Earth and Space Science最新文献_第7页

Analysis and Accuracy Assessment of a New Global Nearshore ICESat-2 Bathymetric Data Product 一种新的全球近岸ICESat-2测深数据产品的分析与精度评估

IF 2.6 3区地球科学

Earth and Space Science Pub Date : 2025-08-08 DOI: 10.1029/2025EA004391

Christopher E. Parrish, Lori A. Magruder, Jeff Perry, Matthew Holwill, J. P. Swinski, Keana Kief

{"title":"Analysis and Accuracy Assessment of a New Global Nearshore ICESat-2 Bathymetric Data Product","authors":"Christopher E. Parrish, Lori A. Magruder, Jeff Perry, Matthew Holwill, J. P. Swinski, Keana Kief","doi":"10.1029/2025EA004391","DOIUrl":"10.1029/2025EA004391","url":null,"abstract":"Although designed primarily for cryospheric science objectives, NASA's ICESat-2 satellite, which launched in 2018, quickly became recognized as the world's first spaceborne bathymetric lidar. Initially, there was no dedicated bathymetric data product for the mission, so researchers interested in using ICESat-2 bathymetry developed their own custom bathymetric signal extraction and correction algorithms. To address this product lack, in 2022, our study team began work on a new, dedicated ICESat-2 coastal and nearshore bathymetric data product, ATL24. Following the development and testing of the algorithms, ICESat-2 bathymetry was processed for the entire globe from the start of the mission in 2018 through present day, through a 13-day processing run. The goals of this study were twofold. First, we sought to leverage the global, full-mission processing run to compute and analyze metrics that provide insight into the global data set, ICESat-2's overall bathymetric mapping capabilities, and parameters that impact bathymetric measurement performance. Second, we assessed the accuracy of the ATL24 data product through comparison to higher-accuracy independent reference data at eight different sites with widely ranging seafloor morphologies and depth ranges. Collectively, the results of these two study phases are anticipated to assist researchers and practitioners in understanding ICESat-2's bathymetric mapping capabilities and in evaluating the utility of ATL24 for specific science and application use cases. We highlight this analysis through consideration of two example use cases. Finally, we conclude with a look ahead to anticipated future ATL24 enhancements and recommendations for ongoing science.","PeriodicalId":54286,"journal":{"name":"Earth and Space Science","volume":"12 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2025EA004391","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Resolution of SWOT Altimetry: Improvements Along Continental Margins SWOT测高的解析：沿大陆边缘的改进

IF 2.6 3区地球科学

Earth and Space Science Pub Date : 2025-08-07 DOI: 10.1029/2025EA004312

D. V. P. Krishna, K. M. Sreejith

{"title":"Resolution of SWOT Altimetry: Improvements Along Continental Margins","authors":"D. V. P. Krishna, K. M. Sreejith","doi":"10.1029/2025EA004312","DOIUrl":"10.1029/2025EA004312","url":null,"abstract":"The along-track sea surface slopes (SSS) computed from the Surface Water and Ocean Topography (SWOT) measurements are extremely important in the retrieval of high-resolution global marine gravity anomalies. We estimate the spatial resolution of SWOT measurements and assess the inherent improvements offered by wide-swath altimetry over 12 sites representing the continental margins of the Pacific, the Atlantic and the Indian Oceans. We perform power and cross-spectral analysis on pair of along-track SSS profiles to determine the noise limit and resolution. Individual SWOT cycles can deliver SSS with a spatial resolution of ∼10–20 km along the continental margins. We further average 54 cycles of along-track SSS data at each site into pairs of SWOT stacks. Stacking reduces the ocean dynamics by an order of magnitude, even in the areas dominated by strong oceanographic variability and improves the resolution to ∼5–10 km. The spatial resolution determined from SWOT stacks offers a two-fold improvement compared to the short-wavelength resolution estimated from nadir altimetry along the continental margins. The study suggests that SWOT measurements would substantially improve the resolution of altimeter-derived marine gravity over global continental margins.","PeriodicalId":54286,"journal":{"name":"Earth and Space Science","volume":"12 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2025EA004312","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Reply to “The Correspondence of Earthquakes and Faults” by C. Scholz 对C. Scholz的《地震与断层的对应关系》的答复

IF 2.6 3区地球科学

Earth and Space Science Pub Date : 2025-08-07 DOI: 10.1029/2025EA004484

Xiaoyu Zou, Yuri Fialko

{"title":"Reply to “The Correspondence of Earthquakes and Faults” by C. Scholz","authors":"Xiaoyu Zou, Yuri Fialko","doi":"10.1029/2025EA004484","DOIUrl":"10.1029/2025EA004484","url":null,"abstract":"Zou and Fialko (2024a), https://doi.org/10.1029/2024ea003824 analyzed the fault length statistics using several data sets spanning a wide range of length scales from millimeters to tens of kilometers, and concluded that the cumulative fault length distribution follows a universal power law with an exponent close to −2, implying that small faults can accommodate an appreciable fraction of tectonic strain. C. Scholz wrote a Comment in which he agrees with the main conclusions of our study, but questions the methodology that “fortuitously” gave rise to a correct answer. In particular, Scholz suggests that there is a spurious correlation in our estimation of the slope of a composite data set, which cancels out due to a lower-dimensional sampling bias. Here we show that our estimated absolute value of the power law exponent of <math>\u0000 <semantics>\u0000 <mrow>\u0000 <mo>∼</mo>\u0000 <mn>2</mn>\u0000 </mrow>\u0000 <annotation> ${sim} 2$</annotation>\u0000 </semantics></math> is not a result of normalizing the fault length-frequency distribution by the map area, as suggested by Scholz. We also maintain that the lower-dimensional bias is likely to decrease the estimated value of the power law exponent, but not by as much as 1 unit, so that the strain energy in the crust hosting the fault population remains finite. Estimating the magnitude of the lower dimensional bias for realistic fault distributions is important for distinguishing between the “inclusive correspondence” between faults and earthquakes, as proposed by Scholz in his Comment, and similar but distinct distributions of active and inactive faults, as proposed by Zou and Fialko (2024a), https://doi.org/10.1029/2024ea003824. This issue also directly bears on the amount of inelastic strain absorbed by small faults in developing shear zones.","PeriodicalId":54286,"journal":{"name":"Earth and Space Science","volume":"12 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2025EA004484","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

The Correspondence of Earthquakes and Faults 地震与断层的对应关系

IF 2.6 3区地球科学

Earth and Space Science Pub Date : 2025-08-07 DOI: 10.1029/2025EA004217

Christopher H. Scholz

{"title":"The Correspondence of Earthquakes and Faults","authors":"Christopher H. Scholz","doi":"10.1029/2025EA004217","DOIUrl":"10.1029/2025EA004217","url":null,"abstract":"A compilation of many data sets indicates that the exponents α for the cumulative length distribution N(L) = CL−α, of small faults of L < T, the brittle thickness, and for large faults of L > T, are both approximately 2. The same result was found by Zou and Fialko (2024, https://doi.org/10.1029/2024ea003824), but that was fortuitous: their finding being contingent on two compensating errors. If α is 2 for both distributions, it indicates that the exponent B of the cumulative moment distribution N(Mg) = cMg−B is −2/3 for small faults and −1 for large faults, the same values as found for small and large earthquakes. The moment release rates obtained from both earthquake and fault data have also been found to correspond. This demonstrates that in continental regions the long-assumed correspondence between earthquakes and faults is inclusive. All tectonic earthquakes must occur on faults and faults must slip predominately in earthquakes. The relative contribution of small earthquakes/faults to strain is minor for a single large fault over the recurrence time of the fault-rupturing earthquake because that case is governed by the characteristic earthquake model. In contrast, over a larger region containing many moderate sized faults, for which the Gutenberg–Richter distribution holds, the relative contribution of small earthquakes/faults to strain may be significant. These different behaviors characterize mature smooth versus immature segmented fault systems.","PeriodicalId":54286,"journal":{"name":"Earth and Space Science","volume":"12 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2025EA004217","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145135283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Implications of Fracture Networks in Elastic Response of Heterogeneous Carbonate Reservoirs 裂缝网络在非均质碳酸盐岩储层弹性响应中的意义

IF 2.6 3区地球科学

Earth and Space Science Pub Date : 2025-08-03 DOI: 10.1029/2024EA003941

Ghasem Aghli, Reza Gholami, Mohammad Reza Saberi, Mohammad Nikbin, Tahura Ahsani, Hem Bahadur Motra, Mehdi Ostadhassan

{"title":"Implications of Fracture Networks in Elastic Response of Heterogeneous Carbonate Reservoirs","authors":"Ghasem Aghli, Reza Gholami, Mohammad Reza Saberi, Mohammad Nikbin, Tahura Ahsani, Hem Bahadur Motra, Mehdi Ostadhassan","doi":"10.1029/2024EA003941","DOIUrl":"10.1029/2024EA003941","url":null,"abstract":"In this research, we explored how various fracture parameters could influence the elastic response of heterogeneous carbonates. Herein, 16 core plugs from a fractured carbonate formation are subjected to a comprehensive analysis including CT-scanning, optical and electron microscopy, and XRD analysis to identify and characterize open fractures and their corresponding features. Subsequently, these samples underwent hydrostatic compression under reservoir conditions, during which ultrasonic wave velocities and strain were continuously measured while confining pressure was gradually increased to 65 MPa, pore pressure remained constant at zero, and temperature at 90°C. Our findings revealed that the presence of open fractures would cause a reduction in both compressional and shear wave velocities while causing strain variations. The extent of these changes, however, is notably influenced by fracture parameters, particularly connectivity, dip, and aperture. Furthermore, the study showed that the influence of stylolites and solution seams is the secondary influential factor, primarily impacting the P-wave and increasing the strain. This research suggests that the impact of structural features, especially fractures, supersedes the role of porosity percentage in controlling the elastic properties of carbonate rocks. Furthermore, it was concluded that when fractures form a network, they exert a more pronounced impact on the elastic response compared to their isolated existence. This observation confirms that detection of fractures should be supplemented with a detailed assessment of their parameters. Collectively, this study provides valuable insights into how distinct fracture parameters would improve our interpretation of carbonate reservoirs elastic response, with a particular focus on wave velocities.","PeriodicalId":54286,"journal":{"name":"Earth and Space Science","volume":"12 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024EA003941","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144767797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Joint Extraction Method for Spatial Relations in Chinese Geological Texts 中文地质文本空间关系的联合提取方法

IF 2.6 3区地球科学

Earth and Space Science Pub Date : 2025-08-02 DOI: 10.1029/2025EA004335

Chuan Chen, Xiuguo Liu, Weihua Hua, Xinling Zeng, Zihan Cao, Peng Li, Chunyu Qi, Yu Huang, Jiameng Chen, Wencheng Wei

{"title":"Joint Extraction Method for Spatial Relations in Chinese Geological Texts","authors":"Chuan Chen, Xiuguo Liu, Weihua Hua, Xinling Zeng, Zihan Cao, Peng Li, Chunyu Qi, Yu Huang, Jiameng Chen, Wencheng Wei","doi":"10.1029/2025EA004335","DOIUrl":"10.1029/2025EA004335","url":null,"abstract":"Extracting spatial relations of geological entities is an important prerequisite for achieving natural language processing tasks such as geological knowledge question answering and semantic search, and is an important means to achieve structural reconstruction of unstructured geological data. Geological survey reports are standardized records and representations of geological work results. Geologists have accumulated a large amount of results data in their long-term work practice, which contains rich geological entity attribute information and spatial information. This paper uses regional geological survey reports as data sources to construct a Chinese geological entity spatial relationship corpus and proposes a joint extraction model (GeoESRJE) for geological entity spatial relations. This method regards the two subtasks of entity recognition and relationship extraction as a sequence labeling task, realizes mutual promotion between subtasks, reduces error propagation and information loss, and improves the ability to extract geological entity spatial relations. The spatial relations in the corpus are divided into three categories (topological relations, absolute direction relations, and relative direction relations) and 22 subcategories. We used the test data set to validate the proposed model, and compared with mainstream models, GeoESRJE showed improvements across various evaluation metrics, confirming the effectiveness of the proposed method. Based on the test results, we constructed a knowledge graph of spatial relationships extracted from different themes. By providing a detailed description of these spatial relationships, we laid an important foundation for the mining and analysis of geological knowledge.","PeriodicalId":54286,"journal":{"name":"Earth and Space Science","volume":"12 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2025EA004335","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144758668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Dominant Longitudinal Wave-1 Pattern of the Equatorial Topside Ionosphere in the Early Morning Sector 赤道上层电离层清晨区优势纵波-1型

IF 2.6 3区地球科学

Earth and Space Science Pub Date : 2025-08-02 DOI: 10.1029/2025EA004392

Yiding Chen, Libo Liu, Huijun Le, Ruilong Zhang

{"title":"Dominant Longitudinal Wave-1 Pattern of the Equatorial Topside Ionosphere in the Early Morning Sector","authors":"Yiding Chen, Libo Liu, Huijun Le, Ruilong Zhang","doi":"10.1029/2025EA004392","DOIUrl":"10.1029/2025EA004392","url":null,"abstract":"The low-latitude ionosphere has complex longitude structures under the effects of various space environment factors such as non-migrating tides and the geomagnetic field. In this study, a distinctive wave-1 dominated longitude pattern occurring in the early morning sector was revealed from the ROCSAT-1 observation for the low-latitude topside ionosphere. This longitude pattern consists of a primary structure near 210°–240°E and a secondary structure near 60°–90°E, both characterized by enhanced ion density (Ni) and weakened ion temperature (Ti) around the dip equator. It steadily appears in all seasons at different solar activity levels, differing from the daytime longitude variation that is dominated by seasonally dependent wave-4 and wave-3. This longitude pattern is not a continuation of nighttime longitude structure; it forms at early morning hours as a result of larger Ni increment and Ti decrement induced by equatorial upward O+ transport at those longitudes. Equatorial Ni and Ti longitude variations turn to be anti-correlated as this longitude pattern appears. Longitude variation of the equatorial vertical plasma drift, which is dominated by strong longitudinal wave-1 accompanying with weaker wave-2 in the early morning sector, is responsible for this longitude pattern. Especially, the difference in the turning time of equatorial vertical plasma drift from downward to upward reaches ∼2 hr at different longitudes. Interestingly, the strong wave-1 in the early morning sector likely has different drivers from those of daytime wave-1, which are dominated by the non-migrating tides SW1 and SW3; wave-wave interaction is a possibility.","PeriodicalId":54286,"journal":{"name":"Earth and Space Science","volume":"12 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2025EA004392","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144758667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Analysis, Testing, and Design of a UHF and HF Peer-to-Peer Communication System for the Europan Cryosphere 欧罗巴冰冻圈超高频和高频点对点通信系统的分析、测试和设计

IF 2.6 3区地球科学

Earth and Space Science Pub Date : 2025-08-02 DOI: 10.1029/2025EA004358

Jake Sahli, Albin J. Gasiewski, William C. Stone, Brian Pease, Veronica Guerrero, Vickie Siegel, Justin Smith

{"title":"Analysis, Testing, and Design of a UHF and HF Peer-to-Peer Communication System for the Europan Cryosphere","authors":"Jake Sahli, Albin J. Gasiewski, William C. Stone, Brian Pease, Veronica Guerrero, Vickie Siegel, Justin Smith","doi":"10.1029/2025EA004358","DOIUrl":"10.1029/2025EA004358","url":null,"abstract":"This study presents a validated design of a dual-band wireless relay system of “pucks” for through-ice communication between a cryobot and a surface lander during a future exploration of the Europan cryosphere. The design of a terrestrial demonstration system and the results of a 103 m through-ice system test in a relevant environment near Longyearbyen, Svalbard are presented. A radiative transfer model of the Europan cryosphere is applied to evaluate the anticipated performance of the notional Europan relay system. The proposed relay communication system utilizes a circularly polarized patch antenna with dielectric cover layer for use in an upper UHF band, and a crossed ferrite-loaded loop antenna for use in a lower HF band. A sub-surface radiative transfer model for Europa is used to extrapolate the performance of the terrestrial demonstration system in the cryogenic outer conductive and mushy inner convective cryosphere layers. The extrapolation considers the number of pucks and deployment strategy required to achieve reliable communication with the cryobot at the sub-surface ocean interface and the size, weight, and power (SWaP) requirements of those pucks. It is found that the link budgets of the puck pairs is attenuation dominated and highly affected by Europan ice salt fraction. The UHF/HF puck system is found to be suitable within the outer conductive cryosphere, but the SWaP of a UHF/HF puck system used to penetrate the inner convective cryosphere is high enough to warrant use of complementary communication methods.","PeriodicalId":54286,"journal":{"name":"Earth and Space Science","volume":"12 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2025EA004358","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144758559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

A Denoising Method for Salt and Pepper Noise in Remote Sensing Based on Swin-Transformer Convolution U-Net and Filtering—FSCU-Net 基于旋转变压器卷积U-Net和滤波fscu - net的遥感椒盐噪声去噪方法

IF 2.6 3区地球科学

Earth and Space Science Pub Date : 2025-07-31 DOI: 10.1029/2025EA004225

R. T. Cai, G. X. Chen, J. Li, R. S. Du, H. Y. Lu, Y. L. Qi, J. X. Chen

{"title":"A Denoising Method for Salt and Pepper Noise in Remote Sensing Based on Swin-Transformer Convolution U-Net and Filtering—FSCU-Net","authors":"R. T. Cai, G. X. Chen, J. Li, R. S. Du, H. Y. Lu, Y. L. Qi, J. X. Chen","doi":"10.1029/2025EA004225","DOIUrl":"10.1029/2025EA004225","url":null,"abstract":"Remote sensing imagery has become an indispensable tool for cost-effectively capturing extensive geospatial data across diverse applications. However, this technology remains fundamentally susceptible to noise contamination. Salt and pepper noise is one of the common issues that can significantly impair image quality and hinder subsequent processing tasks. While numerous methods have been proposed to mitigate this noise, many traditional techniques result in the loss of critical image detail. Recent advances in deep learning-based denoising approaches have shown considerable promise in addressing this challenge. A notable framework is based on using the Swin-Transformer Convolution U-Net, which effectively integrates Swin-Transformer and convolutional layers to enhance salt and pepper noise removal while minimizing signal loss. However, denoising performance may decline under high noise density conditions, leading to visible color discrepancies. To overcome this limitation, we introduce FSCU-Net, a hybrid approach that combines traditional denoising techniques with deep learning methods. FSCU-Net employs cyclic switching mean filtering for initial noise reduction, followed by a Swin-Transformer Convolution U-Net for further processing. As a novel architecture in computational imaging, FSCU-Net establishes the integration framework combining cyclic switching mean filters with Swin-Transformer modules. This approach embodies a paradigm shift from conventional physics-based denoising methodologies by its exclusive reliance on data-driven learning mechanisms unconstrained by prior physical models. Notably, the adopted filtering operations serve solely as preliminary quality enhancement components prior to feature extraction. Experimental results demonstrate that FSCU-Net significantly improves the denoising performance and reduces the color discrepancies in the presence of high-density salt and pepper noise.","PeriodicalId":54286,"journal":{"name":"Earth and Space Science","volume":"12 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2025EA004225","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144740400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Sinking Airports: A Glance at the State of US Transport Infrastructure 下沉的机场：美国交通基础设施状况一览

IF 2.6 3区地球科学

Earth and Space Science Pub Date : 2025-07-28 DOI: 10.1029/2025EA004433

Oluwaseyi Dasho, Manoochehr Shirzaei

{"title":"Sinking Airports: A Glance at the State of US Transport Infrastructure","authors":"Oluwaseyi Dasho, Manoochehr Shirzaei","doi":"10.1029/2025EA004433","DOIUrl":"10.1029/2025EA004433","url":null,"abstract":"Land subsidence poses a growing challenge to the operational safety and structural integrity of global air transport infrastructure. This study assesses the impact of differential land subsidence on airport runways using cutting-edge Interferometric Synthetic Aperture Radar (InSAR) data across 15 major U.S. airports, providing an estimate of potential foundational damage caused by settlement due to natural and anthropogenic factors. Our findings show San Francisco International Airport experiences the fastest subsidence rate of 9.2 ± 0.2 mm/year, while Los Angeles International Airport has the slowest subsidence rate of 2.0 ± 0.2 mm/year. While 96.1% of runway areas fall under low damage risk, 3.9% are at medium to very-high (VH) risk, with 3.5 million m2 exposed to subsidence rates exceeding 5 mm/year and 13,950 m2 classified as being at high to VH damage risk. Although no accidents have been directly linked to subsidence, increasing maintenance costs underscore the need for proactive monitoring. InSAR provides a near real-time, cost-effective solution for detecting infrastructure vulnerabilities, offering a non-intrusive approach to enhancing airport resilience and operational safety.","PeriodicalId":54286,"journal":{"name":"Earth and Space Science","volume":"12 8","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2025EA004433","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144716728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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