日照時間による水平面全天日射量および法線面直達日射量の推定と連続曇天日の発生率

概要

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To utilize solar energy for heat engineering purposes, the data of insolations and sunshine hours in Kitami and Sapporo during the eight years from 1978 to 1985 were processed and analyzed as daily values. The data of insolations of Kitami are the values measured by the authors at the Kitami Institute of Technology, and those in Sapporo are the values observed at the Sapporo Meteorological Observatory. The number of sunshine hours for both cities were the official data published by the Meteorological Agency. Consequently, the correlation equations to estimate the horizontal-total and normal-direct insolations from the sunshine hours, the rate of clear days to total days in a month and the frequency distribution of the continuous cloudy days were obtained.
1987-12-25