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The expression of the MIS 12 glacial stage in Southeastern Europe and its impact over the Middle Pleistocene hominins in Megalopolis Basin (Greece) Glob. Planet. Change (IF 4.0) Pub Date : 2024-09-15 Geanina A. Butiseacă, Iuliana Vasiliev, Marcel T.J. van der Meer, Ines J.E. Bludau, Panagiotis Karkanas, Vangelis Tourloukis, Annett Junginger, Andreas Mulch, Eleni Panagopoulou, Katerina Harvati
Southern Europe is hypothesized to have acted as a glacial refugium for hominin populations during the Pleistocene. Of particular importance is South-East Europe, which most likely played a dual role, both as refugium and dispersal corridor, especially during the Middle Pleistocene glaciations, when drastic climatic conditions led to major sea level drops in the Aegean. However, little is known about
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Change of global land extreme temperature in the future Glob. Planet. Change (IF 4.0) Pub Date : 2024-09-13 Xinlong Zhang, Taosheng Huang, Weiping Wang, Ping Shen
Understanding future temperature extremes is pivotal to preparing for and mitigating the impacts of climate change. This study proposed machine learning techniques to develop a multi-model ensemble model for high-resolution projection of global land temperature extremes under different emission scenarios, hence providing enhanced precision over previous climate model projections. By utilizing the NEX-GDDP-CMIP6
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Impacts of moisture transport on extreme precipitation in the Central Plains Urban Agglomeration, China Glob. Planet. Change (IF 4.0) Pub Date : 2024-09-12 Yufan Chen, Shuyu Zhang, Guoqing Gong, Penghan Chen, Thian Yew Gan, Deliang Chen, Junguo Liu
In recent decades, the Central Plains Urban Agglomeration of China (CPUA) has faced recurring extreme precipitation events (EPEs), leading to severe floods, endangering residents, and causing significant property damage. This study examines the spatiotemporal patterns of summer EPEs in the CPUA from 1961 to 2022. We used the Hybrid Single-Particle Lagrangian Integrated Trajectory model to trace the
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Increasing cross-border dust storm from Mongolia to China during 1987–2022 Glob. Planet. Change (IF 4.0) Pub Date : 2024-09-11 Yihao Ma, Rui Mao, Cuicui Shi, Xingya Feng, Li Ma, Xingyu Song
Mongolia and northern China have the highest frequency of dust weather in Northeast Asia. Dust transport from Mongolia to China is a major cause of dust weather in northern China. However, there has been limited research on the frequency changes of cross-border dust storms from Mongolia to China over the past few decades. Based on observational data, we analyzed the variation in cross-border dust storms
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Potential effects of the Emeishan large igneous province on Capitanian marine anoxia in the Upper Yangtze region Glob. Planet. Change (IF 4.0) Pub Date : 2024-09-10 Mingzhi Kuang, Haifeng Yuan, Wenjie Li, Bolin Zhang, Chen Shen, Qinren Xiao, Xihua Zhang, Hanlin Peng, Cong Chen, Tianjun Li
The widespread Capitanian (late Guadalupian) marine anoxia/euxinia has long been regarded as a key driver of the end-Guadalupian (middle Permian) biotic crisis. However, the cause of this marine anoxia is debated, particularly regarding the influence of the Emeishan large igneous province (ELIP). To investigate the contribution of the ELIP to marine anoxia and the possible causal mechanisms, we undertook
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Western Mongolian Plateau exhibits increasing Holocene temperature Glob. Planet. Change (IF 4.0) Pub Date : 2024-09-10 Chong Huang, Xiaozhong Huang, Jinbao Li, Ling Wang, Lan Jiang, Lixiong Xiang, Jun Zhang, Yu Hu, Xiaoyan Mu, Min Zheng, Xiuxiu Ren, Tao Wang, Jiawu Zhang, Guoliang Lei, Otgonbayar Demberel, Xiaodong Liu, Natalia Rudaya, Antje Schwalb, Yanwu Duan, Jule Xiao, Fahu Chen
The scarcity of Holocene winter temperature records from the core area of the Mongolian-Siberian High (MSH) hampers our understanding of the long-term evolution of the MSH and its modulation of the East Asian Winter Monsoon (EAWM). Here we use the body size of Pediastrum, a new and sensitive temperature proxy, from the sediments of Tolbo Lake in the western Mongolian Plateau, to reconstruct changes
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Sensitivity of western Pacific subtropical high to regional sea surface temperature changes Glob. Planet. Change (IF 4.0) Pub Date : 2024-09-06 Lingyu Zhou, Yan Xia, Chen Zhou, Chuanfeng Zhao, Fei Xie, Lu Dong
The western Pacific subtropical high (WPSH) exerts significant influence on the climate of the Pacific region and East Asia. In this study, we systematically examined the responses of the WPSH intensity and position to regional sea surface temperature (SST) changes using idealized SST patch experiments with a climate model. Our findings reveal that the WPSH intensity is most sensitive to northern tropical
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A 70-year record reveals the poleward shift of tropical cyclone tracks in the east China coastal ocean is twice that of landward shift Glob. Planet. Change (IF 4.0) Pub Date : 2024-09-05 Chaoran Xu, Yang Yang, Jianjun Jia, Jeremy D. Bricker, Ya Ping Wang
Analyzing the spatial-temporal changes in tropical cyclone (TC) tracks in the east China coastal ocean (ECCO) to quantify the magnitude of poleward and landward migration of TCs is of significant importance for coastal disaster mitigation and planning due to its susceptibility to the impacts of TCs. In this study, the TCs that affected the ECCO from 1949 to 2022 are classified into three typical types
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Enhanced deep-water circulation facilitated rare earth elements enrichment in pelagic sediments from the northwestern Pacific Ocean Glob. Planet. Change (IF 4.0) Pub Date : 2024-09-03 Dongjie Bi, Xuefa Shi, Mu Huang, Fangyu Shen, Miao Yu, Ying Zhang, Fengdeng Shi, Jihua Liu
The lack of knowledge about the enrichment mechanism of rare earth elements and yttrium (REY) in deep-sea sediments is impeding the development of theories and exploration strategies for pelagic REY-rich sediments. Ocean circulation variability seems to be crucial in enriching REY in pelagic sediments, which, however, has not been extensively studied. Here, we examined the Pb-Nd isotopic signals of
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Late Triassic carbon isotope anomalies in the Canadian Cordillera: Paleoenvironmental disturbances associated with the Norian/Rhaetian boundary and end-Triassic mass extinction event Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-30 Jerry Z.X. Lei, Jon M. Husson, Martyn L. Golding, Connor S. van Wieren, Michael J. Orchard, Andrew H. Caruthers, Elizabeth S. Carter
The Late Triassic was a particularly turbulent interval of the geologic past, marked by repeated paleoenvironmental instability culminating in the end-Triassic mass extinction (ETME). These episodes of disturbance are associated with enhanced volcanism, harbinger of the eventual break-up of Pangea. As evidenced by geochemical signals in the marine carbon isotope record, these events were often significant
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A refined model for the mechanisms of Precambrian phosphorite formation Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-30 Quzong Baima, Xiangkun Zhu, Weibing Shen, Zhaofu Gao, Bin Yan, Yuelong Chen
Despite the economic and scientific importance of Precambrian phosphorites, our understanding of the mechanism leading to their formation remains limited, including for the largest phosphogenic episode in the late Neoproterozoic. To improve our understanding of Precambrian phosphorite formation, we combined sedimentology, petrography, and elemental, and Fe-C isotopic analyses to study the two main
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Increasing heat waves frequencies over India during post-El Niño spring and early summer seasons Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-30 G.Ch. Satyanarayana, Sambasivarao Velivelli, K. Koteswara Rao, Jasti S. Chowdary, Anant Parekh, C. Gnanaseelan
The increasing frequency of extreme Heat Waves (HWs) has generated significant societal impacts in recent years. This study used different observational datasets to investigate the HW characteristics over India during the post-El Niño spring and early summer seasons (April to June; AMJ). Analysis suggests that HW days are more prevalent over India, predominantly increased in south-central and northwest
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Corrigendum to “Global-scale daily riverine DOC fluxes from lands to the oceans with a generic model” [Global and Planetary Change, volume 194 (November 2020)] Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-27 C. Fabre, S. Sauvage, J.-L. Probst, J.M. Sánchez-Pérez
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Diversity of the climatological seasonal march of East Asian summer monsoon rainfall among the CMIP6 models Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-24 Tiantian Yu, Wen Chen, Hainan Gong, Xiaoqing Lan, Chaofan Li
We investigated the reproducibility of the observed seasonal march of the East Asian summer monsoon (EASM) in the climate models participating in Phase 6 of the Coupled Model Inter-comparison Project (CMIP6). Overall, the multi-model ensemble of 24 CMIP6 models captured the major characteristics of the seasonal march of the monsoon, but large intermodel diversity was seen. Most of the models simulated
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Middle Pleistocene weakening of the Indian summer monsoon driven by global cooling Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-23 Zhaoying Ma, Jinbo Zan, Xiaomin Fang, Genhou Wang, Weilin Zhang, Maohua Shen
The Indian Monsoon profoundly impacts the climate, agriculture, and economy of the Indian subcontinent and southwestern China. However, the long-term variability of the Indian summer monsoon (ISM) and its forcing mechanism in the context of the stepwise Pleistocene cooling trend are poorly understood, due to the lack of high-quality terrestrial paleoclimate records. Quaternary loess and paleosol deposits
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Primary productivity recovery and shallow-water oxygenation during the Sturtian deglaciation in South China Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-22 Xubin Wang, Lin Dong, Haoran Ma, Xianguo Lang, Ruimin Wang
The Cryogenian Period (ca. 720–635 Ma) marks a key node in Earth's history, characterized by two global glaciations when the paleo-tropical regions were covered by glaciers, namely the Sturtian and Marinoan Snowball Earth events. Within the Cryogenian, the evolution of primary producers persisted, evidenced by the worldwide discovery of diverse microfossils and the proliferation of algae in the interglacial
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The Ediacara Biota of the Wood Canyon formation: Latest Precambrian macrofossils and sedimentary structures from the southern Great Basin Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-19 Scott D. Evans, Emily F. Smith, Prescott Vayda, Lyle L. Nelson, Shuhai Xiao
Fossils of the Ediacara Biota preserve the oldest indisputable evidence of macroscopic animal life. Although new finds continue to expand the near global distribution of such organisms, relatively abundant and diverse populations of these primarily soft-bodied taxa are known from just a handful of localities. More commonly, reports of late Precambrian fossils consist of comparably lower diversity assemblages
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Significance testing for cross correlation: A critical examination of correlations between ENSO and GRACE-derived terrestrial water storage variabilities Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-17 Chunchun Gao, Benjamin F. Chao, Bing Tan, Xudong Wu
The cross correlation has a wide range of applications in geophysical fields for measuring linear connections or relationships among physical quantities. Nonetheless, there remains a dearth of comprehensive discourse regarding its statistical significance testing, which is crucial for differentiating meaningful outcomes from those merely stemming from fortuity or pure randomness. Conventional theoretical
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Melting of Totten Glacier, East Antarctica since the Last Glacial Maximum Revealed by Beryllium Isotope Ratios of Marine Sediment Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-17 Zihan Huang, Bethany C. Behrens, Yosuke Miyairi, Takahiro Aze, Stephen Obrochta, Takato Takemura, Reisuke Kondo, Alexandra Post, Leanne K. Armand, Philip O'Brien, Amy Leventer, Yusuke Yokoyama
The Totten Glacier of East Antarctica drains a basin containing about 3.5 m of sea-level rise equivalent ice. While Totten Glacier is generally considered somewhat more stable than the rapidly retreating sectors of the West Antarctic Ice Sheet, such as the Amundsen Sea Embayment and Getz Ice Shelf, our understanding of its intricate dynamics and interaction with the Southern Ocean since the Last Glacial
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The necessity of coupling the legacy effect with temperature response in crop phenology models Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-14 Dingrong Wu, Jing Gao, Peijuan Wang, Jianying Yang, Yuping Ma, Zhiguo Huo, Qiang Yu
Global climate change has changed vegetation phenology substantially around the world. However, the necessity of coupling legacy effects with temperature responses in phenological models remains unclear. The objective of this study was to demonstrate that legacy effects [based on day of year (DOY) of phenology events] have substantial positive impacts on crop phenology. Data from 1883 crop×site combinations
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Influence of mountain orientation on precipitation isotopes in the westerly belt of Eurasia Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-13 Longhu Chen, Guofeng Zhu, Qin Qin Wang, Linlin Ye, Xinrui Lin, Siyu Lu, Yinying Jiao, Rui Li, Gaojia Meng, Yuhao Wang, Jiangwei Yang, Chen Jia
Mountains have a significant impact on the transport path of water vapour and local meteorological variations. Therefore, understanding the influence mechanism of mountains on stable isotopes of precipitation is essential. In this study, we analyzed the precipitation stable isotope data within the Westerlies in the Eurasian continent. The results indicate the following: (1) East-west-oriented mountain
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Miocene climate cooling and aridification of Antarctica may have enhanced syn-extensional magmatism in the western Ross Sea Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-12 Marco Fioraso, Pietro Sternai, Valerio Olivetti, Maria Laura Balestrieri, Massimiliano Zattin, Gianluca Cornamusini
Continental rift systems are commonly characterized by volcanism with parental basaltic magmas sourced from the mantle. Erosion of the rift shoulders and sedimentation in the adjacent basins can affect the stress and thermal fields at depth, thereby affecting partial mantle melting. However, the sensitivity of magmatic activity to such surface forcing is elusive. Geological observations from the western
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Excess topography and outburst flood: Geomorphic imprint of October 2023 extreme flood event in the Teesta catchment of Eastern Himalayas Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-11 Abhishek Kashyap, Mukunda Dev Behera
The 2023 South-Lohnak Lake outburst flood event across the upstream Teesta catchment triggered short-lived, high-magnitude flooding and substantial socioeconomic disruption downstream. We performed landscape analysis across the Teesta catchment using topographic metrics to understand the geomorphic response to this extreme flood event. We estimated the various topographic metrics such as k anomaly
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Contribution of internal variability to the Mongolian Plateau summer precipitation trends in MPI-ESM large-ensemble model Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-10 Yulan Li, Hainan Gong, Wen Chen, Lin Wang
Summer precipitation over the Mongolian Plateau (MP) has experienced a consistent decline in recent decades. While the influence of atmospheric wave train on this reduction in precipitation has been recognized in prior studies, this study delves deeper into the physical mechanisms and quantifies the contributions of the internal atmosphere and oceanic variations to the diminishing precipitation utilizing
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Last glacial burial of woody debris in deep-sea sediments and its carbon cycling significance Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-08 Hongchao Zhao, Zhifei Liu, Baozhi Lin, Yulong Zhao
Burial of terrigenous organic carbon in marine sediments serves as a net sink for atmospheric CO and therefore regulates global climate on geologic time scales. Woody debris is an important carrier of terrigenous organic carbon, but its burial in deep-sea sediments has been rarely reported. Here, woody debris from the last glacial sediments in the southern South China Sea was used for analyzing its
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Long-term mercury accumulation and climate reconstruction of an Australian alpine lake during the late Quaternary Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-08 Margot Aurel Schneider, Larissa Schneider, Haidee Cadd, Zoë A. Thomas, Antonio Martinez-Cortizas, Simon Edward Connor, Georgia L. Stannard, Simon Graeme Haberle
Mercury (Hg) is a volatile metal of international concern due to its toxicity, with a large atmospheric emission and transport capacity. The biogeochemical cycle of Hg is sensitive to changes in climate, yet our understanding of the specific impact of climatic factors on the Hg cycle remains limited. Here we use a multi-proxy framework, supported by AMS C dating, to interpret climatic events in South-Eastern
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Flood reconstruction – The unexpected rather frequent event at River Ahr in July 2021 Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-06 Thomas Roggenkamp, Jürgen Herget, Thomas Roggenkamp
In July 2021, a devastating flood occurred in the Ahr Valley, in western Germany, which caused 134 fatalities and extreme economic damage. Because gauges were destroyed during the flood or were undersized, peak discharge could not be measured. Flood level indicators were used to measure the maximum water level along the river in the aftermath of the flood. Using the Manning's equation, peak discharge
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The response of terrestrial vegetation carbon use efficiency to global environmental changes Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-05 Yahai Zhang, Aizhong Ye
Terrestrial vegetation carbon use efficiency (CUE) is a key measure for assessing carbon transfer from the atmosphere to terrestrial biomass, crucial for understanding carbon cycling and allocation in ecosystems. CUE provides valuable insights into how terrestrial ecosystems respond to environmental changes. In this study, we utilized satellite datasets (MODIS and GLASS), MsTMIP models, and TRENDY
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Spatial and temporal variations of vegetation cover on the central and eastern Tibetan Plateau since the Last glacial period Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-02 Lina Liu, Nannan Wang, Yanrong Zhang, Jie Liang, Jian Ni, Xianyong Cao
Long-term changes in vegetation cover of the Tibetan Plateau (TP) are essential for understanding vegetation change under future climate. Previous studies have mainly concentrated on the Holocene and the eastern region of the TP, but here, we establish a relationship between modern pollen data (including both pollen percentage and concentration) and vegetation cover using a random forest (RF) model
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Dynamic relationships and propagation characteristics between meteorological drought and vegetation drought based on a three-dimensional identification algorithm Glob. Planet. Change (IF 4.0) Pub Date : 2024-08-02 Fei Wang, Hexin Lai, Zipeng Wang, Ruyi Men, Yanbin Li, Yunzhong Jiang, Kai Feng, Qingqing Tian, Xuefang Du, Yanping Qu
Drought is a regional phenomenon and progressive in specific dimensions of time and space, with significant continuity and dynamic characteristics on a spatiotemporal scale. The meteorological drought acts as a driving factor for vegetation drought, and studying the response characteristics of vegetation drought to meteorological drought is crucial for comprehending the mechanisms of drought evolution
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Spatiotemporal disparity of volcanogenic mercury records in the southwestern Neo-Tethys Ocean during the Permian–Triassic transition Glob. Planet. Change (IF 4.0) Pub Date : 2024-07-29 Jianbo Chen, Yan-ling Zhou, Wen-jie Liu, Binjian Lu, Jiayi Wu, Guangyi Sun, Zhuo Feng
The Permian–Triassic (P-Tr) transition marks a vital period in Earth's history, characterized by major environmental perturbations and the largest mass extinction event of the Phanerozoic, with volcanic activities playing a key role. Previous investigations of mercury (Hg) anomalies in over 50 marine and terrestrial sections spanning the P-Tr boundary (PTB) have suggested a predominant volcanogenic
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Heterogeneous marine response during the Toarcian Oceanic Anoxic Event (TOAE): The potential role of storminess Glob. Planet. Change (IF 4.0) Pub Date : 2024-07-28 Yuzhu Ge, Zhong Han, Thomas J. Algeo, David B. Kemp, Luya Wu
The Toarcian Oceanic Anoxic Event (TOAE; ∼183 Ma) represents an important hyperthermal and deoxygenation event in the Early Jurassic. However, TOAE marine records are spatially heterogeneous with regard to nutrient levels, primary productivity, redox conditions and organic enrichment. This non-uniform response to global hyperwarming is not readily accounted for by local variations in paleogeography
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Planktonic foraminifera response to the azores high and industrial-era global warming in the central-western Mediterranean Sea Glob. Planet. Change (IF 4.0) Pub Date : 2024-07-27 Serena Ferraro, Alessandro Incarbona, Sergio Bonomo, Lucilla Capotondi, Luigi Giaramita, Leonardo Langone, Nereo Preto, Giovanni Surdi, Elena Zanola, Giorgio Tranchida
The Mediterranean Sea is warming about 20 % more rapidly than global ocean and this phenomenon is impacting ecosystems and biodiversity. Planktonic foraminifera are an important component of surface and subsurface water ecosystems and food chains. Their species communities have been altering across the oceans since the Industrial Era, in response to the ongoing climate change, especially in the western
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Temperature modulation of Northern Mid-Latitude Westerly winds intensity and displacement across the warm Pliocene Glob. Planet. Change (IF 4.0) Pub Date : 2024-07-26 Ting Chen, Qingsong Liu, Hong Ao, David B. Ryves
The mid-latitude westerly winds are fundamental components of the Earth's climate system. However, their detailed variations during the entire Pliocene, a critical epoch often considered the closest analogue to future climate scenarios, remain poorly constrained. Here, we investigate the continuous, long-term evolution of Northern Hemisphere Mid-latitude Westerly winds (NHMW) between 6.5 and 2.5 Ma
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Precipitation dynamics and its interactions with possible drivers over global highlands Glob. Planet. Change (IF 4.0) Pub Date : 2024-07-26 Haider Abbas, Azfar Hussain, Ming Xu
The climate and ecosystem in the highland regions are fragile and vulnerable to climate change. This study used ERA5, CRU, and CHIRPS at 0.5° × 0.5° resolution to assess spatiotemporal precipitation trends over global highlands from 1981 to 2021. The Standardized anomaly index (SAI) is used to evaluate the comparative anomalies between the datasets, while the Mann-Kendall and Sen Slope estimator tests
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Anaerobic oxidation of methane and greigite formation: Evidence of isotopically heavy pyrite in Pleistocene coastal sediments from the South Yellow Sea Glob. Planet. Change (IF 4.0) Pub Date : 2024-07-26 Xiaoxiao Yu, Xi Mei, Jianxing Liu, Baichuan Duan, Rui Zhang, Tiegang Li, Gangjian Wei, Mang Lin
Diagenetic alteration of magnetic minerals, driven by closely linked C-S-Fe cycles, is highly likely to complicate the paleomagnetic record. In addition to the anomalous diagenetic paleomagnetic signatures caused by ferromagnetic greigite growth, pyrite sulfur isotope compositions are often “heavy” (i.e., δS > 0). However, the dependencies and mechanistic origins of these signatures remain controversial
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Interannual variation of the westward ridge point of the Western Pacific subtropical high in boreal winter Glob. Planet. Change (IF 4.0) Pub Date : 2024-07-23 Shu Gui, Jinxin Cheng, Ruowen Yang, Qiulan He, Zizhen Dong, Ji Ma, Qucheng Chu, Meiyi Hou
This study adopts a novel dynamic index of the westward ridge point (WRP) of the western Pacific subtropical high (WPSH) to investigate the interannual variation of the WPSH in boreal winter. The WRP index based on the theory of gradient wind approximation is particularly suitable for boreal winters. The WRP index comprises two dimensions that depict the zonal and meridional movement of the WPSH, respectively
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Contourite-like deposits suggest stronger-than-present circulation in the Plio-Pleistocene Red Sea Glob. Planet. Change (IF 4.0) Pub Date : 2024-07-23 Neil C. Mitchell, Marco Ligi, Jonas Preine, Diederik Liebrand, Moamen Ali, Alessandro Decarlis
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The potential role of insolation in the long-term climate evolution since the early Pleistocene Glob. Planet. Change (IF 4.0) Pub Date : 2024-07-23 Xiaolin Ma, Mengfei Yang, Yachen Sun, Haowen Dang, Wentao Ma, Jun Tian, Qian Jiang, Lang Liu, Xiaobo Jin, Zhangdong Jin
The distribution of insolation over time and space is a significant driver of climate change on orbital timescales. However, the influence of insolation on long-term climate evolution remains poorly understood due to the absence of a discernible long-term trend regulated by Earth's orbit. In this study, we present a sea surface temperature anomaly (SSTA) stack spanning the past 2 Myr, compiled from
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The Siberian High drove increasing dust storm activity on the Tibetan Plateau on the centennial scale during the past 2000 years Glob. Planet. Change (IF 4.0) Pub Date : 2024-07-23 Zhitong Chen, Shengqian Chen, Jifeng Zhang
Precipitation records from the Tibetan Plateau (TP) for the past ∼2000 years show a north–south dipole pattern. Precipitation is one of the main factors affecting dust storms in this region, but it is unclear whether regional differences exist in dust storm activity and its driving mechanisms across the entire TP, and whether these mechanisms were consistent on the Holocene millennial scale and the
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Holocene dust storm variations across northern monsoonal Asia and arid central Asia: Contrasting impacts of climate change Glob. Planet. Change (IF 4.0) Pub Date : 2024-07-23 Shengqian Chen, Jianbao Liu, Shuai Ma, Yijiao Fan, Jia Jia, Jianhui Chen, Fahu Chen
Arid inner Asia, encompassing northern monsoonal Asia (NMA) and arid central Asia (ACA), is the world's second largest dust source region, emitting large quantities of dust particles that travel vast distances around the globe. Previous studies have revealed that the precipitation/moisture variations between NMA and ACA show an out-of-phase or anti-phase relationship on a multi-millennial timescale
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Enhanced mixing of north Pacific deep western-boundary currents after Panama seaway closure Glob. Planet. Change (IF 4.0) Pub Date : 2024-07-20 Xiaodong Jiang, Xiaoming Sun, James R. Hein, Xuefa Shi, Yao Guan, Yumin Chou, Weijie Zhang, Qingsong Liu
The near closure of the Panama Seaway during the late Miocene resulted in the modification of deep-ocean currents and the formation of modern oceanic circulation. However, it is unclear how this closure impacted the north Pacific western-boundary deep circulation since the late Miocene. Here, we combine Nd isotope records in the north Pacific and a newly developed water-mass proxy (amorphous Fe hydroxide
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High resolution Ordovician carbon isotope chemostratigraphy in South China and its significance for global correlation Glob. Planet. Change (IF 4.0) Pub Date : 2024-07-18 Fangyi Gong, Xiaocong Luan, Mikael Calner, Oliver Lehnert, Yuchen Zhang, Guanzhou Yan, Xin Wei, Rongchang Wu
Based on the Shidi-1 drill core, this paper presents new and highly time resolved carbon isotope data (δC) for the Early Ordovician through Early Silurian of the Yangtze Platform, South China. Five carbon isotopic shifts (C1-C5) through the late Tremadocian to the Katian have been recognized in the Shidi-1 drill core recordings. Together with previously published isotope data, a composite carbon isotope
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Shallow-water redox evolution from the Ediacaran to the early Cambrian: Linkages to the early animal innovations Glob. Planet. Change (IF 4.0) Pub Date : 2024-07-18 Guang-Yi Wei, Da Li, Zunli Lu, Ganqing Jiang, Hong-Fei Ling
The oceanic oxygenation from the Ediacaran to the early Cambrian (ca. 635–520 Ma) has been commonly linked with the radiation or innovation of early metazoans. However, in this period, the spatio-temporal changes in redox states have not been well constrained for shallow seawater that is proposed to be potential habitats for most metazoans. Here, we report new iodine (I) concentration and Cerium anomaly
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Chemical–to–reverse weathering triggered a pronounced positive carbon isotope excursion in a forced regressive to transgressive dolostone succession during the terminal Ediacaran glaciation Glob. Planet. Change (IF 4.0) Pub Date : 2024-07-18 Yan Zhang, Guangyou Zhu, Xi Li, Yifei Ai, Pengzhen Duan, Mengqi Li, Jincheng Liu
The terminal Ediacaran (∼551–541 Ma) was a critical period in Earth's history witnessing the coupled evolution of tectonism, climate, marine environment, and biodiversity, during which a global pronounced positive carbon isotope excursion (i.e., EP3) was recorded in marine carbonates. However, there is still a lack of systematic research on its triggering mechanism. Here, we present high-resolution
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Late Quaternary paleoclimate reconstructions in Bhutanese Himalaya based on glacial modelling Glob. Planet. Change (IF 4.0) Pub Date : 2024-07-14 Weilin Yang, Wenchao Chu, Yingkui Li, Xu Peng, Gengnian Liu
Paleoclimate change can be quantified by modelling the paleoglacier extents at well-dated moraines. However, previous studies typically use paleo-precipitation changes derived from climate proxies in other locations to constrain paleo-temperature changes. This approach may lead to significant uncertainties due to the lack of a physical basis and spatial-temporal representativeness. To address this
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Boron isotopic compositions of middle Miocene to recent shallow-water carbonates from the South China Sea: Assessing diagenetic effects and implications for paleoclimate changes Glob. Planet. Change (IF 4.0) Pub Date : 2024-07-14 Xinran Chen, Feifei Zhang, Yibo Lin, Mengchun Cao, Haizhen Wei, Changgui Xu, Caiwu Fan, Shu-zhong Shen
The partial pressure of atmospheric CO (CO) significantly influences global climate change and biological evolution through geological history. Boron isotopic composition (δB) in carbonates has been used to reconstruct the paleo-pH of seawater, providing insight into atmospheric CO levels. However, the fidelity of δB records in marine carbonates due to diagenesis remains uncertain. Here, to understand
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A preliminary integrated analysis of regional paleoclimate variations in China over the past ∼ 21 ka Glob. Planet. Change (IF 4.0) Pub Date : 2024-07-14 Huayu Lu, Yan Zhao, Xiangdong Yang, Haibing Wu, Cheng Zhao, Jingjing Wang, Xiaoyong Wang, Xueyuan Kuang, Xiaojian Zhang, Chunmei Ma, Fuzhi Lu, Xiayun Xiao, Wenchao Zhang, Hanlin Wang, Zhiwei Xu, Jun Cheng, Zhuo Zheng, Feng Shi, Enlou Zhang, Chen Liang, Zhenghui Huang, Chenghong Liang, Shuangwen Yi, Jiang Wu, Kehan Shao, Yao Gu, Hongyan Zhang, Xusheng Li, Zhiyong Han, Xianyan Wang, Sumin Wang, Zhengtang
In this study, we employ biological, geochemical and mineral, and physical proxies to quantitatively and semi-quantitatively reconstruct regional paleoclimate variations in China over the past ∼21 thousand years (ka). We have constructed state-of-the-art transfer functions between proxies and climatic variables in East Asia, revealing substantial paleoclimate variability, and demonstrate significant
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Isotopically light Mo in sediments of methane seepage controlled by the benthic Fe–Mn redox shuttle process Glob. Planet. Change (IF 4.0) Pub Date : 2024-07-14 Xiaoming Miao, Jiangong Wei, Jingrui Li, Xiting Liu, Dong Wang, Jie Li, Xiuli Feng
Methane seepage has been extensively observed in various continental margin settings. It has profound effects on the marine redox environment and the molybdenum (Mo) cycles in marine sediments. Therefore, there has been much recent attention on the redox-sensitive behavior of Mo in methane seepage environments. However, the characteristics of the Mo isotope composition in the cold-seep system remain
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Impacts of climate change on the geographic distribution patterns of pelagic fishes in the Southern Ocean Glob. Planet. Change (IF 4.0) Pub Date : 2024-06-30 Yifan Zhai, Yugui Zhu, Daomin Peng, Jiansong Chu
Pelagic fishes are a key trophic component of the Southern Ocean ecosystem. However, understanding the spatial and temporal changes in geographic distribution patterns of pelagic fishes in the context of climate change remains limited. This research applied the MaxEnt model to project the distributions of current and future (2100s) suitable habitats for ten major pelagic fish species in the Southern
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The joint effects of the El Niño-Southern Oscillation and Arctic Oscillation on tropical Indian Ocean heat flux during boreal winter Glob. Planet. Change (IF 4.0) Pub Date : 2024-06-29 Yi Chen, Yiwen Shi, Daoyi Gong
In this study, the joint effects of the El Niño-Southern Oscillation (ENSO) and Arctic Oscillation (AO) on winter net surface heat flux () anomalies over the tropical Indian Ocean (TIO) are investigated for the 1979/1980–2017/2018 period. The results show that, in multisource datasets, the pattern for El Niño plus positive AO cases is the most robust. The major feature of is dominated by a significant
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Mongolia dust transport across borders under the background of global warming Glob. Planet. Change (IF 4.0) Pub Date : 2024-06-28 Yue Zhang, Yu Chen, Siyu Chen, Khan Alam, Junyan Chen
Mongolia's ecosystem has suffered severe damage due to factors such as global warming, population growth, and land management change. In this regard, Mongolia's dust (MD) events have significantly impacted the social and economic development of both local and surrounding areas. The transport of MD significantly impacts the dust concentrations in China, and should not be ignored. To address this issue
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Linking Taiwan to the Cathaysia Block during the Cenozoic: Evidence from Pb isotopes in detrital K-feldspar Glob. Planet. Change (IF 4.0) Pub Date : 2024-06-28 Ce Wang, Liangjie Wei, Cheng-Shing Chiang, David A. Foster, Heqi Cui, Ming Su
The Cenozoic sedimentary rocks on the island of Taiwan hold significant implications for understanding tectonic and drainage evolutions in SE China, but the provenance of these rocks remains controversial. Here we derived Pb isotopes in detrital K-feldspars from the drainage systems in western Taiwan to evaluate the provenance of sediments and reveal the evolution of Cenozoic sedimentary. Our findings
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New insights on the interannual surface mass balance variability on the South Shetland Islands glaciers, northerly Antarctic Peninsula Glob. Planet. Change (IF 4.0) Pub Date : 2024-06-28 Christian Torres, Deniz Bozkurt, Tomás Carrasco-Escaff, Jordi Bolibar, Jorge Arigony-Neto
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Hydroclimate variability in the Tropical Andes recorded by δ18O isotopes from a new network of Polylepis tarapacana tree-rings Glob. Planet. Change (IF 4.0) Pub Date : 2024-06-28 Claudio Álvarez, Duncan A. Christie, Álvaro González-Reyes, Thomas T. Veblen, Gerhard Helle, Carlos LeQuesne, Milagros Rodriguez-Caton, Paul Szejner, Felipe Flores-Sáez, Tania Gipoulou-Zúñiga, Manuel Suazo-Álvarez, Tomás Muñoz-Salazar, Diego Aliste, Mariano S. Morales, Ariel Muñoz, Ricardo Villalba
Stable oxygen isotopes records (δO) in tree-rings are commonly used to assess the response of trees to environmental variability being a valuable tool for studying past climate at different temporal and spatial scales. This is particularly relevant in semi-arid regions like the southern Tropical Andes, where ongoing environmental changes coincide with a rapidly increasing demand for hydrological resources
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Spatiotemporal distribution and morphological diversity of the Cambrian Wiwaxia: New insights from South China Glob. Planet. Change (IF 4.0) Pub Date : 2024-06-28 Haijing Sun, Fangchen Zhao, Ruolin Wu, Han Zeng, Zhixin Sun
is a well-known Cambrian animal and a relative of annelids and molluscs, characterized by its densely arranged, imbricated dorsal sclerites. Despite its prevalence in the fossil record, the scarcity of articulated specimens leading to persistent uncertainties regarding its morphological diversities and evolutionary history has fueled ongoing investigations. This study presents an additional articulated
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Spatial heterogeneity, terminus environment effects and acceleration in mass loss of glaciers and ice caps across Greenland Glob. Planet. Change (IF 4.0) Pub Date : 2024-06-28 Michael Grimes, Jonathan L. Carrivick, Mark W. Smith
Greenland's peripheral glaciers and ice caps (GICs) contribute significant amounts of meltwater to the oceans but also affect local economies and livelihoods. Here we created multi-temporal geodetic elevation change datasets to compute mass changes for 6149 glaciers around the entire periphery of Greenland. These glaciers have lost a total of at least 276 ± 55 Gt of ice, or 0.76 ± 0.15 mm sea level
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Skill of isotope-enabled climate models for daily surface water vapour in East Asia Glob. Planet. Change (IF 4.0) Pub Date : 2024-06-27 Shengjie Wang, Yuqing Qian, Kei Yoshimura, Hayoung Bong, Camille Risi, Zhongwang Wei, Hongxi Pang, Wei Xiao, Shijun Lei, Meng Xing, Pei Zhao, Huawu Wu, Yudong Shi, Di Wang, Mingjun Zhang
The isotope-enabled general circulation models (GCM) have been widely applied to simulate the variability of stable isotopes in meteoric water at various time scales. The in-situ observations of water vapour isotopes are an important basis for assessing the performance of isotope-enabled GCMs, although they are still limited. Here we compiled the observations of near-surface water vapour isotopes on
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Extremely 26Mg-enriched authigenic clays from the Ediacaran Doushantuo Formation (South China) indicating the coupled carbonate-silicate diagenesis Glob. Planet. Change (IF 4.0) Pub Date : 2024-06-25 Tianzheng Huang, Bing Shen, Xiaoli Wang, Haoran Ma, Chao Li, Chuanming Zhou
In the aftermath of Marinoan global glaciation (∼650–635 Ma), the deglacial intense continental weathering tended to dramatically lower the atmospheric pCO level, potentially driving the Earth back to the glacial climatic condition. However, the resultant global cooling and glaciation did not occur. The CO drawdown by continental weathering might have been compensated by additional CO release via reverse
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Precipitation mechanism of Mn ore deposits in the Datangpo Formation, Nanhua Basin, South China Glob. Planet. Change (IF 4.0) Pub Date : 2024-06-24 Hua Chen, Haifeng Fan, Danish Khan, Xi Jiang, Lianjun Feng, Hanjie Wen, Huanhuan Tian, Xiangkun Zhu
During the interglacial period of the Cryogenian glaciation, the extensive “Datangpo-type” manganese ores were deposited in the Nanhua Basin. However, there has been significant controversy over the precipitation mechanism of manganese for decades. Based on iron and nitrogen isotope data from the manganese ores of the Datangpo Formation in Chongqing (South China), combined with previous research, we