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Influence of the Long-Term Temperature Trend on the Number of New Records for Annual Maximum Daily Precipitation in Japan

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Title: Influence of the Long-Term Temperature Trend on the Number of New Records for Annual Maximum Daily Precipitation in Japan
Authors: Yamada, Tomohito J. Browse this author →KAKEN DB
Seang, Chhay Ngorn Browse this author
Hoshino, Tsuyoshi Browse this author →KAKEN DB
Keywords: annual maximum precipitation intensity
number of new records
climate change
sampling number theory
Clausius-Clapeyron relation
Issue Date: Apr-2020
Publisher: MDPI
Journal Title: Atmosphere
Volume: 11
Issue: 4
Start Page: 371
Publisher DOI: 10.3390/atmos11040371
Abstract: Record-breaking precipitation events have been frequent in Japan in recent years. To investigate the statistical characteristics of the frequency of record-breaking events, observations can be compared with the values derived from sampling theory with a stationary state. This study counted the number of record-breaking daily and 3-day total precipitation events at 58 rain-gauge stations in Japan between 1901 and 2018. The average number of record-breaking events over the 118-year period was 5.9 for daily total precipitation, which is larger than the theoretical value of 5.4 derived using the assumption that the climate system over the same period was stationary. Sampling theory was used to incorporate the influence of the long-term temperature trend from the Clausius-Clapeyron relation associated with the saturation vapor pressure. In theory, the long-term temperature trend gives a similar number of observed record-breaking events when the long-term temperature trend is approximately 0.5 Kelvin/100 years.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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