Spatial patterns of Holocene temperature changes over mid-latitude Eurasia

Abstract The Holocene temperature conundrum, the discrepancy between proxy-based Holocene global cooling and simulated global annual warming trends, remains controversial. Meanwhile, reconstructions and simulations show inconsistent spatial patterns of terrestrial temperature changes. Here we report...

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Main Authors: Jiawei Jiang, Bowen Meng, Huanye Wang, Hu Liu, Mu Song, Yuxin He, Cheng Zhao, Jun Cheng, Guoqiang Chu, Sergey Krivonogov, Weiguo Liu, Zhonghui Liu
Format: Article
Language:English
Published: Nature Portfolio 2024-02-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-024-45883-y
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author Jiawei Jiang
Bowen Meng
Huanye Wang
Hu Liu
Mu Song
Yuxin He
Cheng Zhao
Jun Cheng
Guoqiang Chu
Sergey Krivonogov
Weiguo Liu
Zhonghui Liu
author_facet Jiawei Jiang
Bowen Meng
Huanye Wang
Hu Liu
Mu Song
Yuxin He
Cheng Zhao
Jun Cheng
Guoqiang Chu
Sergey Krivonogov
Weiguo Liu
Zhonghui Liu
author_sort Jiawei Jiang
collection DOAJ
description Abstract The Holocene temperature conundrum, the discrepancy between proxy-based Holocene global cooling and simulated global annual warming trends, remains controversial. Meanwhile, reconstructions and simulations show inconsistent spatial patterns of terrestrial temperature changes. Here we report Holocene alkenone records to address spatial patterns over mid-latitude Eurasia. In contrast with long-term cooling trends in warm season temperatures in northeastern China, records from southwestern Siberia are characterized by colder conditions before ~6,000 years ago, thus long-term warming trends. Together with existing records from surrounding regions, we infer that colder airmass might have prevailed in the interior of mid-latitude Eurasian continent during the early to mid-Holocene, perhaps associated with atmospheric response to remnant ice sheets. Our results challenge the proposed seasonality bias in proxies and modeled spatial patterns in study region, highlighting that spatial patterns of Holocene temperature changes should be re-considered in record integrations and model simulations, with important implications for terrestrial hydroclimate changes.
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spelling doaj.art-e2e39598c4f3497f90a444eefb7aa6ef2024-03-05T19:32:03ZengNature PortfolioNature Communications2041-17232024-02-0115111010.1038/s41467-024-45883-ySpatial patterns of Holocene temperature changes over mid-latitude EurasiaJiawei Jiang0Bowen Meng1Huanye Wang2Hu Liu3Mu Song4Yuxin He5Cheng Zhao6Jun Cheng7Guoqiang Chu8Sergey Krivonogov9Weiguo Liu10Zhonghui Liu11Department of Earth Sciences, The University of Hong KongDepartment of Earth Sciences, The University of Hong KongState Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Center for Excellence in Quaternary Science and Global Change, Chinese Academy of SciencesState Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Center for Excellence in Quaternary Science and Global Change, Chinese Academy of SciencesDepartment of Earth Sciences, The University of Hong KongKey Laboratory of Geoscience Big Data and Deep Resource of Zhejiang Province, School of Earth Sciences, Zhejiang UniversitySchool of Geography and Ocean Science, Nanjing UniversityKey Laboratory of Meteorological Disaster, Nanjing University of Information Science and TechnologyInstitute of Geology and Geophysics, Chinese Academy of SciencesFaculty of Geosciences and Environmental Engineering, Southwest Jiaotong UniversityState Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Center for Excellence in Quaternary Science and Global Change, Chinese Academy of SciencesDepartment of Earth Sciences, The University of Hong KongAbstract The Holocene temperature conundrum, the discrepancy between proxy-based Holocene global cooling and simulated global annual warming trends, remains controversial. Meanwhile, reconstructions and simulations show inconsistent spatial patterns of terrestrial temperature changes. Here we report Holocene alkenone records to address spatial patterns over mid-latitude Eurasia. In contrast with long-term cooling trends in warm season temperatures in northeastern China, records from southwestern Siberia are characterized by colder conditions before ~6,000 years ago, thus long-term warming trends. Together with existing records from surrounding regions, we infer that colder airmass might have prevailed in the interior of mid-latitude Eurasian continent during the early to mid-Holocene, perhaps associated with atmospheric response to remnant ice sheets. Our results challenge the proposed seasonality bias in proxies and modeled spatial patterns in study region, highlighting that spatial patterns of Holocene temperature changes should be re-considered in record integrations and model simulations, with important implications for terrestrial hydroclimate changes.https://doi.org/10.1038/s41467-024-45883-y
spellingShingle Jiawei Jiang
Bowen Meng
Huanye Wang
Hu Liu
Mu Song
Yuxin He
Cheng Zhao
Jun Cheng
Guoqiang Chu
Sergey Krivonogov
Weiguo Liu
Zhonghui Liu
Spatial patterns of Holocene temperature changes over mid-latitude Eurasia
Nature Communications
title Spatial patterns of Holocene temperature changes over mid-latitude Eurasia
title_full Spatial patterns of Holocene temperature changes over mid-latitude Eurasia
title_fullStr Spatial patterns of Holocene temperature changes over mid-latitude Eurasia
title_full_unstemmed Spatial patterns of Holocene temperature changes over mid-latitude Eurasia
title_short Spatial patterns of Holocene temperature changes over mid-latitude Eurasia
title_sort spatial patterns of holocene temperature changes over mid latitude eurasia
url https://doi.org/10.1038/s41467-024-45883-y
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