• Christiansen, B., 2005a: The shortcomings of nonlinear principal component analysis in identifying circulation regimes. J. Climate, 18 , 48144823.

    • Search Google Scholar
    • Export Citation
  • Christiansen, B., 2005b: On the bimodality of the planetary-scale atmospheric wave amplitude index. J. Atmos. Sci., 62 , 25282541.

  • Christiansen, B., 2007: Atmospheric circulation regimes: Can cluster analysis provide the number? J. Climate, in press.

  • Hansen, A. R., and S. Sutera, 1995: The probability density distribution of the planetary-scale atmospheric wave amplitude revisited. J. Atmos. Sci., 52 , 24632472.

    • Search Google Scholar
    • Export Citation
  • Malthouse, E. C., 1998: Limitations of nonlinear PCA as performed with generic neural networks. IEEE Trans. Neural Netw., 9 , 165173.

  • Monahan, A. H., 2000: Nonlinear principal component analysis by neural networks: Theory and application to the Lorenz system. J. Climate, 13 , 821835.

    • Search Google Scholar
    • Export Citation
  • Monahan, A. H., and J. C. Fyfe, 2007: Comments on “The shortcomings of nonlinear principal component analysis in identifying circulation regimes.”. J. Climate, 20 , 375377.

    • Search Google Scholar
    • Export Citation
  • Monahan, A. H., J. Fyfe, and G. M. Flato, 2000: A regime view of northern hemisphere atmospheric variability and change under global warming. Geophys. Res. Lett., 27 , 11391142.

    • Search Google Scholar
    • Export Citation
  • Monahan, A. H., L. Pandolfo, and J. Fyfe, 2001: The preferred structure of variability of the northern hemisphere atmospheric circulation. Geophys. Res. Lett., 28 , 10191022.

    • Search Google Scholar
    • Export Citation
  • Monahan, A. H., L. Pandolfo, and J. Fyfe, 2003: The vertical structure of wintertime climate regimes of the Northern Hemisphere extratropical atmosphere. J. Climate, 16 , 20052020.

    • Search Google Scholar
    • Export Citation
  • Teng, Q., A. H. Monahan, and J. C. Fyfe, 2004: Effects of time averaging on climate regimes. Geophys. Res. Lett., 31 .L22203, doi:10.1029/2004GL020840.

    • Search Google Scholar
    • Export Citation
All Time Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 37 21 0
PDF Downloads 4 4 0

Reply

View More View Less
  • 1 Danish Meteorological Institute, Copenhagen, Denmark
Restricted access

Corresponding author address: B. Christiansen, Climate Research Division, Danish Meteorological Institute, Lyngbyvej 100, DK-2100 Copenhagen ∅, Denmark. Email: boc@dmi.dk

Corresponding author address: B. Christiansen, Climate Research Division, Danish Meteorological Institute, Lyngbyvej 100, DK-2100 Copenhagen ∅, Denmark. Email: boc@dmi.dk

Supplementary Materials

    • Supplemental Materials (ZIP 2.37 MB)
Save