Civil and Environmental Engineering at Duke

publications by Amilcare Porporato.


Papers Published

  1. Perona, P. and D'Odorico, P. and Porporato, A. and Ridolfi, L., Reconstructing the temporal dynamics of snow cover from observations, Geophysical Research Letters, vol. 28 no. 15 (2001), pp. 2975 - 2978 [2000GL006126] .
    (last updated on 2007/04/09)

    Abstract:
    A nonlinear differential equation for the description of the mean annual behavior of snow depth at a point is reconstructed from measured time series of temperature, snow fall, and snow cover, using the so-called Trajectory Method proposed by Eisenhammer et al. [1991]. The temperature and snow fall are used as independent variables of a polynomial equation with nonlinearities up to the third degree. The reconstructed model not only reproduces the original data very well, but also captures the main behavior of the system when forced by different climatic conditions.

    Keywords:
    Snowfall measurement;Climate change;Temperature measurement;Differential equations;

 

Department of Civil and Environmental Engineering | Pratt School of Engineering | Duke University
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