit Irene J.; Ødegaard, Linn-Kristine Glesnes; Stordal, Frode (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    Energetic electrons from the magnetosphere deposit their energy in the atmosphere and lead to production of nitric oxide (NO) in the mesosphere and lower thermosphere. We study the atmospheric NO response to a geomagnetic ...
  • Justino, Flavio; Lindemann, Douglas; Kucharski, Fred; Wilson, Aaron; Bromwich, David; Stordal, Frode (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2017)
    Marine Isotope Stage 31 (MIS31, between 1085 and 1055 ka) was characterized by higher extratropical air temperatures and a substantial recession of polar glaciers compared to today. Paleoreconstructions and model simulations ...
  • von Hobe, Marc; Bekki, S.; Borrmann, S.; Cairo, F.; D'Amato, F.; Di Donfrancesco, G; Dörnbrack, A.; Ebersoldt, A.; Ebert, M.; Emde, C.; Engel, I.; Ern, Manfred; Frey, W.; Genco, S.; Griessbach, S.; Grooß, J.-U.; Gulde, T.; Günther, G.; Hösen, E.; Hoffmann, L.; Homonnai, V.; Hoyle, Christopher; Isaksen, Ivar S A; Jackson, D.R.; Jánosi, I. M.; Jones, R.L.; Kandler, K; Kalicinsky, C.; Keil, A.; Khaykin, S. M.; Khosrawi, F.; Kivi, R.; Kuttippurath, J.; Laube, J. C.; Lefevre, F; Lehmann, R.; Ludmann, S.; Luo, BP; Marchand, M.; Meyer, J.; Mitev, V; Molleker, S.; Müller, R.; Oelhaf, H.; Olschewski, F.; Orsolini, Yvan; Peter, T.; Pfeilsticker, K.; Piesch, C.; Pitts, Mike C.; Poole, Lamont R.; Pope, F. D.; Ravegnani, F.; Rex, M.; Riese, M.; Rockmann, T; Rognerud, Bjørg; Roiger, A.; Rolf, C.; Santee, M. L.; Scheibe, M; Schiller, C.; Schlager, H.; Siciliani de Cumis, M.; Sitnikov, N.; Søvde, Ole Amund; Spang, R.; Spelten, N.; Stordal, Frode; Sumińska-Ebersoldt, O.; Ulanovski, A.; Ungermann, J.; Viciani, S.; Volk, C.M.; vom Scheidt, M.; von der Gathen, P.; Walker, K.; Wegner, T.; Weigel, R.; Weinbuch, S.; Wetzel, G.; Wienhold, F. G.; Wohltmann, I.; Woiwode, W.; Young, I. A. K.; Yushkov, V.; Zobrist, B.; Stroh, F. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2013)
    The international research project RECONCILE has addressed central questions regarding polar ozone depletion, with the objective to quantify some of the most relevant yet still uncertain physical and chemical processes and ...
  • Hvidsten, Dag; Frafjord, Karl; Gray, Jeremy S.; Henningsson, Anna Jonsson; Jenkins, Andrew; Kristiansen, Bjørn Erik; Lager, Malin; Rognerud, Bjørg; Slåtsve, Arne Martin; Stordal, Frode; Stuen, Snorre; Wilhelmsson, Peter (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    In north-western Europe, the common tick, Ixodes ricinus, is widely established, its distribution appears to be increasing and the spread of tick-borne diseases is of increasing concern. The project ‘Flått i Nord’ (Ticks ...
  • Guttu, Sigmund; Orsolini, Yvan J.; Stordal, Frode; Limpasuvan, Varavut; Marsh, Daniel R. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Energetic particle precipitation is one of the main processes by which the sun influences atmospheric composition and structure. The polar middle atmosphere is chemically disturbed by the precipitation-induced production ...