Experiments of the efficacy of tree ring blue intensity as a climate proxy in central and western China
This paper was funded by the China Scholarship Council (grant no. 202006275018), the National Natural Science Foundation of China (NSFC, project no. 41771227), and Key Technology Projects of the Hubei Provincial Company of the China National Tobacco Corporation (grant nos. 027Y2021-020 and 027Y2022-...
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ftstandrewserep:oai:research-repository.st-andrews.ac.uk:10023/29048 2024-02-11T10:08:54+01:00 Experiments of the efficacy of tree ring blue intensity as a climate proxy in central and western China Zheng, Yonghong Shen, Huanfeng Abernethy, Rory Wilson, Rob NERC University of St Andrews. School of Earth & Environmental Sciences 2024-01-22T14:30:04Z 10 application/pdf http://hdl.handle.net/10023/29048 https://doi.org/10.5194/bg-20-3481-2023 eng eng Biogeosciences Zheng , Y , Shen , H , Abernethy , R & Wilson , R 2023 , ' Experiments of the efficacy of tree ring blue intensity as a climate proxy in central and western China ' , Biogeosciences , vol. 20 , no. 16 , pp. 3481-3490 . https://doi.org/10.5194/bg-20-3481-2023 1726-4170 PURE: 298266495 PURE UUID: 193ad71c-1c41-4473-b056-3b235c2e2226 Scopus: 85171137692 ORCID: /0000-0003-4486-8904/work/151190612 http://hdl.handle.net/10023/29048 https://doi.org/10.5194/bg-20-3481-2023 NE/W007223/1 Copyright © Author(s) 2023. Open Access. This work is distributed under the Creative Commons Attribution 4.0 License. GE Environmental Sciences Ecology Evolution Behavior and Systematics Earth-Surface Processes RR-NDAS GE Journal article 2024 ftstandrewserep https://doi.org/10.5194/bg-20-3481-2023 2024-01-25T23:29:29Z This paper was funded by the China Scholarship Council (grant no. 202006275018), the National Natural Science Foundation of China (NSFC, project no. 41771227), and Key Technology Projects of the Hubei Provincial Company of the China National Tobacco Corporation (grant nos. 027Y2021-020 and 027Y2022-006). Rob Wilson was further funded by the NSF/NERC project (grant no. NE/W007223/1 – Understanding Trans-Hemispheric Modes of Climate Variability: A Novel Tree-Ring Data Transect spanning the Himalaya to the Southern Ocean). To investigate the potential value of tree ring blue intensity as a robust climate proxy in central and western China, four species from five sites were assessed. As well as latewood inverted blue intensity, we also examined earlywood blue intensity. To explore the sensitivity of using different extraction parameter settings using the software CooRecorder, seven percentile (P) variant settings for earlywood blue intensity and latewood inverted blue intensity were used, namely P50 : 50, P60 : 40, P70 : 30, P80 : 20, P85 : 15, P90 : 10, and P95 : 5. Age-dependent spline was used for all, and the positive trends were not retained. Correlation analysis was applied between the tree ring parameter chronologies and monthly/seasonal mean temperature, precipitation, and self-calibrated Palmer drought severity index variables. Linear regression was also used to further highlight the potential of developing climate reconstructions using these species. Only subtle differences were found between the different percentile extraction variants. As has been shown for many other Northern Hemisphere studies, latewood inverted blue intensity expresses a strong positive relationship with growing-season temperatures (the two southern sites explain almost 56 % of the temperature variance when combined). However, the low latitude of these sites shows an exciting potential for regions south of 30∘ N that are traditionally not targeted for temperature reconstructions. Earlywood blue intensity also shows good potential to ... Article in Journal/Newspaper Southern Ocean University of St Andrews: Digital Research Repository Southern Ocean Biogeosciences 20 16 3481 3490 |
institution |
Open Polar |
collection |
University of St Andrews: Digital Research Repository |
op_collection_id |
ftstandrewserep |
language |
English |
topic |
GE Environmental Sciences Ecology Evolution Behavior and Systematics Earth-Surface Processes RR-NDAS GE |
spellingShingle |
GE Environmental Sciences Ecology Evolution Behavior and Systematics Earth-Surface Processes RR-NDAS GE Zheng, Yonghong Shen, Huanfeng Abernethy, Rory Wilson, Rob Experiments of the efficacy of tree ring blue intensity as a climate proxy in central and western China |
topic_facet |
GE Environmental Sciences Ecology Evolution Behavior and Systematics Earth-Surface Processes RR-NDAS GE |
description |
This paper was funded by the China Scholarship Council (grant no. 202006275018), the National Natural Science Foundation of China (NSFC, project no. 41771227), and Key Technology Projects of the Hubei Provincial Company of the China National Tobacco Corporation (grant nos. 027Y2021-020 and 027Y2022-006). Rob Wilson was further funded by the NSF/NERC project (grant no. NE/W007223/1 – Understanding Trans-Hemispheric Modes of Climate Variability: A Novel Tree-Ring Data Transect spanning the Himalaya to the Southern Ocean). To investigate the potential value of tree ring blue intensity as a robust climate proxy in central and western China, four species from five sites were assessed. As well as latewood inverted blue intensity, we also examined earlywood blue intensity. To explore the sensitivity of using different extraction parameter settings using the software CooRecorder, seven percentile (P) variant settings for earlywood blue intensity and latewood inverted blue intensity were used, namely P50 : 50, P60 : 40, P70 : 30, P80 : 20, P85 : 15, P90 : 10, and P95 : 5. Age-dependent spline was used for all, and the positive trends were not retained. Correlation analysis was applied between the tree ring parameter chronologies and monthly/seasonal mean temperature, precipitation, and self-calibrated Palmer drought severity index variables. Linear regression was also used to further highlight the potential of developing climate reconstructions using these species. Only subtle differences were found between the different percentile extraction variants. As has been shown for many other Northern Hemisphere studies, latewood inverted blue intensity expresses a strong positive relationship with growing-season temperatures (the two southern sites explain almost 56 % of the temperature variance when combined). However, the low latitude of these sites shows an exciting potential for regions south of 30∘ N that are traditionally not targeted for temperature reconstructions. Earlywood blue intensity also shows good potential to ... |
author2 |
NERC University of St Andrews. School of Earth & Environmental Sciences |
format |
Article in Journal/Newspaper |
author |
Zheng, Yonghong Shen, Huanfeng Abernethy, Rory Wilson, Rob |
author_facet |
Zheng, Yonghong Shen, Huanfeng Abernethy, Rory Wilson, Rob |
author_sort |
Zheng, Yonghong |
title |
Experiments of the efficacy of tree ring blue intensity as a climate proxy in central and western China |
title_short |
Experiments of the efficacy of tree ring blue intensity as a climate proxy in central and western China |
title_full |
Experiments of the efficacy of tree ring blue intensity as a climate proxy in central and western China |
title_fullStr |
Experiments of the efficacy of tree ring blue intensity as a climate proxy in central and western China |
title_full_unstemmed |
Experiments of the efficacy of tree ring blue intensity as a climate proxy in central and western China |
title_sort |
experiments of the efficacy of tree ring blue intensity as a climate proxy in central and western china |
publishDate |
2024 |
url |
http://hdl.handle.net/10023/29048 https://doi.org/10.5194/bg-20-3481-2023 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
Biogeosciences Zheng , Y , Shen , H , Abernethy , R & Wilson , R 2023 , ' Experiments of the efficacy of tree ring blue intensity as a climate proxy in central and western China ' , Biogeosciences , vol. 20 , no. 16 , pp. 3481-3490 . https://doi.org/10.5194/bg-20-3481-2023 1726-4170 PURE: 298266495 PURE UUID: 193ad71c-1c41-4473-b056-3b235c2e2226 Scopus: 85171137692 ORCID: /0000-0003-4486-8904/work/151190612 http://hdl.handle.net/10023/29048 https://doi.org/10.5194/bg-20-3481-2023 NE/W007223/1 |
op_rights |
Copyright © Author(s) 2023. Open Access. This work is distributed under the Creative Commons Attribution 4.0 License. |
op_doi |
https://doi.org/10.5194/bg-20-3481-2023 |
container_title |
Biogeosciences |
container_volume |
20 |
container_issue |
16 |
container_start_page |
3481 |
op_container_end_page |
3490 |
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1790608527841034240 |