Arabian Journal of Geosciences最新文献

Placer gold provenance in the Bidou area, Nyong Complex (Cameroon): constraints from heavy mineral assemblage and alluvial gold microchemistry 喀麦隆尼永杂岩比都地区砂金物源：重矿物组合与冲积金微化学约束

IF 1.827

Arabian Journal of Geosciences Pub Date : 2026-10-17 DOI: 10.1007/s12517-026-12623-z

Brice Kamguia Woguia, Gus Djibril Kouankap Nono, Bertrand Kehding Fomekong, Nicoline Kibong Fontem, Alex Duclo Shanel Sepwouo Sawouo, Hermine Mvodo

{"title":"Placer gold provenance in the Bidou area, Nyong Complex (Cameroon): constraints from heavy mineral assemblage and alluvial gold microchemistry","authors":"Brice Kamguia Woguia, Gus Djibril Kouankap Nono, Bertrand Kehding Fomekong, Nicoline Kibong Fontem, Alex Duclo Shanel Sepwouo Sawouo, Hermine Mvodo","doi":"10.1007/s12517-026-12623-z","DOIUrl":"10.1007/s12517-026-12623-z","url":null,"abstract":"<div><p>The Bidou prospect is a mildly<b>‒</b>known gold district in the Nyong Complex (Cameroon) with active artisanal alluvial mining operations. There is limited and disputed research on the origin of this placer gold deposit. Integrated alluvial gold morphology and microchemistry, and bulk stream sediments geochemistry were investigated through combined scanning electron microscopy (SEM)‒energy dispersive spectrometry (EDS), electron microprobe analysis (EMPA) and inductively coupled plasma mass spectrometry (ICP‒MS) techniques respectively, to preliminarily decrypt the gold deposit type and prospective sources in the Bidou area. The heavy mineral assemblage in the stream sediments comprises rutile, ilmenite, ilmenorutile, zircon, garnet, kyanite, monazite and gold. The grains morphology ranges from angular, folded, hooked, elongated to sub<b>‒</b>rounded shapes, indicating limited transport distances and proximal source rocks. The gold grains are associated with primary quartz, pyrite, rutile, K‒feldspar and kyanite inclusions. The gold grains are characterized by extremely high Au (97.367 ‒ 100 wt%) and fineness (995 ‒ 1000) values, and low Ag (0 ‒ 0.502 wt%), Cu (0 ‒ 0.23 wt%) and Ni (0 ‒ 0.002 wt%) contents, within limited ranges, suggesting a homogeneous or limited primary sources. The gold composition, primary mineral inclusions and Ag<b>‒</b>Au<b>‒</b>Cu x 10 discrimination plot collectively suggest a potential primary hydrothermal‒orogenic (Archean lode) gold mineralization in the Bidou prospect. Quartz, pyrite and rutile inclusions, coupled with Cr and Ni in the gold could preliminarily imply a quartz‒sulphide vein‒type gold, potentially emplaced by the interaction between gold<b>‒</b>rich hot reducing hydrothermal ore fluids with mafic lithologies in the Bidou area.</p></div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"19 11","pages":""},"PeriodicalIF":1.827,"publicationDate":"2026-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamics and recurrence of fire in the Brazilian Cerrado: spatial patterns, land cover drivers, and implications for integrated fire management 巴西塞拉多地区火灾的动态和复发：空间模式、土地覆盖驱动因素和综合火灾管理的影响

IF 1.827

Arabian Journal of Geosciences Pub Date : 2026-10-17 DOI: 10.1007/s12517-026-12621-1

Alex Mota dos Santos, Carlos Fabricio Assunção da Silva, Fabrizia Gioppo Nunes, Gisele Daiane Pinha, Clayton Alexandre do Amaral

{"title":"Dynamics and recurrence of fire in the Brazilian Cerrado: spatial patterns, land cover drivers, and implications for integrated fire management","authors":"Alex Mota dos Santos, Carlos Fabricio Assunção da Silva, Fabrizia Gioppo Nunes, Gisele Daiane Pinha, Clayton Alexandre do Amaral","doi":"10.1007/s12517-026-12621-1","DOIUrl":"10.1007/s12517-026-12621-1","url":null,"abstract":"<div><p>Aims: This study analyzed the spatiotemporal distribution, interannual variability, and recurrence of burned areas across land-use and land-cover (LULC) classes in the Brazilian Cerrado from 2019 to 2024. The main objective was to evaluate how fire regimes interact with natural and human-modified landscapes to support territory-oriented management strategies. Methods: Using MapBiomas Fire (Col. 4.1) and LULC (Col. 10.1) datasets, we quantified burned proportions across LULC types using R (<i>terra</i> package) and QGIS. Statistical analyses included descriptive statistics, the non-parametric Mann-Kendall test for temporal trends, interannual variance, and pixel-based binary summation to map spatial fire recurrence. Results: Burned areas predominated in native vegetation: savannas (~ 52.8%) and wetlands (~ 19.5%), followed by grasslands (~ 9.1%), while forest formations and pasturelands each accounted for approximately 5.5% of the total burned area. Fire increased significantly in Soybean, Rice, Cotton, and Mosaics of Uses, with a sharp spike in 2024 for savannas and forests, coinciding with extreme dry-season thermal anomalies. High-recurrence hotspots were concentrated in ecotonal zones, particularly in the Ilha do Bananal and surrounding Indigenous Lands, driven by high fuel accumulation and anthropogenic ignitions. Conclusions: Fire in the Cerrado is structural but increasingly threatens fire-sensitive ecosystems like forests and wetlands. Mapping fire recurrence directly operationalizes Integrated Fire Management (IFM) by prioritizing early prescribed burns, optimizing firebreak and brigade placement, aligning intercultural burning calendars with indigenous communities, and establishing protection protocols for vulnerable habitats.</p></div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"19 11","pages":""},"PeriodicalIF":1.827,"publicationDate":"2026-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12517-026-12621-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149189838","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

Pollution status, ecological risk, and source apportionment of trace metals in shelf surface sediments off the southeast coast of India 印度东南海岸陆架表层沉积物中痕量金属污染现状、生态风险及来源分析

IF 1.827

Arabian Journal of Geosciences Pub Date : 2026-10-15 DOI: 10.1007/s12517-026-12614-0

Om Swaroop Mohanty, Senthil Nathan D, Sridharan M, Harikrishnan S

{"title":"Pollution status, ecological risk, and source apportionment of trace metals in shelf surface sediments off the southeast coast of India","authors":"Om Swaroop Mohanty, Senthil Nathan D, Sridharan M, Harikrishnan S","doi":"10.1007/s12517-026-12614-0","DOIUrl":"10.1007/s12517-026-12614-0","url":null,"abstract":"<div><p>Trace metal accumulation in marine sediments is a significant environmental concern due to their prolonged residence times, toxicity, and potential ecological impacts. This study investigated the distribution, pollution status, ecological risk, and source apportionment of trace metals in shelf surface sediments off the southeast coast of India. A set of 35 surface sediments was analysed for sediment texture, organic matter (OM), and concentrations of Fe, Cr, Co, Zn, Ni, Pb, Cd, Cu, Ba, V, and Mn. The sediments were predominantly muddy sand to slightly muddy sand in texture, and OM ranged from 1.05% to 2.65%. The minimum and maximum concentrations of Fe: 1.38–6.33 wt%, Cr (7.24-169.95 ppm), Co (2.79–29.64 ppm), Zn (2.85–44.89 ppm), Ni (13.17–53.74 ppm), Pb (12.20-38.25 ppm), Cd (0.22–4.10 ppm), Cu (22.04–80.48 ppm), Ba (18.71-567.15 ppm), V (15.87-121.39 ppm), and Mn (75.24-1239.49 ppm). Average concentrations of Pb, Cu, and Cd were higher than the upper continental crust (UCC) values. Various contamination indices (Contamination factor, degree of contamination, modified degree of contamination, and geoaccumulation index) indicate substantial Cd contamination, moderate Pb contamination, and no Cu contamination. Ecological risk indices further revealed that Cd posed an extremely high ecological risk, whereas Pb and Cu posed a moderate risk, and the remaining metals showed negligible risk. The Pollution Load Index (PLI) is < 1, indicating a baseline level of pollution. Pearson’s correlation revealed that fine-grained sediments primarily control metal concentrations, whereas OM exerted a secondary influence. However, three potential sources: lithogenic (54%), mixed lithogenic-anthropogenic (25%), and maritime-related activities (21%) were identified using principal component analysis with absolute principal component scores (PCA-APCS). The PCA findings are broadly consistent with Pearson’s correlation and Q-mode cluster analyses.</p></div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"19 11","pages":""},"PeriodicalIF":1.827,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149176707","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantifying wind-driven rain erosion: Splash distribution and transport rates in aggregated soils 量化风雨侵蚀：聚类土壤中的飞溅分布和传输速率

IF 1.827

Arabian Journal of Geosciences Pub Date : 2026-10-15 DOI: 10.1007/s12517-026-12615-z

Ruhollah Rezaei Arshad

{"title":"Quantifying wind-driven rain erosion: Splash distribution and transport rates in aggregated soils","authors":"Ruhollah Rezaei Arshad","doi":"10.1007/s12517-026-12615-z","DOIUrl":"10.1007/s12517-026-12615-z","url":null,"abstract":"<div><p>Wind-driven rain (WDR) is dominant agent of soil erosion in arid and semi-arid landscapes, yet the combined effects of wind velocity, rainfall intensity and soil aggregate size on splash and wash processes remain poorly quantified. This study investigated the spatial distribution and transport rates of splash and wash loads under controlled combinations of rainfall intensity (30, 50, and 75 mm h⁻¹) and wind velocity (6, 9, and 12 m s⁻¹) for three soil aggregate size classes (2, 4.75, and 8 mm) packed into a 35 × 100 cm soil pan. The results showed that wind significantly increased both the amount and travel distance of splashed particles, particularly at higher wind velocities. The splash load decreased exponentially with distance from the soil pan, from 234.65 to 0.4762 × 10⁻⁵ g m⁻¹ s⁻¹, with the rate of decline dependent on wind velocity. Similarly, the wash load increased with rising wind velocity and rainfall intensity, ranging from 2.329 to 23.52 × 10⁻² g m⁻¹ s⁻¹, with the highest erosion observed at wind speeds of 6–9 m s⁻¹. Overall, as wind velocity increased from 0 to 12 m s⁻¹, wash load rose by 266.47–436%, while splash load increased by 1,119–9,036.43%. demonstrating that splash load is substantially more sensitive to wind than wash load. These findings provide new quantitative insights into the synergistic effects of wind and rainfall on soil particle detachment and transport in aggregated soils of semi-arid regions. The results demonstrate that wind-driven rain markedly accelerates water erosion processes, highlighting the need for targeted soil conservation practices (such as residue retention and windbreaks) in landscapes where wind and rain frequently occur together.</p></div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"19 11","pages":""},"PeriodicalIF":1.827,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149176772","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Spatial dynamics of sediment mineralogy and geochemistry along the Vellar River-to-Coast Continuum, India 印度Vellar河-海岸连续体沉积物矿物学和地球化学的空间动力学

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Arabian Journal of Geosciences Pub Date : 2026-10-14 DOI: 10.1007/s12517-026-12618-w

Vaishnavi K, Monisha Balasubramaniyan, Yoganandan Veeran

{"title":"Spatial dynamics of sediment mineralogy and geochemistry along the Vellar River-to-Coast Continuum, India","authors":"Vaishnavi K, Monisha Balasubramaniyan, Yoganandan Veeran","doi":"10.1007/s12517-026-12618-w","DOIUrl":"10.1007/s12517-026-12618-w","url":null,"abstract":"<div><p>This study examines the mineralogical and geochemical features of sediment samples collected from the Vellar River, its Estuary, and nearby Coastal regions. By combining X-ray diffraction with chemical assays of Organic Carbon, Calcium Carbonate, and Phosphate, the study seeks to elucidate spatial variations in sediment composition, sources, and depositional processes throughout the River–Estuary–coastal system. The results show quartz as the most common mineral throughout, with specific secondary mineral groups characterising each environment. River and Estuarine sediments contain the highest levels of Organic Carbon, while Coastal sediments are abundantly rich in Calcium Carbonate. Phosphate distribution reveals a contrasting pattern, with significant enrichment observed in specific Riverine and Estuarine pockets rather than the open coast. This pattern reflects both natural biological activity and localised human influence. These findings offer insights into sediment transport mechanisms and emphasise the environmental dynamics influencing sedimentary regimes in tropical coastal systems.</p></div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"19 11","pages":""},"PeriodicalIF":1.827,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149176540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Seasonal lags and legacy effects on vegetation cover and carbon uptake in Kuwait from 2014 to 2024: A MODIS GPP–ET–NDVI analysis 2014 - 2024年科威特植被覆盖和碳吸收的季节滞后和遗留效应：MODIS GPP-ET-NDVI分析

IF 1.827

Arabian Journal of Geosciences Pub Date : 2026-10-14 DOI: 10.1007/s12517-026-12624-y

Shereen Nadoum

{"title":"Seasonal lags and legacy effects on vegetation cover and carbon uptake in Kuwait from 2014 to 2024: A MODIS GPP–ET–NDVI analysis","authors":"Shereen Nadoum","doi":"10.1007/s12517-026-12624-y","DOIUrl":"10.1007/s12517-026-12624-y","url":null,"abstract":"<div><p>Remote sensing provides a consistent framework for quantifying vegetation dynamics in hyper-arid environments where field observations are sparse. This study integrated MODIS-derived gross primary productivity (GPP), evapotranspiration (ET), and normalized difference vegetation index (NDVI) with GPM IMERG precipitation to evaluate seasonal variability, carbon–water coupling, rainfall-response lags, and cumulative hydroclimatic controls across Kuwait during 2014–2024. Vegetation activity peaked in spring, when mean GPP reached 2.25 ± 0.41 g C m⁻² d⁻¹ and NDVI 0.26 ± 0.05, compared with 0.92 ± 0.21 g C m⁻² d⁻¹ and 0.12 ± 0.03 in summer. ET was strongly associated with GPP (R² = 0.680, <i>p</i> < 0.001) and NDVI (R² = 0.533, <i>p</i> < 0.001), whereas same-month precipitation explained substantially less variation in GPP (R² = 0.189, <i>p</i> = 0.003) and NDVI (R² = 0.081, <i>p</i> = 0.061). Cross-correlation analysis showed that both vegetation indicators responded strongly when rainfall preceded vegetation activity by one month (GPP: <i>r</i> = 0.711; NDVI: <i>r</i> = 0.678; both <i>p</i> < 0.001), with the NDVI response persisting longer than GPP. At the cumulative interannual scale, ET remained significantly associated with GPP (R² = 0.524, <i>p</i> = 0.012) and NDVI (R² = 0.630, <i>p</i> = 0.004), whereas cumulative precipitation was not significant. These findings demonstrate that vegetation dynamics in Kuwait are better characterized by ecosystem water use and antecedent rainfall than by contemporaneous or cumulative precipitation alone, highlighting the importance of rainfall timing and short-term hydroclimatic legacy effects in hyper-arid ecosystems.</p></div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"19 11","pages":""},"PeriodicalIF":1.827,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12517-026-12624-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149176503","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

GIS and Analytical Hierarchy Process-based delineation of groundwater potential zones in Dharan Sub-Metropolitan City, eastern Nepal 基于GIS和层次分析法的尼泊尔东部达兰副大城市地下水潜势区圈定

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Arabian Journal of Geosciences Pub Date : 2026-10-13 DOI: 10.1007/s12517-026-12609-x

Bibash Dhakal, Andrea Petroselli

{"title":"GIS and Analytical Hierarchy Process-based delineation of groundwater potential zones in Dharan Sub-Metropolitan City, eastern Nepal","authors":"Bibash Dhakal, Andrea Petroselli","doi":"10.1007/s12517-026-12609-x","DOIUrl":"10.1007/s12517-026-12609-x","url":null,"abstract":"<div><p>Groundwater resources are increasingly important in rapidly urbanizing Sub-Himalayan foothill regions, where seasonal surface water shortages and complex terrain constrain reliable water supply. This study applies a Geographic Information System (GIS)-based Analytic Hierarchy Process (AHP) framework to delineate groundwater potential zones (GWPZs) in Dharan Sub-Metropolitan City, eastern Nepal. Nine thematic layers—including elevation, slope, curvature, drainage density, rainfall, land use/land cover, soil type, geology, and surface roughness—were integrated within a common GIS environment after preprocessing to a uniform spatial resolution of 12.5 m. Factor weights were derived using AHP (Consistency Ratio = 0.0157), and a weighted overlay analysis was used to generate the groundwater potential map. The resulting map classified the study area into five groundwater potential classes, with very high potential zones covering 24.54% of the area, primarily in the southern alluvial plains and forested recharge areas characterized by gentle slopes and permeable geological formations, whereas low-potential zones were concentrated in the northern Siwalik foothills. The incorporation of terrain-derived parameters, particularly curvature and surface roughness, provides a detailed representation of topographic controls on groundwater occurrence in this Sub-Himalayan urban environment. Although the generated groundwater potential map is consistent with the regional hydrogeological setting and previous studies, the absence of field-based validation data (e.g., borehole yields or groundwater level observations) represents a limitation of the present work. Nevertheless, the resulting map provides a useful spatial decision-support tool for groundwater exploration and water resource planning in data-scarce mountainous regions.</p></div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"19 11","pages":""},"PeriodicalIF":1.827,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149176600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mechanical properties and fracture characteristics of granite after heat treatment: Integrated experimental investigation 花岗岩热处理后力学性能与断裂特征：综合实验研究

IF 1.827

Arabian Journal of Geosciences Pub Date : 2026-10-13 DOI: 10.1007/s12517-026-12606-0

Jianqing Jiang, Zhicheng Liang, Shihong Hu

{"title":"Mechanical properties and fracture characteristics of granite after heat treatment: Integrated experimental investigation","authors":"Jianqing Jiang, Zhicheng Liang, Shihong Hu","doi":"10.1007/s12517-026-12606-0","DOIUrl":"10.1007/s12517-026-12606-0","url":null,"abstract":"<div><p>High-temperature exposure significantly alters the physical and mechanical properties of rock materials, inducing substantial changes in their deformation characteristics and failure mechanisms. This study presents a comprehensive investigation of the thermo-mechanical behavior of granite subjected to various high-temperature treatments under different stress conditions. Systematic experimental tests, including Brazilian split, uniaxial compression, and conventional triaxial compression, were conducted on granite specimens treated at temperatures ranging from room temperature to 300 ℃. The experimental results reveal a distinct temperature-dependent pattern in the mechanical response of granite. Under Brazilian split conditions, the tensile strength initially increases with heating temperature up to 50 ℃, beyond which a progressive decrease is observed. Similarly, the uniaxial compressive strength (UCS) exhibits a non-monotonic variation, reaching its maximum value at approximately 150 ℃ before declining at higher temperatures. Under conventional triaxial compression, the confining pressure significantly influences the temperature-strength relationship; as the minor principal stress increases from 0.5 MPa to 15 MPa, the critical temperature corresponding to peak strength shifts from 150 ℃ to approximately 300 ℃. The proportion of shear fractures was found to increase systematically with increasing treatment temperature, no matter whether the heated granite specimens are under Brazilian split or uniaxial compression. This research contributes to the fundamental understanding of the complex thermo-mechanical coupling effects in granite, which has significant implications for engineering applications involving elevated temperatures.</p></div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"19 11","pages":""},"PeriodicalIF":1.827,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149176381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Retraction Note: Combining UAV-LiDAR and UAV-photogrammetry for bridge assessment and infrastructure monitoring 注：结合无人机-激光雷达和无人机-摄影测量进行桥梁评估和基础设施监测

IF 1.827

Arabian Journal of Geosciences Pub Date : 2026-10-12 DOI: 10.1007/s12517-026-12620-2

Hany Abdel-Maksoud

引用次数: 0

Assessing the impact of climate change on wind energy potential in Brazil’s capitals: a long-term Weibull parameter analysis (1960–2020) 气候变化对巴西首都风能潜力的影响评估：长期威布尔参数分析（1960-2020）

IF 1.827

Arabian Journal of Geosciences Pub Date : 2026-10-03 DOI: 10.1007/s12517-026-12603-3

Amaury de Souza, Elias Silva de Medeiros, Ivana Pobocikova

{"title":"Assessing the impact of climate change on wind energy potential in Brazil’s capitals: a long-term Weibull parameter analysis (1960–2020)","authors":"Amaury de Souza, Elias Silva de Medeiros, Ivana Pobocikova","doi":"10.1007/s12517-026-12603-3","DOIUrl":"10.1007/s12517-026-12603-3","url":null,"abstract":"<div><p>Brazil’s vast territory and favorable wind conditions have positioned it as a global leader in wind energy development. Accurate assessment of wind resources is essential for the feasibility of wind farms, particularly in the context of climate change. This study analyzes wind speed data from 27 Brazilian capitals (1960–2020) obtained from the CRUA database, using the two-parameter Weibull distribution to estimate the shape (<i>k</i>) and scale (<i>c</i>) parameters. Performance was evaluated through root mean square error (RMSE), coefficient of determination (R²), and relative error (RE). Results show an average <i>c</i> value of 2.36 m/s and an average <i>k</i> value of 5.95, with R² averaging 0.9797, confirming the suitability of the Weibull method. Analysis of long-term trends revealed increases in wind energy density in 17 capitals (1–23%), decreases in 7 capitals (-6% to -0.2%), and stability in 2 capitals. Altitude was found to influence the Weibull parameters, with <i>k</i> increasing and <i>c</i> decreasing at higher elevations. Climate change impacts on wind potential in Brazil were found to be region-specific, reinforcing the need for localized adaptation strategies. These findings contribute to the optimization of wind energy planning and climate resilience policies.</p></div>","PeriodicalId":476,"journal":{"name":"Arabian Journal of Geosciences","volume":"19 10","pages":""},"PeriodicalIF":1.827,"publicationDate":"2026-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s12517-026-12603-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149132077","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