气候变化领域集成服务门户(CCPortal): Hydrological complexity and climate implications in Australia's arid zone: A decade of high-resolution rainfall observations

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DOI	10.1016/j.ejrh.2023.101643
	Hydrological complexity and climate implications in Australia's arid zone: A decade of high-resolution rainfall observations
	Acworth, Ian; Bernardi, Tony; Andersen, Martin S.; Rau, Gabriel C.
发表日期	2024
EISSN	2214-5818
起始页码	51
卷号	51
英文摘要	Study region: The study was carried out in Fowlers Gap (New South Wales, Australia) within a 400 km2 arid zone catchment approx. 110 km north of Broken Hill. Study focus: A comprehensive dataset of 10 s rainfall encompassing 17 rain gauges spanning over a decade (from 2013 to 2023) was meticulously analysed in combination with climate and stream levels and supplemented by daily camera images of the creek. New hydrological insights for the region: 64.6% of the rainfall flows to the creek, with the remainder lost before reaching the creek. Within this 64.6%, there were 67 individual flow events, comprising 47.7% of rainfall (35 events) associated with fronts and 16.9% (32 events) linked to local cumulonimbus storm cells. A fundamental characteristic of these flow events is their very rapid response, which appears to be independent of antecedent moisture content. The spatially averaged intensity of rainfall events experienced an approximate 200% increase, rising from 1.6 mm/h in mid-2013 to 4.8 mm/h by mid-2023. This noteworthy change is attributed to climate change. Despite the projected decrease in overall precipitation for the region, this observed rise in intensity aligns with the broader trend of global warming accelerating the water cycle.
英文关键词	Arid-arid zone hydrology; Rainfall; Ephemeral runoff; Australia
语种	英语
WOS研究方向	Water Resources
WOS类目	Water Resources
WOS记录号	WOS:001153524000001
来源期刊	JOURNAL OF HYDROLOGY-REGIONAL STUDIES
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/295089
作者单位	University of New South Wales Sydney; University of Canberra; University of Newcastle
推荐引用方式 GB/T 7714	Acworth, Ian,Bernardi, Tony,Andersen, Martin S.,et al. Hydrological complexity and climate implications in Australia's arid zone: A decade of high-resolution rainfall observations[J],2024,51.
APA	Acworth, Ian,Bernardi, Tony,Andersen, Martin S.,&Rau, Gabriel C..(2024).Hydrological complexity and climate implications in Australia's arid zone: A decade of high-resolution rainfall observations.JOURNAL OF HYDROLOGY-REGIONAL STUDIES,51.
MLA	Acworth, Ian,et al."Hydrological complexity and climate implications in Australia's arid zone: A decade of high-resolution rainfall observations".JOURNAL OF HYDROLOGY-REGIONAL STUDIES 51(2024).