Quaternary Science Reviews最新文献

{"title":"Peak glacial-to-Heinrich-1 changes in Denmark Strait Overflow and seawater stratification in the Nordic Seas, a switchboard of changes in Atlantic Meridional Overturning Circulation and the 'Nordic Heat Pump'","authors":"Michael Sarnthein ,&nbsp;Patrick Blaser","doi":"10.1016/j.quascirev.2025.109181","DOIUrl":"10.1016/j.quascirev.2025.109181","url":null,"abstract":"<div><div>Today, the sub-surface Denmark Strait Overflow (DSO) and the Iceland-Scotland Overflow form the starting points of the Atlantic Meridional Overturning Circulation and compensate for the poleward flowing Norwegian and Irminger branches of the North Atlantic surface current that drive the 'Nordic Heat Pump'. During peak glacial and early deglacial times, ice sheets on Iceland and Greenland, and ice-induced isostatic and eustatic sea-level changes reduced the Denmark Strait aperture and DSO. Yet, extremely high benthic stable carbon and oxygen isotope values together with very high ventilation ages of bottom waters suggest a north-south density gradient of intermediate-waters and persistent flow of partially Arctic-sourced waters through both Denmark Strait and Faeroe Channel, analogous to today. The arrival of deglacial meltwaters off northern Iceland induced the onset of Heinrich-Stadial 1 near 18.400 yr BP, as derived from ¹⁴C-plateau tuning. They caused a tipping point in DSO circulation shown by 3 °C warming, reduced ventilation and ventilation ages of bottom water, moreover, by increased radiogenic Nd isotope signatures at luff-side Site PS2644. These records suggest a sudden subsurface incursion of Atlantic intermediate waters across basaltic sediments from S.E. of Iceland. Deep-water convection off Norway then was replaced by weak brine water formation, coeval with a breakdown of the 'Nordic Heat Pump' evidenced by a temperature drop on Greenland. After 16.2 cal ka, a major meltwater outbreak from the Barents ice shelf led to modified Heinrich-1-style circulation until ∼15.1 cal. ka. Conversely, the DSO intensified during interstadial and Holocene times, causing sediment hiatuses at Site PS2644.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"355 ","pages":"Article 109181"},"PeriodicalIF":3.2,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143534363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"","authors":"Moh Waldi Pratama ,&nbsp;Muchamad Hartanto ,&nbsp;Okto Ijen Aritonang ,&nbsp;Wiwik Ariska","doi":"10.1016/j.quascirev.2025.109247","DOIUrl":"10.1016/j.quascirev.2025.109247","url":null,"abstract":"","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"355 ","pages":"Article 109247"},"PeriodicalIF":3.2,"publicationDate":"2025-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143519441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Environmental setting of the Neolithic Agricultural Revolution across the Fertile Crescent","authors":"Mordechai Stein ,&nbsp;Nigel Goring-Morris ,&nbsp;Yoav Ben Dor ,&nbsp;Yigal Erel","doi":"10.1016/j.quascirev.2025.109265","DOIUrl":"10.1016/j.quascirev.2025.109265","url":null,"abstract":"<div><div>The transformation of human culture from hunter-gatherer societies to sedentary farming communities represents the most prominent revolution in human history, termed the Neolithic Agricultural Revolution (NAR). The NAR was manifested in the cultivation and domestication of wild plants across the ‘Fertile Crescent’ from around the 11th millennium BP. Here, we investigate the environmental conditions that enabled the establishment of the first agricultural settlements in the southern Jordan Valley and compare these settings to the northern segments of the ‘Fertile Crescent’ (northern Mesopotamia). In particular we investigated the mineralogical composition of surface cover soils and the hydrological conditions in the Gilgal Basin where a few of the early agriculture settlements of the late Natufian-PPNA cultures were established. We focused our study on the Salibiya sedimentary section (and archeological sites) in the Gilgal Basin, where a sequence of fine detritus sediments accumulated during the post glacial to the early Holocene period. OSL ages from the Salibiya sedimentary section lie between ∼24 and 11 ka BP, spanning the time of Lake Lisan retreat from its highest stands of ∼180 ± 10 m below mean sea level (= m bmsl) to below 320 m bmsl. The Salibiya sedimentary section consists of silty detritus sediments that comprise recycled mountain soils washed from the adjacent Samarian Mountains to the Gilgal Basin. The ‘mountain soils’ in their turn consist of desert dust grains (e.g., quartz, calcite, clays) that were blown to the Levant region from the north Sahara deserts, mostly during arid periods. Enhanced amounts of desert dusts were blown to the region during hyperarid periods that coincided with the Heinrich Stadials (HS) in the northern latitudes, e.g., at ∼24 ka, ∼16ka and ∼13ka. The hyperarid and dusty periods (which were harsh for the early-Natufian hunter-gatherers) were followed by wetter intervals when fresh groundwater activity resumed in the Judean and Samarian Mountains, e.g., at ∼16-15 and ∼12-11 ka. The availability of fertile ‘mountain soils’ and water during and after the Younger Dryas provided a favorable environmental setting that supported the establishment of early agriculture settlements in the Gilgal Basin (and others) in the Jordan Valley and impacted the transformation from the Epipalaeolithic Early Natufian hunter-gatherers to the Late Natufian and Pre-Pottery Neolithic A and B (PPNA, B) cultures.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"355 ","pages":"Article 109265"},"PeriodicalIF":3.2,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143510979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neolithic human adaptations to the environmental changes in the Jianghan Plain, middle Yangtze Valley","authors":"Yuenan Li ,&nbsp;Yansheng Gu ,&nbsp;Mingjuan Jiang ,&nbsp;Shaofan Fang ,&nbsp;Zhongbiao Fu ,&nbsp;Shuo Guan ,&nbsp;Ruonan Liu ,&nbsp;Zongmin Zhu ,&nbsp;Hongye Liu","doi":"10.1016/j.quascirev.2025.109271","DOIUrl":"10.1016/j.quascirev.2025.109271","url":null,"abstract":"<div><div>In order to explore the interactions among human activities, hydroclimate, and sea-river-lake level fluctuations in the mid-lower Yangtze Valley since the Neolithic, this study, based on AMS ¹⁴C and OSL dating of the Core JH002 along with geophysics, geochemistry, and microfossils, reconstructs the hydroclimate changes, sedimentary evolution, and human adaptations in the Jianghan Plain since 13,000 cal a BP. The results show that solar radiation controlled the intensity of the East Asian monsoon. Meanwhile, 5 wet-dry climate alternation phases and 30 flood-prone periods were identified. Hydroclimates and sea level changes affected the regional environment evolution and human activities. During 13,000–11,700 cal a BP (transition of Paleolithic and Neolithic), high-energy riverbed environments and extreme floods constrained human activities, with the riverbed linked to the deeply incised valleys from the Last Glacial Maximum and low sea levels during the Younger Dryas period. During 11,700–7800 cal a BP (early Neolithic), the elevated river and lake water levels caused by warm-wet conditions and rising sea levels created wetlands, facilitating human activities. The earliest evidence of human activities in the interior of Jianghan Plain dates back to about 11,300 cal a BP. From 7800 to 4000 cal a BP (mid-late Neolithic), frequent typical floods and a turbulent delta environment collectively hindered human activities. During 4000–3000 cal a BP (Xia-Shang Dynasties), high water level and expansion of Paleo-Yunmeng Lake Group limited human activities such as rice cultivation. Since 3000 cal a BP, improved water management allowed Chu people to coexist with floods, leading to the prosperity of Chu Culture. This study offers critical insights into the interactions between regional environment changes, ancient culture evolution, and human adaptations in the Yangtze region.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"355 ","pages":"Article 109271"},"PeriodicalIF":3.2,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143509527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Covariance and climate signals among state-of-the-art tree-ring proxies","authors":"Philipp Römer ,&nbsp;Anna Wieland ,&nbsp;Max C.A. Torbenson ,&nbsp;Frederick Reinig ,&nbsp;Emanuele Ziaco ,&nbsp;Davide Frigo ,&nbsp;Markus Greule ,&nbsp;Otmar Urban ,&nbsp;Josef Čáslavský ,&nbsp;Natálie Pernicová ,&nbsp;Miroslav Trnka ,&nbsp;Marco Carrer ,&nbsp;Ulf Büntgen ,&nbsp;Frank Keppler ,&nbsp;Jan Esper","doi":"10.1016/j.quascirev.2025.109270","DOIUrl":"10.1016/j.quascirev.2025.109270","url":null,"abstract":"<div><div>Tree-ring stable isotopes and wood anatomical traits emerged as powerful proxies for paleoclimate reconstructions, providing information beyond traditional ring width and wood density chronologies. However, comprehensive comparisons of these state-of-the-art tree-ring proxies derived from the same trees have yet to be performed to identify and differentiate their full paleoclimatic skill. Here, we assess covariance and climate signals in tree-ring width (TRW), maximum latewood density (MXD), cellulose stable carbon (<em>δ</em>¹³C_c) and oxygen (<em>δ</em>¹⁸O_c) isotopes, lignin methoxy carbon (<em>δ</em>¹³C_m) and hydrogen (<em>δ</em>²H_m) isotopes, radial cell lumen diameter (D_rad), and radial and tangential cell wall thickness (CWT_rad/CWT_tan) of ten Bosnian pines (<em>Pinus heldreichii</em>) from a treeline site on Mt. Smolikas, Greece. Proxy cross-comparison over the period 1861–2020 CE reveals strong covariance between detrended <em>δ</em>¹³C_c and <em>δ</em>¹³C_m (r ≥ 0.81). <em>δ</em>¹³C_c and <em>δ</em>¹⁸O_c exhibit the highest inter-series correlations (r ≥ 0.61) among all proxies. <em>δ</em>¹³C_c, <em>δ</em>¹³C_m, <em>δ</em>¹⁸O_c, together with D_rad, show considerable skill for reconstructing summer precipitation, whereas MXD and <em>δ</em>²H_m may be used for summer temperature reconstructions. Enhanced inter-series and hydroclimate correlations, along with a prolonged seasonality are significant advances of the isotopic and wood anatomical measurements compared to TRW. Our findings highlight the importance of integrating new isotopic, particularly <em>δ</em>¹³C_c, and xylem anatomical data into existing TRW networks to enhance our understanding of past hydroclimate variability and contextualize the recent aridification of the Mediterranean region.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"355 ","pages":"Article 109270"},"PeriodicalIF":3.2,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143509526","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ice core dating with the  36Cl/10Be ratio","authors":"Niklas Kappelt ,&nbsp;Raimund Muscheler ,&nbsp;Mélanie Baroni ,&nbsp;Juerg Beer ,&nbsp;Marcus Christl ,&nbsp;Christof Vockenhuber ,&nbsp;Edouard Bard ,&nbsp;ASTER Team ,&nbsp;Eric Wolff","doi":"10.1016/j.quascirev.2025.109254","DOIUrl":"10.1016/j.quascirev.2025.109254","url":null,"abstract":"<div><div>Extremely thinned layers and possible folding make the dating of the deepest sections of ice cores especially challenging. Cosmogenic radionuclides have the potential to provide independent age estimates. The ³⁶Cl/¹⁰Be ratio is largely independent of production rate changes that affect individual radionuclides and has an effective half-life of 384 kyr, making it an ideal tool for dating the new 1.5 Myr old ice core that the Beyond EPICA Oldest Ice Core project aims to retrieve at Little Dome C in East Antarctica. However, the loss of ³⁶Cl through hydrogen chloride outgassing at low accumulation sites complicates its application and the long-term decay of the ³⁶Cl/¹⁰Be ratio in ice has not been studied. Here, we show that ³⁶Cl is preserved in glacial periods and that the ³⁶Cl/¹⁰Be ratio decreases more slowly than expected from physical decay over the last 900 kyr. While the glacial ³⁶Cl flux decreases at the expected rate of physical decay within the uncertainty, the ¹⁰Be flux decreases faster, which may be linked to a post-depositional mobility of ¹⁰Be in deep ice and leads to the slower decrease of the ³⁶Cl/¹⁰Be ratio. In addition to this long-term trend, the ³⁶Cl/¹⁰Be ratio fluctuates around a fitted decay curve, which is likely caused by different climate sensitivities of the transport and deposition pathways of the individual radionuclides. Both effects need to be better understood and quantified to improve age estimates based on the ³⁶Cl/¹⁰Be ratio.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"355 ","pages":"Article 109254"},"PeriodicalIF":3.2,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143509532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spatial variations in sedimentary fluxes and paleoenvironment in the Sea of Okhotsk over the last 30 kyr","authors":"Qingchao Wang ,&nbsp;Jianjun Zou ,&nbsp;Xuguang Feng ,&nbsp;Yingchun Cui ,&nbsp;Ruxi Dou ,&nbsp;Zhi Dong ,&nbsp;Aimei Zhu ,&nbsp;Liangcong Fang ,&nbsp;Yanguang Liu ,&nbsp;Kunshan Wang ,&nbsp;Yonghua Wu ,&nbsp;Sergey A. Gorbarenko ,&nbsp;Yuriy P. Vasilenko ,&nbsp;Aleksandr A. Bosin ,&nbsp;Xuefa Shi","doi":"10.1016/j.quascirev.2025.109251","DOIUrl":"10.1016/j.quascirev.2025.109251","url":null,"abstract":"<div><div>Gaining insight into sedimentary fluxes provides a robust foundation for understanding the transport, deposition, and burial of terrestrial materials and other related substances at continental margins. The complex land-sea interactions and ocean dynamics have shaped the distinct sedimentary features of the Sea of Okhotsk across its spatial extent. However, our understanding of the evolutionary processes and the driving mechanisms of sedimentary fluxes in the Sea of Okhotsk during the late Quaternary remains elusive. Here, high-resolution sedimentological and elemental geochemical analyses of core LV87-55-1, retrieved from the central Sea of Okhotsk were selected to investigate sedimentary fluxes and paleoenvironmental history of this sea since 30 ka BP. The results indicate that the fluxes of detrital sediments were elevated during the last glacial period (30–14.7 ka BP), dominated by fine-grained detrital sediments sourced from Siberian mainland. During the last deglaciation and early to middle Holocene (14.7–4.2 ka BP), sedimentary fluxes decreased, and detrital sediments consisted of a mixture of sediments from the Siberian mainland, the Amur River, and Sakhalin Island. During the late Holocene (&lt;4.2 ka BP), the sedimentary fluxes reached their lowest level, while sediments were dominated by coarse-grained fractions from Sakhalin Island and the Okhotsk-Chukotka volcanic belt. Combined with a compilation of published data from 10 cores, we found distinct spatial variations in sedimentary fluxes across the Sea of Okhotsk. The sedimentary fluxes were high in the central and southern Sea of Okhotsk during the last glacial period and decreased since the last deglaciation, in contrast to the northern part, where the trend was reversed. Sea ice is the main environmental factor driving changes in sedimentary fluxes and detrital provenance, while sediment composition is also reworked by bottom current activity. We suggest that variations in sedimentary fluxes and sediment characteristics in the Sea of Okhotsk result from interactions between sea ice, bottom currents, river discharge, and sea level changes, which are in turn controlled by northern high-latitude insolation, atmospheric circulation and global ice volume changes.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"355 ","pages":"Article 109251"},"PeriodicalIF":3.2,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydroclimate variability in southwest China during Marine Isotope Stage 9: Insights from multi–proxy stalagmite records","authors":"Wei Jia ,&nbsp;Yan Yang ,&nbsp;Hai Cheng ,&nbsp;Tingyong Li ,&nbsp;Jingyao Zhao ,&nbsp;Shaoneng He ,&nbsp;Guangxin Liu ,&nbsp;Xiao Liu ,&nbsp;Lidan Lei ,&nbsp;Mingyang Li ,&nbsp;R. Lawrence Edwards","doi":"10.1016/j.quascirev.2025.109268","DOIUrl":"10.1016/j.quascirev.2025.109268","url":null,"abstract":"<div><div>As a potential analogue of the present interglacial, the Marine Isotope Stage 9 (MIS 9) can help predict anthropogenically induced warm climates. However, limited attention and scarce paleoclimate archives have constrained our comprehension of large climate systems like the Asian summer monsoon (ASM) during this period. To better understand the ASM variability in MIS 9, we examined a precisely dated and highly resolved multi–proxy stalagmite record (SMY–1) (spanning from 333.4 to 268.1 kyr B.P.) from Shuiming Cave in southwest China. Its δ¹⁸O reveals three warm substages (MIS 9a, 9c, and 9e) and two cold substages (MIS 9b and 9d), following the high–northern–latitude insolation and interhemispheric insolation gradients, underscoring a key role of orbital forcing and low–latitude hydrological changes on ASM variabilities. Regional hydroclimate conditions recorded by its δ¹³C and trace element ratios (Mg/Ca, Sr/Ca, and Ba/Ca) respond to the ASM intensity on millennial scales. Increased ASM precipitation led to higher soil microbial activity and vegetation density, reducing the prior calcite precipitation effect and the water–rock interaction duration. Furthermore, we identified two–step increases in δ¹⁸O and trace element ratios during the MIS 9/8 transition, coinciding with two pulses of ice–rafted debris events and the gradual decline of the Atlantic meridional overturning circulation. Similar change patterns of δ¹⁸O between MIS 9 and MIS 3, alongside identified Chinese Interstadials 18–25, demonstrate that universal millennial–scale climate oscillations in the North Atlantic during Late Pleistocene climate cycles influenced variations in ASM via ocean–atmospheric reorganizations. Interestingly, the comparatively lower amplitude of SMY–1 δ¹⁸O variation between the antepenultimate deglaciation and the MIS 9e interglacial contradicts findings from other Chinese stalagmites. This spatial heterogeneity reflects the combined influence of regional–scale moisture sources and isotopic fractionation process along pathways on Chinese stalagmite δ¹⁸O records.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"355 ","pages":"Article 109268"},"PeriodicalIF":3.2,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143509522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dynamics of animal grazing intensity on the central-eastern Qinghai-Tibetan Plateau during the middle-late Holocene","authors":"Tao Wang ,&nbsp;Xiaozhong Huang ,&nbsp;Jun Zhang ,&nbsp;Ning Wang ,&nbsp;Farqan Muhammad ,&nbsp;Derui Luo ,&nbsp;Lixiong Xiang ,&nbsp;Chong Huang ,&nbsp;Min Zheng ,&nbsp;Haicheng Wei","doi":"10.1016/j.quascirev.2025.109272","DOIUrl":"10.1016/j.quascirev.2025.109272","url":null,"abstract":"<div><div>Animal grazing is the primary livelihood of people on the Qinghai-Tibetan Plateau (QTP), but the history of grazing activity on the QTP remains unclear. The QTP also served as a crucial area for exchanges between people at varying altitudes and latitudes. We analyzed fossil fungal spores from a sediment core retrieved from Muricuo Lake (elevation: 4020 m a.s.l) on the central-eastern QTP, spanning the past ∼9200 cal yr BP. Combining our findings with other coprophilous fungal spore data, along with paleoclimate and human activity records from the central-eastern QTP, we discuss the history and possible influencing factors of grazing activity on the central-eastern QTP during the middle to late Holocene. Grazing activity may have increased around ∼3600 cal yr <span>BP</span> in the Muricuo Lake area, likely driven by a general increase in movement of humans into the central-eastern QTP, as supported by the increase in fungal spores and charcoal records in Muricuo Lake. After ∼1400 cal yr BP, grazing activity intensified in parallel with increased trade exchanges.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"355 ","pages":"Article 109272"},"PeriodicalIF":3.2,"publicationDate":"2025-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143479413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A late summer temperature reconstruction based on tree-ring maximum latewood density since AD 1246 on the southeastern Tibetan Plateau","authors":"Ru Huang ,&nbsp;Hong Yin ,&nbsp;Haifeng Zhu ,&nbsp;Eryuan Liang ,&nbsp;Atta Ullah ,&nbsp;Wolfgang Jens-Henrik Meier ,&nbsp;Fayaz Asad ,&nbsp;Achim Bräuning ,&nbsp;Jussi Grießinger","doi":"10.1016/j.quascirev.2025.109266","DOIUrl":"10.1016/j.quascirev.2025.109266","url":null,"abstract":"<div><div>The Tibetan Plateau (TP) is a critical component of the Earth's climate system, exhibiting high sensitivity to climate change. However, limited spatiotemporal coverage of meteorological observations hinders a comprehensive understanding of its long-term temperature variations. This study addresses this gap by presenting an August–September minimum temperature reconstruction for the southeastern TP since AD 1246, utilizing tree-ring maximum latewood density (MXD) as a proxy. Our reconstruction explains 42.3% of the variance observed in recent instrumental data. High consistency with published MXD chronologies from nearby regions validates the reconstruction's reliability. Furthermore, the comparison of our reconstruction with summer temperature field reconstructions suggests that those integrating diverse data sources—such as tree-ring width, density, and documentary evidence—through data assimilation techniques perform better in capturing pre-instrumental temperature variability in our study area. This highlights the importance of incorporating long tree-ring density data and other varied proxies into future data assimilation models for climate reconstructions. Additionally, large tropical volcanic eruptions exert a significant cooling effect, with reconstructed temperatures dropping by 0.33 °C and 0.37 °C in the eruption year and following year, respectively. Solar activity also appears to influence regional temperatures, with warm periods (AD 1720–1805 and AD, 1830–2008) generally coinciding with high solar activity and cold episodes (AD 1268–1344, AD 1429–1480, AD 1645–1715, and AD, 1806–1830) aligning with low solar activity. However, an exceptional cool period during strong solar activity (AD 1605–1638) suggests that other factors, such as volcanic eruptions, Atlantic Multidecadal Oscillation and Pacific Decadal Oscillation variability, might also be involved.</div></div>","PeriodicalId":20926,"journal":{"name":"Quaternary Science Reviews","volume":"355 ","pages":"Article 109266"},"PeriodicalIF":3.2,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143479783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}