Olavi Kärner - Selected publications

Olavi Kärner

Main interests:

Time series analysis for climate studies

Satellite methods for cloud detection

Selected publications:
- 2011: Olavi Kärner and Chris de Freitas Modelling long-term variability in daily air temperature time series for Southern Hemisphere stations,
  Environ Modell Assess, DOI 10.1007/s10666-011-9269-z. kadefr-2011.pdf
- 2009: Olavi Kärner ARIMA representation for daily solar irradiance and surface air temperature time series.
  J. Atmospheric and Solar-Terrestrial Physics, vol. 71, 841-847. oksol-arima.pdf
- 2009: Joseph D'Aleo, Olavi Kärner, Richard C. Willson, and Ian Clark Solar Changes and the Climate.
  Critical Topics in Global Warming, Ed. by Ross McKitrick. The Fraser Institute. ISPM-app2f.pdf
- 2009: Olavi Kärner and Ross McKitrick Long-term persistence and nonstationarity in geophysical data.
  Critical Topics in Global Warming, Ed. by Ross McKitrick. The Fraser Institute. ISPM-app4f.pdf
- 2007: Olavi Kärner Temporal variability in local air temperature series shows negative feedback. Energy and Environment 18, 1057-1070. EE2007-ok.pdf. Misprints found ok-07-errors.pdf
- 2007: Olavi Kärner On a possibility of estimating the feedback sign of the earth climate system. Proc. Estonian Acad. Sci. Eng., 13, 260-268. E-Ac-Sci-07.pdf
- 2007: Piia Post and Olavi Kärner Simple statistical structure in time series for daily airflow characteristics. Environmetrics DOI: 10.1002.env/855 env_PPOK_fin.pdf
- 2005: Olavi Kärner Some examples of negative feedback in the Earth climate system. Central European J. of Physics vol 3 No 2, pp 190-208. cejpokfin.pdf
- 2003: Olavi Kärner and Karl-Göran Karlsson: Cloud Products Feasibility study in the Inner Arctic region. Part II Evaluation of variability in radiation and cloud data. Visiting scientist report. SMHI, Meteorologi Nr 107.
- 2002: Olavi Kärner: On non-stationarity and anti-persistency in global temperature series. J. Geophys. Res. 107, D20. JGR 2002 (pdf-file)
- 2002: Olavi Kärner: On total solar irradiance variability. Proceedings of the SOHO 11 Symposium "From Solar Min to Max: Half a Solar Cycle with SOHO". WRC/PMOD, Davos, Switzerland (ESA SP-508), 215-218. soho11.pdf
- 2001: Olavi Kärner and Larry Di Girolamo: On automatic cloud detection over ocean. Int. J. Remote Sensing 22, 3047-3053.
- 2001: Olavi Kärner: Comment on Hurst exponent. Geophys. Res. Lett, 28, 3825-3826. GL11832W01.pdf
- 2000: Olavi Kärner: A multidimensional histogram technique for cloud classification. Int. J. Remote Sensing, 21, 2463-2478.
- 1996: Olavi Kärner and Üllar Rannik: Stochastic models to represent the temporal variability of zonal average cloudiness. J. Climate, 9, 2718-2726.
- 1996: Olavi Kärner: Global temperature deviations as a random walk. J. Climate, 9, 656-658.
- 1993: Olavi Kärner: Global average net radiation sensitivity to cloud amount variations. J. Atmos. Sci. 50, 3994-4000.
- 1993: Olavi Kärner and Sirje Keevallik: Effective Cloud Cover Variations. A. Deepak Publishing, Hampton, VI, 210pp.
- 1993: Sirje Keevallik and Olavi Kärner (Eds) : IRS '92: Current Problems in Atmospheric Radiation. Proceedings of the International Radiation Symposium, Tallinn, Estonia 3-8 August 1992. A. Deepak Publishing, Hampton, VI, 567 pp.
- 1992: Olavi Kärner, Sirje Keevallik, Piia Post: A two-parameter approximation in cloudiness variability studies. Atmos. Res. 27, 231-252.
- 1990: Olavi Kärner and Sirje Keevallik: Gaussian components of cloud amount frequency distributions. Theor. Appl. Climatology 41, 69-79.
- 1989: O. Kärner Testing the radiation budget sensitivity to to cloud variations. Adv. Space Res. 9 105-109.
- 1987: O. Kärner Estimation of the radiation budget sensitivity to cloud variations. Adv. Space Res. 7 187-190.
- 1985: O. Avaste, S. Keevallik, O. Kärner: Statistical estimation of cloudiness parameters Adv. Space Res., 5 187-195.
- 1985: Marchuk G.I., K.Ya. Kondratyev, O.Avaste, V.V.Kozoderov, O. Kärner: Interannual variability of the radiation budget components on the basis of satellite measurements. DAN CCCP 280, 65-69. in Russian
- 1979: O.Avaste, G. Campbell, S. Cox, D. DeMasters, O. Kärner, K. Shifrin, E. Smith, E. Steiner, T. Vonder Haar: On the estimation of cloud-amount distribution above the world oceans. Atmos. Sci. Pap. No 309, Colorado State Univ. Fort Collins, CO, 73pp.
Participation in ISPM:
2007: Independent Summary for Policymakers of the IPCC Fourth Assessment Report
Published by The Fraser Institute, Vancouver, BC, Canada, 64pp. Full text: www.fraserinstitute.ca.
Coordinator: Ross McKitrick.
Writing Team:
Joseph D'Aleo, Madhav Khandekar, William Kininmonth, Christopher Essex, Wibjörn Karlén, Olavi Kärner, Ian Clark, Tad Murty, and James J. O'Brien.

Presentation of the document in the Atrium Restaurant, London, England 5. Feb. 2007.
From left: Andrei Illarionov, Wibjörn Karlén, Olavi Kärner, Ross McKitrick, and Mark Mullins.
Photo: By courtesy of Leah Costello (The Fraser Institute)

Participation in NIPCC:

NIPCC team in VERA Laboratory garden, Vienna 15. April 2007. From bottom left corner:
Tom V. Segalstad, Zbiegnew Jaworowski, Craig Idso, S. Fred Singer, Walter Kutschera, Chris de Freitas, Olavi Kärner, Hans Labohm, Joe D'Aleo, Martin Livermore, and Vincent Gray.
Photo: By courtesy of Tom V. Segalstad (Univ. of Oslo)
2008: Nature, not Human Activity, Rules the Climate
Summary for Policymakers of the Report of the Nongovermental International Panel on Climate Change
Published by The Heartland Institute, Chicago, Illinois U.S.A. 50pp.
Editor: Fred S. Singer
Contributors:
Warren Anderson, Dennis Avery, Franco Battaglia, Robert Carter, Richard Courtney, Joseph D'Aleo, Fred Goldberg, Vincent Gray, Kenneth Haapala, Klaus Heiss, Craig Idso, Zbigniew Jaworowski, Olavi Kärner, Madhav Khandekar, William Kininmouth, Hans Labohm, Christopher Monckton, Lubos Motl, Tom Segalstad, S. Fred Singer, Dick Thoenes, Anton Uriarte, Gerd Weber.

Participation in international scientific meetings:
- 2004: XXXV COSPAR Plenary Meeting, 18-25 July, Paris, France. Poster presentation together with Karl-Göran Karlsson Sea-ice extent analysis by means of CM-SAF cloud algorithm Abstract: paris.pdf
- 2004: I AERONET/PHOTONS symposium, 10-14 May, El Arenosillo, Spain. Poster by a science team. Its A4 version in a pdf file can be found here: sp2.pdf
- 2002: SOHO 11, 11-15 March, Davos, Switzerland. Poster: On Total Solar Irradiance Variability
- 2001: IAMAS 2001, 10-18 July, Innsbruck, Austria. Poster: Negative feedback in the earth climate system
- 1998: Nonlinear Variability in Geophysics and Astrophysics 4, 13-17 July, Roscoff, France.
- 1998: EGS'98, 20-24 April, Nice, France. Oral: A Multidimensional Histogram Method to Analyze AVHRR data
- 1997: Optical Remote Sensing of the Atmosphere, 10-14 February, Santa Fe, New Mexico.
- 1996: IRS'96, 19-24 August, Fairbanks, Alaska. Poster: Normal Mixture Approach to Cloud Detection
- 1996: EGS'96, 6-10 May, The Hague, The Nederlands. Oral: Normal Mixture Approach to Cloud Detection
- 1995: 1st Study Conference on BALTEX, August, Visby, Sweden.
- 1995: 6th International Meeting on Statistical Climatology, 19-23 June, Galway, Ireland. Oral:On Temporal Variability of the Zonal and Global Radiation and Cloudiness
- 1994: European Conference on the Global Energy and Water Cycle, 18-22 July, London, UK.
- 1994: NATO ARW Climate Sensitivity to Radiative Perturbations, 11-15 July, Paris, France. Oral: Modelling the Temporal Variability of Global Average Radiation Budget, Cloudiness and Temperature
- 1993: NATO ARW Global Precipitation and Climate Change, 26.09-1. October, Agelonde, France.
- 1993: IAMAP/IAHS'93, 11-23 July, Yokohama Japan.
- 1992: IRS'92, 3-8 August, Tallinn, Estonia. Oral: On the Earth Radiation Budget Sensitivity to Cloud Amount Variations
- 1990: XXVIII COSPAR Plenary Meeting, 25.06-7 July, The Hague, The Nederlands. Oral: On the Net Radiation Variability at the Top of the Atmosphere
- 1988: XXVII COSPAR Plenary Meeting, 18-29 July, Espoo, Finland. Oral: A Test for the Radiation Budget Sensitivity to Cloud Variations
- 1983: IUGG XVIII General Assembly, 15-27 August, Hamburg, Germany: Oral (coauthor Olev Avaste: A Harmonic Analysis of the Albedo, Outgoing Radiation and Cloudiness in the Tropical Belt
Hiljuti kirjutatud:
- 2007: Tartu ôhutemperatuuri pika-ajalise muutlikkuse seaduspärasusest. Publicationes Instituti Geographici Universitatis Tartuensis Nr. 102 (Toim. Jaak Jaagus), 71-82. t_arima07.doc
- 2006: kaasautor Helve Meitern: Ôhutemperatuuri muutustest Tartus viimase 200 aasta jooksul. Publicationes Geophysicales Universitatis Tartuensis Nr. 50 (Toim. Marko Kaasik ja Piia Post), 133-143. kar_meit.pdf
- 2005: Uut globaalsest soojenemisest (Kommentaar ajakirjale Horisont (sept. 2005) J. Hanseni jt artikli kohta)uusgw.pdf
- 2005: Millest räägivad temperatuuride aegread kogumikule Universum valguses ja vihmas (Toim. Rein Veskimäe ja Uno Veismann), Tallinn, Reves Grupp, 270-279. un.pdf
- 2004: Lävemetoodika alused pilvisust kirjeldavate suuruste määramiseks satelliidiandmetest Pidi ilmuma Publicationes Instituti Geographici Universitatis Tartuensis, Nr 95 (Toim. Tônu Oja), Tartu 2004, aga pole ilmunud ja vaevalt enam ilmub. pilvok.pdf
- 2003: Nupp kliimamuutuse kohta Maalehe tellimusel, (Maaleht nr 8; 19.02.2004): mleht.ps
- 2002: Klimatoloogia - aritmeetiline rahvaluule vôi ratsionaalne andmetöötlus. Publicationes Instituti Geographici Universitatis Tartuensis Nr 93 (Toim. Jaak Jaagus), 9-23. Tartu 2003. ok_03.pdf
- 2001: Arvutusi kliima muutlikkusest. Eesti Füüsika Seltsi Aastaraamat (2001): 59-76. fselts.ps
- 2000: Eesti orienteerumiskoondise 40 aastat (kaasautor Vello Viirsalu), Tôravere, 2000, 160 lk. Sisaldab kokkuvôtte kôikidest koondise vôistlustest aastatel 1960 - 1999 koos tulemustega, 18 värvikaarti ja rohkelt fotosid.