Japan Geoscience Union Meeting 2016

Presentation information


Symbol O (Public) » Public

[O-02] Poster presentations by senior high school students

Sun. May 22, 2016 1:45 PM - 3:15 PM Poster Hall (International Exhibition Hall HALL6)

Convener:*Tatsuhiko Hara(International Institute of Seismology and Earthquake Engineering, Building Research Institute), Miwa Kuri(International Research Institute of Disaster Science, Tohoku University), Keiko Konya(Research Institute for Global Change, Japan Agency for Marine-Earth Science and Technology), Hajime Naruse(Department of Geology and Mineralogy, Graduate School of Science, Kyoto University), Kou Yamada(Waseda University)

1:45 PM - 3:15 PM

[O02-P24] Little ice age during the Edo era in the WAKASA area
~Climate reconstruction using Modern analogues technique~

*Chiharu Kuroda1, *Wakana Shimazu1, *Yuko Shimizu1, *Sakura Hattori1, *Yuka Ymada1, *Ami Yamamoto1, *Hirono Yoshioka1 (1.Fukui prefectural Wakasa Senior High School)

Keywords:pollen analysis , three major cold famine periods, climate reconstruction, modern analogues technique

It is known that past climates can be reconstructed quantitatively through pollen analysis of sediments. In Wakasa, Fukui, it is recorded that there were three major cold famine periods during the Edo era, but it's not known what the temperatures were like at that time. We tried pollen analysis in order to verify the past climates quantitatively. Based on the results of Carbon-14 dating, we collected 16 sample sediment layers from the first years of the major famines during the Edo era. After pollen extraction, we counted the pollen of the trees, 200 in total per 1 sample and calculated the rate of genus and species included in each sample. Based on the pollen data, we reconstructed the climate of 300 years ago by using the reconstruction software, Polygon. As a result, we could find two low temperature periods.