Study on long-term variation of the Baiu season using weather record of old diaries

2016 Fiscal Year Final Research Report

• Project/Area Number: 26630224
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Hydraulic engineering
• Research Institution: Nagoya Institute of Technology
• Principal Investigator: Sho Kenjiro 名古屋工業大学, 工学(系)研究科(研究院), 助教 (40283478)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 古日記 / 天気記録 / 梅雨期

Outline of Final Research Achievements

Weather records were collected and compiled from diaries written in the late 19th to early 20th centuries in the Kyoto area, and their relationships with the meteorological observed data were analyzed. Based on the result of this analysis, a temporally consistent time series of the duration of the Baiu rainy season for about 240 years was reconstructed and the positive trend of the length of the Baiu season during the 20th century was found unprecedentedly significant.

Free Research Field

水文学、古気候学