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Variations of Asian summer monsoon and regional hydroclimate between the MIS 7.1 and 6.5 Glob. Planet. Change (IF 4.0) Pub Date : 2025-02-07 Xiumin Zhai, Jingwei Zhang, Yi Li, Yijia Liang, Kan Zhao, Qingfeng Shao, Yongjin Wang, Xinggong Kong
Paleoclimatic evidence provides critical insights into the rhythm and mechanisms of the Asian summer monsoon (ASM). In this study, 1221 paired stalagmite δ18O and δ13C records, constrained by 20 U/Th dates, are used to reconstruct ASM and regional hydroclimate changes between MIS 7.1 and 6.5 (∼196.6 and ∼ 166.0 kyr BP). The major findings are as follows: 1) ASM changes did not consistently align with
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Nonlinear feedback of Asian summer monsoon to abrupt events in North Atlantic: Evidence from a precisely dated speleothem record during late MIS3 Glob. Planet. Change (IF 4.0) Pub Date : 2025-02-06 Xi Chen, Jingyao Zhao, Kexin Wang, Xiyu Dong, Jiahui Cui, Liangkang Pan, Carlos Pérez-Mejías, Hai Cheng
Millennial-scale climate oscillations, particularly Dansgaard-Oeschger (DO) events, were prevalent during Marine Isotope Stage 3 (MIS3), but their regional responses/feedbacks remain poorly understood. We present a high-resolution (∼4 years) speleothem δ18O record from the Sichuan Basin, spanning late MIS3, with 56 precise 230Th dates (∼ ± 60 years) and approximately ∼4804 fluorescence annual laminas
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A decrease in low-latitude weathering flux facilitated the demise of the Late Paleozoic Ice Age Glob. Planet. Change (IF 4.0) Pub Date : 2025-02-06 Shi Sun, Anqing Chen, Mingcai Hou, James G. Ogg, Qian Li, Shuai Yang, Guanghui Huang, Runan Yong
The Late Paleozoic Ice Age (LPIA) was a series of modulated glacial-interglacial pulses that characterized the climate of the late Carboniferous through Permian. Although the ages and durations of the main major episodes of the LPIA have been calibrated from glacial deposits in eastern Australia and elsewhere, the causal factors for the final transition from the oscillating icehouse climate to a continuous
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Insight into the continental lithosphere using 3D geophysical and petrological modelling: An example from the Novohrad-Gemer region (Pannonian Basin, Slovakia-Hungary) Glob. Planet. Change (IF 4.0) Pub Date : 2025-02-05 Jaroslava Pánisová, Miroslav Bielik, Monika Huraiová, Dominika Godová, Vladimír Bezák, Patrik Konečný, Vratislav Hurai
Percolation of fluids and melts in the crust and the lithospheric mantle produces alteration zones with significantly disturbed physical properties, such as electrical resistivity and seismic velocity. The geophysical signatures of a metasomatized mantle include gravity responses as well because the modified modal and chemical compositions result in density changes. Here, we show how the local anomalous
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Testing Bergmann's rule in marine invertebrates: Using global brachiopod data during the Permian glacial-interglacial transition Glob. Planet. Change (IF 4.0) Pub Date : 2025-02-05 Xiujuan Wu, Thomas L. Stubbs, Huiting Wu, Yang Zhang, Anfeng Chen, Hongsong Guo, Fanshuai Meng
Bergmann's rule states that organisms tend to be larger in cold higher latitudinal areas and smaller in warmer lower latitudes, and that this latitudinal gradient of body-size becomes steeper during colder time intervals. Originally formulated for warm-blooded animals, this theory has also been applied to ectotherms. However, few studies have been conducted to examine latitudinal patterns of marine
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Response of carbonate rock weathering carbon sink to seismic peak ground acceleration in China Glob. Planet. Change (IF 4.0) Pub Date : 2025-02-01 Minghui Li, Qiu Tan, Guangjie Luo, Chaojun Li, Chen Ran, Sirui Zhang, Lian Xiong, Jingjing Liao, Chaochao Du, Zilin Li, Yingying Xue, Mingkang Long, Qing Luo, Xiaoqian Shen, Shu Yang, Xiaoyun Zhang, Yuanhuan Xie, Xiaoyong Bai
Seismic peak ground acceleration (PGA) is a key indicator to characterize the strength of seismic effects, which affects the rate of chemical weathering of carbonate rocks and the ability to capture CO2. However, the response mechanism and process of Carbonate rock weathering Carbon Sink (CCS) to PGA are not clear. To this end, this paper clarifies the spatial and temporal patterns of CCS in China
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Changes in surface conditions and associated hypoxia since the late Marine Isotope Stage 3, eastern Arabian Sea Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-31 Jeet Majumder, Anil K. Gupta, Prasanta Sanyal, Rudra Narayan Mohanty
This study presents multiproxy record of benthic foraminiferal assemblages, relative abundances of planktic foraminifer Globigerina bulloides, stable isotope ratios in benthic foraminifer Uvigerina peregrina, and signature of pyritization from Core SK291/GC17, located at a water depth of 182 m in the eastern Arabian Sea (EAS). The sediment core covers an age from ∼40,000 to 3500 calibrated years before
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Significant contribution of groundwater to the basalt weathering flux in an inactive volcanic field: Evidence from radiogenic uranium isotope Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-29 Laifeng Li, Shenghui Ouyang, Gen K. Li, David William Hedding
Chemical weathering of basalt plays a vital role in the long-term carbon cycle and Earth's habitability. Quantifying the magnitude and controlling factors of basalt weathering requires assessing the contribution to weathering solutes from groundwater, which has remained challenging. In this work, we apply radiogenic uranium isotope activity ratios (234U/238U) to trace groundwater input to riverine
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Size-fractionated C:N:P:Si stoichiometry of particulate matter in the subtropical Western North Pacific Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-28 Chaoyong Wang, Kan Zhang, Zhimian Cao, Kuanbo Zhou, Zhongwei Yuan, Junhui Chen, Yifan Ma, Bei Zhou, Xin Liu, Yihua Cai, Dalin Shi, Minhan Dai
Particulate C:N:P:Si ratios and their variations in the upper ocean are crucial for understanding carbon export and its coupling with nutrient dynamics and phytoplankton community composition associated with nutrient limitation. Here, we present the first dataset of size-fractionated biogenic particle concentrations and their elemental ratios, including particulate organic carbon (POC), particulate
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Evolutionary history of the Malacca Strait driven by sea level changes over the last 16 ka Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-28 Lina Ai, Shengfa Liu, Hui Zhang, Peng Cao, Xiao Wu, Lianhua He, Wenjing Qi, Kaikai Wu, Che Abd Rahim Mohamed, Houjie Wang, Xuefa Shi
The Malacca Strait connects the Sunda Shelf and Andaman Sea, which is a chokepoint for the exchange of both material and energy between two larger bodies of water. However, the evolutionary history of the Malacca Strait is poorly understood, although its development can be closely linked to regional paleoenvironmental changes. In this study, we present multiple new analytical results on the basis of
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Reduction in sediment yields from karst terrain in SW China over the past 600+ years Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-27 Yunqi Zhang, Bangrun Guo, Wei Li, Lan Tang, Xinxin Zhang, Yi Long, Xinbao Zhang, Bo Tan, Ziteng Luo, Xun Hu, Yong Wang
Previous studies have examined sediment yields and erosion in karst settings over recent decades, with little consideration of the evolution of rocky desertification over longer timescales. Here we reconstruct sediment yields from karst terrain in SW China over the past 600+ years by dating sediment deposition in a representative karst depression, and assess the contribution of historical sediment
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Resistant degradation of petrogenic organic carbon in the weathering of calcareous rocks Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-25 Huiyuan Yang, Jian Ma, Songfan He, Jin Wang, Yongge Sun, Xingqian Cui
Weathering of rock-derived organic carbon (OC) is an important source of atmospheric CO2 in the global carbon cycle, contributing to the long-term regulation of climates. Despite numerous investigations on clastic rocks, weathering behaviors of OC in calcareous rocks remain poorly constrained due to their conventional recognition of organic-lean features. Here, we analyzed bulk OC and biomarkers along
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High- vs. low-rate of sea level change fluvial floods: Past analogues for future forecast Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-23 Juan I. Santisteban, Rosa Mediavilla, Cristina Val-Peón, José Antonio López-Sáez, Klaus Reicherter
Projections based on the Intergovernmental Panel on Climate Change scenarios predict a clear rise of the sea level in the near future, together with a decrease in frequency and magnitude of fluvial floods, which are one of the main sources of sediments for some coasts, as response to a decrease in rainfall.
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Alternative mechanism of the Indian summer monsoon formation Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-22 Xiangying Xi, Xixi Zhou, Xiaohui Liu, Youjia Zou
The Indian summer monsoon is characterized by exceptionally intense cross-equatorial southwest winds, with its underlying mechanism vigorously debated. From the perspective of the general circulation, changes in regional atmospheric circulation are also ambiguous. Here, we present our latest research results, which show that the Hadley cells over the Indian Ocean change from two cells in boreal winter
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Obtaining refined Euro-Mediterranean rainfall projections through regional assessment of CMIP6 General Circulation Models Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-22 Giovanni-Breogán Ferreiro-Lera, Ángel Penas, Sara del Río
Despite the European Mediterranean Region (Euro-Med) being highly vulnerable to climate change the evaluation of General Circulation Models (GCMs) is limited in this region. This research aims to enhance Euro-Med rainfall projections by employing an optimized spatial assessment of 34 CMIP6 GCMs. Firstly, GCMs were interpolated to a common 0.1° grid, matching ERA Land, the reference dataset. Empirical
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Urbanization influence on changes of extreme precipitation in mainland China Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-22 Lingyun Wu, Aizhong Ye, Yunfei Wang, Qiaoqiao Li, Shengsheng Zhan
Extreme precipitation events have caused obvious damage to human environments and socioeconomic systems. However, the changes in extreme precipitation and their underlying causes remain unclear. This study analyzed daily precipitation data from 2254 meteorological stations across China from 1981 to 2018, focusing on two key extreme precipitation indicators: Max 1-day precipitation amount (Rx1day) and
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Spatiotemporal variation of dissolved rare earth elements in the North Pacific Subtropical Gyre: Influence of biogeochemical cycling and application in tracing deep water Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-21 Axiang Cao, Qian Liu, Jing Zhang, Zhensong Liu, Jingling Ren, Yihua Cai, Kuanbo Zhou, Xianghui Guo, Xin Liu
The North Pacific Subtropical Gyre (NPSG), the largest continuous marine ecosystem, significantly influences the cycling of trace elements through biological and seawater interface processes. Understanding these processes, particularly their seasonal impacts, is crucial for tracing oceanic dynamics, yet remains underexplored. In this context, rare earth elements (REEs) in seawater serve as valuable
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Permian thermal pulse event in Southwestern China and its resource and environment effects Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-21 Qianqian Feng, Nansheng Qiu, Xiaodong Fu, Tenger Borjigin, Qingyong Luo, Chuanqing Zhu
The Emeishan large igneous province (LIP) in Southwestern China and Northern Vietnam is thought to have been a potential driver for the biotic crises and paleoclimatic changes at the Guadalupian-Lopingian boundary (GLB; Permian). Here, we revealed the thermal pulse event induced by the Emeishan LIP and its impact on the fossil energy formation and episodic carbon changes. Southwestern China experienced
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Sudden appearance of katabatic wind in Central-Eastern Europe driven by Scandinavian Ice Sheet dynamics as recorded in Polish loess Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-21 Jerzy Nawrocki, Przemysław Mroczek, Maria Łanczont, Karol Standzikowski
This study investigates atmospheric circulation changes in Central-Eastern Europe during the Last Glacial Maximum (LGM), with a particular focus on the anisotropy of magnetic susceptibility (AMS) of loess deposits from the Jarosław section in Southeastern Poland. The subject of the study was the sequence of L1LL1 loess, which reaches a depth of approximately 7.5 m. This research integrates new AMS
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Impact of upstream westerly jet stream on tropospheric dust over the Tibetan Plateau in boreal spring Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-19 Xingya Feng, Rui Mao, Dao-Yi Gong, Cuicui Shi, Guangjian Wu
Upstream westerly jet stream including the Middle East jet stream (MEJS) and the polar front jet stream (PFJS) play important roles in influencing tropospheric dust over the Tibetan Plateau (TP). However, few studies have clarified their combined effects on variation in tropospheric dust over the TP. This study analyzed the relationship between upstream westerly jet stream and dust over the TP from
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Coral-derived seasonal seawater δ18O records from the Northern South China Sea: Hydroclimatic insights into the Medieval Climate Anomaly and Little Ice Age Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-18 Huimin Guo, Xuefei Chen, Yangrui Guo, Jian-xin Zhao, Gangjian Wei, Wenfeng Deng
Seawater oxygen isotopes (δ18Osw) are critical for reconstructing past climate and hydrological conditions, yet high-resolution δ18Osw reconstructions during the Medieval Climate Anomaly (MCA) and the Little Ice Age (LIA) remain scarce. Using paired monthly coral Sr/Ca-δ18O records from Hainan Island in the northern South China Sea (NSCS), we reconstructed wet and dry season δ18Osw for these periods
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Gallium behavior and isotopic compositions in marine siliceous sediments from the southern Mariana Trench Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-18 Guohong Qin, Zixiao Guo, Qingying Du, Yadong Liu, Lanping Feng, Xi Chen, Shahab Varkouhi, Daiyong Cao, Xiaotong Peng
To further constrain the contribution of marine siliceous sediments in the subduction zones to the oceanic gallium (Ga) cycle, we investigated Ga geochemical behavior by examining the mineral, elemental and Ga isotopic compositions of siliceous sediments from the southern Mariana Trench (SMT). The results show that Ga contents vary from 15.6 to 17.6 μg/g (average = 16.7 μg/g) in the lower part of the
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Paleo-data is policy relevant: How do we better incorporate it in policy and decision making? Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-17 K.J. Allen, C. Gouramanis, D. Sauchyn
The relatively recent acceleration of human activities that adversely impact Earth's systems has led to an increasingly urgent impetus to understand, mitigate, and adapt to these impacts. However, comprehension of natural systems, and fluctuations in their state, requires long-term data to capture the magnitude and direction of changes in these systems over very long time frames (decades to millennia)
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Sea surface water isotope changes recorded by alkenone δ2H from the northern South China Sea over the last 260 kyrs Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-17 Juan He, Alex L. Sessions, Li Li, Guodong Jia
The stable hydrogen isotope compositions of long-chain unsaturated C37 alkenones (δ2HC37) in sediments were measured to estimate palaeohydrological changes over the last 260 kyrs in the northern South China Sea (SCS). Values of δ2HC37 ranged from −212‰ to −166‰, with a value of −212‰ in the surface sediment. The residual δ2H value was estimated by subtracting the global ice volume effect from the hydrogen
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Population migration with improved productivity caused a heterogeneity pattern of Holocene vegetation succession in typical areas of the lower Yangtze region Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-16 Li Xiao, Xiaoyu Zhang, Jinqi Dai, Xueming Li, Ning Zhao, Shihao Liu, Jing Chen, Maotian Li, Yuanhao Sun, Haoyan Wang, Kai Li, Yan Liu, Qianli Sun
Climate fluctuations and human activities shaped vegetation dynamics during the Holocene, yet the underlying mechanisms remain elusive. Our investigation utilizes the MAT-REVEALS approach to analyze 17 fossil pollen records spanning the past 8500 years collected at three typical areas of the lower Yangtze: South Zhejiang Mountains (SZJM), Taihu Basin (THB), and Yaojiang Valley (YJV). The reconstructed
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Major heterogeneity in evaporitic depositional systems: The genesis of kilometre-scale gypsum networks in the Zechstein Basin Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-15 Jimmy Moneron
Evaporite sequences typically exhibit uniform thickness and facies distribution during accumulation on a flat seafloor, facilitating stratigraphic regional correlation across vast distances. Understanding the evolution and variability of these authigenic formations is essential to addressing a range of geoenergy, geostorage, and geohazard challenges, making them a key focus of modern geoscience research
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Flood occurrences and characteristics in Poland (Central Europe) in the last millennium Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-13 Babak Ghazi, Rajmund Przybylak, Piotr Oliński, Aleksandra Pospieszyńska
In the current era of global climate change, extreme events such as flood exposure are increasing globally. Knowledge about floods during historical periods is limited worldwide, mainly due to gaps in the documentary evidence and the lack of a reliable, comprehensive database. A new comprehensive database of floods in Poland in the 11th–18th centuries was created using quality-controlled documentary
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Using seasonal palaeo-flow reconstructions and artificial neural networks for daily water balance modelling: A case study from Tasmania, Australia Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-13 Danielle C. Verdon-Kidd, Kathryn J. Allen, Luke J. Kidd, Carolyn Maxwell, Mark Willis, Patrick Baker
Robust hydroclimate risk assessment requires a thorough understanding of past climate variability, which can be achieved by supplementing short instrumental hydroclimate records with palaeoclimate data. However, long-term continuous simulation of catchments and storage modelling, essential for hydrological risk assessment, necessitates monthly or daily time series input data, while palaeoclimate records
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Enhanced human activities have disturbed the vegetation-climate relationship over the last millennium in the Changbai Mountains, north-east China Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-09 Lina Song, Dongmei Jie, Feng Xie, Guizai Gao, Xianyong Cao
Understanding long-term regional anthropogenic impacts on vegetation can enhance our knowledge of natural environmental development. In this study, a 140-cm-long peat core covering the last ∼2850 years collected from the Changbai Mountain range was analysed for pollen and charcoal, to reconstruct vegetation and fire history, and to investigate the intensity and effects of human activities. Results
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Westerlies migrations and volcanic records over the past 4000 years from the Azores lacustrine sequences. Exploring correlations and impacts on Western Europe Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-08 Alberto Sáez, Armand Hernández, Adriano Pimentel, Mariana Andrade, Roberto Bao, Pedro M. Raposeiro, Vitor Gonçalves, Mario Benavente, Sergi Pla-Rabes, Ricardo Ramalho, Santiago Giralt
The Azores region plays a crucial role as a pathway for precipitation fronts traversing the North Atlantic from west to east, driven by the prevailing westerly winds. Variations in the strength of the Azores High affect the dynamics of the North Atlantic Oscillation (NAO), leading to latitudinal shifts in the trajectory of the westerlies and jet stream current over time.
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Testing and improving brGMGTs-based paleotemperature estimates in peat sediments: Evidence from global surface peat samples and two well-dated Holocene peat cores in far Northwest China Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-07 Zhongwei Shen, Minghua Zhao, Tianyan Lin, Xiaoxu Qu, Haichun Guo, Jiantao Cao, Guodong Jia, Zhiguo Rao
BrGMGTs (branched glycerol monoalkyl glycerol tetraethers) are proposed as potential proxies for temperature estimation due to their constrained and consistent biological origin. However, discrepancies observed between brGMGTs-based proxies and MAAT (mean annual air temperature) have raised concerns about their applicability. Here, we analyzed surface samples from three peatlands across China, and
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Magnetic evidence of redox transition event in the Okinawa Trough during the early-middle Holocene and its links to the Kuroshio Current evolution Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-07 Feng Wang, Tuqin Huang, Zhongbo Wang, Weiguo Zhang, Pengyu Qiao, Haiyan Tang, Xi Mei, Ping Yin, Zhongping Lai
The Kuroshio Current significantly influences the physical, chemical, and biological properties in the western Pacific Ocean, while its strength and path in the Okinawa Trough during the Holocene remains unclear. Previous studies have not established consistent conclusions due to the multiple explanations for sediment provenance proxies, but these inconsistencies can potentially be addressed by identifying
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Impact of the 1994–1997 temporary decrease in Northern Hemisphere stratospheric methane on the 1990s methane trend Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-05 Yuanyuan Han, Shentao Li, Xinlong Tan, Wenyan Guo, Wuhu Feng, Xin Li, Feiyang Wang, Fei Xie
Methane (CH4) ranks as the second most significant anthropogenic greenhouse gas following carbon dioxide (CO2). It originates from a wide range of surface sources and subsequently enters the stratosphere through the tropical tropopause. In line with the observed positive trend in tropospheric CH4, stratospheric CH4 has shown an overall increase in the long-term trend. However, contrary to the continuous
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Glacial-interglacial changes in Antarctic Intermediate Water advection in the Southeast Pacific during the last 787 kyr Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-04 Karol O. Duarte, Igor M. Venancio, Rodrigo A. Nascimento, Ana Luiza S. Albuquerque, Thiago P. Santos, Stefano Crivellari, Cristiano M. Chiessi, IODP Expedition 383 Shipboard Scientists
Southern-sourced intermediate waters play a central role in global ocean oxygenation and nutrient transport to low latitudes. However, the glacial-interglacial variability in their formation rate and geometry are not well constrained. Here we present a new ca. 787 thousand years-long benthic foraminifera stable carbon isotopic record from the Southeast Pacific, near the main formation region of Antarctic
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Enhanced biological pump and carbonate pump synergy: The primary pathway for phosphorus clearance in the century-long dynamics of a karst lake Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-04 Haibo He, Zaihua Liu, Jingan Chen, Dongli Li, Yuyouting Wang, Yongqiang Han, Xing Liu, Hailong Sun, Quan Chen, Wenfang Cao
Lakes exhibit a biological pump (BP) effect, akin to marine systems, acting as a carbon sequestration mechanism. In karst lakes, the BP works in synergy with a more efficient carbonate pump (CP), enhancing phosphorus (P) removal. This synergy provides a plausible explanation for the observed P enrichment in karst lake sediments. It is hypothesized that an enhanced BP effect drives the CP, accelerating
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Centennial to multidecadal scales variability of East Asian summer monsoon precipitation in North China during the Holocene Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-04 Dandan Wang, Qinghai Xu, Yuanhao Sun, Shengrui Zhang
Understanding the variability and forcing mechanisms of the East Asian summer monsoon (EASM) precipitation on different timescales is critically important given its potentially adverse influence on ecosystems and economic development in North China. We present a pollen-based, well-dated, ∼10 yr resolution quantitative precipitation reconstruction from an alpine lake in North China, which provides a
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Half-day (daytime and nighttime) precipitation extremes in China: Changes and attribution from 1981 to 2022 Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-03 Jiahao Han, Shibo Fang, Xiaomao Lin, Zhanhao Zhang, Man Li, Yanru Yu, Wen Zhuo, Xinyu Wang
Increased atmospheric water vapor pressure due to the warming climate has led to more frequent and extreme precipitation events, which has resulted in incalculable losses. The hydrothermal circulation suggests that extreme daytime and nighttime precipitation patterns can have many distinct consequences,ranging from changes in various scale hydrological cycles to social security concerns. However, the
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Editorial preface to special issue: Earth-evolution at the Dry Limit Glob. Planet. Change (IF 4.0) Pub Date : 2025-01-02 Tony Reimann, Christine Heim, Dietmar Quandt, Tibor J. Dunai, Martin Melles, Benedikt Ritter
The availability of water influences the evolution of life as well as the evolution of the Earth's land surface. Until recently, role of geomorphological and biological (geo-bio) processes including their interactions and inferred co-evolution have been poorly understood for extremely water-limited (hyper-arid) environments. This emerging field lies at the nexus of weathering, soil (crust) formation
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Enhanced aridity in the interior of Asia after the Middle Miocene Climatic Optimum driven by global cooling Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-30 Jimin Sun, Weiguo Liu, Brian F. Windley, Longxiao Xu, Tongyan Lü
The Junggar Basin, located in mid-latitude Central Asia, is an inland basin that is one of the remotest area from any open seas on Earth. Knowledge about the paleoclimatic change and the relevant driving factors in this specific geographical region is critically important for understanding the Cenozoic aridification processes in the Asian hinterland. In this study, we focused on Miocene strata in the
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Influence of the circumglobal teleconnection on the following ENSO: From the perspective of the freezing level height over the Tibetan Plateau Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-29 Wei Shang, Keqin Duan, Wei Yu, Li Xing, Peihong Shi
The freezing level height (FLH) reflects the thermal conditions in the troposphere and implies cryospheric changes on the Tibetan Plateau (TP). This study aims to understand whether variations in the FLH over the TP are linked to midlatitude and tropical signals, which is currently unknown. An empirical orthogonal function analysis is utilized to investigate the east-west dipole pattern of the summer
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Impact of El Niño onset timing on Indian Monsoon Rainfall patterns Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-29 Reema Kasera, Vijay K. Minocha
The adverse impact of El Niño on Indian summer monsoon rainfall (ISMR) is well established, with documented physical mechanisms linking different flavors of El Niño and ISMR. However, few studies have discussed the pathways that connect different onsets of El Niño and ISMR. The present study identifies the two ENSO categories (spring and summer) depending on the occurrence time of positive sea surface
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About 868 cal. yr BP tsunami event at the northern South China Sea revealed from offshore sediments Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-26 Yuming Wang, Xiaohong Chen, Adam D. Switzer, Linlin Li, Yang Xu, Yukun Wang, Elaine Tan, Peizhen Zhang
The northern coast of the South China Sea (SCS) is a densely populated and economically important area. Despite the absence of any tsunamigenic events in the last century in this region, their occurrence on a much longer timescale remains largely unknown. Given the catastrophic consequences a potential tsunami event could bring, we aim to bridge this research gap by conducting high-resolution sedimentological
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The origin of ferruginous concretions on the Sunda Shelf (SE Asia) and its environmental implications Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-24 Kaikai Wu, Xuefa Shi, Shengfa Liu, Franck Bassinot, Christophe Colin, Hui Zhang, Che Abd. Rahim Mohamed
Marine concretions are an important source of information regarding resources, climate, and environment. However, the genesis of ferruginous concretions on the continental shelf remains unclear. In this study, we present the radiocarbon ages (AMS14C), elemental compositions, and mineral compositions of ferruginous concretions obtained from a gravity core on the central Sunda Shelf. The results indicate
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Marine productivity controlled by oceanic circulation in the Northwest Pacific over the last glacial cycle Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-23 Limin Hu, Hao Fang, Xuefa Shi, Yuying Zhang, Zhifei Duan, Chao Li, Jörg Lippold, Minoru Ikehara, Yiming Luo
The oceanic carbon cycles have a significant effect on the climate transitions by influencing the atmospheric CO2 levels. As one of the largest carbon sinks, the Northwest Pacific is the key to understand how the carbon cycles react to past and future climate changes. In this study, the marine productivity in Northwest Pacific over the last 25,000 years has been comprehensively reconstructed using
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The Rowley Shoals atolls: Remnants of a Miocene great barrier reef on the north-west Australian margin Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-22 Jackson C. McCaffrey, Stephen J. Gallagher, Malcolm W. Wallace, Tanita Averes, Stanislaus G. Fabian, Katja Lindhorst, Lars Reuning, Sebastian Krastel
The tropical North West Shelf of Australia hosts a diverse range of modern reefs. Six shelf edge isolated atolls are present north of 18°S including: Ashmore Reef, Scott Reef and Seringapatam Reef, and three Rowley Shoals. The Ningaloo Reef is a fringing reef around the North West Cape at 22°S. All of these reefs are the remnants of a vast 2000 km long barrier reef that drowned during the Late Miocene
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From holocene to anthropogenic impact: Surpassing coral's pH up-regulation capacity under ocean acidification Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-20 Huiling Kang, Xuefei Chen, Guangchao Deng, Jian-xin Zhao, Gangjian Wei
Corals' regulation of internal calcifying fluid (CF or cf) chemistry is crucial for their extraordinary calcification capacity, endowing them with a certain ability to cope with environmental changes such as anthropogenic ocean acidification (OA) and warming. However, it remains unclear whether the impacts of these changes on corals have substantially surpassed their regulation capacity, particularly
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Alternating dominance of Westerlies and East Asian winter monsoon on dust activities across the northeastern Qinghai-Tibet Plateau since 18.5 ka Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-20 Hao Long, Yun Cai, Jingran Zhang, Liangqing Cheng, Linhai Yang, Hongyi Cheng
The mid-latitude Westerlies and the East Asian winter monsoon (EAWM) are two major atmospheric circulation systems influencing dust activities in the Northern Hemisphere (NH). However, the interplay between these wind systems and their effects on regional dust activities remain poorly understood. In this study, we present a well-dated aeolian sedimentary sequence from the loess section (ZES) on the
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The presence of the Tibetan Plateau lowers atmospheric CO2 levels via the Atlantic-Pacific carbon seesaw Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-18 Jinlong Du, Jun Tian, Aixue Hu, Yongqiang Yu, Baohuang Su, Dabang Jiang
The presence of the Tibetan Plateau is believed to lower pCO2atm by stimulating weathering carbon sink, during which the global ocean is considered a passive carbon reservoir despite the tremendous marine carbon inventory. Yet, recent studies reveal that the orographic forcing of the Tibetan Plateau could lead to drastic changes in ocean circulation, which would substantially affect basin-scale carbon
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Nitrogen cycling and marine redox evolution during the Ediacaran–Cambrian transition Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-18 Chao Chang, Thomas J. Algeo
The Cambrian Explosion was an unprecedented bioevolutionary event that witnessed rapid diversification of marine invertebrate phyla and establishment of metazoan-dominated marine ecosystems. Nitrogen is a critical nutrient element essential for all life on Earth, and its biogeochemical cycling in the ocean is tightly associated with marine redox conditions. Numerous nitrogen isotope investigations
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Combined impacts of land change and climate variability on ecosystem net primary productivity in arid regions Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-16 Emeka Edwin Igboeli, Ogbue Chukwuka, Friday Uchenna Ochege, Chukwuemeka Anthony Onyekwelu, Qing Ling, Chukwuedozie Ajaero, Rafiq Hamdi, Mijanur Rahman, Alphonse Kayiranga, Geping Luo
Net Primary Productivity (NPP) is an index for assessing ecosystem services and productivity on land. However, previous studies focused solely on NPP changes across ecological regions, overlooking the comparative advantage of the impacts of land changes and climatic variations on various forms of NPP as indicators of ecosystem degradation and restoration across different eco-political milieux. This
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Evolution of the Asian summer monsoon during the Heinrich events 1–6 Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-16 Yan-Xia Xue, Yao Wu, Chao-Jun Chen, Jun-Yun Li, Hai Cheng, Chuan-Chou Shen, Jian Zhang, Ting-Yong Li
There are still a series of controversies about the variation patterns and spatial differences of the Asian summer monsoon (ASM) during the Heinrich Stadials (HSs). Using stalagmite δ18O records from Yangkou Cave, Southwest China, this study revealed the climate dynamics of 6 weak ASM events corresponding to Heinrich events since the last glacial period. During the Asian Heinrich Stadial (AHS) 1–6
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Regulation and response of heterotrophic bacterial production to environmental changes in marginal seas of the Western Pacific Ocean Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-13 Qiao Liu, Jinyan Wang, Xiao-Jun Li, Ni Meng, Gui-Peng Yang, Guiling Zhang, Guang-Chao Zhuang
Heterotrophic bacterial production represents an important part of microbial food web processes in marine ecosystems and plays a significant role in biogeochemical carbon cycle. As environmental factors have changed in marginal seas of the Western Pacific Ocean over the past 20 years, the response and regulation of bacterial production remain poorly understood. In this study, we quantified bacterial
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Temporal and spatial changes of glacial lakes in the central Himalayas and their response to climate change based on multi-source remote sensing data Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-13 Xiaoqiang Cheng, Donghui Shangguan, Chengsheng Yang, Wangping Li, Zhaoye Zhou, Xiaojie Liu, Da Li, Xiuxia Zhang, Huilan Ding, Zewei Liu, Yi Yu, Xiaoxian Wang, Beibei He, Qin Yang, Yaojun Li, Rongjun Wang, Yadong Liu, Lingzhi Deng, Yanzi Shi
Global warming has significantly accelerated the retreat of glaciers and expansion of glacial lakes in the central Himalayas, thereby heightening the risks of various disasters, including ice avalanches, rock avalanches, and glacial lake outburst floods (GLOFs). These events pose considerable threats to the lives and properties of individuals residing in downstream areas. Consequently, conducting comprehensive
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Astronomically forced dynamics of Late Devonian (Famennian) sea level and biotic recovery in western Junggar, Northwest China Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-11 Kunyuan Ma, Linda Hinnov, Zhihong Wang, Kai Wang, Ruiwen Zong, Xinsong Zhang, Junjun Song, Yang Bai, Yiming Gong
The Hongguleleng Formation in western Junggar, northwest China preserves a rich variety of fossils and was previously regarded as a “refugium” during the Late Devonian biotic crisis. Uncertainty in the age of the Hongguleleng Formation has persisted for a considerable time. In this study, cyclostratigraphic analysis was carried out on the Upper Devonian Bulongguoer and Wulankeshun sections from western
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U-series isotope constraints on the rates of aeolian-impacted basaltic weathering under tropical climate Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-09 Guodong Ming, Jingyi Huang, Jiaru Sheng, Yingzeng Gong, Jiye Guo, Huimin Yu, Wenhan Cheng, Craig C. Lundstrom, Fang Huang
The chemical weathering of basalt rocks is crucial for stabilizing Earth's habitability and carbon cycle. Currently, the soil chemistry and weathering rates of basalt under significant aeolian influence are not fully understood. This study addresses this gap by investigating the U geochemistry and regolith production rates in a highly weathered basalt profile in Southern China. The εNd(0) values decrease
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Pacific Walker Circulation modulated millennial-scale East Asian summer monsoon rainfall variability over the past 40 kyr Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-09 Yi Zhong, Yuxing Liu, Xiaojing Du, Xiaoxu Shi, Xing Xu, Zhengyao Lu, Stefanie Kaboth-Bahr, Mark J. Dekkers, Juan C. Larrasoaña, Keiji Horikawa, Chijun Sun, Liang Ning, André Bahr, Yanan Zhang, Debo Zhao, Jiabo Liu, Wenyue Xia, Jingyu Zhang, Sheng Yang, Hai Li, Xiaoyue Liang, Chenxi Hong, Zhengyang Dai, Yuanjie Li, Qingsong Liu
The millennial-scale hydroclimate variability in East Asia has been debated for a long time due to the lack of reliable precipitation records from southern China and inconsistent model simulations. Here, we reconstruct a 40-kyr rainfall record for southern China and Taiwan based on enviro-magnetic and clay mineral proxy parameters from a northern South China Sea marine sediment core. Both proxies suggest
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Late Miocene-early Pliocene hydroclimate evolution of the western Altiplano, northern Chile: Implications for aridification trends under warming climate conditions Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-09 Carlie Mentzer, Carmala Garzione, Carlos Jaramillo, Luis Felipe Hinojosa, Jaime Escobar, Nataly Glade, Sebastian Gomez, Deepshikha Upadhyay, Aradhna Tripati, Kaustubh Thirumalai
The Miocene-Pliocene boundary (∼5.3 million years ago, Ma) represents a climate transition, where global warming resulted in a rise in sea surface temperatures from near modern values in the late Miocene, to sustained, warmer than modern values in the early Pliocene. Estimated atmospheric CO2 concentrations were within the range of anthropogenic values. Thus, this transition provides an opportunity
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Triggering of a 2500-year coral shutdown in northern South China Sea by coupled East Asian Monsoon and El Niño–Southern Oscillation Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-09 Fei Tan, Yunfeng Zhang, Guowei Fu, Qi Shi, Xiyang Zhang, Shengnan Zhou, Mingzhuang Wang, Guotao Zhang, Xiaoju Liu, Jian-xin Zhao, Hongqiang Yang
Rapid climate change is reshaping the ecological dynamics of coral reefs, posing significant challenges in understanding the long-term effects of environmental disturbances on reef development. In the current study, we conducted a chronological analysis and regional review of Holocene massive Porites corals in the northern South China Sea, revealing a unique episodic growth pattern, including a 2500-year
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Sedimentary responses to climatic variations and Kuroshio intrusion into the northern South China Sea since the last deglaciation Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-08 Chao Huang, Liyuan Wu, Jiansen Cheng, Xiaoxu Qu, Yongyi Luo, Huiling Zhang, Feng Ye, Gangjian Wei
The terrigenous sediment source-to-sink processes in marginal seas are governed by intricate interactions among climate, sea level, and ocean currents. The continental slope of the northern South China Sea (SCS) provides an excellent setting to examine these processes due to its substantial terrigenous influx and continuous sedimentation. In this study, we present a high-resolution sedimentary record
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Magnetic susceptibility cyclostratigraphy of the lower Schwarzrand Subgroup in southern Namibia refines temporal calibration of late Ediacaran bilaterian radiation Glob. Planet. Change (IF 4.0) Pub Date : 2024-12-06 Zheng Gong, Iona Baillie, Lyle L. Nelson, Stacey H. Gerasimov, Catherine Rose, Emily F. Smith
The Nama Group in southern Namibia captures one of the best-preserved records of the last ∼10 million years of the Ediacaran Period, recording pivotal changes to Earth's biosphere and oceans. Within the Nama Group, the lower Schwarzrand Subgroup preserves early complex bilaterian trace fossils, but uncertainties surrounding the ages of their first occurrences hinder global correlation and the understanding