Saturday, February 27, 2010

Climate:City mouse and country mouse

Two interesting charts of the data that hint that urban and rural temperature data is being poorly combined.

Rural and Urban Temperature data

The adjusted data seems to overstate rural temperature increases
much more then urban adjustments for the heat islad effect.
Dr. Long suggests that NCDC’s adjustments eradicated the difference between rural and urban environments, thus hiding urban heating. The consequence:

“…is a five-fold increase in the rural temperature rate of increase and a slight decrease in the rate of increase of the urban temperature.”

The analysis concludes that NCDC “…has taken liberty to alter the actual rural measured values”.

A specfic example of data that looks to be poorly adjusted and seems to hint that the urban heat island effect has unfairly adjusted the "massaged" rural "data instead of eliminating localized heating in urban data.