Friday, March 25, 2011
Power of the Sun
This month's sunny and dry weather has provided a vivid illustration of the increasing power of the sunshine. The graphic at the left plots daily max and min temperatures for the Airport and Keystone Ridge thus far in March. A couple of interesting items. First, inversion strength, as quantified by the spread in overnight low temperatures has been reasonably constant. However, high temperatures have been rising faster at the Airport, with the last week or so showing the standard (i.e. dry adiabatic) decrease in temperatures with elevation. This contrasts with early in the month, when the sunshine was unable to completely break the inversion.