气候变化领域集成服务门户(CCPortal): Rain-on-Snow events in Japan as projected by a large ensemble of regional climate simulations

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DOI	10.1007/s00382-020-05419-8
	Rain-on-Snow events in Japan as projected by a large ensemble of regional climate simulations
	Ohba M.; Kawase H.
发表日期	2020
ISSN	0930-7575
起始页码	2785
结束页码	2800
卷号	55
英文摘要	Rain-on-Snow (ROS) events can cause severe snowmelt hazards such as river flooding, avalanches, and landslides that have significant impacts on various sectors. The influence of climate change on the frequency of ROS events in Japan was investigated using climate projections obtained from the Database for Policy Decision making for Future climate change (d4PDF). The projected future climate in the regional model simulations showed an increase in the ROS events over the mountainous areas in Hokuriku (Sea of Japan side of Central Japan) and Hokkaido (Northern Japan) regions, where a higher amount of snowfall will still occur in the future. Characteristics of ROS events such as rainfall, snowmelt, and related runoff were also enhanced in these regions. Self-organizing maps (SOMs) were applied using the surface atmospheric circulation data to determine the dominant ROS-related weather patterns (WPs) in the present and future climate. The SOMs showed that some WPs had a significant effect on the cause of the ROS events. The differences in the impacts of climate change between the WPs were evaluated to understand the future changes in runoff and snowmelt associated with ROS events. The SOM analysis suggests that the increase in the occurrence of ROS events and the resultant enhancement in their characteristics in the future-climate projection can be attributed to the changes in the dominant ROS-related WPs (from cyclonic to cold-surge type) corresponding to variations in the freezing point line. These findings can inform water hazard and water resource management plans that aim to withstand regional climate change. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
英文关键词	Ater resource; Climate change; Rain-on-Snow events; Regional climate modeling; Self-organizing map; Snowmelt flood; Weather patterns
语种	英语
scopus关键词	atmospheric circulation; climate change; climate modeling; ensemble forecasting; flooding; rainfall; regional climate; regional pattern; self organizing map; snow; Japan
来源期刊	Climate Dynamics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/145283
作者单位	Central Research Institute of Electric Power Industry (CRIEPI), 1646 Abiko, Abiko-shi, Chiba, 270-1194, Japan; Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, Japan
推荐引用方式 GB/T 7714	Ohba M.,Kawase H.. Rain-on-Snow events in Japan as projected by a large ensemble of regional climate simulations[J],2020,55.
APA	Ohba M.,&Kawase H..(2020).Rain-on-Snow events in Japan as projected by a large ensemble of regional climate simulations.Climate Dynamics,55.
MLA	Ohba M.,et al."Rain-on-Snow events in Japan as projected by a large ensemble of regional climate simulations".Climate Dynamics 55(2020).