Cherry blossom phenological data since the seventeenth century for Edo (Tokyo), Japan, and their application to estimation of March temperatures
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The changes in March mean temperatures in Edo (Tokyo), Japan, since the seventeenth century, were reconstructed using phenological data for the cherry blossoms of Prunus jamasakura deduced from old diaries and chronicles. The observations of the time of full blossoming and of cherry blossom viewing parties were acquired and used to construct a full-blossoming phenological data series for P. jamasakura. Phenological data from 207 of the years from 1601 to 1905 were used for this study. The reconstructed temperatures suggested the existence of two cold periods (the second half of the seventeenth century and the beginning of the nineteenth century), during which times the estimated March mean temperatures were about 4 °C and 5 °C, respectively. These two cold periods at Edo coincided with those reconstructed at Kyoto in previous studies. These cold periods coincided with two less extreme periods, the Maunder and Dalton minima, in the long-term solar variation cycle.
KeywordsClimate reconstruction Edo (Tokyo) Phenology Cherry blossom Prunus jamasakura Solar variation
This research was partially supported by a grant from the Ministry of Education, Science, Sports and Culture (Grant-in-Aid for Scientific Research (C), 23501247) from 2011 to 2014.
- Aono Y (1998) Climatic change in March temperature deduced from phenological record for flowering of cherry tree in Tokyo since the late 18th century. Bull Osaka Pref Univ Ser B 50:11–19Google Scholar
- Aono Y (2012) Long-term change in climate and floral phenophase. Chikyu Kankyo (Glob Environ) 17:21–29 (in Japanese)Google Scholar
- Ge Q, Zheng J, Fang X, Man Z, Zhang X, Zhang P, Wang W-C (2003) Winter half-year temperature reconstruction for the middle and lower reaches of the Yellow River and Yangtze River, China, during the past 2000 years. The Holocene 13:933–940Google Scholar
- Hayashida S, Kishino I, Morita A (1998) Development of growth forecasting system on satsuma mandarin. Bull Nagasaki Fruit Tree Exp Stn 5:1–9 (in Japanese)Google Scholar
- Konno T, Sugihara S (1986) Temperature index for characterizing biological activity in soil and its application to decomposition of soil organic matter. Bull Nat Inst Agro-environ Sci 1:51–68 (in Japanese)Google Scholar
- Miura H, Ogasawara K (1988) Forecasting flowering time of several fruit trees by the mesh weather system—a model by the DTS (number of days transformed to standard temperature) method. Tohoku Agric Res 41:239–240 (in Japanese)Google Scholar
- Waple AM, Mann ME, Bradley RS (2002) Long-term patterns of solar irradiance forcing in model experiments and proxy based surface temperature reconstructions. Clim Dyn 18:563–578Google Scholar
- Watanabe E (2005) “Goryoudono” – Konoe’s Villa and noble ladies in late Middle Age. Bull Doshisha Univ Hist Museum 9:7–21 (in Japanese)Google Scholar
- Yamamoto T (1967) Outline of climate change in Japan. Meteorol Res Note 91:336–343 (in Japanese)Google Scholar