A Matern model of the spatial covariance structure of point rain rates Academic Article uri icon


  • 2014, Springer-Verlag Berlin Heidelberg. It is challenging to model a precipitation field due to its intermittent and highly scale-dependent nature. Many models of point rain rates or areal rainfall observations have been proposed and studied for different time scales. Among them, the spectral model based on a stochastic dynamical equation for the instantaneous point rain rate field is attractive, since it naturally leads to a consistent spacetime model. In this paper, we note that the spatial covariance structure of the spectral model is equivalent to the well-known Matrn covariance model. Using high-quality rain gauge data, we estimate the parameters of the Matrn model for different time scales and demonstrate that the Matrn model is superior to an exponential model, particularly at short time scales.

published proceedings


author list (cited authors)

  • Sun, Y., Bowman, K. P., Genton, M. G., & Tokay, A.

citation count

  • 15

complete list of authors

  • Sun, Ying||Bowman, Kenneth P||Genton, Marc G||Tokay, Ali

publication date

  • July 2014