DOI: 10.5194/hess-20-1703-2016
Scopus记录号: 2-s2.0-84969794088
论文题名: An ice core derived 1013-year catchment-scale annual rainfall reconstruction in subtropical eastern Australia
作者: Tozer C ; R ; , Vance T ; R ; , Roberts J ; L ; , Kiem A ; S ; , Curran M ; A ; J ; , Moy A ; D
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2016
卷: 20, 期: 5 起始页码: 1703
结束页码: 1717
语种: 英语
Scopus关键词: Catchments
; Drought
; Flood control
; Floods
; Rain
; Risk assessment
; Runoff
; Catchment planning
; Flood risk assessments
; Hydroclimatic variability
; Infrastructure design
; Paleoclimate proxy
; Paleoclimate research
; Rainfall variability
; Water resources management
; Water resources
; catchment
; Holocene
; hydrometeorology
; ice core
; infrastructure planning
; paleoclimate
; proxy climate record
; rainfall
; reconstruction
; resource management
; sea salt
; teleconnection
; Antarctica
; Australia
; East Antarctica
; Williams Basin
英文摘要: Paleoclimate research indicates that the Australian instrumental climate record (∼100 years) does not cover the full range of hydroclimatic variability that is possible. To better understand the implications of this on catchment-scale water resources management, a 1013-year (1000-2012 common era (CE)) annual rainfall reconstruction was produced for the Williams River catchment in coastal eastern Australia. No high-resolution paleoclimate proxies are located in the region and so a teleconnection between summer sea salt deposition recorded in ice cores from East Antarctica and rainfall variability in eastern Australia was exploited to reconstruct the catchment-scale rainfall record. The reconstruction shows that significantly longer and more frequent wet and dry periods were experienced in the preinstrumental compared to the instrumental period. This suggests that existing drought and flood risk assessments underestimate the true risks due to the reliance on data and statistics obtained from only the instrumental record. This raises questions about the robustness of existing water security and flood protection measures and has serious implications for water resources management, infrastructure design and catchment planning. The method used in this proof of concept study is transferable and enables similar insights into the true risk of flood/drought to be gained for other paleoclimate proxy poor regions for which suitable remote teleconnected proxies exist. This will lead to improved understanding and ability to deal with the impacts of multi-decadal to centennial hydroclimatic variability. © 2016 Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/78849
Appears in Collections: 气候变化事实与影响
There are no files associated with this item.
作者单位: Antarctic Climate and Ecosystems, Cooperative Research Centre, University of Tasmania, Hobart, TAS, Australia; Centre for Water, Climate and Land Use, University of Newcastle, Callaghan, NSW, Australia; Australian Antarctic Division, Kingston, TAS, Australia
Recommended Citation:
Tozer C,R,, Vance T,et al. An ice core derived 1013-year catchment-scale annual rainfall reconstruction in subtropical eastern Australia[J]. Hydrology and Earth System Sciences,2016-01-01,20(5)