地球科学最新文献

{"title":"Epiphyton phenology determines the persistence of submerged macrophytes: Exemplified in temperate shallow lakes","authors":"Alena S. Gsell, Sven Teurlincx, Marta M. Alirangues Nuñez, Sabine Hilt","doi":"10.1002/lno.12808","DOIUrl":"https://doi.org/10.1002/lno.12808","url":null,"abstract":"Submerged macrophytes are key components in many freshwater and marine ecosystems, contributing to ecosystem functions and services. In temperate shallow lakes, spring epiphyton shading can be decisive for submerged macrophyte development, potentially leading to macrophyte collapse and a shift to undesired, turbid conditions. Global change can alter epiphyton phenology; however, the consequences for submerged macrophytes and their stabilizing effects on clear‐water conditions remain to be elucidated. Based on field data, we propose a general epiphyton shading phenology for submerged macrophytes in temperate shallow lake ecosystems. We express the temporal dynamics of epiphyton shading in terms of onset and relative increase (slope) of epiphyton development as well as epiphyton grazing impacts (onset, duration) using a Boltzmann function. This function is added to the ecosystem model PCLake+ as a customizable, macrophyte‐specific shading factor. We then assess how changes in the epiphyton phenology and the presence of grazing on epiphyton affects submerged macrophyte biomass in a generic temperate shallow model lake under control and warm winter scenarios. The results from the model provide a proof‐of‐concept that epiphyton shading can provoke macrophyte loss and shifts between alternative equilibria. Threshold values for critical shifts depend on epiphyton shading phenology. Earlier onset and longer duration of grazing can maintain macrophytes in nutrient or climate conditions under which they would otherwise collapse. Our results show the pivotal importance of epiphyton phenology in determining lake ecosystem‐wide responses stressing the need for better incorporation of epiphyton into both models and monitoring.","PeriodicalId":18143,"journal":{"name":"Limnology and Oceanography","volume":"7 1","pages":""},"PeriodicalIF":4.5,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143054918","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}

{"title":"Integrated Hydrogeophysical Study for the Delineation of Mio–Plio–Quaternary Aquifers in the Central Part of the Sousse Governorate (Tunisian Sahel)","authors":"S. Ben Skander, R. Guellala, W. Abouda","doi":"10.1007/s11053-025-10457-2","DOIUrl":"https://doi.org/10.1007/s11053-025-10457-2","url":null,"abstract":"<p>The Sousse governorate (Tunisian Sahel) is an important socio-economic pole with a strong need for water. Intense drought during the last years has harmed the governorate’s activities. Therefore, groundwater exploitation is increasingly becoming necessary for ensuring sustainable development. It takes in-depth knowledge of aquifers to create an appropriate exploitation plan. In this context, the present study aimed for precise delineation of Mio–Plio–Quaternary aquifers in the central part of the Sousse governorate by thoroughly reconstructing their geometry and understanding their functioning. To reach this goal, a rich database, including 142 water boreholes and 123 vertical electrical soundings (VES), was used. Water borehole data containing lithological columns and their corresponding well logs as well as hydrodynamic and hydrochemical measurements were exploited. Second, VES data were interpreted and geoelectrical cross sections are accordingly established. Two aquifer formations showing variable arrangement were differentiated from well log analysis and correlation: AI and AII, which are Quaternary and Mio–Pliocene in age, respectively. Aquifer AI is absent at the Kalaa Kebira anticline, while on either side of this structure, both formations are present with deepening of aquifer AII. The established piezometric map exhibits groundwater flow toward the north and south of the Kalaa Kebira anticline. In the same directions, water salinity values increase gradually from 1 to 5 g/l. The geoelectrical cross sections highlighted that tectonic deformations control the water reservoirs arrangement and the groundwater circulation. Cross-comparison of the deduced information regarding the aquifers geometry, hydrodynamics, and water quality brings new elements to the hydrogeological scheme in the central part of the Sousse governorate. The Mio–Plio–Quaternary deposits encompass two multilayered aquifers, which are the Balaoum–Sidi Bou Ali aquifer to the north and the Oued Laya aquifer to the south. These aquifers are juxtaposed with a groundwater divide at the Kalaa Kebira anticline. The present study will guide groundwater exploitation in the Sousse governorate and thereby support sustainable development in the Tunisian Sahel. More broadly, it constitutes a model of hydrogeophysical application for better groundwater management in other arid regions.</p>","PeriodicalId":54284,"journal":{"name":"Natural Resources Research","volume":"59 1","pages":""},"PeriodicalIF":5.4,"publicationDate":"2025-01-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143055118","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}

{"title":"Burning of woody debris dominates fire emissions in the Amazon and Cerrado","authors":"Matthias Forkel, Christine Wessollek, Vincent Huijnen, Niels Andela, Adrianus de Laat, Daniel Kinalczyk, Christopher Marrs, Dave van Wees, Ana Bastos, Philippe Ciais, Dominic Fawcett, Johannes W. Kaiser, Carine Klauberg, Erico Kutchartt, Rodrigo Leite, Wei Li, Carlos Silva, Stephen Sitch, Jefferson Goncalves De Souza, Sönke Zaehle, Stephen Plummer","doi":"10.1038/s41561-024-01637-5","DOIUrl":"https://doi.org/10.1038/s41561-024-01637-5","url":null,"abstract":"<p>The Amazon forest is fire sensitive, but, where fires were uncommon as a natural disturbance, deforestation and drought are accelerating fire occurrences, which threaten the integrity of the tropical forest, the carbon cycle and air quality. Fire emissions depend on fuel amount and type, moisture conditions and burning behaviour. Higher-resolution satellite data have helped more accurately map global burnt areas; however, the effects of fuels on the combustion process and on the composition of fire emissions remain uncertain in current fire emissions inventories. By using multiple Earth observation-based approaches, here we show that total fire emissions in the Amazon and Cerrado biomes are dominated by smouldering combustion of woody debris. The representation of woody debris and surface litter presents a critical uncertainty in fire emissions inventories and global vegetation models. For the fire season 1 August to 31 October 2020, for which all approaches are available, we found <span>(372^{605}_{277},mathrm{Tg})</span> (median and range across approaches) of dry matter burnt, corresponding to carbon monoxide emissions of <span>(39.1^{59}_{27},mathrm{Tg})</span>. Our results emphasize how Earth observation approaches for fuel and fire dynamics and of atmospheric trace gases reduce uncertainties of fire emission estimates. The findings enable diagnosing the representation of fuels, wildfire combustion and its effects on atmospheric composition and the carbon cycle in global vegetation–fire models.</p>","PeriodicalId":19053,"journal":{"name":"Nature Geoscience","volume":"38 1","pages":""},"PeriodicalIF":18.3,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143044122","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}

{"title":"CUG-STCN: A seabed topography classification framework based on knowledge graph-guided vision mamba network","authors":"Haoyi Wang, Weitao Chen, Xianju Li, Qianyong Liang, Xuwen Qin, Jun Li","doi":"10.1016/j.jag.2025.104383","DOIUrl":"https://doi.org/10.1016/j.jag.2025.104383","url":null,"abstract":"Multibeam sounding is a high-precision remote sensing method for seabed detection. Seabed topography classification is crucial for marine science research, resource exploration and engineering. When using multibeam data for seabed topography automatic classification, the fuzzy boundaries of different topographic entities, redundancy of multimodal data, and the lack of geological knowledge guidance have led to low classification accuracy. Thus, a knowledge graph-guided vision mamba seabed topography classification network (CUG-STCN) was constructed, consisting of three modules: (1) The long sequence modeling mamba-based encoder addresses the fuzzy seabed topography boundary. It uses 2D-selective-scan to create image blocks in different scanning directions. By combining with the selective state space model to capture long-range dependencies and ensure transmission of spatial context information while maintaining linear computational complexity. (2) The cross-modal information interaction and fusion module addresses the redundancy of multimodal information. By employing a bidirectional information interaction mechanism, it captures the correlations of seabed topography between different modalities and achieving feature fusion. (3) The seabed topography knowledge graph-guided semantic perception module guides the geological knowledge. It constructs seabed topography knowledge vectors through entity query and word embedding, using the similarity between vectors to create a similarity measurement matrix. It provides geological knowledge, enhancing the modeling capability of complex seabed topography relationship. CUG-STCN achieves OA of 90.11% and mIOU of 48.50%, outperforming six mainstream networks, which at most, achieve the OA and mIOU improvements of 5.37% and 14.18%. Notably, the application of CUG-STCN in other regions demonstrates its strong generalization performance.","PeriodicalId":50341,"journal":{"name":"International Journal of Applied Earth Observation and Geoinformation","volume":"530 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143050023","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}

{"title":"The Role of Secondary Recoil Leaders in the Formation of Subsequent Return Strokes","authors":"Ivan T. Cruz, Marcelo M. F. Saba, José Claudio O. Silva, Carina Schumann","doi":"10.1029/2024gl110492","DOIUrl":"https://doi.org/10.1029/2024gl110492","url":null,"abstract":"Recoil leaders develop in lightning flash decayed channels. The propagation of a recoil leader depends on the charges stored at its tip and the conductivity of the decayed channel. When the recoil leader propagates over the entire channel, a subsequent return stroke happens. Recoil leaders very often cease propagating before they reach the ground, that is, only part of the decayed channel is reionized. The present work aims to analyze the herein named secondary recoil leader that connect with the primary recoil leaders and cause them to start propagating again. We believe that the secondary recoil leader injects additional charge into the primary recoil leader, allowing the recoil leader reionize the whole decayed channel of the lightning flash. High-speed videos analysis of upward lightning flashes shows that secondary recoil leaders play an important role on the formation and progression of dart leaders/subsequent return strokes.","PeriodicalId":12523,"journal":{"name":"Geophysical Research Letters","volume":"174 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143050885","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}

{"title":"Influence of local (air temperature) and wide-scale (North Atlantic Oscillation) climate indices on the first arrival dates of the Common Wood Pigeon (Columba palumbus) at breeding site in SE Poland.","authors":"Krzysztof Bartoszek, Waldemar Biaduń, Dariusz Jakubas, Marek Nowosad, Agnieszka Sujak, Ignacy Kitowski","doi":"10.1007/s00484-025-02856-0","DOIUrl":"https://doi.org/10.1007/s00484-025-02856-0","url":null,"abstract":"<p><p>In this study, a relationship between climate indices (local - air temperatures, and wide-scale - North Atlantic Oscillation) and first arrival dates (FAD) of a short-distant migratory bird, the Common Wood Pigeon (Columba palumbus) at a breeding site in SE Poland (Lublin) was investigated. Temporal patterns of FAD on a multi-year scale (20 years within 39 years between 1982 and 2020) were also studied. Additionally, correlations between mean air temperature at Lublin and sites along the spring migration route with various distances from the breeding site and various time lags were searched for. A significant temporal trend in arrival dates was found, indicating the advancing of FADs by 9.5 days compared to the 1980s. It was found that FAD in the studied period was affected by North Atlantic Oscillation (NAO) in February and among daily indices by mean air temperature in Lublin 12 days and by NAO - 7 days before arrival. As expected, the highest correlation between air temperatures in Lublin and sites along the spring migration route of the studied population for locations < 500 km from Lublin and a few days' travel before arrival were found. Studying FADs and climatic indices in the breeding areas and en route of migration helps to understand factors affecting the phenology of spring avian migration.</p>","PeriodicalId":588,"journal":{"name":"International Journal of Biometeorology","volume":" ","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143051142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unusual and persistent easterlies restrained the 2023/24 El Niño development after a triple-dip La Niña","authors":"Ji-Won Kim, Baijun Tian, Jin-Yi Yu","doi":"10.1038/s41612-024-00890-0","DOIUrl":"https://doi.org/10.1038/s41612-024-00890-0","url":null,"abstract":"<p>The 2023/24 El Niño, emerging after a rare triple-dip La Niña, garnered global attention due to its potential to evolve into an extreme event, given the largest accumulation of warm water in the equatorial western Pacific since 1980. Despite initial expectations, its growth rate unexpectedly decelerated in mid-2023, preventing it from reaching the anticipated intensity. Here, we show through observational analyses that unusual easterly anomalies over the tropical western-central Pacific, persisting after the end of the preceding La Niña, significantly contributed to this slowdown. A prominent east‒west sea surface temperature gradient in the region has been identified as the crucial factor associated with these unusual and persistent easterly anomalies. This temperature gradient is directly attributed to a negative North Pacific Meridional Mode and a deepened thermocline over the Philippine Sea. These findings offer a deeper understanding of the atypical transition from a prolonged multi-year La Niña to an El Niño.</p>","PeriodicalId":19438,"journal":{"name":"npj Climate and Atmospheric Science","volume":"22 1","pages":""},"PeriodicalIF":9.0,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143044120","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}

{"title":"Estimation of the carbon sequestration potential of ecological retaining structures: A comparative study","authors":"Yuming Zhu, Fei Zhang, Junjun Ni, Shilin Jia","doi":"10.1016/j.geotexmem.2025.01.003","DOIUrl":"https://doi.org/10.1016/j.geotexmem.2025.01.003","url":null,"abstract":"In the pursuit of sustainable development, the environmental impacts of geotechnical engineering are often neglected. The utilization of geosynthetic-reinforced soil (GRS) and ecological slope protection technology presents promising and eco-friendly alternatives, paving the way for a cleaner future. In this study, the temporal and spatial distribution of the carbon coefficient (CC) and embodied energy coefficient (EEC) are characterized through data analysis. Subsequently, the impact of spatial factors on the total embodied carbon (TEC) is considered. Finally, the carbon sequestration effect of vegetation through photosynthesis is quantified to examine the long-term environmental impact of the selected design options. The findings suggest that embodied carbon (EC) is preferable as an indicator for environmental impact assessment. The GRS technology can effectively mitigate approximately one-third of the environmental impacts compared to conventional methods. Furthermore, when combined with vegetation, GRS technology can achieve net-zero emissions approximately 30 years after the construction of the ecological retaining structure. Although many factors are not considered in this study, the results may inform initial decisions to realize more sustainable infrastructure.","PeriodicalId":55096,"journal":{"name":"Geotextiles and Geomembranes","volume":"36 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143055324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling Cryosphere Dynamics by Distributed Acoustic Sensing and Data-Driven Hydro-Thermo Coupled Simulation","authors":"Haoyuan Sun, Feng Cheng, Jianghai Xia, Jianbo Guan, Zefeng Li, Jonathan B. Ajo-Franklin","doi":"10.1029/2024gl111188","DOIUrl":"https://doi.org/10.1029/2024gl111188","url":null,"abstract":"As global warming continues, the Earth's cryosphere is experiencing severe degradation. This study leverages a novel combination of distributed acoustic sensing (DAS) and artificial intelligence to monitor and decipher cryospheric dynamics. We have developed an advanced time-lapse surface wave analysis workflow to capture shear wave velocity changes &lt;span data-altimg=\"/cms/asset/271447fe-299d-4ebd-bc13-d06bf0581d3d/grl68843-math-0001.png\"&gt;&lt;/span&gt;&lt;mjx-container ctxtmenu_counter=\"108\" ctxtmenu_oldtabindex=\"1\" jax=\"CHTML\" role=\"application\" sre-explorer- style=\"font-size: 103%; position: relative;\" tabindex=\"0\"&gt;&lt;mjx-math aria-hidden=\"true\" location=\"graphic/grl68843-math-0001.png\"&gt;&lt;mjx-semantics&gt;&lt;mjx-mrow data-semantic-children=\"4\" data-semantic-content=\"0,5\" data-semantic- data-semantic-role=\"leftright\" data-semantic-speech=\"left parenthesis normal upper Delta v right parenthesis\" data-semantic-type=\"fenced\"&gt;&lt;mjx-mo data-semantic- data-semantic-operator=\"fenced\" data-semantic-parent=\"6\" data-semantic-role=\"open\" data-semantic-type=\"fence\" style=\"margin-left: 0.056em; margin-right: 0.056em;\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mo&gt;&lt;mjx-mrow data-semantic-annotation=\"clearspeak:simple;clearspeak:unit\" data-semantic-children=\"1,2\" data-semantic-content=\"3\" data-semantic- data-semantic-parent=\"6\" data-semantic-role=\"implicit\" data-semantic-type=\"infixop\"&gt;&lt;mjx-mi data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"normal\" data-semantic- data-semantic-parent=\"4\" data-semantic-role=\"greekletter\" data-semantic-type=\"identifier\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mi&gt;&lt;mjx-mo data-semantic-added=\"true\" data-semantic- data-semantic-operator=\"infixop,⁢\" data-semantic-parent=\"4\" data-semantic-role=\"multiplication\" data-semantic-type=\"operator\" style=\"margin-left: 0.056em; margin-right: 0.056em;\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mo&gt;&lt;mjx-mi data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"italic\" data-semantic- data-semantic-parent=\"4\" data-semantic-role=\"latinletter\" data-semantic-type=\"identifier\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mi&gt;&lt;/mjx-mrow&gt;&lt;mjx-mo data-semantic- data-semantic-operator=\"fenced\" data-semantic-parent=\"6\" data-semantic-role=\"close\" data-semantic-type=\"fence\" style=\"margin-left: 0.056em; margin-right: 0.056em;\"&gt;&lt;mjx-c&gt;&lt;/mjx-c&gt;&lt;/mjx-mo&gt;&lt;/mjx-mrow&gt;&lt;/mjx-semantics&gt;&lt;/mjx-math&gt;&lt;mjx-assistive-mml display=\"inline\" unselectable=\"on\"&gt;&lt;math altimg=\"urn:x-wiley:00948276:media:grl68843:grl68843-math-0001\" display=\"inline\" location=\"graphic/grl68843-math-0001.png\" xmlns=\"http://www.w3.org/1998/Math/MathML\"&gt;&lt;semantics&gt;&lt;mrow data-semantic-=\"\" data-semantic-children=\"4\" data-semantic-content=\"0,5\" data-semantic-role=\"leftright\" data-semantic-speech=\"left parenthesis normal upper Delta v right parenthesis\" data-semantic-type=\"fenced\"&gt;&lt;mo data-semantic-=\"\" data-semantic-operator=\"fenced\" data-semantic-parent=\"6\" data-semantic-role=\"open\" data-semantic-type=\"fence\" stretchy=\"false\"&gt;(&lt;/mo&gt;&lt;mrow data-semantic-=\"\" data-semantic-annotation=\"clearspeak:simple;clearspeak:unit\" data-semantic-chil","PeriodicalId":12523,"journal":{"name":"Geophysical Research Letters","volume":"59 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143044693","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}

{"title":"Frequency of Synoptic-Scale Precipitation Events Recorded by Daily Resolved δ18O of Land Snail Shells","authors":"Guozhen Wang, Jibao Dong, Qian Zhang, Sheng He, Chengcheng Liu, Fan Luo, Yana Jia, Xiulan Zong, Miaohong He, Tao Han, Gang Xue, Yang Li, John Dodson, Hong Yan","doi":"10.1029/2024gl112536","DOIUrl":"https://doi.org/10.1029/2024gl112536","url":null,"abstract":"Land snails exhibit the potential for capturing synoptic-scale precipitation events through the δ¹⁸O records of their shells (δ¹⁸O_shell), but the application is hindered by the absence of a practical methodology for tracking these events. Here, we developed a statistical methodology to track the synoptic-scale precipitation events from daily resolved snail body fluid δ¹⁸O (δ¹⁸O_BF) record. We further tested and verified our approach using daily resolved δ¹⁸O_shell records of modern <i>Cathaica fasciola</i> from the Chinese Loess Plateau (CLP). The reconstructed 3-day-timescale precipitation events frequencies using first derivations of δ¹⁸O_BF and δ¹⁸O_shell shows strong agreement with instrumental data (&gt;85% detection accuracy). The strong correlation between precipitation days in snail-growing-season and annual precipitation amounts across the CLP also permits the reconstruction of synoptical precipitation frequency for investigating the interannual variability of precipitation. Our study paves the avenue in paleoweather study, enabling quantitative reconstructions of past synoptic-scale precipitation events.","PeriodicalId":12523,"journal":{"name":"Geophysical Research Letters","volume":"48 1","pages":""},"PeriodicalIF":5.2,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143044337","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}