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Future Changes in Monthly Extreme Precipitation in Japan Using Large-Ensemble Regional Climate Simulations

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Title: Future Changes in Monthly Extreme Precipitation in Japan Using Large-Ensemble Regional Climate Simulations
Authors: Hatsuzuka, Daisuke Browse this author
Sato, Tomonori Browse this author →KAKEN DB
Issue Date: Mar-2019
Publisher: American Meteorological Society
Journal Title: Journal of hydrometeorology
Volume: 20
Issue: 3
Start Page: 563
End Page: 574
Publisher DOI: 10.1175/JHM-D-18-0095.1
Abstract: This study investigated future changes in monthly extreme precipitation in Japan during summer (June-August). The uncertainties in estimating extreme monthly precipitation were analyzed using large-ensemble regional climate simulations for both present and 4-K warmer climates. The main diagnostics were based on the 100-yr return values of monthly total precipitation P-T100 estimated from a best-fit probability distribution. Under the warmer climate, P-T100 was projected to increase in approximately 87%, 88%, and 78% of the total number of stations for June, July, and August, respectively, suggesting that once-per-century monthly precipitation will increase as temperature increases over a wide area of Japan, although large regional variations will exist. The western part of Kyushu and the Hokkaido region showed significant and moderately robust increases in P-T100 throughout the summer months. In contrast, a considerable and robust increase was projected only in June in the Nansei Islands. The percentage change in P-T100 was small in western and eastern Japan, and thus the sign of the change was uncertain. Further analysis indicated that uncertainty in internal variability is more important than uncertainty in the SST scenario for future projections of monthly precipitation extremes.
Rights: © Copyright 2019-03-22 American Meteorological Society (AMS). Permission to use figures, tables, and brief excerpts from this work in scientific and educational works is hereby granted provided that the source is acknowledged. Any use of material in this work that is determined to be “fair use” under Section 107 of the U.S. Copyright Act or that satisfies the conditions specified in Section 108 of the U.S. Copyright Act (17 USC §108) does not require the AMS’s permission. Republication, systematic reproduction, posting in electronic form, such as on a web site or in a searchable database, or other uses of this material, except as exempted by the above statement, requires written permission or a license from the AMS. All AMS journals and monograph publications are registered with the Copyright Clearance Center (http://www.copyright.com). Questions about permission to use materials for which AMS holds the copyright can also be directed to permissions@ametsoc.org. Additional details are provided in the AMS Copyright Policy statement, available on the AMS website (http://www.ametsoc.org/CopyrightInformation).
Type: article
URI: http://hdl.handle.net/2115/75503
Appears in Collections:環境科学院・地球環境科学研究院 (Graduate School of Environmental Science / Faculty of Environmental Earth Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 初塚 大輔

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