DOI: 10.1002/grl.50467
论文题名: Reducing uncertainty in the climatic interpretations of speleothem δ18O
作者: Jex C.N. ; Phipps S.J. ; Baker A. ; Bradley C.
刊名: Geophysical Research Letters
ISSN: 0094-8991
EISSN: 1944-8722
出版年: 2013
卷: 40, 期: 10 起始页码: 2259
结束页码: 2264
语种: 英语
英文关键词: atmospheric circulation
; karst hydrology
; modeling
; oxygen isotope
; speleothem
; uncertainty
Scopus关键词: Atmospheric circulation
; Karst hydrology
; Oxygen isotopes
; speleothem
; uncertainty
; Aquifers
; Climate change
; Hydrogeology
; Isotopes
; Meteorology
; Models
; Uncertainty analysis
; Climate models
; air-sea interaction
; annual variation
; atmospheric circulation
; atmospheric modeling
; cool water
; karst
; numerical model
; oxygen isotope
; paleoclimate
; precipitation (climatology)
; speleothem
; uncertainty analysis
; Atlantic Ocean
; Caspian Sea
; North Sea
英文摘要: We explore two principal areas of uncertainty associated with paleoclimate reconstructions from speleothem δ18O (δ 18Ospel): potential non-stationarity in relationships between local climate and larger-scale atmospheric circulation, and routing of water through the karst aquifer. Using a δ18Ospel record from Turkey, the CSIRO Mk3L climate system model and the KarstFOR karst hydrology model, we confirm the stationarity of relationships between cool season precipitation and regional circulation dynamics associated with the North Sea-Caspian pattern since 1 ka. Stalagmite δ18O is predicted for the last 500 years, using precipitation and temperature output from the CSIRO Mk3L model and synthetic δ18O of precipitation as inputs for the KarstFOR model. Interannual variability in the δ 18Ospel record is captured by KarstFOR, but we cannot reproduce the isotopically lighter conditions of the sixteenth to seventeenth centuries. We argue that forward models of paleoclimate proxies (such as KarstFOR) embedded within isotope-enabled general circulation models are now required. © 2013 American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84879950758&doi=10.1002%2fgrl.50467&partnerID=40&md5=1cc0a773c4d20131a506180990443f81
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6255
Appears in Collections: 气候减缓与适应
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作者单位: Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, NSW 2052, Australia
Recommended Citation:
Jex C.N.,Phipps S.J.,Baker A.,et al. Reducing uncertainty in the climatic interpretations of speleothem δ18O[J]. Geophysical Research Letters,2013-01-01,40(10).