气候变化领域集成服务门户(CCPortal): Extreme weather events and transmission losses in arid streams

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DOI	10.1088/1748-9326/ab2949
	Extreme weather events and transmission losses in arid streams
	Schreiner-Mcgraw A.P.; Ajami H.; Vivoni E.R.
发表日期	2019
ISSN	17489318
卷号	14 期号:8
英文摘要	A limited understanding of how extreme weather events affect groundwater hinders our ability to predict climate change impacts in drylands, where channel transmission losses are often the primary recharge mechanism. In this study, we investigate how potential changes to precipitation intensity and temperature will affect the water balance of a typical first-order, arid watershed located in the Chihuahuan Desert. We utilize a process-based hydrologic model driven by stochastically-downscaled simulations from a set of climate models, emissions scenarios, and future periods. Across many simulations, the average daily storm size is the primary factor that controls transmission losses with larger precipitation amounts increasing channel infiltration while simultaneously decreasing land surface evapotranspiration. Extreme events (>25 mm d-1) that account for less than 30% of the annual precipitation, contribute almost 50% of the focused recharge. As a result, climatic changes leading to larger, less frequent storms will result in higher channel transmission losses in arid regions. © 2019 The Author(s). Published by IOP Publishing Ltd.
英文关键词	climate change; distributed hydrologic modeling; dryland ecohydrology; groundwater recharge; water balance
语种	英语
scopus关键词	Climate models; Recharging (underground waters); Storms; Systems analysis; Wave transmission; Weather information services; Annual precipitation; Climate change impact; Distributed hydrologic model; Eco-hydrology; Extreme weather events; Ground water recharge; Precipitation intensity; Water balance; Climate change; climate change; dryland farming; ecohydrology; evapotranspiration; groundwater flow; hydrological modeling; land surface; precipitation intensity; recharge; storm; streamflow; water budget
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154481
作者单位	Department of Environmental Sciences, University of California, Riverside, CA 92507, United States; School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, United States; School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ 85287, United States
推荐引用方式 GB/T 7714	Schreiner-Mcgraw A.P.,Ajami H.,Vivoni E.R.. Extreme weather events and transmission losses in arid streams[J],2019,14(8).
APA	Schreiner-Mcgraw A.P.,Ajami H.,&Vivoni E.R..(2019).Extreme weather events and transmission losses in arid streams.Environmental Research Letters,14(8).
MLA	Schreiner-Mcgraw A.P.,et al."Extreme weather events and transmission losses in arid streams".Environmental Research Letters 14.8(2019).