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Supplementing Enhanced Weathering With Organic Amendments Accelerates the Net Climate Benefit of Soil Amendments in Rangeland Soils 用有机改进剂补充增强的风化作用加速了牧场土壤改进剂的净气候效益
IF 8.3
AGU Advances Pub Date : 2025-04-18 DOI: 10.1029/2024AV001480
Tyler L. Anthony, Andrew R. Jones, Whendee L. Silver
{"title":"Supplementing Enhanced Weathering With Organic Amendments Accelerates the Net Climate Benefit of Soil Amendments in Rangeland Soils","authors":"Tyler L. Anthony,&nbsp;Andrew R. Jones,&nbsp;Whendee L. Silver","doi":"10.1029/2024AV001480","DOIUrl":"10.1029/2024AV001480","url":null,"abstract":"<p>Carbon dioxide (CO<sub>2</sub>) removal (carbon dioxide removal (CDR)) that combines decreased greenhouse gas emissions with atmospheric CO<sub>2</sub> reduction is needed to limit climate change. Enhanced rock weathering (ERW) of ground silicate minerals is an emerging CDR technology with the potential to decrease atmospheric CO<sub>2</sub>. However, there are few multi-year field studies and considerable uncertainty in field-rates of ERW. We explored combining finely ground metabasaltic rock with other soil CDR technologies (compost and biochar amendments) to stimulate carbon (C) sequestration. The combined ground rock (GR), compost, and biochar amendment had the greatest increases in soil C stocks over 3 years (15.3 ± 4.8 Mg C ha<sup>−1</sup>). All other treatments slowed or reversed background C losses, with GR-only treatments reducing rates of soil C loss relative to the control but still losing soil C over time. Ground rock amendments lowered nitrous oxide (N<sub>2</sub>O) emissions by 11.0 ± 0.6 kg CO<sub>2</sub>e ha<sup>−1 </sup>yr<sup>−1</sup> and increased methane (CH<sub>4</sub>) consumption by 9.5 ± 3.5 to 18.4 ± 4.4 kg CO<sub>2</sub>e ha<sup>−1 </sup>yr<sup>−1</sup>; while noteworthy, emissions reductions were an order of magnitude smaller than organic C sequestration with compost amendments. The combined amendment yielded the greatest estimated net ecosystem benefit (3 year relative changes in soil C, estimated ERW rates, and greenhouse gas emissions) of −86.0 ± 24.7 Mg CO<sub>2</sub>e ha<sup>−1</sup>. Benefits were dominated by soil organic C gains, directly from organic amendments and indirectly from increased plant growth. Weathering rates were &lt;10% of the theoretical potential. Combined ERW and organic amendments increased estimated weathering rates and stimulated soil organic C sequestration.</p>","PeriodicalId":100067,"journal":{"name":"AGU Advances","volume":"6 2","pages":""},"PeriodicalIF":8.3,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024AV001480","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143846144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Hidden Internal Flow Dynamics of Shear-Thinning Magma in Dikes 岩脉中剪切减薄岩浆的隐藏内部流动动力学
IF 8.3
AGU Advances Pub Date : 2025-04-18 DOI: 10.1029/2024AV001495
Janine L. Kavanagh, Caitlin M. Chalk, Thomas J. Jones, David J. C. Dennis
{"title":"The Hidden Internal Flow Dynamics of Shear-Thinning Magma in Dikes","authors":"Janine L. Kavanagh,&nbsp;Caitlin M. Chalk,&nbsp;Thomas J. Jones,&nbsp;David J. C. Dennis","doi":"10.1029/2024AV001495","DOIUrl":"10.1029/2024AV001495","url":null,"abstract":"<p>The viscosity of magma has a first-order control on the explosivity and hazards of a volcanic eruption, and the detection of diking within the subsurface may indicate an eruption is imminent. As magma approaches the surface it is highly likely it will have a non-Newtonian shear-thinning rheology (apparent viscosity decreases as shear rate increases), yet most dike models assume magma is a simple Newtonian fluid. Here we use laser light and particle image velocimetry to image flow within a scaled experimental dike hosting a shear-thinning fluid. The results show that the internal flow dynamics of shear-thinning magma in dikes are very different to Newtonian dikes. The velocity of shear-thinning flow radiates out toward the dike margin at similar magnitude across the dike plane; this is very different to the jet flow and recirculation characteristic of the Newtonian dike model at the same conditions. A linear relationship between tip velocity and inlet Reynolds number <span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <msub>\u0000 <mtext>Re</mtext>\u0000 <mtext>in</mtext>\u0000 </msub>\u0000 </mrow>\u0000 <annotation> ${text{Re}}_{text{in}}$</annotation>\u0000 </semantics></math> in the viscous regime (<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <msub>\u0000 <mtext>Re</mtext>\u0000 <mtext>in</mtext>\u0000 </msub>\u0000 <mo>≲</mo>\u0000 <mn>0.4</mn>\u0000 </mrow>\u0000 <annotation> ${text{Re}}_{text{in}}mathit{lesssim }0.4$</annotation>\u0000 </semantics></math>) is confirmed to also apply to shear-thinning fluids, and transitional flow (<span></span><math>\u0000 <semantics>\u0000 <mrow>\u0000 <mn>0.4</mn>\u0000 <mo>≲</mo>\u0000 <msub>\u0000 <mtext>Re</mtext>\u0000 <mtext>in</mtext>\u0000 </msub>\u0000 <mo>≲</mo>\u0000 <mn>100</mn>\u0000 </mrow>\u0000 <annotation> $0.4mathit{lesssim }{text{Re}}_{text{in}}mathit{lesssim }100$</annotation>\u0000 </semantics></math>) is generated experimentally for the first time. These findings suggest that magma rheology (Newtonian or shear-thinning) cannot be recognized from external factors, such as the dike tip velocity. These results mark a step-change in dike modeling, introducing a new physical framework to test the petrological and geochemical evidence of magma ascent dynamics in dikes leading to volcanic eruptions.</p>","PeriodicalId":100067,"journal":{"name":"AGU Advances","volume":"6 2","pages":""},"PeriodicalIF":8.3,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024AV001495","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143849168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Slow True Polar Wander Around Varying Equatorial Axes Since 320 Ma 自320毫安以来,在不同的赤道轴周围缓慢的真极漫游
IF 8.3
AGU Advances Pub Date : 2025-04-12 DOI: 10.1029/2024AV001515
Bram Vaes, Douwe J. J. van Hinsbergen
{"title":"Slow True Polar Wander Around Varying Equatorial Axes Since 320 Ma","authors":"Bram Vaes,&nbsp;Douwe J. J. van Hinsbergen","doi":"10.1029/2024AV001515","DOIUrl":"10.1029/2024AV001515","url":null,"abstract":"<p>True polar wander (TPW), the rotation of the solid Earth relative to the spin axis, is driven by changes in the Earth's moment of inertia induced by mantle convection and may have influenced past climate and life. Long-term TPW is typically inferred from large polar shifts in paleomagnetic apparent polar wander paths or computed directly by rotating them in a mantle reference frame. However, most apparent polar wander paths do not incorporate uncertainties in paleomagnetic data, which may bias estimates of TPW. Here, we provide new quantitative estimates of TPW since 320 Ma by placing a recent global apparent polar wander path corrected for age bias and with improved uncertainty quantification in existing mantle reference frames. We find large amplitude (&gt;10°) but slow TPW rotations that predominantly occurred about two equatorial axes that are approximately orthogonal. During the Triassic and Jurassic, a ∼24° TPW oscillation occurred about an axis at ∼15°W, close to the present-day TPW axis at ∼10°E. In contrast, the TPW axis was located at ∼85°E during a smaller oscillation (∼6–10°) over the past ∼80 Ma, as well as between 260 and 320 Ma. We propose that these varying TPW axes reflect changes in the distribution and flux of subduction in the Tethyan and Pacific realms. We find no evidence for previously postulated fast (&gt;1°/Ma) TPW oscillations in the Cretaceous and Late Jurassic. Finally, we propose that calibrating mantle convection models against reconstructed TPW will improve our understanding of mantle dynamics and the drivers of TPW itself.</p>","PeriodicalId":100067,"journal":{"name":"AGU Advances","volume":"6 2","pages":""},"PeriodicalIF":8.3,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024AV001515","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143824629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Weak Crust Owing Past Magmatic Intrusions Beneath Campi Flegrei Identified: The Engine for Bradyseismic Movements? 发现坎皮弗莱格雷(Campi Flegrei)地下岩浆侵入造成的薄壳:布雷迪地震运动的引擎?
IF 8.3
AGU Advances Pub Date : 2025-04-05 DOI: 10.1029/2024AV001611
Gianmarco Buono, Francesco Maccaferri, Lucia Pappalardo, Anna Tramelli, Stefano Caliro, Giovanni Chiodini, Virginie Pinel, Eleonora Rivalta, Elena Spagnuolo, Elisa Trasatti, Mauro Antonio Di Vito
{"title":"Weak Crust Owing Past Magmatic Intrusions Beneath Campi Flegrei Identified: The Engine for Bradyseismic Movements?","authors":"Gianmarco Buono,&nbsp;Francesco Maccaferri,&nbsp;Lucia Pappalardo,&nbsp;Anna Tramelli,&nbsp;Stefano Caliro,&nbsp;Giovanni Chiodini,&nbsp;Virginie Pinel,&nbsp;Eleonora Rivalta,&nbsp;Elena Spagnuolo,&nbsp;Elisa Trasatti,&nbsp;Mauro Antonio Di Vito","doi":"10.1029/2024AV001611","DOIUrl":"10.1029/2024AV001611","url":null,"abstract":"<p>Calderas often experience extended periods of unrest that are challenging to relate to a magmatic or hydrothermal origin, making it crucial to assemble a clear picture of these dynamics. Since 2005, Campi Flegrei caldera (Italy) has experienced accelerating ground uplift, seismicity rates, and degassing. Here we conduct petrological and 4D X-ray microtomography investigations on cored rocks from a ∼3 km deep geothermal well located near the center of caldera, complemented by 3D high-resolution seismic tomography. At a depth of ∼2.5–3.0 km we identify the transition to a weak tuff layer likely to trap magmatic fluids. Simulations of magma pathways indicate that stresses generated by caldera unloading may have arrested at the limestone/tuff transition past ascending dykes, which deformed, heated, and released magmatic fluids, deteriorating the surrounding rocks. This weak layer may play a crucial role in building up overpressure, causing deformation and seismicity, thus influencing the dynamics of recent unrests, and possible future magma ascent episodes.</p>","PeriodicalId":100067,"journal":{"name":"AGU Advances","volume":"6 2","pages":""},"PeriodicalIF":8.3,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024AV001611","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143778375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Water Vapor Spectroscopy and Thermodynamics Constrain Earth's Tropopause Temperature 水蒸气光谱和热力学约束地球对流层顶温度
IF 8.3
AGU Advances Pub Date : 2025-04-05 DOI: 10.1029/2024AV001206
Brett A. McKim, Nadir Jeevanjee, Geoffrey K. Vallis, Neil T. Lewis
{"title":"Water Vapor Spectroscopy and Thermodynamics Constrain Earth's Tropopause Temperature","authors":"Brett A. McKim,&nbsp;Nadir Jeevanjee,&nbsp;Geoffrey K. Vallis,&nbsp;Neil T. Lewis","doi":"10.1029/2024AV001206","DOIUrl":"10.1029/2024AV001206","url":null,"abstract":"<p>As Earth warms, the tropopause is expected to rise, but predictions of its temperature change are less certain. Longstanding theories employing “gray” radiation tie the tropopause temperature to outgoing longwave radiation (OLR), but this is in contrast to recent work in which simulations exhibit a Fixed Tropopause Temperature (FiTT) even as OLR increases. The FiTT is thought to result from the interaction between upper tropospheric moisture and radiation, but a predictive theory for FiTT has not yet been formulated. Here, we build on a recent explanation for the temperature of anvil clouds and argue that tropopause temperature, defined by where radiative cooling becomes negligible, is set by water vapor's maximum spectroscopic absorption and Clausius-Clapeyron scaling. This “thermospectric constraint” makes quantitative predictions for tropopause temperature that are borne out in single column and general circulation model experiments where the spectroscopy is modified and both the radiative and lapse-rate tropopause change in response. This constraint provides a theoretical foundation for the FiTT hypothesis and a more refined explanation for why the tropopause rises with surface warming, shows how tropopause temperature can decouple from OLR, suggests a way to relate the temperatures of anvil clouds and the tropopause, and shows how spectroscopy manifests in Earth's general circulation.</p>","PeriodicalId":100067,"journal":{"name":"AGU Advances","volume":"6 2","pages":""},"PeriodicalIF":8.3,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024AV001206","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143784278","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Were Gravity Waves or Lamb Waves Responsible for the Large-Scale Thermospheric Response to the Tonga Eruption? 是重力波还是兰姆波导致了汤加火山喷发的大规模热层反应?
IF 8.3
AGU Advances Pub Date : 2025-04-03 DOI: 10.1029/2024AV001470
Ruoxi Li, Jiuhou Lei, Shun-Rong Zhang, Feifan Liu, Xuetao Chen, Xiaoli Luan, Xing Meng
{"title":"Were Gravity Waves or Lamb Waves Responsible for the Large-Scale Thermospheric Response to the Tonga Eruption?","authors":"Ruoxi Li,&nbsp;Jiuhou Lei,&nbsp;Shun-Rong Zhang,&nbsp;Feifan Liu,&nbsp;Xuetao Chen,&nbsp;Xiaoli Luan,&nbsp;Xing Meng","doi":"10.1029/2024AV001470","DOIUrl":"10.1029/2024AV001470","url":null,"abstract":"<p>The extraordinary eruption of the Tonga volcano on 15 January 2022 lofted material to heights exceeding 50 km, marking the highest observed since the satellite era. This eruption caused significant disturbances spanning from the hydrosphere up to the thermosphere. Our recent investigation discovered the dramatic thermospheric responses at satellite altitudes. This study, however, provides physical insights into two main possible processes, secondary gravity waves (GWs) and Lamb waves, which may explain those observed large-scale thermospheric disturbances. The comparison between the simulations and observations suggests that the MESORAC-HIAMCM secondary GWs are consistent with GRACE-FO measured global-propagation thermospheric density disturbances in timing and amplitude. WACCM-X simulations suggest that the Lamb wave can reach the thermosphere as a sharp, narrow wave packet, and may contribute about 25% to the total disturbances at 510 km.</p>","PeriodicalId":100067,"journal":{"name":"AGU Advances","volume":"6 2","pages":""},"PeriodicalIF":8.3,"publicationDate":"2025-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024AV001470","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143770281","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Enhanced Weathering May Benefit From Co-Application With Organic Amendments 与有机改进剂共同应用可增强风化作用
IF 8.3
AGU Advances Pub Date : 2025-04-01 DOI: 10.1029/2025AV001693
Maya Almaraz
{"title":"Enhanced Weathering May Benefit From Co-Application With Organic Amendments","authors":"Maya Almaraz","doi":"10.1029/2025AV001693","DOIUrl":"10.1029/2025AV001693","url":null,"abstract":"<p>Enhanced weathering has emerged as a promising natural climate solution that has the potential to remove billions of tons of carbon from the atmosphere if widely adopted in agricultural settings. Despite this potential, few field trials have been published that verify the carbon dioxide removal (CDR) potential of enhanced weathering in croplands and, until now, none had been published in grazing lands. Anthony et al. (2025, https://doi.org/10.1029/2024AV001480) conducted the first trial of enhanced weathering in a California rangeland and showed weathering of ground silicate rocks despite drought conditions in an already dry climate. Co-application of inorganic (silicate rocks) with organic (biochar and compost) amendments revealed not just additive, but synergistic effects whereby organic amendments increased rates of weathering. This is important because field CDR rates were &lt;10% of the theoretical maximum (i.e., the rate if basalt was completely weathered); thus, methods to improve weathering rates will be necessary for this practice to scale in a meaningful way. Multi-carbon pool measurements revealed not only how co-application of soil amendments heightened net carbon benefits, but also how soil amendments complemented each other to produce net benefits for soil carbon, biomass growth, and greenhouse gas emission reductions. Anthony et al. (2025, https://doi.org/10.1029/2024AV001480) produce new insights toward our understanding of enhanced weathering as well as introduce paths for future research concerning combined amendment applications, synergistic mechanisms for carbon storage, and deployment in various agricultural contexts. While questions remain about the fate of weathering products in arid regions, Anthony et al. (2025, https://doi.org/10.1029/2024AV001480) present novel findings on the potential for significant weathering to occur even under suboptimal conditions.</p>","PeriodicalId":100067,"journal":{"name":"AGU Advances","volume":"6 2","pages":""},"PeriodicalIF":8.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2025AV001693","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143741376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-Speed Electron Flows in the Earth Magnetotail 地球磁尾中的高速电子流
IF 8.3
AGU Advances Pub Date : 2025-04-01 DOI: 10.1029/2024AV001549
Huijie Liu, Wenya Li, Binbin Tang, Cecilia Norgren, Kaijun Liu, Yuri V. Khotyaintsev, Daniel Graham, Tongkuai Li, Chongle Zhang, Andris Vaivads, Shan Wang, Jiansen He, Xiaocheng Guo, James L. Burch, Per-Arne Lindqvist, Robert Ergun, Daniel Gershman, Benoit Lavraud, Christopher Russell, Quanming Lu, Chi Wang
{"title":"High-Speed Electron Flows in the Earth Magnetotail","authors":"Huijie Liu,&nbsp;Wenya Li,&nbsp;Binbin Tang,&nbsp;Cecilia Norgren,&nbsp;Kaijun Liu,&nbsp;Yuri V. Khotyaintsev,&nbsp;Daniel Graham,&nbsp;Tongkuai Li,&nbsp;Chongle Zhang,&nbsp;Andris Vaivads,&nbsp;Shan Wang,&nbsp;Jiansen He,&nbsp;Xiaocheng Guo,&nbsp;James L. Burch,&nbsp;Per-Arne Lindqvist,&nbsp;Robert Ergun,&nbsp;Daniel Gershman,&nbsp;Benoit Lavraud,&nbsp;Christopher Russell,&nbsp;Quanming Lu,&nbsp;Chi Wang","doi":"10.1029/2024AV001549","DOIUrl":"10.1029/2024AV001549","url":null,"abstract":"<p>High-speed electron flows (HSEFs) play a crucial role in the energy dissipation and conversion processes within the terrestrial magnetosphere and can drive various types of plasma waves and instabilities, affecting the electron-scale dynamics. The existence, spatial distribution, and general properties of HSEFs in the Earth magnetotail are still unknown. In this study, we conduct a comprehensive survey of HSEFs in the Earth magnetotail, utilizing NASA's Magnetospheric Multiscale (MMS) mission observations from 2017 to 2021. A total of 642 events characterized by electron bulk speeds exceeding 5,000 km/s are identified. The main statistical properties are: (a) The duration of almost all HSEFs are less than 4 s, and the average duration is 0.74 s. (b) HSEFs exhibit a strong dawn-dusk (30%–70%) asymmetry. (c) 39.6%, 29.0%, and 31.4% of the events are located in the plasma sheet, plasma sheet boundary layer (PSBL), and lobe region, respectively. (d) In the plasma sheet, HSEFs have arbitrary moving directions regarding the ambient magnetic field, and the events near the neutral line predominantly move along the same direction as the ion outflows, indicating outflow electrons generated by magnetic reconnection. (e) HSEFs in the PSBL and lobe mainly move along the ambient magnetic field, and 70% of HSEFs in the PSBL exhibit features of reconnection inflow. The HSEFs in lobe regions may locate near the reconnection electron edges. Our study reveals that the HSEFs in magnetotail are closely associated with magnetic reconnection, and the statistical results deepen the understanding of HSEF fundamental properties in collisionless plasma.</p>","PeriodicalId":100067,"journal":{"name":"AGU Advances","volume":"6 2","pages":""},"PeriodicalIF":8.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024AV001549","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143741061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bridging Information From Paleo-Hydrological and Climate Model Ensembles to Assess Long Term Hydrological Drought Hazard 从古水文和气候模型集合的桥接信息来评估长期水文干旱灾害
IF 8.3
AGU Advances Pub Date : 2025-04-01 DOI: 10.1029/2024AV001393
Rui Guo, Hung T. T. Nguyen, Stefano Galelli, Serena Ceola, Alberto Montanari
{"title":"Bridging Information From Paleo-Hydrological and Climate Model Ensembles to Assess Long Term Hydrological Drought Hazard","authors":"Rui Guo,&nbsp;Hung T. T. Nguyen,&nbsp;Stefano Galelli,&nbsp;Serena Ceola,&nbsp;Alberto Montanari","doi":"10.1029/2024AV001393","DOIUrl":"10.1029/2024AV001393","url":null,"abstract":"<p>Characterizing the evolution of drought frequency and severity under anthropogenic global warming remains a key challenge because of the mismatch between the length of instrumental records and the long-term variability of drought features. To address this gap, we propose a modeling framework that combines river flow observations, paleo-hydrological reconstructions, and climate model simulations. Such diversity of climate information, that is bridged in a flexible approach, allows evaluating the hazard of hydrological droughts for any large catchment globally. By focusing on the specific case of Alpine regions and analyzing the information contained in an ensemble for the period 1100–2100, we show that, compared to the past nine centuries, the mean annual flow in the Po River (Italy's main water course) may decrease by about 10% during the 21st century, while the mean drought duration and severity are likely to increase by approximately 11% and 12%, respectively. Future drought conditions are likely to match, or even exceed, the driest period of the Medieval Climate Anomaly under different emissions scenarios. This indicates unprecedented drought conditions in Alpine regions in the coming decades, thus calling for an increased preparedness in managing water resources under climate change.</p>","PeriodicalId":100067,"journal":{"name":"AGU Advances","volume":"6 2","pages":""},"PeriodicalIF":8.3,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024AV001393","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143741377","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Commitment to Advance Excellence and Inclusion in the Earth and Space Sciences Scholarly Publications 致力于促进地球和空间科学学术出版物的卓越性和包容性
IF 8.3
AGU Advances Pub Date : 2025-03-26 DOI: 10.1029/2025AV001726
Marguerite A. Xenopoulos, Lisa Beal, Graziella Caprarelli, Kelly Caylor, Georgia Destouni, Qingyun Duan, Steven A. Hauck, II, Matthew Huber, Kristopher B. Karnauskas, Kate Lajtha, Noé Lugaz, Alberto Montanari, Helen Nguyen, Julia K. Parrish, Ann Rowan, Isaac R. Santos, Alexandre Schubnel, Michael Wysession
{"title":"Commitment to Advance Excellence and Inclusion in the Earth and Space Sciences Scholarly Publications","authors":"Marguerite A. Xenopoulos,&nbsp;Lisa Beal,&nbsp;Graziella Caprarelli,&nbsp;Kelly Caylor,&nbsp;Georgia Destouni,&nbsp;Qingyun Duan,&nbsp;Steven A. Hauck, II,&nbsp;Matthew Huber,&nbsp;Kristopher B. Karnauskas,&nbsp;Kate Lajtha,&nbsp;Noé Lugaz,&nbsp;Alberto Montanari,&nbsp;Helen Nguyen,&nbsp;Julia K. Parrish,&nbsp;Ann Rowan,&nbsp;Isaac R. Santos,&nbsp;Alexandre Schubnel,&nbsp;Michael Wysession","doi":"10.1029/2025AV001726","DOIUrl":"10.1029/2025AV001726","url":null,"abstract":"<p>Addressing global challenges and advancing knowledge in the Earth and space sciences requires an equitable, diverse, and inclusive scholarly community where researchers must be freely able to conduct, collaborate on, share, review, and discuss their research on important economic and societal topics such as climate change. The current Executive Orders in the United States focus on censoring research and researchers by banning specific words, removing access to data sets, or by restricting what type of research can be funded or published, therefore compromising the knowledge that researchers are able to produce. As Editors-in-Chief of AGU publications we stand by our mission to support the publication of evidence-based, rigorously vetted research without political pressure. Collectively, our peer-reviewed journals and books provide inclusive publication outlets for the global research community to advance Earth and space sciences and to strengthen the public's trust in scientific evidence.</p>","PeriodicalId":100067,"journal":{"name":"AGU Advances","volume":"6 2","pages":""},"PeriodicalIF":8.3,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2025AV001726","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143699008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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