Vardiman, L. and W. Brewer. 2010. Numerical Simulation of Precipitation in Yosemite National Park with a Warm Ocean: A Pineapple Express Case Study. ARJ 3:23-36.
I'm no physicist or climatologist, but I think I can summarize the basic idea. Given a tectonically active global Flood, the oceans would have been considerably warmer immediately after the Flood than they are now. That warmth led to increased evaporation, which led to increased storms. That would lead to snow buildup and glaciation in the higher altitudes and latitudes, thus what folks refer to as an "ice age."
In this new study, Vardiman and Brewer have simulated a higher sea surface temperature in the Pacific Ocean and the resulting increased precipitation in Yosemite and the Sierra Nevadas. Not surprisingly the authors conclude,
Warm sea-surface temperatures increased the precipitation above normal by as much as a factor of four. Based on the likely increase in precipitation rate and frequency of storms following the Genesis Flood, glaciers thousands of feet thick would have developed in a few hundred years.This is a nice extension of Vardiman's previous work in this area (here and here).