Urban-Rural Insulation Correlation Study

摘要

The results of an analysis of simultaneous measurements of incident solar radiation from six locations in metropolitan St. Louis, Mo. are described. The measurements, part of the EPA-sponsored Regional Air Pollution Study, were taken continuously from September 1975 through March 1977 with pyranometers with all-wave and 395-nm and 695-nm cutoff filters. The objective of the report is to document typical urban-rural variations of incident solar radiation.nAtmospheric pollutants over the center of metropolitan St. Louis reduced incident all-wave solar irradiation by about 3%. Differences between urban and rural irradiation were about 1% greater than average during winter and 1% less than average in summer. At two suburban sites, the irradiation depletion aver¬aged 1% and 2% for summer and winter seasons, respectively.