Current Research Projects

• Climate analysis (with Finn Lindgren, Ola Haug, Elisabeth Orskaug, Arnoldo Frigessi, Peter Craigmile, Veronica Berrocal, Ida Scheel, Yuting Ma, Richard Smith and others)
  • Uncertainty analysis of regional climate models
  • Uncertainty of rankings
  • Statistical detection (and maybe later attribution)

• Extreme climate events (with Peter Craigmile, Kate Calder, Montserrat Fuentes, Alan Gelfand and Brian Reich)
  • Searching climate signals in extreme temperatures
  • Multivariate extremes in space and time

    Project web pages

• Precipitation modeling (with Tamre Cardoso, Wendy Meiring)
  • Probability forecasting using a NHMM for precipitation
  • Hierarchical Bayes model for combining precipitation data from different sources

    Papers

• Covariance estimation (with Paul Sampson)
  • Bayesian nonparametric estimation of spae-time mean and spatial covariance

  • Papers

• Environmental standards (with Sofia Aberg and Nicola Loperfido) Urbino)
  • Statistical aspects of air quality standards

  • Paoers

• Biological monitoring (with Dean Billheimer, Grace Chiu)
  • Space-time models for proportions
  • Index measures for benthic invertebrates in streams

  • Papers

  Wavelets (with Don Percival, Debashis Mondal, Chris Bretherton and Peter Craigmile)
  • Applications to atmospheric science
  • Trend assessment
  • Space-time wavelets

  • Papers

• Hematopoiesis (with Jan Abkowitz, Youyi Fong, Sandra Catlin, Daniela Golinelli and Bryan Shepherd)
  • Stochastic models for hematopoiesis in animals
  • MCMC for hidden compartment models

  • Papers and data

• History of stochastic processes (with Tilmann Gneiting, Georg Lindgren, Thordis Thorarinsdottir)
  • History of point processes
  • The scientific basis for continuous time Markov chains
  • The origin of the Matern covariance function
  • Some history of mathematical statistics in Sweden

  • Papers

• Inference for stochastic processes (with Richard Lockhart, Thordis Thorarinsdottir, Michael Perlman)
  • Maximum likelihood estimation of the variance in a Bienayme-Galton-Watson process
  • Nonparametric Bayesian inference for point processes
  • Predicting Extinction or Explosion in a Galton-Watson Branching Process
  • Extinction or Explosion in a Galton-Watson Branching Process: Testing or Prediction?