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Correction to: Aboveground live tree carbon stock and change in forests of conterminous United States: influence of stand age Correction to:美国大陆森林地上活树碳储量及其变化:林分年龄的影响
IF 3.9 3区 环境科学与生态学
Carbon Balance and Management Pub Date : 2024-07-13 DOI: 10.1186/s13021-024-00265-1
Coeli M. Hoover, James E. Smith
{"title":"Correction to: Aboveground live tree carbon stock and change in forests of conterminous United States: influence of stand age","authors":"Coeli M. Hoover, James E. Smith","doi":"10.1186/s13021-024-00265-1","DOIUrl":"10.1186/s13021-024-00265-1","url":null,"abstract":"","PeriodicalId":505,"journal":{"name":"Carbon Balance and Management","volume":null,"pages":null},"PeriodicalIF":3.9,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://cbmjournal.biomedcentral.com/counter/pdf/10.1186/s13021-024-00265-1","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effects of Different Concentrations of Weak Acid Fracturing Fluid on the Microstructure of Coal 不同浓度的弱酸性压裂液对煤炭微观结构的影响
IF 5.4 2区 地球科学
Natural Resources Research Pub Date : 2024-07-13 DOI: 10.1007/s11053-024-10380-y
Gan Rui, Zuo Shaojie, Si Junting, Liu Chengwei, Tian Feng, Jiang Zhizhong, Wang Changwei, Peng Shouqing, Xu Zhiyuan
{"title":"Effects of Different Concentrations of Weak Acid Fracturing Fluid on the Microstructure of Coal","authors":"Gan Rui, Zuo Shaojie, Si Junting, Liu Chengwei, Tian Feng, Jiang Zhizhong, Wang Changwei, Peng Shouqing, Xu Zhiyuan","doi":"10.1007/s11053-024-10380-y","DOIUrl":"https://doi.org/10.1007/s11053-024-10380-y","url":null,"abstract":"<p>As a crucial factor that influences the hydraulic fracturing effectiveness of coal seams, fracturing fluids have garnered increasing attention. Among them, acid fracturing fluids have demonstrated positive impact on the pore transformation of coal, but high-strength acid fracturing fluids can cause corrosion damage to mechanical equipment. In this study, we employed acetic acid to formulate four types of weak acid fracturing fluids with varying concentrations and conducted soaking experiments. We analyzed the changes in the physical and chemical structure of coal samples before and after treatment using Fourier-transform infrared spectroscopy and X-ray diffraction analysis. The changes in the pore structure of coal samples before and after treatment were characterized by nitrogen adsorption and scanning electron microscopy. Our findings indicate the following: (1) The effects of different concentrations of acetic acid fracturing fluid on functional groups and microcrystalline structure vary. The 5% concentration fracturing fluid had the most significant impact on the organic structure of coal samples, with decreases in the area of hydroxyl structure, aliphatic structure, and oxygen-containing structure of 2.97%, 1.37%, and 0.68%, respectively. The 6% concentration fracturing fluid had the most significant impact on crystal structure, leading to a high degree of recrystallization and a fragile crystal network structure. (2) Fracturing fluids with concentrations below 7% can increase the number of mesopores and simplify the pore structure, while concentrations above 7% can lead to an increase in micropores and a more complex pore structure. (3) After the action of fracturing fluid, carbonate minerals are dissolved, and the pores of coal samples increase. However, excessively high concentrations of acetic acid fracturing fluid can facilitate shedding of mineral particles and block some pore channels, worsening the connectivity between pores. (4) The octadecylamine acetate formed by the combination of octadecylamine and acetic acid develops as a partial film on the surface of a coal body, reducing the roughness of the fracture surface and facilitating the flow of the fracturing fluid. Our findings provide theoretical support for the preparation and selection of weak acid fracturing fluids.</p>","PeriodicalId":54284,"journal":{"name":"Natural Resources Research","volume":null,"pages":null},"PeriodicalIF":5.4,"publicationDate":"2024-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Explaining green industrial policy in an age of globalization 解释全球化时代的绿色工业政策
IF 30.7 1区 地球科学
Nature Climate Change Pub Date : 2024-07-12 DOI: 10.1038/s41558-024-02072-5
Jessica F. Green
{"title":"Explaining green industrial policy in an age of globalization","authors":"Jessica F. Green","doi":"10.1038/s41558-024-02072-5","DOIUrl":"https://doi.org/10.1038/s41558-024-02072-5","url":null,"abstract":"Governments are increasingly using industrial policy to develop low-carbon economic sectors and catalyse the energy transition. A recent study provides a framework to explain why governments adopt different types of green industrial policy, depending on industry position in the global supply chain and types of uncertainty.","PeriodicalId":18974,"journal":{"name":"Nature Climate Change","volume":null,"pages":null},"PeriodicalIF":30.7,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597656","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
Sensitivity of GNSS to vertical land motion over Europe: effects of geophysical loadings and common-mode errors 全球导航卫星系统对欧洲陆地垂直运动的敏感性:地球物理负载和共模误差的影响
IF 4.4 2区 地球科学
Journal of Geodesy Pub Date : 2024-07-12 DOI: 10.1007/s00190-024-01856-z
Roland Hohensinn, Pia Ruttner, Yehuda Bock
{"title":"Sensitivity of GNSS to vertical land motion over Europe: effects of geophysical loadings and common-mode errors","authors":"Roland Hohensinn, Pia Ruttner, Yehuda Bock","doi":"10.1007/s00190-024-01856-z","DOIUrl":"https://doi.org/10.1007/s00190-024-01856-z","url":null,"abstract":"<p>We perform a statistical sensitivity analysis on a parametric fit to vertical daily displacement time series of 244 European Permanent GNSS stations, with a focus on linear vertical land motion (VLM), i.e., station velocity. We compare two independent corrections to the raw (uncorrected) observed displacements. The first correction is physical and accounts for non-tidal atmospheric, non-tidal oceanic and hydrological loading displacements, while the second approach is an empirical correction for the common-mode errors. For the uncorrected case, we show that combining power-law and white noise stochastic models with autoregressive models yields adequate noise approximations. With this as a realistic baseline, we report improvement rates of about 14% to 24% in station velocity sensitivity, after corrections are applied. We analyze the choice of the stochastic models in detail and outline potential discrepancies between the GNSS-observed displacements and those predicted by the loading models. Furthermore, we apply restricted maximum likelihood estimation (RMLE), to remove low-frequency noise biases, which yields more reliable velocity uncertainty estimates. RMLE reveals that for a number of stations noise is best modeled by a combination of random walk, flicker noise, and white noise. The sensitivity analysis yields minimum detectable VLM parameters (linear velocities, seasonal periodic motions, and offsets), which are of interest for geophysical applications of GNSS, such as tectonic or hydrological studies.</p>","PeriodicalId":54822,"journal":{"name":"Journal of Geodesy","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
IAG Newsletter 国际咨询组通讯
IF 4.4 2区 地球科学
Journal of Geodesy Pub Date : 2024-07-12 DOI: 10.1007/s00190-024-01877-8
Gyula Tóth
{"title":"IAG Newsletter","authors":"Gyula Tóth","doi":"10.1007/s00190-024-01877-8","DOIUrl":"https://doi.org/10.1007/s00190-024-01877-8","url":null,"abstract":"","PeriodicalId":54822,"journal":{"name":"Journal of Geodesy","volume":null,"pages":null},"PeriodicalIF":4.4,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Crustal Electrical Anisotropic Structure of the Altyn Tagh Fault in the Subei Area, NW China: Implications for Fault Zone Architecture 中国西北苏北地区阿尔金山断裂的地壳电各向异性结构:对断裂带构造的影响
IF 3.9 2区 地球科学
Journal of Geophysical Research: Solid Earth Pub Date : 2024-07-12 DOI: 10.1029/2023jb028550
Zeyi Dong, Qibin Xiao, Zelin Sun, Bing Han, Lifeng Wang, Ji Tang, Jijun Wang
{"title":"Crustal Electrical Anisotropic Structure of the Altyn Tagh Fault in the Subei Area, NW China: Implications for Fault Zone Architecture","authors":"Zeyi Dong, Qibin Xiao, Zelin Sun, Bing Han, Lifeng Wang, Ji Tang, Jijun Wang","doi":"10.1029/2023jb028550","DOIUrl":"https://doi.org/10.1029/2023jb028550","url":null,"abstract":"The fault zone architecture may provide reliable information about the deformations in both on-fault and off-fault media. The outer damage zones of faults may extend for kilometers and exhibit structural anisotropy, which potentially causes electrical anisotropy in rocks. Thus, electrically anisotropic structures may indicate the dimensions and extent of fault damage zones. We investigated the electrical anisotropic structure of the sinistral Altyn Tagh fault (ATF), NW China, using magnetotelluric data collected in and around the Subei Basin. Our three-dimensional resistivity model reveals widespread anisotropic anomalies at depths &lt;∼5 km. The directions of the minimum horizontal resistivity values of the anomalies inside the Qilian Shan southeast of the ATF are dominantly subparallel to the fault traces at the surface. At deeper levels (∼15–19 km and ∼33–43 km), the anisotropic anomalies are mainly concentrated near the northern strand of the ATF (NATF) and the North Yemahe fault (NYMF) in the northeastern Subei area. The mid-lower crust (∼33–43 km) inside the Qilian Shan is characterized by isotropy or weak anisotropy with low resistivities (∼10 Ωm), which deviate significantly from the values along the NATF. Our results indicate the presence of a ∼30 km wide off-fault damage zone along the NATF and NYMF in the shallow crust that thins downward to the lower crust. We propose that the distribution of anisotropic anomalies is influenced primarily by neighboring faults. An independent deformation model could be appropriate for evaluating the relationships between the ATF and thrust faults within the Qilian Shan.","PeriodicalId":15864,"journal":{"name":"Journal of Geophysical Research: Solid Earth","volume":null,"pages":null},"PeriodicalIF":3.9,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Key propagation pathways of extreme precipitation events revealed by climate networks 气候网络揭示的极端降水事件的主要传播途径
IF 9 1区 地球科学
npj Climate and Atmospheric Science Pub Date : 2024-07-12 DOI: 10.1038/s41612-024-00701-6
Kaiwen Li, Yu Huang, Kai Liu, Ming Wang, Fenying Cai, Jianxin Zhang, Niklas Boers
{"title":"Key propagation pathways of extreme precipitation events revealed by climate networks","authors":"Kaiwen Li, Yu Huang, Kai Liu, Ming Wang, Fenying Cai, Jianxin Zhang, Niklas Boers","doi":"10.1038/s41612-024-00701-6","DOIUrl":"https://doi.org/10.1038/s41612-024-00701-6","url":null,"abstract":"<p>The comprehensive understanding of propagation patterns of extreme precipitation events (EPEs) is essential for early warning of associated hazards such as floods and landslides. In this study, we utilize climate networks based on an event synchronization measure to investigate the propagation patterns of EPEs over the global land masses, and identify 16 major propagation pathways. We explain them in association with regional weather systems, topographic effects, and travelling Rossby wave patterns. We also demonstrate that the revealed propagation pathways carry substantial EPE predictability in certain areas, such as in the Appalachian, the Andes mountains. Our results help to improve the understanding of key propagation patterns of EPEs, where the global diversity of the propagated patterns of EPEs and corresponding potential predictability provide prior knowledge for predicting EPEs, and demonstrate the power of climate network approaches to study the spatiotemporal connectivity of extreme events in the climate system.</p>","PeriodicalId":19438,"journal":{"name":"npj Climate and Atmospheric Science","volume":null,"pages":null},"PeriodicalIF":9.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597453","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
Petrogenesis of magmatic REE mineral occurrences near Jamestown, Colorado (U.S.A.) 美国科罗拉多州詹姆斯敦附近岩浆 REE 矿点的成岩作用
IF 4.8 2区 地球科学
Mineralium Deposita Pub Date : 2024-07-12 DOI: 10.1007/s00126-024-01291-2
Charles R. Stern, Shea Burnham, Andrew Kylander-Clark, Julien Allaz, Markus B. Raschke
{"title":"Petrogenesis of magmatic REE mineral occurrences near Jamestown, Colorado (U.S.A.)","authors":"Charles R. Stern, Shea Burnham, Andrew Kylander-Clark, Julien Allaz, Markus B. Raschke","doi":"10.1007/s00126-024-01291-2","DOIUrl":"https://doi.org/10.1007/s00126-024-01291-2","url":null,"abstract":"<p>Two magmatic REE-rich occurrences, located near Jamestown, Colorado, and hosted in the Precambrian Longs Peak granite batholith, exhibit unusual textures that suggest formation by fluoride-silicate melt immiscibility. Both contain small (&lt;2 mm diameter) globular F-, P-, and REE-rich segregations of fluorite and monazite-(Ce). In addition, the northern of the two localities preserves evidence of a second melt immiscibility event in the form of larger (up to several cm diameter) aplite-hosted globular segregations of fluorite and the REE minerals allanite-(Ce), monazite-(Ce), fluorbritholite-(Ce), törnebohmite-(Ce), and cerite-(Ce). The southern of the two localities lacks these cm-scale globular textures, but instead contains much larger aggregates of these same REE minerals, with up to &gt;57 wt. % ΣREE<sub>2</sub>O<sub>3</sub>, yet no fluorite, as well as large aggregates of allanite-(Ce) and quartz, and an amphibole-bearing REE-rich rock containing allanite-(Ce), other REE minerals, quartz and minor apatite. A new Nd-Sm laser ablation age of 1.422(24) Ga on monazite-(Ce) and allanite-(Ce) from the southern locality implies the same age of formation of 1.420(25) Ga as for the northern locality, with equally similar initial ε<sub>Nd1.42Ga</sub> values of these REE minerals. A newly discovered third locality, containing primarily allanite-(Ce), minor monazite-(Ce), and thorite, without fluorite, extends the number, spatial distribution and total volume of these mineralogically unusual magmatic REE occurrences. We suggest that the REE were concentrated in these three localities by multiple stages of fluoride-silicate melt immiscibility. For the southern locality, slower cooling of a possibly larger magma volume, or in a deeper environment, allowed greater aggregation of the immiscibly separated REE-rich phases, as well as loss of the volatile element F, resulting in a greater availability of Ca accommodated by the crystallization of amphibole and minor apatite.</p>","PeriodicalId":18682,"journal":{"name":"Mineralium Deposita","volume":null,"pages":null},"PeriodicalIF":4.8,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Why Do DJF 2023/24 Upper-Level 200-hPa Geopotential Height Forecasts Look Different From the Expected El Niño Response? 为什么 DJF 2023/24 年高层 200 hPa 位势高度预测与预期的厄尔尼诺反应不同?
IF 5.2 1区 地球科学
Geophysical Research Letters Pub Date : 2024-07-12 DOI: 10.1029/2024gl108946
Mingyue Chen, Arun Kumar, Michelle L’Heureux, Peitao Peng, Tao Zhang, Martin P. Hoerling, Henry F. Diaz
{"title":"Why Do DJF 2023/24 Upper-Level 200-hPa Geopotential Height Forecasts Look Different From the Expected El Niño Response?","authors":"Mingyue Chen, Arun Kumar, Michelle L’Heureux, Peitao Peng, Tao Zhang, Martin P. Hoerling, Henry F. Diaz","doi":"10.1029/2024gl108946","DOIUrl":"https://doi.org/10.1029/2024gl108946","url":null,"abstract":"We investigate why the North American Multi-Model Ensemble (NMME) upper-level height forecast for December–February (DJF) 2023/24 differs from the expected El Niño response. These atypical height anomalies emerged despite the fact a strong El Niño was forecast. The analysis focuses on diagnosing the NMME forecasts of DJF 2023/24 for SSTs and 200-hPa heights initialized at the beginning of November 2023 relative to other ensemble mean NMME DJF forecasts dating back to 1982. The results demonstrate that forecasts of the 200-hPa height anomalies had a large contribution from warming trends in global SSTs. It is the combination of trends and the expected El Niño teleconnection that results in the forecast height anomalies. Increasingly, for forecasts of geopotential height anomalies during the recent El Niño winters, the amplitude of trends is nearly equal to the signal from El Niño and has implications for the climatological base period selection for seasonal forecasts.","PeriodicalId":12523,"journal":{"name":"Geophysical Research Letters","volume":null,"pages":null},"PeriodicalIF":5.2,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597447","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
Lessons from the Nile about rivers and society 尼罗河对河流和社会的启示
IF 18.3 1区 地球科学
Nature Geoscience Pub Date : 2024-07-12 DOI: 10.1038/s41561-024-01499-x
{"title":"Lessons from the Nile about rivers and society","authors":"","doi":"10.1038/s41561-024-01499-x","DOIUrl":"https://doi.org/10.1038/s41561-024-01499-x","url":null,"abstract":"The Holocene flooding and sedimentation history of the Nile illustrates how fluvial geomorphology has long influenced human society.","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":null,"pages":null},"PeriodicalIF":18.3,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597757","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
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