わが国の紫外域日射量マップの提案 : 高分子系建築材料の耐久性に関する研究(その1)

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Ultraviolet solar radiation is known as one of the most serious degradation factors of the polymeric building materials such as plastics, roofings and paints. Authors measured hourly global u. v. solar radiation, U_<hour> (wavelength range of 305 〜 395 nm) in Tsukuba, Ibaraki Pref. at latitude 36°7'38" N and longitude 140°4'39" E for one year, and expressed as a function of hourly global entire radiation, S_<hour> (305 〜 2800 nm) and solar altitude, Z as follows : U_<hour> = AZ^<β_1> S_<hour> + BZ^<β_2>S<hour>α where A, B, α, β_1, β_2 are constants. Applying this equation to the solar energy calculated from the percentage of sunshine at 141 meteorological observatories in Japan, u. v. solar radiation energy can be estimated. Then contour lines of obtained monthly or yearly data are plotted. We can discuss the regional differeneses of the durabilities of polymeric building materials based on these maps.
社団法人日本建築学会の論文
1987-11-30