¥How much variability in RCM simulations
is due to settings of closure parameters?
¥Parameters that
control the behavior of parameterizations.
¥Construct an ensemble in which each
member uses a different value for a closure parameter or parameters:
¥Must truly be an
adjustable parameter (e.g., donÕt vary gravitational acceleration or specific
heat).
¥Parameter value should
be reasonable.
¥Here: in the Grell
scheme of RegCM2, vary
¥ Dp = lifting depth threshold for trigger
¥ t = time scale for release of convective instability