Papers

Martin Rypdal

Professor/Department Head

Department of Mathematics and Statistics

UiT The Arctic University of Norway

- Nilsen, T., J. P. Werner, D. V. Divine and M. Rypdal, Assessing the performance of the BARCAST climate field reconstruction technique for a climate with long-range memory, Climate of the Past, 2018. 14: p. 947-967. (Link to paper)

- Rypdal, V., E. D. Arnstad, K. Aalto, L. Berntson, M. Ekelund, A. Fasth, M. Glerup, T. Herlin, S. Nielsen, S. Peltoniemi, M. Zak, M. Rygg, M. Rypdal, E. Nordal, Predicting unfavorable long-term outcome in Juvenile Idiopathic Arthritis: Results from the Nordic cohort study, accepted in Arthritis Research & Therapy. (Link to paper)

- Rypdal, M., H.-B. Fredriksen, K. Rypdal and R. Steene, Emergent constraint on equilibrium climate sensitivity is an artefact of historical forcing (preprint)

- Kawasaki paper (preprint)

- Dengue paper (preprint)

- Fredriksen, H-.B. and M. Rypdal, Long-range persistence in global surface temperatures explained by linear multi-box energy balance models, Journal of Climate, 2017. 30: p. 7157-7168. (Link to paper)

- Theodorsen A., O. E. Garcia and M. Rypdal, Statistical properties of a filtered Poisson process with additive random noise: distributions, correlations and moment estimation, Physica Scripta, 2017, 92(5), 054002. (preprint)

- Rypdal, M. and K. Rypdal, Late Quaternary temperature variability described as abrupt transitions on a 1/f noise background. Earth System Dynamics, 2016. 7: p. 281-293. (Link to paper)

- Rypdal, M., Early-Warning Signals for the onsets of Greenland Interstadials and the Younger Dryas-Preboreal transition. Journal of Climate, 2016. 29(11): p. 4047-4056. (Link to paper)

- Løvsletten, O. and M. Rypdal, Statistics of Regional Surface Temperatures after 1900: Long-Range versus Short-Range Dependence and Significance of Warming Trends, Journal of Climate, 2016. 29(11): p. 4057-4068.

- Rypdal, K. and M. Rypdal, Comment on "Scaling regimes and linear/nonlinear responses of last millennium climate to volcanic and solar forcing" by S. Lovejoy and C. Varotsos. Earth System Dynamics Discussions, 2016.

- Rypdal, K., M. Rypdal, and S. Holm, Detection and attribution: how is the solar signal identified and distinguished from the response to other forcings?, in Earth's climate response to a changing Sun. 2015, EDP Sciences. p. 345.

- Rypdal, K., M. Rypdal, and H.-B. Fredriksen, Spatiotemporal long-range persistence in earth's temperature field: Analysis of stochastic-diffusive energy balance models. Journal of Climate, 2015. 28(21): p. 8379-8395.

- Rypdal, K. and M. Rypdal, Modeled impact of total solar irradiance (TSI) forcing, in Earth's climate response to a changing Sun. 2015, EDP Sciences. p. 345.

- Østvand, L., K. Rypdal, and M. Rypdal, Statistical significance of rising and oscillatory trends in global ocean and land temperature in the past 160 years. Earth System Dynamics Discussions, 2014. 5: p. 327-362.

- Østvand, L., T. Nilsen, K. Rypdal, D. Divine, V., and M. Rypdal, Long-range memory in internal and forced dynamics of millennium-long climate model simulations. Earth System Dynamics, 2014. 5(2): p. 295-308.

- Rypdal, M. and K. Rypdal, Long-memory effects in linear response models of Earth's temperature and implications for future global warming. Journal of Climate, 2014. 27(14): p. 5240-5258.

- Rypdal, M., E. Sirnes, O. Løvsletten, and K. Rypdal, Assessing market uncertainty by means of a time-varying intermittency parameter for asset price fluctuations. Physica A: Statistical Mechanics and its Applications, 2013: p. 8.

- Rypdal, M. and O. Løvsletten, Modeling electricity spot prices using mean-reverting multifractal processes. Physica A: Statistical Mechanics and its Applications, 2013. 392(1): p. 194-207.

- Rypdal, K., L. Østvand, and M. Rypdal, Long-range memory in Earth's surface temperature on time scales from months to centuries. Journal of Geophysical Research - Atmospheres, 2013. 118(13): p. 7046-7062.

- Rypdal, M. and K. Rypdal, Is there long-range memory in solar activity on timescales shorter than the sunspot period? Journal of Geophysical Research - Space Physics, 2012. 117: p. 11.

- Rypdal, K. and M. Rypdal, Stochastic properties of solar activity proxies. Astrophysics and Space Science Proceedings, 2012. 33: p. 227-232.

- Løvsletten, O. and M. Rypdal, Approximated maximum likelihood estimation in multifractal random walks. Physical Review E. Statistical, Nonlinear, and Soft Matter Physics, 2012. 85(4): p. 8.

- Rypdal, M. and K. Rypdal, Discerning a linkage between solar wind turbulence and ionospheric dissipation by a method of confined multifractal motions. Journal of Geophysical Research - Space Physics, 2011. 226: p. A02202.

- Rypdal, K., B. Klumov, B. Kozelov, R. Kube, and M. Rypdal, Exploring the Analogy Between Freezing of a 2D Yukawa Liquid and 2D Decaying Turbulence in Fluids. AIP Conference Proceedings, 2011. 1397(1): p. 72-77.

- Hall, C., K. Rypdal, and M. Rypdal, The E region at 69 degrees N, 19 degrees E: Trends, significances, and detectability. Journal of Geophysical Research - Space Physics, 2011. 116: p. A05309.

- Rypdal, M. and K. Rypdal, Testing Hypotheses about Sun-Climate Complexity Linking. Physical Review Letters, 2010. 104(12): p. 4.

- Rypdal, M. and K. Rypdal, 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. 115: p. 15.

- Rypdal, M. and K. Rypdal, Rypdal and Rypdal reply. A Reply to the Comment by Nicola Scafetta and Bruce J. West. Physical Review Letters, 2010. 105(21): p. 219802.

- Rypdal, M. and K. Rypdal, A stochastic theory for temporal fluctuations in self-organized critical systems. New Journal of Physics, 2008. 10: p. 123010/1-11.

- Rypdal, K., B.V. Kozelov, S. Ratynskaia, B. Klumov, C. Knapek, and M. Rypdal, Scale-free vortex cascade emerging from random forcing in a strongly coupled system. New Journal of Physics, 2008. 10: p. 093018.

- Rypdal, K., M. Rypdal, T. Zivkovic, and B.V. Kozelov, Complexity in astro and geospace systems: the turbulence versus SOC controversy. AIP Conference Proceedings, 2007. 932: p. 203-208.

- Kruglikov, B.S. and M. Rypdal, Entropy via multiplicity. Discrete and Continuous Dynamical Systems, 2006. 16: p. 395-410.

- Kruglikov, B.S. and M. Rypdal, Dynamics and entropy in the Zhang model of self-organized criticality. Journal of statistical physics, 2006. 122.

- Kruglikov, B.S. and M. Rypdal, A piece-wise affine contracting map with positive entropy. Discrete and Continuous Dynamical Systems, 2006. 16: p. 393-394.

- Rypdal, M. and K. Rypdal, Modelling temporal fluctuations in avalanching systems. Physical Review E, 2008. 78, 051127.