Universitetet i Tromsø - Startsida Universitetet i Tromsø - Startsida
 
Institutt for matematikk og statistikk (IMS)

Til NT-fakultetet


Engelsk personkort


Rypdal, Kristoffer

Professor
Matematikk og statistikk

Funksjon
Energi og klima - klima

Telefon
776 45149

Epost

Kontor/besøksadresse
Nordlysobservatoriet
NOBS FUN 205
AnsattKristofferRypdal

Mobil privat
47712863


Arbeider i CRIStin

  • Rypdal, Martin wibe; Sirnes, Espen; Løvsletten, Ola; Rypdal, Kristoffer. Assessing market uncertainty by means of a time-varying intermittency parameter for asset price fluctuations. Physica A: Statistical Mechanics and its Applications 2013. ISSN 0378-4371.
  • Zivkovic, Tatjana; Rypdal, Kristoffer. ENSO dynamics: Low-dimensional-chaotic or stochastic?. Journal of Geophysical Research - Atmospheres 2013; Volum 118. ISSN 0148-0227.s 2161 - 2168.s doi: doi:10.1002/jgrd.50190.
  • Rypdal, Kristoffer; Østvand, Lene; Rypdal, Martin wibe. Long-range memory in Earth's surface temperature on time scales from months to centuries. Journal of Geophysical Research - Atmospheres 2013. ISSN 0148-0227.s doi: DOI: 10.1002/jgrd.50399.
  • Rypdal, Martin wibe; Rypdal, Kristoffer. Is there long-range memory in solar activity on timescales shorter than the sunspot period?. Journal of Geophysical Research - Space Physics 2012; Volum 117. ISSN 0148-0227.s doi: 10.1029/2011JA017283.
  • Zivkovic, Tatjana; Rypdal, Kristoffer. Organization of the magnetosphere during substorms. Journal of Geophysical Research - Space Physics 2012; Volum 117 (A5:A05212). ISSN 0148-0227.s doi: 10.1029/2011JA016878.
  • Rypdal, Kristoffer. Global temperature response to radiative forcing: Solar cycle versus volcanic eruptions. Journal of Geophysical Research - Atmospheres 2012; Volum 117. ISSN 0148-0227.s doi: 10.1029/2011JD017283.
  • Rypdal, Kristoffer; Rypdal, Martin wibe. Stochastic properties of solar activity proxies. Astrophysics and Space Science Proceedings 2012; Volum 33. ISSN 1570-6591.s 227 - 232.s doi: 10.1007/978-3-642-30442-2_25.
  • Hall, Chris; Rypdal, Kristoffer; Rypdal, Martin wibe. The E region at 69 degrees N, 19 degrees E: Trends, significances, and detectability. Journal of Geophysical Research - Space Physics 2011; Volum 116. ISSN 0148-0227.s A05309 - .s doi: 10.1029/2011JA016431.
  • Rypdal, Kristoffer; Klumov, B.; Kozelov, Boris; Kube, Ralph; Rypdal, Martin wibe. Exploring the Analogy Between Freezing of a 2D Yukawa Liquid and 2D Decaying Turbulence in Fluids. AIP Conference Proceedings 2011; Volum 1397 (1). ISSN 0094-243X.s 72 - 77.s doi: 10.1063/1.3659743.
  • Zivkovic, Tatjana; Rypdal, Kristoffer. Low-dimensionality and predictability of solar wind and global magnetosphere during magnetic storms. Journal of Geophysical Research - Space Physics 2011; Volum 116. ISSN 0148-0227.s doi: 10.1029/2011JA016547.
  • Rypdal, Martin wibe; Rypdal, Kristoffer. Discerning a linkage between solar wind turbulence and ionospheric dissipation by a method of confined multifractal motions. Journal of Geophysical Research - Space Physics 2011; Volum 226. ISSN 0148-0227.s A02202 - .s doi: 10.1029/2010JA015907.
  • Rypdal, Martin wibe; Rypdal, Kristoffer. Testing Hypotheses about Sun-Climate Complexity Linking. Physical Review Letters 2010; Volum 104 (12). ISSN 0031-9007.s doi: 10.1103/PhysRevLett.104.128501.
  • Rypdal, Martin wibe; Rypdal, Kristoffer. Stochastic modeling of the AE index and its relation to fluctuations in B-z of the IMF on time scales shorter than substorm duration. Journal of Geophysical Research - Space Physics 2010; Volum 115. ISSN 0148-0227.s doi: 10.1029/2010JA015463.
  • Rypdal, Martin wibe; Rypdal, Kristoffer. Rypdal and Rypdal reply. A Reply to the Comment by Nicola Scafetta and Bruce J. West.. Physical Review Letters 2010; Volum 105 (21). ISSN 0031-9007.s 219802 - .s doi: 10.1103/PhysRevLett.105.21980.
  • Ratynskaia, Svetlana; Regnoli, G.; Klumov, B.; Rypdal, Kristoffer. Grain transport in three-dimensional soft dusty plasma states. Physics of Plasmas 2010; Volum 17 (3). ISSN 1070-664X.s doi: 10.1063/1.3334377.
  • Ratynskaia, Svetlana; Regnoli, G.; Rypdal, Kristoffer; Klumov, B.; Morfill, G.. Critical fluctuations and anomalous transport in soft Yukawa-Langevin systems. Physical Review E. Statistical, Nonlinear, and Soft Matter Physics 2009; Volum 80 (4). ISSN 1063-651X.s doi: 10.1103/PhysRevE.80.046404.
  • Rypdal, Martin wibe; Rypdal, Kristoffer. Modeling temporal fluctuations in avalanching systems. Physical Review E. Statistical, Nonlinear, and Soft Matter Physics 2008; Volum 78. ISSN 1063-651X.s 051127/1 - 11.s doi: 10.1103/PhysRevE.78.051127.
  • Rypdal, Kristoffer; Kozelov, Boris V; Ratynskaia, Svetlana; Klumov, B.; Knapek, C.; Rypdal, Martin wibe. Scale-free vortex cascade emerging from random forcing in a strongly coupled system. New Journal of Physics 2008; Volum 10. ISSN 1367-2630.s 093018 - .s doi: 10.1088/1367-2630/10/9/093018.
  • Zivkovic, Tatjana; Rypdal, Kristoffer. Experimental evidence of low-dimensional chaotic convection dynamics in a toroidal magnetized plasma. Physical Review E. Statistical, Nonlinear, and Soft Matter Physics 2008; Volum 77. ISSN 1063-651X.s 037401 - .s doi: 10.1103/PhysRevE.77.037401.
  • Rypdal, Martin wibe; Rypdal, Kristoffer. A stochastic theory for temporal fluctuations in self-organized critical systems. New Journal of Physics 2008; Volum 10. ISSN 1367-2630.s 123010/1 - 11.s doi: 10.1088/1367-2630/10/12/123010.
  • Zivkovic, Tatjana; Rypdal, Kristoffer. Evidence of low-dimensional chaos in magnetized plasma turbulence. The European Physical Journal Special Topics 2008; Volum 164. ISSN 1951-6355.s 157 - 164.s doi: 10.1140/epjst/e2008-00841-5.
  • Milovanov, Alexander; Rasmussen, Jens Juul; Rypdal, Kristoffer. Stretched-exponential decay functions from a self-consistent model of dielectric relaxation. Physics Letters A 2008; Volum 372. ISSN 0375-9601.s 2148 - 2154.s doi: 10.1016/j.physleta.2007.11.025.
  • Servidio, Sergio; Primavera, Leonardo; Carbone, Vincenzo; Noullez, Alain; Rypdal, Kristoffer. A model for two-dimensional bursty turbulence in magnetized plasmas. Physics of Plasmas 2008; Volum 15. ISSN 1070-664X.s doi: 10.1063/1.2825656.
  • Ratynskaia, Svetlana; Castaldo, C.; Rypdal, Kristoffer; Morfill, G.; de Angelis, U.; Pericolo-Ridolfini, V.; Rufoloni, A.; Giovanozzi, E.. Hypervelocity dust impacts in FTU scrape-off layer. Nuclear Fusion 2008; Volum 48. ISSN 0029-5515.s doi: 10.1088/0029-5515/48/1/015006.
  • Rypdal, Kristoffer; Garcia, Odd Erik. Reduced Lorenz models for anomalous transport and profile resilience. Physics of Plasmas 2007; Volum 14. ISSN 1070-664X.s doi: 10.1063/1.2435318.
  • Kozelov, Boris V; Rypdal, Kristoffer. Spatial scaling of optical fluctuations during substorm-time aurora. Annales Geophysicae 2007; Volum 25. ISSN 0992-7689.s 915 - 927.
  • Milovanov, Alexander; Rypdal, Kristoffer; Rasmussen, Jens Juul. Stretched exponential relaxation and ac universality in disordered dielectrics. Physical Review B. Condensed Matter and Materials Physics 2007; Volum 76. ISSN 1098-0121.s 104201-1 - .s doi: 10.1103/PhysRevB.76.104201.
  • Rypdal, Kristoffer; Rypdal, Martin wibe; Zivkovic, Tatjana; Kozelov, Boris V. Complexity in astro and geospace systems: the turbulence versus SOC controversy. AIP Conference Proceedings 2007; Volum 932. ISSN 0094-243X.s 203 - 208.
  • Castaldo, C.; Ratynskaia, Svetlana; Pericoli, V; de Angelis, U.; Rypdal, Kristoffer; Pieroni, L.; Giovannozzi, E.; Maddaluno, G.; Marmolino, C.; Rufoloni, A.; Tuccillo, A.; Kretschmer, M.; Morfill, G. E.. Diagnostics of fast dust particles in tokamak edge plasmas. Nuclear Fusion 2007; Volum 47. ISSN 0029-5515.s L5 - L9.s doi: 10.1088/0029-5515/47/7/L02.
  • Rypdal, Kristoffer; Ratynskaia, Svetlana. Plasma profiles, waves and anomalous transport in a purely toroidal plasma modified by a biased internal anode. Physica Scripta 2006; Volum T122. ISSN 0031-8949.s doi: 10.1088/00318949/2006/T122/010.
  • Ratynskaia, Svetlana; Rypdal, Kristoffer; Knapek, Christina; Khrapak, Sergei; Milovanov, Alexander; Ivlev, Alexei; Rasmussen, Jens Juul; Morfill, Gregor. Superdiffusion and viscoelastic vortex flows in a two-dimensional complex plasma. Physical Review Letters 2006; Volum 96. ISSN 0031-9007.s doi: 10.1103/PhysRevLett.96.105010.
  • Ratynskaia, Svetlana; Knapek, C; Rypdal, Kristoffer; Khrapak, S; Morfill, G.. Statistics of particle transport in a two-dimensional dusty plasma cluster. Physics of Plasmas 2005; Volum 12. ISSN 1070-664X.
  • Rypdal, Kristoffer; Ratynskaia, Svetlana. Onset of turbulence and profile resilience in the Helimak configuration. Physical Review Letters 2005; Volum 94. ISSN 0031-9007.s 22 - 26.
  • Rypdal, Kristoffer. Three-Field Model for Drift Waves in a Simple Magnetized Torus. Physica Scripta 2004; Volum T113. ISSN 0031-8949.s 121 - 129.
  • Rypdal, Kristoffer; Ratynskaia, S. Fluctuation threshold and profile resilience in weakly ionized plasma in a curved, unsheared magnetic field. Physics of Plasmas 2004; Volum 11 (10). ISSN 1070-664X.s 4623 - 4633.
  • Rypdal, Kristoffer; Paulsen, J. V.; Garcia, O. E.; Ratynskaia, Svetlana; Demidov, V.. Non-equilibrium quasi-stationary states in a magnetized plasma. Nonlinear processes in geophysics 2004; Volum 10. ISSN 1023-5809.s 139 - 149.
  • Rypdal, Kristoffer; Ratynskaia, Svetlana. Statistics of low-frequency plasma fluctuations in a simple magnetized torus. Physics of Plasmas 2003; Volum 10 (7). ISSN 1070-664X.s 2686 - 2696.
  • Rypdal, Kristoffer. Confinement and bursty transport in a flux-driven convection model with sheared flows. Plasma Physics and Controlled Fusion 2003; Volum 45. ISSN 0741-3335.s 919 - 932.
  • Demidov, V.; Ratynskaia, Svetlana; Rypdal, Kristoffer. Reducing influence of ion current on measurements of electron velocity istributions in plasmas. Review of Scientific Instruments 2001; Volum 72 (11). ISSN 0034-6748.s 4106 - .
  • Demidov, V.; Ratynskaia, Svetlana; Rypdal, Kristoffer. The analysis of probe I-V characteristics in a magnetized low-temperature plasma,. Contributions to Plasma Physics 2001; Volum 41 (5). ISSN 0863-1042.
  • Ratynskaia, Svetlana; Rypdal, Kristoffer; Demidov, V.. Measurements of plasma potential and electron temperature fluctuations in a low-temperature magnetized plasma. Contributions to Plasma Physics 2001; Volum 41 (5). ISSN 0863-1042.
  • Ratynskaia, Svetlana; Demidov, V.; Rypdal, Kristoffer. Probe measurements of electron temperature and density in strongly magnetized plasma}. Review of Scientific Instruments 2000 (71). ISSN 0034-6748.s 3383 - .
  • Ratynskaia, Svetlana; Demidov, V.; Rypdal, Kristoffer. A probe for measurements of electrostatic fluctuations in a low-temperature magnetized plasma. Review of Scientific Instruments 2000 (71). ISSN 0034-6748.s 1367 - .
  • Paulsen, J. V.; Rypdal, Kristoffer; Garcia, O. E.; Olsen, O. M.. Anomalous Transport in the Simple Torus .. Physica Scripta 2000; Volum T84. ISSN 0031-8949.s 203 - .
  • Rypdal, Kristoffer. Self-organized States in Sustained Toroidal Pinches. Physics of Plasmas 2000 (7). ISSN 1070-664X.s 4032 - .
  • Rypdal, Kristoffer; Demidov, V.; Ratynskaia, Svetlana. An electrostatic probe with end plugs for measurements in a magnetized plasma.. Review of Scientific Instruments 1999 (70). ISSN 0034-6748.s 4266 - .
  • Rypdal, Kristoffer; Demidov, V.; Ratynskaia, Svetlana; Armstrong, Richard. Probe measurements of electron energy distri-butions in a strongly magnetized low-pressure helium plasma.. Physics of Plasmas 1999 (6). ISSN 1070-664X.s 350 - .
  • Øynes, F. J.; Olsen, O.-M.; Pecseli, Hans L.; Fredriksen, Åshild; Rypdal, Kristoffer. Experimental study of low-frequency electrstatic fluctuations in a magnetized toroidal plasma. Physical Review E. Statistical, Nonlinear, and Soft Matter Physics 1998; Volum 57. ISSN 1063-651X.s 2242 - 2255.
  • Rypdal, Kristoffer; Brundtland, Terje. The Birkeland Terrella experiments and their importance for the modern synergy of laboratory and space plasmaphysics. Journal de Physique IV : Colloque 1998. ISSN 1155-4339.
  • Rypdal, Kristoffer; Fredriksen, Åshild; Olsen, O. M.; Hellblom, G.. Microwave Plasma in a Simple Magnetized Torus.. Physics of Plasmas 1997; Volum 4. ISSN 1070-664X.s 1468 - 1480.
  • Olsen, O. M.; Rypdal, Kristoffer; Hanssen, Alfred; Pecseli, Hans L.. Experimental Study of Low -Frequency Electrostatic Fluctuations in a Simple Magnetized Torus.. Bulletin- American Physics Societe 1997; Volum II (42).s 2048 - .
  • Rypdal, Kristoffer; Garcia, O. E.; Paulsen, J. V.. Anomalous Cross-Field Current and Fluctuating Equilibrium of Magnetized Plasmas.. Physical Review Letters 1997 (79). ISSN 0031-9007.s 1857 - .
  • Rypdal, Kristoffer; Grønvoll, E.; Øynes, F. J.; Fredriksen, Åshild; Armstrong, Richard; Trulsen, Jan; Pecseli, Hans L.. Confinement an turbulent transport in a plasma torus with no rotational transform. Plasma Physics and Controlled Fusion 1994; Volum 36. ISSN 0741-3335.s 1099 - 1114.
  • Milovanov, Alexander; Rypdal, Kristoffer; Rasmussen, Jens Juul. Fractional relaxation equation from ac universality in disordered solids, inin "Collective Phenomena in Macroscopic Systems" Proceedings of the Workshop (Villa Olmo, Como, Italy 4-6 December 2006) Edited by: G.Bertin, R.Pozzoli, M.Rome, and K.R.Sreenivasan. World Scientific 2007 ISBN 978-981-270-705-5.
  • Rypdal, Kristoffer; Rypdal, Martin wibe. A strategy for estimation of specific climate sensitivities from SSI reconstructions and paleoclimatic records. European Space Weather Week 2012-11-05 - 2012-11-10 2012.
  • Rypdal, Martin wibe; Rypdal, Kristoffer; Østvand, Lene; Løvsletten, Ola. Stochastic modeling of global temperature. Workshop on Complexity and Climates 2012-03-26 - 2012-03-30 2012.
  • Rypdal, Kristoffer. Climate Astrology versus Climate Dynamics: the Tale of two Paradigms. Workshop on Complexity and Climates 2012-03-26 - 2012-03-30 2012.
  • Rypdal, Kristoffer. Global temperature response to radiative forcing: solar cycle versus volcanic eruptions. EGU General Assembly 2012 (Geophysical Research Abstracts Vol. 14, EGU2012-3330, 2012) 2012-04-22 - 2012-04-27 2012.
  • Rypdal, Martin wibe; Rypdal, Kristoffer. Long-range persistence in the global mean surface temperature and the global warming "time bomb". EGU General Assembly 2012 (Geophysical Research Abstracts Vol. 14, EGU2012-3338, 2012) 2012-04-22 - 2012-04-27 2012.
  • Rypdal, Kristoffer. Global temperature response to radiative forcing: solar cycle versus volcanoes. Workshop on Complexity and Climates 2012-03-26 - 2012-03-30 2012.
  • Østvand, Lene; Løvsletten, Ola; Rypdal, Martin wibe; Rypdal, Kristoffer. Maximum Likelihood Estimates of trend- and memory-coefficients in climatic time series. European Geosciences Union General Assembly 2012 2012-04-22 - 2012-04-27 2012.
  • Rypdal, Kristoffer. Workshop on Complexity and Climates. Workshop on Complexity and Climates 2012-03-26 - 2012-03-30 2012.
  • Rypdal, Kristoffer; Rypdal, Martin wibe. Detection of climatic regime shifts from time-series data. Arctic Frontiers 2011-01-26 - 2011-01-28 2011.
  • Rypdal, Kristoffer; Kozelov, Boris; Zivkovic, Tatjana. Dirigerer planetene jordas klima? Omstridt hypotese består ikke enkle tester.. Fra Fysikkens Verden 2011; Volum 73 (2). ISSN 0015-9247.s 54 - 58.
  • Rypdal, Kristoffer; Rypdal, Martin wibe. Stochastic properties of solar activity proxies on time scales shorter than the sunspot period. International astrphysics forum 2011 2011-06-20 - 2011-06-24 2011.
  • Østvand, Lene; Rypdal, Kristoffer; Rypdal, Martin wibe. Universal Hurst exponent of local and global Earth temperature records?. European Geosciences Union General Assembly 2011 2011-04-03 - 2011-04-08 2011.
  • Rypdal, Kristoffer. Solas variabilitet og klimaet. Klima 2011 (3). ISSN 1504-8594.s 4 - 5.
  • Rypdal, Kristoffer; Rypdal, Martin wibe. Memory in stochastic component and multi-decadal trends of solar activity. European Geoscience Union General Assembly 2011-04-03 - 2011-04-08 2011.
  • Rypdal, Kristoffer. Global temperature response to radiative forcing: solar cycle versus volcanoes. Birkeland mini-workshop 2011-06-06 - 2011-06-06 2011.
  • Rypdal, Kristoffer. Solar variability and the climate. Klima 2011. ISSN 1504-8594.
  • Rypdal, Kristoffer. Global oppvarming - trendy eller bare naturlig?. Populærvitenskapelig forelesning 2010-10-29 - 2010-10-29 2010.
  • Rypdal, Martin wibe; Rypdal, Kristoffer. Discerning the structure of small-scale intermittency in plasma turbulence by a method of confined multifractal motions. Joint EU-UA TTF Workshop 2010-09-07 - 2010-09-10 2010.
  • Rypdal, Kristoffer. Feil, juks, eller er det noe jeg ikke har fått med meg?. 2010.
  • Rypdal, Kristoffer. Høna eller egget?. 2010.
  • Rypdal, Martin wibe; Rypdal, Kristoffer. Comment on "Testing Hypotheses about Sun-Climate Complexity Linking" Reply. Physical Review Letters 2010; Volum 105 (21). ISSN 0031-9007.s doi: 10.1103/PhysRevLett.105.219802.
  • Rypdal, Kristoffer. Skal vi skylde på sola?. Kunnskapsmagasinet Labyrint 2010 (4).
  • Zivkovic, Tatjana; Rypdal, Kristoffer. Recurrence plot techniques applied to solar wind- magnetosphere interaction. The Birkeland workshop 2010-05-27 - 2010-05-31 2010.
  • Zivkovic, Tatjana; Rypdal, Kristoffer. On the dynamics of the magnetosphere during geomagnetic storms and substorms. AGU Fall meeting 2010 2010-12-12 - 2010-12-18 2010.
  • Rypdal, Kristoffer; Rypdal, Martin wibe. Trends from Levy-walk statistics in solar activity – a link to multidecadal and secular trends in Earth climate?. AGU Fall Meeting 2010 2010-12-12 - 2010-12-18 2010.
  • Rypdal, Kristoffer. Arrangement av Outreach Session on Climate Change i forbindelse med The Birkeland Workshop. Outreach Session on Climate Change 2010-05-27 - 2010-05-27 2010.
  • Rypdal, Kristoffer. The Birkeland Workshop on Natural Complex Systems. The Birkeland Workshop on Natural Complex Systems 2010-05-27 - 2010-05-31 2010.
  • Rypdal, Kristoffer. Nyttårstaler og realiteter. 2010.
  • Rypdal, Kristoffer; Ratynskaia, Svetlana; Klumov, B.; Regnoli, G.. Flows and phase transitions in dusty plasmas. The 11th Granada Seminar on Computational and Statistical Physics 2010-09-13 - 2010-09-17 2010.
  • Rypdal, Kristoffer; Rypdal, Martin wibe. Er det en kompleksitetskobling mellom solaktiviteteten og jordens klima?. Birkeland-seminaret 2010-01-14 - 2010-01-14 2010.
  • Rypdal, Kristoffer. Is Climate Change Predictable?. Poulærvitenskapelig foredrag 2009-04-13 - 2009.
  • Rypdal, Kristoffer; Rypdal, Martin wibe. Complex system approaches to space and laboratory plasmas. Interrelationship between plasma experiments in laboratory and space (IPELS-2009) 2009-06-08 - 2009-06-12 2009.
  • Rypdal, Kristoffer. Gjesteblogg: "Ser du det samme som jeg?". 2009.
  • Rypdal, Kristoffer. En Felles Arena - den store lagkampen. Idretts og hjerneøvelser (realfag) for barn og ungdom 2009-09-26 - 2009-09-26 2009.
  • Rypdal, Kristoffer. Science and Art- møte med de Spullemannen. Foredrag, demonstrasjoner og utstilling 2009-04-14 - 2009-04-15 2009.
  • Rypdal, Kristoffer. Hvem har hørt om Emmy Noether?. 2009.
  • Rypdal, Kristoffer. Forsvarstale for det negative forskningsresultat. 2009.
  • Rypdal, Kristoffer. Men keiseren har jo ingen klær på!. 2009.
  • Rypdal, Kristoffer. Klimaet, sola og de moderne astrologene. 2009.
  • Rypdal, Kristoffer. Josef, Noah og julevandringer i Tromsøs uteliv. 2009.
  • Rypdal, Kristoffer. Norske Byggeklosser. 2009.
  • Rypdal, Kristoffer. En god penn. 2009.
  • Rypdal, Kristoffer. Gi klare styringssignaler!. 2009.
  • Rypdal, Kristoffer. Hva vil vi med Forskningsdagene?. 2009.
  • Rypdal, Kristoffer; Rypdal, Martin wibe; Zivkovic, Tatjana. Stochastic modeling of fluctuations in the solar wind - magnetospheric interaction. Chaos2009: Chaotic modeling and simulations 2009-06-01 - 2009-06-05 2009.
  • Rypdal, Kristoffer. Emergent complexity in soft Yukawa systems. Nordisk fysikermøte København 2009 2009-06-16 - 2009-06-18 2009.
  • Rypdal, Kristoffer; Rypdal, Martin wibe. Multifractal analysis of experimental time series - does it disclose or obscure the physics?. Workshop on "Nonlinear dynamics and structure formation in complex systems: challenges and open problems for modern physics" 2009-09-21 - 2009-09-22 2009.
  • Rypdal, Kristoffer. Årsaken til den globale temperaturøkningende siste 40 år - solaktivitet eller drivhusgasser?. Populærvitenskapelig foredrag 2008-10-24 - 2008-10-24 2008.
  • Rypdal, Kristoffer; Kozelov, Boris V; Rypdal, Martin wibe; Zivkovic, Tatjana. Stochastic modeling of fluctuations in large-scale properties of the solar wind or the magnetosphere-ionosphere system. American Geophysical Union Fall Meeting 2008-12-15 - 2008-12-19 2008.
  • Rypdal, Kristoffer; Zivkovic, Tatjana. Low-dimensional chaotic convection dynamics in the Helimak configuration. 35th European Physical Society Conference on Plasma Physics 2008-06-09 - 2008-06-14 2008.
  • Rypdal, Kristoffer; Rypdal, Martin wibe; Kozelov, Boris V. Bursty transport - can we distinguish turbulence from SOC-avalanching?. 13'th EU-US Transport Task Force Workshop 2008-09-01 - 2008-09-04 2008.
  • Zivkovic, Tatjana; Rypdal, Kristoffer; Østvand, Lene. On the connection between the multifractality and the predictability from the auroral index time series. 24rd Summer School and International Symposium on the Physics of Ionized Gases 2008-08-25 - 2008-08-31 2008.
  • Rypdal, Kristoffer. Villedende om klimaendringer. 2008.
  • Rypdal, Kristoffer. Gammelt tøv om klimaendringer. 2008.
  • Rypdal, Kristoffer. Klimasensitivitet og kompleksitet. 2008.
  • Rypdal, Kristoffer. Forskning-best fra sofakroken?. 2008.
  • Rypdal, Kristoffer. Diskvalifisert før start. 2008.
  • Rypdal, Kristoffer; Rypdal, Martin wibe. Rasende Dynamikk. 2008.
  • Rypdal, Kristoffer. Håp for Gaia. 2008.
  • Rypdal, Kristoffer. Reconciling turbulence and self-organized criticality. Invitert gjesteforelesning ved Alfvenlaboratoriet, KTH, Stockholm 2008-01-31 - 2008-01-31 2008.
  • Rypdal, Kristoffer; Zivkovic, Tatjana. Burst statistics of fluctuations in a simple magnetized torus configuration. EFTSOMP-2008 - Workshop on Electric Fields, Turbulence and Self-Organization in Magnetized Plasmas 2008-06-16 - 2008-06-17 2008.
  • Rypdal, Kristoffer. Complex Systems at The University of Tromsø - http://web.me.com/kristofferrypdal/Compex_Systems_Site/Home.html. 2008.
  • Rypdal, Kristoffer. Gjesteblogg: "Slik ble jeg en transleksuell". 2008.
  • Rypdal, Kristoffer. Gjesteblogg: "The Bank". 2008.
  • Rypdal, Kristoffer. Gjesteblogg: "Navigare necesse est!". 2008.
  • Rypdal, Kristoffer. Gjesteblogg: "Håp for Gaia". 2008.
  • Rypdal, Kristoffer; Rypdal, Martin wibe. En Felles Arena. 2008.
  • Rypdal, Kristoffer; Kozelov, Boris V; Ratynskaia, Svetlana; Kumov, B.; Knapek, C.. Scale-free vortex cascade emerging from random forcing in a dusty plasma monolayer. 5th International Conference on Physics of Dusty Plasmas 2008-05-18 - 2008-05-23 2008.
  • Zivkovic, Tatjana; Rypdal, Kristoffer; Østvand, Lene. Dynamics of the auroral index time series. American Geophysical Union Fall Meeting 2008-12-15 - 2008-12-19 2008.
  • Rypdal, Martin wibe; Rypdal, Kristoffer. A stochastic theory for temporal fluctuations in self-organized critical systems. American Geophysical Union Fall meeting 2007 2007-12-10 - 2007-12-14 2007.
  • Zivkovic, Tatjana; Rypdal, Kristoffer. Low dimensional chaos in experimental data from the Helimak device. Conference on 'Chaos, complexity and transport: Theory and applications' 2007-06-04 - 2007-06-08 2007.
  • Rasmussen, J. J.; Milovanov, Alexander; Rypdal, Kristoffer. Dielectric relaxation and ac universality in materials with disordered structure. New Trends in Nonlinear Physics 2007-08-19 - 2007-08-24 2007.
  • Zivkovic, Tatjana; Rypdal, Kristoffer. Routes to chaos in Helimak device. Det Norske Fysikermøtet 2007 2007-08-08 - 2007-08-10 2007.
  • Zivkovic, Tatjana; Rypdal, Kristoffer. Langevin approach to SOC. Complexity in plasma and geospace systems 2007-03-04 - 2007-03-08 2007.
  • Kozelov, Boris V; Rypdal, Kristoffer. Relative order of auroral structure during substorm activation. 34TH ANNUAL EUROPEAN MEETING ON ATMOSPHERIC STUDIES BY OPTICAL METHODS 2007-08-26 - 2007-08-31 2007.
  • Kozelov, Boris V; Rypdal, Kristoffer. Relative order of auroral structure during substorm activation. Physics of auroral phenomena 2007-06-06 - 2007-06-11 2007.
  • Rypdal, Kristoffer. Two-dimensional turbulence and self-organized criticality: the missing link. Invitert gjesteforelesning ved Universitetet for Miljø og Biologi på Ås 2007-11-15 - 2007-11-15 2007.
  • Rypdal, Kristoffer. Statistics of output from a locally driven BTW sandpile. Complexity in plasma and geospace systems 2007-03-04 - 2007-03-08 2007.
  • Rypdal, Kristoffer; Kozelov, Boris V; Rypdal, Martin wibe. Do sandpile models explain complex dynamics in solar flares and polar aurora?. American Geophysical Union Fall meeting 2007 2007-12-10 - 2007-12-14 2007.
  • Rypdal, Kristoffer; Zivkovic, Tatjana; Kozelov, Boris V; Rypdal, Martin wibe. Astro and geospace complexity: the SOC versus turbulence controversy. 6th IGPP Annual International Astrophysics Conference 2007-03-16 - 2007-03-22 2007.
  • Rypdal, Kristoffer. Critical fluctuations and scale-free avalanching in dusty plasma monolayer. Det Norske Fysikermøtet 2007 2007-08-08 - 2007-08-10 2007.
  • Rypdal, Kristoffer; Rypdal, Martin wibe. A stochastic theory for temporal toppling fluctuations in self-organized critical systems. Natural Complexity: data and theory in dialogue 2007-08-13 - 2007-08-17 2007.
  • Rypdal, Kristoffer; Servidio, Sergio; Kozelov, Boris V; Ratynskaia, Svetlana; Knapek, Christina. Turbulence, critical fluctuations and scale-free avalanching in a dusty plasma monolayer. Chaos, Complexity and Transport: Theory and Applications 2007-06-04 - 2007-06-08 2007.
  • Zivkovic, Tatjana; Rypdal, Kristoffer. Routes to chaos in magnetized plasma turbulence. Workshop on recurrence plots 2007-09-10 - 2007-09-12 2007.
  • Kozelov, Boris V; Rypdal, Kristoffer. Relative order of auroral transient structure during substorm activation. American Geophysical Union Fall meeting 2007 2007-12-10 - 2007-12-14 2007.
  • Rypdal, Kristoffer; Milovanov, Alexander; Kozelov, Boris; Rasmussen, Jens Juul. Charge conduction in porous media: a model of self-organized criticality. 20 years of Nonlinear Dynamics in Geosciences 2006-06-11 - 2006-06-16 2006.
  • Rypdal, Kristoffer. A three-dimensional dynamical system model for profile resilience and anomalous cross-field transport. 33 EPS Conference Conference of Plasma Physics paper P-1.168 2006-06-19 - 2006-06-23 2006.
  • Rypdal, Kristoffer. Birkeland og "Verdnenes Tilblivelse". Kåseri ved åpning av utstilling om Kristian Birkelands vitenskapelige arbeid 2006-11-24 - 2006-11-24 2006.
  • Milovanov, Alexander; Rypdal, Kristoffer; Rasmussen, Jens Juul. Fractional relaxation equation from ac universality in disordered solids. Collective Phenomena in Macroscopic Systems 2006-12-04 - 2006-12-06 2006.
  • Kozelov, Boris V; Rypdal, Kristoffer. Intermittence in auroral fluctuations during substorm. Physics of Auroral Phenomena 2006-02-23 - 2006-03-03 2006.
  • Rypdal, Kristoffer; Rypdal, Martin wibe. Hva bestemmer nivået?. Friidrett 2006; Volum 1 (6). ISSN 0332-9666.
  • Rypdal, Kristoffer; Kozelov, Boris. Scaling collapse and structure functions in TV data of substorm-time aurora. 8. International Conference on Substorms 2006-03-27 - 2006-03-31 2006.
  • Rypdal, Kristoffer. Reduced Lorenz Equations for Convective Cell Transport. 20 yaers of Nonlinear Dynamics in Geosciences 2006-06-11 - 2006-06-16 2006.
  • Zivkovic, Tatjana; Rypdal, Kristoffer. Helimak transport dynamics-low dimensional chaos or coloured noise?. 33. EPS conferaence on Plasma Physics 2006-06-19 - 2006-06-23 2006.
  • Rypdal, Kristoffer; Rasmussen, Jens Juul; Kozelov, Boris; Milovanov, Alexander. Self-organized invasion percolation of electrically charged particles in random media. 33 EPS Conference Conference of Plasma Physics paper P-2.050 2006-06-19 - 2006-06-23 2006.
  • Rypdal, Kristoffer. Profile robustness and routes to turbulence in the Helimak configuration. 32. EPS conference on Plasma Physics, 2005-06-27 - 2005-07-01 2005.
  • Rypdal, Kristoffer. Nonlocality and memory effects in grain dynamics on a 2D dust plasma quasi-crysta. 32. EPS conference on Plasma Physics 2005-06-27 - 2005-07-01 2005.
  • Rypdal, Kristoffer. Routes to interchange mode turbulence and chaos in plasmas confined by a helical magnetic field. "Interrelationship between plasma experments in laboratory and space" 2005-07-05 - 2005-07-08 2005.
  • Rypdal, Kristoffer. Intercange motions coherent structures, and intermittent transport in magnetized plasmas. "Interrelationship between plasma experments in laboratory and space" 2005-07-05 - 2005-07-08 2005.
  • Rypdal, Kristoffer. Scale-invariance in plasma and geospace systems. Det Norske Fysikermøtet 2005 2005-08-11 - 2005-08-14 2005.
  • Rypdal, Kristoffer. Superdiffusion and 2D fluid flows on a strongly ordered dusty plasma structure. Det Norske Fysikermøtet 2005 2005-08-11 - 2005-08-14 2005.
  • Rypdal, Kristoffer. Mechanisms of Confinement in Simple magnetised Toroidal Geometries. International Congress on Plasma Physics 2004-10-25 - 2004-10-29 2004.
  • Rypdal, Kristoffer. Plasma Profiles, Modes and Turbulence in a Simple Magnetized Torus Modified by a Biased Internal Anode or a Vertical Magnetic Field,. Nordisk plasmafysikksymposium 2004-10-04 - 2004-10-07 2004.
  • Rypdal, Kristoffer; Ratynskaia, Svetlana. Comment on "Statistical analysis of turbulent flux and intermittency in the nonfusion magnetoplasma Blaamann'' [Phys. Plasmas 10, 4335 (2003)]. Physics of Plasmas 2004; Volum 11. ISSN 1070-664X.s 3679 - 3681.
  • Rypdal, Kristoffer. Threshold behaciour for drift waves and flute modes in Blaamann. Invited talk at Dept. of Optics and Plasma Physics, Risø National Laboratory 2004-01-22 - 2004-01-22 2004.
  • Rypdal, Kristoffer; Ratynskaia, Svetlana. Electrostatic fluctuations in a plasma constricted by a curved magnetic field. 45'th Annual meeting of the Division of Plasma Physics, American Physical Society 2003-10-27 - 2003-10-31 2003.
  • Rypdal, Kristoffer; Ratynskaia, Svetlana. Statistics of dust particle trajectories on long timme scale, self affinity and memory effects. 30'th European Physical Society Conference on Plasma Physics and Controlled Fusion 2003-07-13 - 2003-07-18 2003.
  • Rypdal, Kristoffer; Ratynskaia, Svetlana. Statistics of fluctuations of a plasma in a curved magnetic field. Workshop on New Themes in Plasma and Fluid Turbulence 2003-05-13 - 2003-05-14 2003.
  • Rypdal, Kristoffer. Superdiffusion - long-range dependence or Levy-flights?. Invited talk, Max-Planck Inst, fur Extraterrestrische Physik, Garching, Germany 2003-03-10 - 2003-03-10 2003.
  • Rypdal, Kristoffer. Fluctuation threshold and profile resilience in plasmas constricted by a curved magnetic field. Inivited talk at West Virginia University 2003-10-22 - 2003-10-22 2003.
  • Rypdal, Kristoffer; Ratynskaia, Svetlana; Demidov, V.. Electrostatic modes and anomalous transport in low beta, toroidal plasma,. Poster at the Ninth European Fusion Theory Conference 2001-10-17 - 2001-10-19 2001.
  • Rypdal, Kristoffer; Ratynskaia, Svetlana; Demidov, V.. Critical profiles, turbulence and transport in the simple magnetized torus.. 2nd Workshop on Simulation of Plasma Turbulence and Comparison with experiment 2001-03-01 - 2001-03-01 2001.
  • Ratynskaia, Svetlana; Tomchuk, B. P.; Rypdal, Kristoffer; Gresillon, D. M.. Fluctuation induced plasma transport across B-Field: on the role of diffusive and convective transport, Europhysics conference abstracts. 29th European Physical Society Conference on Controlled Fusion and Plasma Physics , paper P3.096 2001-06-18 - 2001-06-22 2001.
  • Rypdal, Kristoffer; Ratynskaia, Svetlana; Demidov, V.; Paulsen, J. V.; Garcia, O. E.. Critical profiles and turbulent transport in a magnetized plasma. 4'th Workshop on Nonlinear Waves in Space Plasmas 2001-06-16 - 2001-06-21 2001.
  • Ratynskaia, Svetlana; Demidov, V.; Rypdal, Kristoffer. Observations of anomalous transport in a simple magnetized torus. International Conference on Plasma Physics 2000-10-23 - 2000-10-27 2000.
  • Rypdal, Kristoffer; Paulsen, J. V.; Garcia, O. E.; Ratynskaia, Svetlana. Flux driven turbulence and critical gradients in the simple torus. International Conference on Plasma Physics 2000-10-23 - 2000-10-27 2000.
  • Rypdal, Kristoffer. Fluctuations and transport in the Blaamann torus - theory, simulations and experiments.. Transport Task force Turbulence Workshop 1999-03-03 - 1999-03-04 1999.
  • Demidov, V.; Armstrong, Richard; Fredriksen, Åshild; Rypdal, Kristoffer. Probe studies in the toroidal device Blaamann.. International Congress of Plasma Physics 1998-06-29 - 1998-07-03 1998.
  • Garcia, O. E.; Paulsen, J. V.; Rypdal, Kristoffer. Theory and Simulation of Turbulence in Toroidal Plasmas-I.. 1998 International Congress of Plasma Physics 1998-06-29 - 1998-07-03 1998.
  • Paulsen, J. V.; Garcia, O. E.; Rypdal, Kristoffer. Theory and Simulation of turbulence in Toroidal Plasmas-II.. 1998 International Congress of Plasma Physics 1998-06-29 - 1998-07-03 1998.
  • Fredriksen, Åshild; Aanesland, Ane; Hellblom, G.; Rypdal, Kristoffer. ECR-device for studies of plasma for thin film deposition.. 1998 International Congress of Plasma Physics 1998-06-29 - 1998-07-03 1998.
  • Rypdal, Kristoffer. Anomalous currents in laboratory and space plasmas.. URSI General Assembly 1998-01-02 - 1998-01-05 1998.
  • Rypdal, Kristoffer; Garcia, O. E.; Paulsen, J. V.. Understanding Cosmic Currents Systems.. 1998 International Congress of Plasma Physics 1998-06-29 - 1998-07-03 1998.
  • Korotaev, K .N.; Savjolov, A. S.; Armstrong, Richard; Rypdal, Kristoffer; Harang, O.. Measurements of Spatial Distribution of Visible Radiation from hydrogen Plasma in Toroidal Blaamann Device.. Physics of Plasmas & Plasma Technology 1997-09-15 - 1997-09-19 1997.
  • Rypdal, Kristoffer. Anomalous Crossfield Currents in Laboratory and Space.. Workshop on Interrelationship between Plasma Experiments in Laboratory and Space 1997-06-23 - 1997-07-27 1997.
  • Rypdal, Kristoffer. Simulation of Electrostatic Flutemode Turbulence.. Topical Conf. on Plasma Physics 1997-11-10 - 1997-11-14 1997.
  • Rypdal, Kristoffer. Anomalous Currents in Magnetized Plasma.. 32nd Nordic Plasma and Gas Discharge Symposium 1997-03-02 - 1997-03-05 1997.
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