Global and Planetary Change最新文献

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Paleoclimate evolution of the Middle Triassic Guanling Formation from South China and its significance for the preservation of the Luoping biota 华南中三叠世关岭地层的古气候演化及其对罗平生物群保存的意义
IF 4 1区 地球科学
Global and Planetary Change Pub Date : 2024-09-16 DOI: 10.1016/j.gloplacha.2024.104588
Zhongzhao Ding , Zhixin Ma , Shixue Hu , Shuang Dai , Qiyue Zhang , Xiao Min , Jinyuan Huang , Wen Wen , Changyong Zhou , Xinnan Fang , Tianqi Ji , Lingfeng Qin
{"title":"Paleoclimate evolution of the Middle Triassic Guanling Formation from South China and its significance for the preservation of the Luoping biota","authors":"Zhongzhao Ding ,&nbsp;Zhixin Ma ,&nbsp;Shixue Hu ,&nbsp;Shuang Dai ,&nbsp;Qiyue Zhang ,&nbsp;Xiao Min ,&nbsp;Jinyuan Huang ,&nbsp;Wen Wen ,&nbsp;Changyong Zhou ,&nbsp;Xinnan Fang ,&nbsp;Tianqi Ji ,&nbsp;Lingfeng Qin","doi":"10.1016/j.gloplacha.2024.104588","DOIUrl":"10.1016/j.gloplacha.2024.104588","url":null,"abstract":"<div><div>The Middle Triassic is regarded as an important period of biotic recovery after the end-Permian mass extinction, of which the Middle Triassic Luoping biota represents a full recovery of marine ecosystem. However, the research on the relationship between biotic recovery and environmental evolution in the Middle Triassic remains poorly understood. To investigate this issue, microfacies analysis and multiple geochemical proxies (Al, Ti, Th, Sc, and ∑REY) of an Anisian (Middle Triassic) succession (the Member II of the Guanling Formation, Leniduo section, South China) yielding the Luoping biota are carried out. Five sedimentary facies are identified through field investigation and microfacies analysis: open platform, restricted platform, tidal flat, shoal and intra-platform depression. According to the changes of multiple geochemical proxies, this section can be divided into five stages. A sudden facies transition from open platform to intra-platform depression, and high contents of Al, Ti, Sc, Th, and ∑REY in stage IV indicate a rapid sea-level rise and detrital input increase, coinciding with the preservation of the Luoping biota. This evidence suggest that enhanced continental weathering caused by global warming, global sea level rise, and frequent regional volcanic activities promoted the death and preservation of the Luoping biota.</div></div>","PeriodicalId":55089,"journal":{"name":"Global and Planetary Change","volume":"242 ","pages":"Article 104588"},"PeriodicalIF":4.0,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142312068","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}
引用次数: 0
Orbital and suborbital climate cycles recorded in terrestrial strata from the late Paleocene-early Eocene in the Subei Basin, East China 中国东部苏北盆地晚古新世-早始新世陆相地层中记录的轨道和亚轨道气候周期
IF 4 1区 地球科学
Global and Planetary Change Pub Date : 2024-09-16 DOI: 10.1016/j.gloplacha.2024.104590
Juan Liu , Yanzhen Li , Liangcheng Tan , Rui Zhang , Xingxing Liu , Ze Zhang , Anguo Xiao , David B. Kemp , Chunju Huang
{"title":"Orbital and suborbital climate cycles recorded in terrestrial strata from the late Paleocene-early Eocene in the Subei Basin, East China","authors":"Juan Liu ,&nbsp;Yanzhen Li ,&nbsp;Liangcheng Tan ,&nbsp;Rui Zhang ,&nbsp;Xingxing Liu ,&nbsp;Ze Zhang ,&nbsp;Anguo Xiao ,&nbsp;David B. Kemp ,&nbsp;Chunju Huang","doi":"10.1016/j.gloplacha.2024.104590","DOIUrl":"10.1016/j.gloplacha.2024.104590","url":null,"abstract":"<div><p>Interannual-to millennial-scale climate cycles have been recognized in ancient sedimentary strata and may be closely associated with solar activity. However, the physical driving mechanisms of such cycles remain a mystery. To better understand the nature and evolution of suborbital cycles in ice-free conditions, we performed a quantitative analysis of high-resolution phosphorus (P), gray-scale values, and iron (Fe) data obtained from a core deposited in a mid-latitude lake (Funing Formation of the Subei Basin) during the Late Paleocene-Early Eocene. Time series analysis reveals evidence for ∼88-yr and ∼ 11-yr solar activity cycles in the gray value data, and ∼ 20-kyr precession cycles, ∼10-kyr half-precession cycles, and ∼ 2-kyr solar activity cycles in the Fe data. The data indicate that paleoclimate changes in the Subei Basin at this time were driven by both orbital and suborbital cycles. Amplitude modulation analysis suggests that ∼20-kyr precession modulated the amplitude of the observed 2-kyr cycles. It is inferred that the Earth's climate is driven not only by eccentricity-modulated precession cycle, but also by precession-modulated millennial cycles.</p></div>","PeriodicalId":55089,"journal":{"name":"Global and Planetary Change","volume":"242 ","pages":"Article 104590"},"PeriodicalIF":4.0,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142271850","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}
引用次数: 0
The expression of the MIS 12 glacial stage in Southeastern Europe and its impact over the Middle Pleistocene hominins in Megalopolis Basin (Greece) 东南欧 MIS 12 冰期的表现及其对希腊 Megalopolis 盆地中更新世人类的影响
IF 4 1区 地球科学
Global and Planetary Change Pub Date : 2024-09-15 DOI: 10.1016/j.gloplacha.2024.104585
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
{"title":"The expression of the MIS 12 glacial stage in Southeastern Europe and its impact over the Middle Pleistocene hominins in Megalopolis Basin (Greece)","authors":"Geanina A. Butiseacă ,&nbsp;Iuliana Vasiliev ,&nbsp;Marcel T.J. van der Meer ,&nbsp;Ines J.E. Bludau ,&nbsp;Panagiotis Karkanas ,&nbsp;Vangelis Tourloukis ,&nbsp;Annett Junginger ,&nbsp;Andreas Mulch ,&nbsp;Eleni Panagopoulou ,&nbsp;Katerina Harvati","doi":"10.1016/j.gloplacha.2024.104585","DOIUrl":"10.1016/j.gloplacha.2024.104585","url":null,"abstract":"<div><p>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 the palaeoenvironmental conditions at the time of hominin presence in this region, making these hypotheses difficult to test. Here we analyze biomarker data and leaf wax stable isotopic compositions of the MIS 12 Lower Palaeolithic site Marathousa 1 (Megalopolis Basin, Greece) to assess the climatic conditions accompanying the time of hominin presence in the area. Our data indicate a major cooling affecting the north Mediterranean/Aegean domain during this time interval, with lowest temperatures recorded between ∼440–432 ka. The glacial peak is associated with changes in vegetation (i.e., from more forested to more open landscape), reduction of humidity and water availability (i.e., moisture depletion, increased evaporation). Hominins are present at the Marathousa 1 location at the end of this interval (434–432 ka), confirming that the Megalopolis Basin served as a refugium for hunter-gatherer groups during periods of harsh climatic conditions. Additionally, the progressive cooling is associated with an important sedimentary hiatus between ∼465–440 ka reflected in all circum-Mediterranean records (both marine and continental), indicating a regional impact of the MIS 12 glaciation over surface processes.</p></div>","PeriodicalId":55089,"journal":{"name":"Global and Planetary Change","volume":"242 ","pages":"Article 104585"},"PeriodicalIF":4.0,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0921818124002327/pdfft?md5=e8c4c59b5bb228f7480759043185e0f5&pid=1-s2.0-S0921818124002327-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142238294","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}
引用次数: 0
Change of global land extreme temperature in the future 未来全球陆地极端温度的变化
IF 4 1区 地球科学
Global and Planetary Change Pub Date : 2024-09-13 DOI: 10.1016/j.gloplacha.2024.104583
Xinlong Zhang , Taosheng Huang , Weiping Wang , Ping Shen
{"title":"Change of global land extreme temperature in the future","authors":"Xinlong Zhang ,&nbsp;Taosheng Huang ,&nbsp;Weiping Wang ,&nbsp;Ping Shen","doi":"10.1016/j.gloplacha.2024.104583","DOIUrl":"10.1016/j.gloplacha.2024.104583","url":null,"abstract":"<div><p>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 dataset with bias adjustment and the Gradient Booster algorithm, we reduced the biases that existed in Global Climate Models. The model significantly reduces the root mean square errors (RMSEs) for both the daily maximum and daily minimum temperature extremes. A future scenario analysis revealed that global temperature extremes would substantially increase under high-emission scenarios, highlighting the urgency for stringent emission reduction commitments. This study also identified regions like Greenland, the Tibetan Plateau, and the regional Arctic Archipelago as potential hotspots of temperature extremes under these scenarios. The multi-model ensemble approach, tuned with machine learning and driven by high-resolution data, contributes to climate science by providing refined insights into future temperature extremes, thereby offering direction to climate change mitigation and adaptation strategies.</p></div>","PeriodicalId":55089,"journal":{"name":"Global and Planetary Change","volume":"242 ","pages":"Article 104583"},"PeriodicalIF":4.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142238655","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}
引用次数: 0
Re-Os geochronology and geochemical evolution of late Cambrian to Middle Ordovician Alum and Tøyen shales, Sweden 瑞典晚寒武世至中奥陶世Alum和Tøyen页岩的Re-Os地质年代和地球化学演化
IF 4 1区 地球科学
Global and Planetary Change Pub Date : 2024-09-13 DOI: 10.1016/j.gloplacha.2024.104580
Vineet Goswami , Judith L. Hannah , Holly J. Stein , Per Ahlberg , Jörg Maletz , Frans Lundberg , Jan Ove R. Ebbestad
{"title":"Re-Os geochronology and geochemical evolution of late Cambrian to Middle Ordovician Alum and Tøyen shales, Sweden","authors":"Vineet Goswami ,&nbsp;Judith L. Hannah ,&nbsp;Holly J. Stein ,&nbsp;Per Ahlberg ,&nbsp;Jörg Maletz ,&nbsp;Frans Lundberg ,&nbsp;Jan Ove R. Ebbestad","doi":"10.1016/j.gloplacha.2024.104580","DOIUrl":"10.1016/j.gloplacha.2024.104580","url":null,"abstract":"<div><div>The limited number of accurate and precise radiometric ages through the ∼100 Myr span of the Cambrian and Ordovician impedes reliable age determinations for stage boundaries in these periods. Here, we fill significant gaps in the early Paleozoic chronostratigraphy by providing precise Re-Os time-pins. Sample selection is linked to a firm biostratigraphic framework built on the appearance and distribution of trilobites, graptolites, and conodonts. A Furongian (upper Cambrian) Alum Shale section (Andrarum-3 drill core, Scania, Sweden) at the onset of the Steptoean Positive Carbon Isotopic Excursion (SPICE) yields highly non-isochronous Re-Os isotopic data from a section with wildly fluctuating δ<sup>13</sup>C<sub>org</sub>; however, selected data from a narrow sediment band with steady carbon isotope stratigraphy provides an imprecise Re-Os age of 497 ± 28 Ma (2σ; Model 3; <em>n</em> = 3), with an initial <sup>187</sup>Os/<sup>188</sup>Os ratio (Os<sub>i</sub>) of 0.74 ± 0.05. Organic-rich Alum Shale (Tomten-1 drill core, Västergötland, Sweden) from ∼120 cm below the Cambrian-Ordovician boundary yields a Model 1 age of 488.6 ± 5.1 Ma (2σ; MSWD = 1.5; <em>n</em> = 25) and an Os<sub>i</sub> of 0.82 ± 0.04 for Stage 10, uppermost Cambrian. Biostratigraphic data indicate the dated Alum Shale is from an interval slightly below the Top Of Cambrian Excursion (TOCE) and slightly above the First Appearance Datum (FAD) of the agnostoid <em>Lotagnostus americanus</em>. Organic-rich Tøyen Shale (Lerhamn drill core, Scania, Sweden) yields a precise Model 1 Re-Os age of 469.7 ± 1.4 Ma (2σ; MSWD = 1.0; <em>n</em> = 10) and Os<sub>i</sub> of 0.802 ± 0.002 for the maximum age of the Floian–Dapingian stage boundary (Lower–Middle Ordovician boundary). The Os isotopic composition of seawater from the latest Ediacaran through the Cambrian to Early-Middle Ordovician hovers around 0.8 but falls to 0.54 by early Silurian. This significant decrease in seawater <sup>187</sup>Os/<sup>188</sup>Os is consistent with reduced chemical weathering and cooler seawater temperatures through the Middle–Late Ordovician. Overall, Redox Sensitive Element (RSE; Re, Os, Mo, U) abundances correlate positively with Total Organic Carbon (TOC), suggesting efficient removal of these elements from an anoxic water column by organic matter. However, these relationships break down for high TOC (&gt;10%) shales depositing under euxinic conditions. The RSE-TOC relationship breakdown supports enhanced metal drawdown from the water column with local pyrite accumulation. Geochemical data suggest the deposition of Alum and Tøyen shales under hydrographically restricted settings with increased primary productivity along the Baltica's margin during the latest Cambrian to Early-Middle Ordovician.</div></div>","PeriodicalId":55089,"journal":{"name":"Global and Planetary Change","volume":"242 ","pages":"Article 104580"},"PeriodicalIF":4.0,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142357233","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}
引用次数: 0
Corrigendum to “The Ediacara Biota of the Wood Canyon formation: Latest Precambrian macrofossils and sedimentary structures from the southern Great Basin” [Global and Planetary Change (2024) 104547; 1–17] 伍德峡谷地层的埃迪卡拉生物群:来自大盆地南部的最新前寒武纪大型化石和沉积结构" [Global and Planetary Change (2024) 104547; 1-17] 的更正
IF 4 1区 地球科学
Global and Planetary Change Pub Date : 2024-09-12 DOI: 10.1016/j.gloplacha.2024.104581
Scott D. Evans , Emily F. Smith , Prescott Vayda , Lyle L. Nelson , Shuhai Xiao
{"title":"Corrigendum to “The Ediacara Biota of the Wood Canyon formation: Latest Precambrian macrofossils and sedimentary structures from the southern Great Basin” [Global and Planetary Change (2024) 104547; 1–17]","authors":"Scott D. Evans ,&nbsp;Emily F. Smith ,&nbsp;Prescott Vayda ,&nbsp;Lyle L. Nelson ,&nbsp;Shuhai Xiao","doi":"10.1016/j.gloplacha.2024.104581","DOIUrl":"10.1016/j.gloplacha.2024.104581","url":null,"abstract":"","PeriodicalId":55089,"journal":{"name":"Global and Planetary Change","volume":"242 ","pages":"Article 104581"},"PeriodicalIF":4.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142445848","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}
引用次数: 0
The future extent of the Anthropocene epoch: A synthesis 人类纪元的未来范围:综述
IF 4 1区 地球科学
Global and Planetary Change Pub Date : 2024-09-12 DOI: 10.1016/j.gloplacha.2024.104568
C.P. Summerhayes , J. Zalasiewicz , M.J. Head , J. Syvitski , A.D. Barnosky , A. Cearreta , B. Fiałkiewicz-Kozieł , J. Grinevald , R. Leinfelder , F.M.G. McCarthy , J.R. McNeill , Y. Saito , M. Wagreich , C.N. Waters , M. Williams , J. Zinke
{"title":"The future extent of the Anthropocene epoch: A synthesis","authors":"C.P. Summerhayes ,&nbsp;J. Zalasiewicz ,&nbsp;M.J. Head ,&nbsp;J. Syvitski ,&nbsp;A.D. Barnosky ,&nbsp;A. Cearreta ,&nbsp;B. Fiałkiewicz-Kozieł ,&nbsp;J. Grinevald ,&nbsp;R. Leinfelder ,&nbsp;F.M.G. McCarthy ,&nbsp;J.R. McNeill ,&nbsp;Y. Saito ,&nbsp;M. Wagreich ,&nbsp;C.N. Waters ,&nbsp;M. Williams ,&nbsp;J. Zinke","doi":"10.1016/j.gloplacha.2024.104568","DOIUrl":"10.1016/j.gloplacha.2024.104568","url":null,"abstract":"<div><div>We synthesize research from complementary scientific fields to address the likely future extent and duration of the proposed Anthropocene epoch. Intensification of human-forced climate change began from about 1970 onwards with steepening increases in greenhouse gases, ocean acidification, global temperature and sea level, along with ice loss. The resulting distinction between relatively stable Holocene climatic conditions and those of the proposed Anthropocene epoch is substantial, with many aspects irreversible. The still-rising trajectory of greenhouse gas emissions is leading to yet greater and more permanent divergence of the Anthropocene from the Holocene Earth System. We focus here on the effects of the ensuing climate transformation and its impact on the likely duration of this novel state of the Earth System.</div><div>Given the magnitude and rapid rise of atmospheric carbon dioxide (CO<sub>2</sub>), its long lifetime in the atmosphere, and the present disequilibrium in Earth's energy budget (expressed as the Earth's Energy Imbalance, or EEI), both temperatures and sea level must continue to rise – even with carbon emissions lowered to net zero (where anthropogenic CO<sub>2</sub> emissions = anthropogenic CO<sub>2</sub> removals) – until the energy budget balance is eventually restored. Even if net zero were achieved immediately, elevated global temperatures would persist for at least several tens of millennia, with expected levels of warmth by the end of this century not seen since the early Late Pliocene. Interglacial conditions are likely to persist for at least 50,000 years under already-accumulated CO<sub>2</sub> emissions and Earth's low eccentricity orbit. Continued increases in greenhouse gas emissions are likely to extend that persistence to around 500,000 years, suppressing the pronounced expression of Milankovitch cyclicity typical of the later Pleistocene Epoch. This major perturbation alone is sufficient to justify the Anthropocene as terminating the Holocene Epoch. The wider and mostly irreversible effects of climate change, not least in amplifying reconfiguration of the biosphere, emphasize the scale of this departure from Holocene conditions, justifying the establishment of a new epoch.</div><div>Given such perspectives, the Anthropocene epoch represents what will become a lasting and substantial change in the Earth System. It is the Holocene Epoch at only 11,700 years duration that will appear as the ‘blip’ in the Geological Time Scale, a brief interval when complex, settled human societies co-existed with, but did not overwhelm, a stable Earth System.</div></div>","PeriodicalId":55089,"journal":{"name":"Global and Planetary Change","volume":"242 ","pages":"Article 104568"},"PeriodicalIF":4.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142424971","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}
引用次数: 0
Impacts of moisture transport on extreme precipitation in the Central Plains Urban Agglomeration, China 中国中原城市群水汽输送对极端降水的影响
IF 4 1区 地球科学
Global and Planetary Change Pub Date : 2024-09-12 DOI: 10.1016/j.gloplacha.2024.104582
Yufan Chen , Shuyu Zhang , Guoqing Gong , Penghan Chen , Thian Yew Gan , Deliang Chen , Junguo Liu
{"title":"Impacts of moisture transport on extreme precipitation in the Central Plains Urban Agglomeration, China","authors":"Yufan Chen ,&nbsp;Shuyu Zhang ,&nbsp;Guoqing Gong ,&nbsp;Penghan Chen ,&nbsp;Thian Yew Gan ,&nbsp;Deliang Chen ,&nbsp;Junguo Liu","doi":"10.1016/j.gloplacha.2024.104582","DOIUrl":"10.1016/j.gloplacha.2024.104582","url":null,"abstract":"<div><p>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 water vapor trajectories associated with these events, identifying atmospheric circulations linked to various moisture sources. Summer EPEs in the CPUA have become more frequent and intense. Urban regions typically experience stronger EPEs, while mountainous regions encounter more frequent but milder precipitation. The moisture contributing to these events comes from sources including Eurasia (9.94 %), the northern and southern Western North Pacific (48.39 %), and the Bay of Bengal and South China Sea (41.67 %). Notably, contributions from Eurasia and the northern Western North Pacific have increased, whereas those from the Bay of Bengal and the South China Sea have decreased. Events driven by Western North Pacific moisture have stronger impacts on urban areas, influenced by abnormal anticyclonic patterns and the development of the Huang-Huai cyclone, which triggers intense convective activity over the CPUA. The strengthening of the Western North Pacific subtropical high promotes the transport of warm air, which merges with colder inland air, leading to extreme precipitation.</p></div>","PeriodicalId":55089,"journal":{"name":"Global and Planetary Change","volume":"242 ","pages":"Article 104582"},"PeriodicalIF":4.0,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0921818124002297/pdfft?md5=2f0edb61769d18cddc747a6ccfeefc6e&pid=1-s2.0-S0921818124002297-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142229853","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}
引用次数: 0
Increasing cross-border dust storm from Mongolia to China during 1987–2022 1987-2022 年间蒙古到中国的跨境沙尘暴不断增加
IF 4 1区 地球科学
Global and Planetary Change Pub Date : 2024-09-11 DOI: 10.1016/j.gloplacha.2024.104578
Yihao Ma , Rui Mao , Cuicui Shi , Xingya Feng , Li Ma , Xingyu Song
{"title":"Increasing cross-border dust storm from Mongolia to China during 1987–2022","authors":"Yihao Ma ,&nbsp;Rui Mao ,&nbsp;Cuicui Shi ,&nbsp;Xingya Feng ,&nbsp;Li Ma ,&nbsp;Xingyu Song","doi":"10.1016/j.gloplacha.2024.104578","DOIUrl":"10.1016/j.gloplacha.2024.104578","url":null,"abstract":"<div><p>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 between China and Mongolia during 1987–2022. The results indicate that, on average, approximately seven cross-border dust storm events occur annually between China and Mongolia, predominantly during the spring. The frequency of cross-border dust storms from Mongolia to China significantly increased from 2.2 events in P1 (1987–1999) to 7.5 events in P2 (2000−2022). Long-term trends suggest that rising dust emissions in east-central Mongolia largely contributed to this increase. The increase in cross-border dust storms from Mongolia to China in the spring was driven by more frequent cyclones in eastern Mongolia and Northeast China during P2. This is evidenced by a negative height anomaly and increased vorticity at 850 hPa over Northeast China. The cyclones were linked to the northward shift of the East Asian Polar Front Jet Stream (EAPJ) at 300 hPa between 50<strong>°</strong>N and 60<strong>°</strong>N. Additionally, surface conditions such as higher temperatures and decreased vegetation in Mongolia contributed to the increased frequency of cross-border dust storms from P1 to P2.</p></div>","PeriodicalId":55089,"journal":{"name":"Global and Planetary Change","volume":"242 ","pages":"Article 104578"},"PeriodicalIF":4.0,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142168003","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}
引用次数: 0
Corrigendum to “Anthropogenically-induced atmospheric Pb cycle in low-latitude Asia since the industrial revolution recorded by high-resolution stalagmites” [Global and Planetary Chang, 232 (2024) 104337] "高分辨率石笋记录的工业革命以来亚洲低纬度地区人类活动引起的大气铅循环"[Global and Planetary Chang, 232 (2024) 104337]更正
IF 4 1区 地球科学
Global and Planetary Change Pub Date : 2024-09-10 DOI: 10.1016/j.gloplacha.2024.104567
Tianli Wang , Pei-Hsuan Yao , Chuan-Chou Shen , Sakonvan Chawchai , Adi Torfstein , Ashish Sinha , Hai Xu , Tsai-Luen Yu , Fangyuan Lin , Xiqian Wang , Dong Li , Hai Cheng , R. Lawrence Edwards , Zhisheng An , Liangcheng Tan
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