California Energy Commission's California Climate Change Center
Climate model simulations were used to investigate possible changes in regional climate over California. To accomplish this, the model simulations were downscaled from the coarse global climate model resolution (usually 150 kilometers [km] or greater horizontal grid spacing) to about 12 km horizontal grid spacing over the California region, using statistical techniques. All simulations indicate that hot daytime and nighttime temperatures (heat waves) increase in frequency, magnitude, and duration from the historical period and during the projected period through the first half of the twenty-first century. The projected precipitation is marked by considerable variability between years and decades and the rise of mean sea level would provoke an increase in extreme events. Such events become much more frequent and have longer durations than has been seen historically.
Sea level rise Temperature
Assessment Data, tools, and research