Variability in the Distribution of Solar Radiation Using Historical Weather Descriptions During the Tempo Famine Period

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  • 古天気を利用した天保期の推定日射量分布の変動

Abstract

<p>Based on weather descriptions recorded in 18 historical diaries, this study attempted to reconstruct monthly mean solar radiation data from 1821 to 1850. Moreover, it discusses inter-seasonal climate disasters and their effects, focusing on the 1830s’ Tempo Famine in Japan. The climate conditions in 1833, 1836, and 1838 were analyzed using the spatial distribution and inter-seasonal solar radiation variations as the percentage of the reconstructions from the 30-year mean. Solar radiation was low in the summers of 1833, 1836, and 1838, whereas the regional distribution of the values was different in each year.</p>

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