2024-03-28T11:14:01Zhttps://eprints.lib.hokudai.ac.jp/dspace-oai/requestoai:eprints.lib.hokudai.ac.jp:2115/789912022-11-17T02:08:08Zhdl_2115_20045hdl_2115_139Influence of the Long-Term Temperature Trend on the Number of New Records for Annual Maximum Daily Precipitation in Japan1000010554959Yamada, Tomohito J.Seang, Chhay Ngorn1000040750625Hoshino, Tsuyoshimetadata only accessCreative Commons Attribution 4.0 Internationalannual maximum precipitation intensitynumber of new recordsclimate changesampling number theoryClausius-Clapeyron relationJapan517Record-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.MDPI2020-04engjournal articleNAhttp://hdl.handle.net/2115/78991https://doi.org/10.3390/atmos11040371Atmosphere114371