globalchange  > 气候变化事实与影响
DOI: 10.5194/hess-21-963-2017
Scopus记录号: 2-s2.0-85013013345
论文题名:
Characteristics of rainfall events in regional climate model simulations for the Czech Republic
作者: Svoboda V; , Hanel M; , MácA P; , Kyselý J
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2017
卷: 21, 期:2
起始页码: 963
结束页码: 980
语种: 英语
Scopus关键词: Rain ; Averaging effect ; Rainfall intensity ; Regional climate model simulation ; Regional climate modeling (RCM) ; Simulated events ; Spatial resolution ; Spatial variations ; Total precipitation ; Climate models ; climate modeling ; extreme event ; precipitation assessment ; rainfall ; regional climate ; spatial variation ; Czech Republic
英文摘要: Characteristics of rainfall events in an ensemble of 23 regional climate model (RCM) simulations are evaluated against observed data in the Czech Republic for the period 1981-2000. Individual rainfall events are identified using the concept of minimum inter-event time (MIT) and only heavy events (15% of events with the largest event depths) during the warm season (May-September) are considered. Inasmuch as an RCM grid box represents a spatial average, the effects of areal averaging of rainfall data on characteristics of events are investigated using the observed data. Rainfall events from the RCM simulations are then compared to those from the at-site and area-average observations. Simulated number of heavy events and seasonal total precipitation due to heavy events are on average represented relatively well despite the higher spatial variation compared to observations. RCM-simulated event depths are comparable to the area-average observations, while event durations are overestimated and other characteristics related to rainfall intensity are significantly underestimated. The differences between RCM-simulated and at-site observed rainfall event characteristics are in general dominated by the biases of the climate models rather than the areal-averaging effect. Most of the rainfall event characteristics in the majority of the RCM simulations show a similar altitude-dependence pattern as in the observed data. The number of heavy events and seasonal total precipitation due to heavy events increase with altitude, and this dependence is captured better by the RCM simulations with higher spatial resolution. © 2017 The Author(s).
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79258
Appears in Collections:气候变化事实与影响

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作者单位: Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, Praha 6, Suchdol, Czech Republic; Institute of Atmospheric Physics, Czech Academy of Sciences, Boní II 1401, Praha 4, SpoÅ™ilov, Czech Republic; T. G. Masaryk Water Research Institute, Podbabská 2582/30, Praha 6, Dejvice, Czech Republic

Recommended Citation:
Svoboda V,, Hanel M,, MácA P,et al. Characteristics of rainfall events in regional climate model simulations for the Czech Republic[J]. Hydrology and Earth System Sciences,2017-01-01,21(2)
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