Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1007/s00382-019-04731-2 |
Tree-ring stable isotopes for regional discharge reconstruction in eastern Labrador and teleconnection with the Arctic Oscillation | |
Dinis, Lauriane1; Begin, Christian1; Savard, Martine M.1; Marion, Joelle1; Brigode, Pierre2; Alvarez, Cristian3 | |
2019-09-01 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 53页码:3625-3640 |
文章类型 | Article |
语种 | 英语 |
国家 | Canada; France |
英文摘要 | In northeastern Canada (Labrador), instrumental climatic data cover less than 70 years and long reconstructions from natural archives are non-existent. This study specifically aims at helping filling this gap of knowledge by testing the possibility of reconstructing the regional 1800-2009 discharge of the lower Churchill River from black spruce tree-ring delta C-13 and delta O-18 series. The results illustrate direct relationships of summer climatic variables/derived parameter (maximum temperature, total precipitation and vapor pressure deficit) with tree-ring isotope values. Importantly, they show an inverse correlation between combined tree-ring isotope series and regional river discharge due to common climate forcing. To a lesser extent, transpiration also affects the river discharge and tree-ring isotopic compositions. The reconstructed river discharge series agrees with an independent reconstruction based on the ANATEM method (1880-2009 period). The agreement between the two reconstructions validates the two approaches for reconstructing regional hydroclimatic conditions at high latitudes. Moreover, the reconstructions suggest that summer discharge has decreased over the past 200 years in eastern Labrador and more broadly at the Quebec-Labrador peninsula scale. This trend correlates with the long-term summer Arctic Oscillation (AO) that influences summer regional climatic conditions. This research contributes with other studies to build up observations linking summer AO and eastern Canada climatic conditions, and calls for research on mechanisms explaining these relationships during summer. |
英文关键词 | Past discharge reconstruction Carbon isotopes Oxygen isotopes Tree rings Arctic Oscillation Labrador |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000483626900066 |
WOS关键词 | SPRUCE BUDWORM OUTBREAKS ; WATER-USE EFFICIENCY ; CARBON ISOTOPES ; NORTHERN QUEBEC ; NORTHEASTERN CANADA ; GEOPOTENTIAL HEIGHT ; BRITISH-COLUMBIA ; DROUGHT PATTERNS ; OXYGEN ISOTOPES ; TIME-SERIES |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/186394 |
专题 | 气候变化 |
作者单位 | 1.Nat Resources Canada, Geol Survey Canada, 490 Rue Couronne, Quebec City, PQ G1K 9A9, Canada; 2.Univ Cote dAzur, CNRS, OCA, IRD, Nice, France; 3.Inst Natl Rech Sci, Ctr Eau Terre Environm, 490 Rue Couronne, Quebec City, PQ G1K 9A9, Canada |
推荐引用方式 GB/T 7714 | Dinis, Lauriane,Begin, Christian,Savard, Martine M.,et al. Tree-ring stable isotopes for regional discharge reconstruction in eastern Labrador and teleconnection with the Arctic Oscillation[J]. CLIMATE DYNAMICS,2019,53:3625-3640. |
APA | Dinis, Lauriane,Begin, Christian,Savard, Martine M.,Marion, Joelle,Brigode, Pierre,&Alvarez, Cristian.(2019).Tree-ring stable isotopes for regional discharge reconstruction in eastern Labrador and teleconnection with the Arctic Oscillation.CLIMATE DYNAMICS,53,3625-3640. |
MLA | Dinis, Lauriane,et al."Tree-ring stable isotopes for regional discharge reconstruction in eastern Labrador and teleconnection with the Arctic Oscillation".CLIMATE DYNAMICS 53(2019):3625-3640. |
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