A11N-02:
Promise and Limitations of PDF Based Parameterizations
Monday, 15 December 2014: 8:15 AM
David A Randall and Grant J Firl, Colorado State University, Atmospheric Science, Fort Collins, CO, United States
Abstract:
Several global modeling centers are using or testing parameterizations of small-scale transports based on probability density functions (PDFs) with assumed distributions. The parameterizations are applied to turbulence and small-scale convection, and sometimes deep convection. Two issues are discussed in this talk. The first is the degree to which the proposed PDFs can accurately represent quantities of interest. The second is how to determine the numerous parameters needed to describe the PDFs.
