Geophysical Research Letters最新文献_第10页

Projected Changes of the Northern Annular Mode Linked to Seasonality of the ENSO Teleconnection 北半球环模的预估变化与ENSO遥相关的季节性有关

IF 4.6 1区地球科学

Geophysical Research Letters Pub Date : 2025-09-19 DOI: 10.1029/2025GL118175

T. Kawamura, Y. Kosaka, S. Okajima, H. Nakamura

引用次数: 0

Detection of Negative Carbon and Oxygen Pickup Ions From Dust Orbiting Jupiter 探测木星轨道尘埃中的负碳氧离子

IF 4.6 1区地球科学

Geophysical Research Letters Pub Date : 2025-09-19 DOI: 10.1029/2025GL117406

F. Allegrini, J. R. Szalay, D. J. McComas, R. W. Ebert, S. J. Bolton, G. Clark, J. E. P. Connerney, W. S. Kurth, P. Louarn, B. Mauk, A. Pontoni, J. Saur, P. Valek, J.-Z. Wang, R. J. Wilson

{"title":"Detection of Negative Carbon and Oxygen Pickup Ions From Dust Orbiting Jupiter","authors":"F. Allegrini, J. R. Szalay, D. J. McComas, R. W. Ebert, S. J. Bolton, G. Clark, J. E. P. Connerney, W. S. Kurth, P. Louarn, B. Mauk, A. Pontoni, J. Saur, P. Valek, J.-Z. Wang, R. J. Wilson","doi":"10.1029/2025GL117406","DOIUrl":"10.1029/2025GL117406","url":null,"abstract":"We report on observations of negative carbon and oxygen pickup ions (PUIs) originating from dust orbiting Jupiter. The PUIs are observed at altitudes of a few thousand kilometers (∼4,800–10,200 km) above the 1-bar level of Jupiter's atmosphere and up to ∼11,000–15,000 km from the equatorial plane, thus providing constraints on the location of the dust population and its composition. The Jovian Auroral Distributions Experiment–Electron sensors on Juno detect these PUIs because of the combination of a fast-moving spacecraft and the large Keplerian orbital speed of the dust near Jupiter. We demonstrate that this scenario is consistent with the observations. We find a PUI C/O ratio of 10 ± 5 and a PUI energy release of ∼11 ± 9 eV. Electron stimulated desorption is a likely process for creating these PUIs. The dust is well inside the halo population and likely carbonaceous.","PeriodicalId":12523,"journal":{"name":"Geophysical Research Letters","volume":"52 18","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2025GL117406","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145088921","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

Impact of Asian Summer Monsoon on the 2021 Pacific Northwest Heatwave: Can It? Did It? 亚洲夏季风对2021年太平洋西北热浪的影响：可以吗？干的?

IF 4.6 1区地球科学

Geophysical Research Letters Pub Date : 2025-09-19 DOI: 10.1029/2025GL117205

Peiqiang Xu, James A. Screen, Lin Wang, Tim Woollings, Hanjie Fan, Matthew Patterson, Zizhen Dong

{"title":"Impact of Asian Summer Monsoon on the 2021 Pacific Northwest Heatwave: Can It? Did It?","authors":"Peiqiang Xu, James A. Screen, Lin Wang, Tim Woollings, Hanjie Fan, Matthew Patterson, Zizhen Dong","doi":"10.1029/2025GL117205","DOIUrl":"10.1029/2025GL117205","url":null,"abstract":"This study examines the role of Asian summer monsoon in the unprecedented 2021 Pacific Northwest (PNW) heatwave. We address this by separating it into two relevant but independent questions: Can monsoon activity observed prior to the event impact PNW climate, and did it specifically impact the 2021 PNW heatwave? Based on observational diagnostics, numerical experiments, and subseasonal-to-seasonal (S2S) forecasts, our results consistently indicate although the monsoon activity can exert a cooling effect on the PNW, on average, it had a warming influence in the specific case of 2021 and thus contributed to the heatwave that summer. The contrasting answers to the “can it” and “did it” questions highlight how background flow and specific forcing pattern during the event can modulate—or even reverse—the expected impact. We advocate future work exploring the link between large-scale climatic drivers and extremes should be undertaken in an event-specific context to better understand these relationships.","PeriodicalId":12523,"journal":{"name":"Geophysical Research Letters","volume":"52 18","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2025GL117205","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089375","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

Enhanced Trans-Seasonal ENSO Impact on East Asian-Western Pacific Climate in Warmer Future: An Emergent Constraint From Multi-Large Ensembles ENSO对未来变暖东亚-西太平洋气候的跨季节增强影响：来自多大组合的紧急约束

IF 4.6 1区地球科学

Geophysical Research Letters Pub Date : 2025-09-19 DOI: 10.1029/2025GL116648

Lu Wang, Xiaolong Chen, Yan Zhao, Tianjun Zhou, Lin Chen, Ming Sun

{"title":"Enhanced Trans-Seasonal ENSO Impact on East Asian-Western Pacific Climate in Warmer Future: An Emergent Constraint From Multi-Large Ensembles","authors":"Lu Wang, Xiaolong Chen, Yan Zhao, Tianjun Zhou, Lin Chen, Ming Sun","doi":"10.1029/2025GL116648","DOIUrl":"10.1029/2025GL116648","url":null,"abstract":"Predicting the boreal summer climate over East Asia and the western Pacific is crucial for communities preparing for extreme events. A key source of predictability is the strong connection between the western North Pacific anomalous circulation (WNPAC) and the preceding El Niño-Southern Oscillation (ENSO). However, the potential change of this link under future greenhouse warming remains uncertain due to substantial internal variability and inter-model discrepancies. Here, by leveraging emergent constraints from multi-large ensemble simulations, we show that the trans-seasonal ENSO-WNPAC correlation robustly strengthens under high-emission scenarios, with a 67% reduction in the projection uncertainty. This enhancement indicates a 9% increase in the ENSO-contributed predictability (explained variance) of summer WNPAC. The spread across models primarily derives from their differing representations of ENSO-decaying regimes. Our results indicate a more predictable East Asian-western Pacific summer climate in a warmer world, offering encouraging prospects for adapting to anticipated increases in extremes associated with WNPAC.","PeriodicalId":12523,"journal":{"name":"Geophysical Research Letters","volume":"52 18","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2025GL116648","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089921","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

Multi-Centennial Spatial Coherency Among Atlantic Tropical Cyclones From Simulated and Reconstructed Storm Records 来自模拟和重建风暴记录的大西洋热带气旋的百年空间相干性

IF 4.6 1区地球科学

Geophysical Research Letters Pub Date : 2025-09-19 DOI: 10.1029/2025GL116642

Richard M. Sullivan, Elizabeth Wallace, Sylvia Dee, Gabriel A. Vecchi, Wenchang Yang, Kerry Emanuel

{"title":"Multi-Centennial Spatial Coherency Among Atlantic Tropical Cyclones From Simulated and Reconstructed Storm Records","authors":"Richard M. Sullivan, Elizabeth Wallace, Sylvia Dee, Gabriel A. Vecchi, Wenchang Yang, Kerry Emanuel","doi":"10.1029/2025GL116642","DOIUrl":"10.1029/2025GL116642","url":null,"abstract":"Proxy-based reconstructions of long-term Atlantic tropical cyclone (TC) variability reveal low-frequency oscillations in regional TC landfalls over the Common Era. However, the limited spatial coverage and increased uncertainty of the proxy records complicates assessments of this feature. Here we present a new multi-ensemble set of synthetic TCs downscaled from the Last Millennium Reanalysis project, which is based on sea surface temperatures that more accurately reflect past conditions. Throughout ensemble members, there are coherent multi-centennial shifts in landfalls with persistent intervals of increased (decreased) occurrence along the eastern US concurrent with inverse activity in the southwest Caribbean and Gulf of Mexico, associated with basin-scale redistributions of storm tracks. The emergent TC-dipole from modeled climate provides context and support for its presence within proxy-reconstructions. Furthermore, dipole recurrence across ensembles demonstrates that it arises from sea surface temperature-informed climate processes. However, timing differences between ensembles indicate that transient atmospheric variability influences dipole position.","PeriodicalId":12523,"journal":{"name":"Geophysical Research Letters","volume":"52 18","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2025GL116642","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145084114","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

Building Blocks of Cratonic Lithosphere in Southwestern Australia: Early Results of WA Array 澳大利亚西南部克拉通岩石圈的组成单元：WA阵列的早期结果

IF 4.6 1区地球科学

Geophysical Research Letters Pub Date : 2025-09-19 DOI: 10.1029/2025GL117119

Vadim Levin, Huaiyu Yuan, Ruth Murdie, Klaus Gessner, Raphael Quentin de Gromard, Megan Miller

{"title":"Building Blocks of Cratonic Lithosphere in Southwestern Australia: Early Results of WA Array","authors":"Vadim Levin, Huaiyu Yuan, Ruth Murdie, Klaus Gessner, Raphael Quentin de Gromard, Megan Miller","doi":"10.1029/2025GL117119","DOIUrl":"10.1029/2025GL117119","url":null,"abstract":"Using data from Western Australia (WA) Array—a decadal data acquisition project by the State government of WA—we construct a seismic profile crossing major tectonic units of the region. We perform converted-wave imaging of vertical gradients in seismic impedance and rock texture in conjunction with ambient noise tomography constraints on bulk seismic properties. With ∼40 km station spacing, we can detect lateral variations in seismic properties that correspond to major tectonic units. We outline lithospheric regions with similar seismic properties, and demonstrate the importance of interpreting seismic signatures of rock fabric. We show that major tectonic boundaries are inclined, identify an apparently cratonic fragment within the Proterozoic Albany–Fraser Orogen, refine boundaries of Neoarchean tectonic domains in the southwestern Yilgarn Craton, and document focused deformation at the crust-mantle boundary beneath one of these domains. Our findings strengthen the notion of cratonic lithosphere as a mosaic of distinct tectonic domains.","PeriodicalId":12523,"journal":{"name":"Geophysical Research Letters","volume":"52 18","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2025GL117119","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145084117","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

Radiogenic and Stable Isotope Evidence for Recycling of Ancient Oceanic Crust in High-Nb Basalts From Baja California, Mexico 墨西哥下加利福尼亚高铌玄武岩古洋壳再循环的放射性成因和稳定同位素证据

IF 4.6 1区地球科学

Geophysical Research Letters Pub Date : 2025-09-19 DOI: 10.1029/2025GL115035

Hai-Quan Liu, Jie Li, Thierry Calmus, Alfredo Aguillón-Robles, Le Zhang, Long Zhang, Xiao-Long Huang, Yi-Gang Xu

{"title":"Radiogenic and Stable Isotope Evidence for Recycling of Ancient Oceanic Crust in High-Nb Basalts From Baja California, Mexico","authors":"Hai-Quan Liu, Jie Li, Thierry Calmus, Alfredo Aguillón-Robles, Le Zhang, Long Zhang, Xiao-Long Huang, Yi-Gang Xu","doi":"10.1029/2025GL115035","DOIUrl":"10.1029/2025GL115035","url":null,"abstract":"The genesis of high-Nb basalts (HNB) in subduction zones remains controversial, attributed to melting products of metasomatized mantle linked to recent or ancient subduction events. Here we present radiogenic isotope and molybdenum compositions for post-subduction HNBs and adakites from Baja California, Mexico. The HNBs show more radiogenic Sr-Pb and less unradiogenic Nd-Hf isotopes compared to the adakites. Their Mo isotopic enrichment (δ98/95Mo), up to −0.12‰ relative to the depleted mantle (−0.21‰), is linked to FOZO (Focal Zone)-like Sr-Nd-Hf-Pb isotopic signatures. These features indicate compositional contribution of recycled, ancient oceanic crust (>1 Gyr), carrying heavy Mo under reduced conditions through serpentinite-related interactions and losing varying amounts of Rb, Nd, Hf, and Pb relative to bulk oceanic crust during subduction dehydration. Our new data reveal ancient contributions to HNB formation and underscore the role of subducted oceanic crust and serpentinite to the formation of FOZO mantle signatures.","PeriodicalId":12523,"journal":{"name":"Geophysical Research Letters","volume":"52 18","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2025GL115035","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145089927","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

Seismic Tomography of a Newborn Volcano 新生火山的地震层析成像

IF 4.6 1区地球科学

Geophysical Research Letters Pub Date : 2025-09-19 DOI: 10.1029/2025GL114932

Sergio Gammaldi, Iván Cabrera-Pérez, Ivan Koulakov, Luca D’Auria, Graziella Barberi, Rubén García-Hernández, David Martínez van Dorth, Víctor Ortega-Ramos, Janire Prudencio, Monika Przeor, Jesús M. Ibáñez

{"title":"Seismic Tomography of a Newborn Volcano","authors":"Sergio Gammaldi, Iván Cabrera-Pérez, Ivan Koulakov, Luca D’Auria, Graziella Barberi, Rubén García-Hernández, David Martínez van Dorth, Víctor Ortega-Ramos, Janire Prudencio, Monika Przeor, Jesús M. Ibáñez","doi":"10.1029/2025GL114932","DOIUrl":"10.1029/2025GL114932","url":null,"abstract":"On 19 September 2021, in La Palma, Canary Islands (Spain), a new volcano, later named Tajogaite, erupted. We determined the shallow seismic tomography model of Tajogaite Volcano, including the 3D distributions of Vp, Vs, and Vp/Vs. The tomography of the volcanic edifice has been performed using a combination of a three-component amplitude method for seismic event detection and a sophisticated deep neural network method for picking first arrival times, which allowed the detection and the picking of thousands of earthquakes from a data set recorded by a temporary network deployed around the main crater just a few months after the end of the eruption. We identified shallow low Vp/Vs and deeper high Vp/Vs anomalies, which we interpret as changes in the fluid filling the rocks, transitioning from liquid to steam at shallower low-pressure conditions. Our work highlights, for the first time, the internal structure of a monogenetic volcano, specifically its evolving local hydrothermal system, right after its eruption.","PeriodicalId":12523,"journal":{"name":"Geophysical Research Letters","volume":"52 18","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2025GL114932","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145083897","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

Representing the Teleconnection Between the Jet Stream and Extreme Cold Air Outbreaks Over North America 代表急流与北美极端冷空气爆发之间的遥相关

IF 4.6 1区地球科学

Geophysical Research Letters Pub Date : 2025-09-19 DOI: 10.1029/2025GL116984

Tom Keel, Chris Brierley, Gabriele Messori, Rachel H. White

{"title":"Representing the Teleconnection Between the Jet Stream and Extreme Cold Air Outbreaks Over North America","authors":"Tom Keel, Chris Brierley, Gabriele Messori, Rachel H. White","doi":"10.1029/2025GL116984","DOIUrl":"10.1029/2025GL116984","url":null,"abstract":"Jet streams are narrow bands of fast-flowing air in the atmosphere. Features of jet streams such as large amplitude waves can be used to quantify teleconnections leading to extreme weather. In this study, we examine extreme cold air outbreaks over three regions of North America, a region influenced by the North Pacific jet. This research provides evidence that representing the jet stream using a jet-core algorithm—a method for extracting the 3-dimensional coordinates of fast-flowing wind—could contribute new information for understanding links between the North Pacific jet and climate patterns. We demonstrate that zonal relationships between atmospheric circulation and extreme weather appear more clearly in short-term fluctations when using methods that explicitly extract the jet stream versus using geopotential, a more common technique. We highlight that spatial relationships between the jet stream and extreme conditions over North America are difficult to examine using only simple indices of climate patterns or jet characteristics.","PeriodicalId":12523,"journal":{"name":"Geophysical Research Letters","volume":"52 18","pages":""},"PeriodicalIF":4.6,"publicationDate":"2025-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2025GL116984","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145084115","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

Flow-Induced Compaction Localization in a Rock-Like Medium 类岩石介质中流致压实局部化

IF 4.6 1区地球科学

Geophysical Research Letters Pub Date : 2025-09-19 DOI: 10.1029/2025GL116207

Arnold Bachrach, Yaniv Edery

引用次数: 0