A Picea crassifolia Tree-Ring Width-BasedTemperature Reconstruction for the Mt.Dongda Region, Northwest China, and ItsRelationship to Large-Scale Climate Forcing
The historical May-October mean temperature since 1831 was reconstructed based on tree-ring width of Qinghai spruce (Picea crassifolia Kom.) collected on Mt. Dongda, North of the Hexi Corridor in Northwest China. The regression model explained 46.6% of the variance of the instrumentally observed tem...
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ftchinacascieeca:oai:ir.ieecas.cn:361006/5872 2023-06-11T04:14:55+02:00 A Picea crassifolia Tree-Ring Width-BasedTemperature Reconstruction for the Mt.Dongda Region, Northwest China, and ItsRelationship to Large-Scale Climate Forcing Liu,Y(Liu,Yu) Sun,CF(Sun,Changfeng) Li,Q(Li,Qiang) Cai,QF(Cai.Qiufang) Liu,Yu 2016-08-10 http://ir.ieecas.cn/handle/361006/5872 https://doi.org/10.1371/journal.pone.0160963 英语 eng PLoS One http://ir.ieecas.cn/handle/361006/5872 doi:10.1371/journal.pone.0160963 null 期刊论文 2016 ftchinacascieeca https://doi.org/10.1371/journal.pone.0160963 2023-05-08T13:23:03Z The historical May-October mean temperature since 1831 was reconstructed based on tree-ring width of Qinghai spruce (Picea crassifolia Kom.) collected on Mt. Dongda, North of the Hexi Corridor in Northwest China. The regression model explained 46.6% of the variance of the instrumentally observed temperature. The cold periods in the reconstruction were 1831-1889, 1894-1901, 1908-1934 and 1950-1952, and the warm periods were 1890-1893, 1902-1907, 1935-1949 and 1953-2011. During the instrumental period (1951-2011), an obvious warming trend appeared in the last twenty years. The reconstruction displayed similar patterns to a temperature reconstruction from the east-central Tibetan Plateau at the inter-decadal timescale, indicating that the temperature reconstruction in this study was a reliable proxy for Northwest China. It was also found that the reconstruction series had good consistency with the Northern Hemisphere temperature at a decadal timescale. Multi-taper method spectral analysis detected some low- and high-frequency cycles (2.3-2.4-year, 2.8-year, 3.4-3.6-year, 5.0-year, 9.9-year and 27.0-year). Combining these cycles, the relationship of the low-frequency change with the Pacific Decadal Oscillation (PDO), North Atlantic Oscillation (NAO) and Southern Oscillation (SO) suggested that the reconstructed temperature variations may be related to large-scale atmospheric-oceanic variations. Major volcanic eruptions were partly reflected in the reconstructed temperatures after high-pass filtering; these events promoted anomalous cooling in this region. The results of this study not only provide new information for assessing the long-term temperature changes in the Hexi Corridor of Northwest China, but also further demonstrate the effects of large-scale atmospheric-oceanic circulation on climate change in Northwest China. Report North Atlantic North Atlantic oscillation Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences) Pacific PLOS ONE 11 8 e0160963 |
institution |
Open Polar |
collection |
Institute of Earth Environment: IEECAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacascieeca |
language |
English |
description |
The historical May-October mean temperature since 1831 was reconstructed based on tree-ring width of Qinghai spruce (Picea crassifolia Kom.) collected on Mt. Dongda, North of the Hexi Corridor in Northwest China. The regression model explained 46.6% of the variance of the instrumentally observed temperature. The cold periods in the reconstruction were 1831-1889, 1894-1901, 1908-1934 and 1950-1952, and the warm periods were 1890-1893, 1902-1907, 1935-1949 and 1953-2011. During the instrumental period (1951-2011), an obvious warming trend appeared in the last twenty years. The reconstruction displayed similar patterns to a temperature reconstruction from the east-central Tibetan Plateau at the inter-decadal timescale, indicating that the temperature reconstruction in this study was a reliable proxy for Northwest China. It was also found that the reconstruction series had good consistency with the Northern Hemisphere temperature at a decadal timescale. Multi-taper method spectral analysis detected some low- and high-frequency cycles (2.3-2.4-year, 2.8-year, 3.4-3.6-year, 5.0-year, 9.9-year and 27.0-year). Combining these cycles, the relationship of the low-frequency change with the Pacific Decadal Oscillation (PDO), North Atlantic Oscillation (NAO) and Southern Oscillation (SO) suggested that the reconstructed temperature variations may be related to large-scale atmospheric-oceanic variations. Major volcanic eruptions were partly reflected in the reconstructed temperatures after high-pass filtering; these events promoted anomalous cooling in this region. The results of this study not only provide new information for assessing the long-term temperature changes in the Hexi Corridor of Northwest China, but also further demonstrate the effects of large-scale atmospheric-oceanic circulation on climate change in Northwest China. |
format |
Report |
author |
Liu,Y(Liu,Yu) Sun,CF(Sun,Changfeng) Li,Q(Li,Qiang) Cai,QF(Cai.Qiufang) Liu,Yu |
spellingShingle |
Liu,Y(Liu,Yu) Sun,CF(Sun,Changfeng) Li,Q(Li,Qiang) Cai,QF(Cai.Qiufang) Liu,Yu A Picea crassifolia Tree-Ring Width-BasedTemperature Reconstruction for the Mt.Dongda Region, Northwest China, and ItsRelationship to Large-Scale Climate Forcing |
author_facet |
Liu,Y(Liu,Yu) Sun,CF(Sun,Changfeng) Li,Q(Li,Qiang) Cai,QF(Cai.Qiufang) Liu,Yu |
author_sort |
Liu,Y(Liu,Yu) |
title |
A Picea crassifolia Tree-Ring Width-BasedTemperature Reconstruction for the Mt.Dongda Region, Northwest China, and ItsRelationship to Large-Scale Climate Forcing |
title_short |
A Picea crassifolia Tree-Ring Width-BasedTemperature Reconstruction for the Mt.Dongda Region, Northwest China, and ItsRelationship to Large-Scale Climate Forcing |
title_full |
A Picea crassifolia Tree-Ring Width-BasedTemperature Reconstruction for the Mt.Dongda Region, Northwest China, and ItsRelationship to Large-Scale Climate Forcing |
title_fullStr |
A Picea crassifolia Tree-Ring Width-BasedTemperature Reconstruction for the Mt.Dongda Region, Northwest China, and ItsRelationship to Large-Scale Climate Forcing |
title_full_unstemmed |
A Picea crassifolia Tree-Ring Width-BasedTemperature Reconstruction for the Mt.Dongda Region, Northwest China, and ItsRelationship to Large-Scale Climate Forcing |
title_sort |
picea crassifolia tree-ring width-basedtemperature reconstruction for the mt.dongda region, northwest china, and itsrelationship to large-scale climate forcing |
publishDate |
2016 |
url |
http://ir.ieecas.cn/handle/361006/5872 https://doi.org/10.1371/journal.pone.0160963 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
PLoS One http://ir.ieecas.cn/handle/361006/5872 doi:10.1371/journal.pone.0160963 |
op_rights |
null |
op_doi |
https://doi.org/10.1371/journal.pone.0160963 |
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PLOS ONE |
container_volume |
11 |
container_issue |
8 |
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e0160963 |
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