Aeolian Research最新文献_第2页

A high-accuracy stacking model for automatic identification of aeolian saltating tracks in high-speed pictures 一种用于高速图像中风成跳跃轨迹自动识别的高精度叠加模型

IF 3.4 3区地球科学

Aeolian Research Pub Date : 2026-03-01 Epub Date: 2026-01-09 DOI: 10.1016/j.aeolia.2026.101031

Mengjie Pu , Fanmin Mei , Chuan Lin , Mingjun Sui , Hongda Chen , Shenyang He , Weikai Wang , Chang Zhou , Jin Su , Jinguang Chen

{"title":"A high-accuracy stacking model for automatic identification of aeolian saltating tracks in high-speed pictures","authors":"Mengjie Pu , Fanmin Mei , Chuan Lin , Mingjun Sui , Hongda Chen , Shenyang He , Weikai Wang , Chang Zhou , Jin Su , Jinguang Chen","doi":"10.1016/j.aeolia.2026.101031","DOIUrl":"10.1016/j.aeolia.2026.101031","url":null,"abstract":"<div><div>While automatic track identification in high-speed images is essential for scaling up the analysis of aeolian saltation, published individual machine learning models lack the necessary generalization capabilities, primarily due to the scarcity of large-scale training datasets. To enhance the generalization of machine learning models in saltating track recognition, we established a representative dataset with more than 10,000 tracks, more variables for characterizing track features, and a balanced proportion of true and false tracks using the Synthetic Minority Over-sampling Technique (SMOTE). Furthermore, we propose a stacking model for the automatic classification of saltating tracks, which consists of Categorical Boosting (CatBoost), Extra Trees (ET), Light Gradient Boosting Machine (LGBM), and eXtreme Gradient Boosting (XGBoost) as the base models, along with the Random Forest (RF) as the <em>meta</em>-learner. Leveraging the comprehensive D5<em>fs</em> dataset, our stacking model attains state-of-the-art performance with an accuracy of ∼ 0.93 and an area under the receiver operating characteristic curve (AUC) of ∼ 0.98, confirming its robustness and exceptional generalization performance compared to individual ensemble models. Our study not only establishes a robust and interpretable machine-learning framework for the automatic detection of saltating tracks but also provides a potent tool for the classification of incident, rebound, and ejected trajectories. Ultimately, this work paves the way for a deeper understanding of saltation dynamics leveraging massive datasets.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"75 ","pages":"Article 101031"},"PeriodicalIF":3.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145925619","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}

引用次数: 0

Feature contributions and predictive modeling of aeolian sand transport detection in the atmospheric surface layer 大气表层风沙输运探测的特征贡献与预测模型

IF 3.4 3区地球科学

Aeolian Research Pub Date : 2026-03-01 Epub Date: 2026-02-18 DOI: 10.1016/j.aeolia.2026.101037

Sai Li , Wenyong Ma , Junxiang Ma , Zhibo Zhang , Kang Yang

{"title":"Feature contributions and predictive modeling of aeolian sand transport detection in the atmospheric surface layer","authors":"Sai Li , Wenyong Ma , Junxiang Ma , Zhibo Zhang , Kang Yang","doi":"10.1016/j.aeolia.2026.101037","DOIUrl":"10.1016/j.aeolia.2026.101037","url":null,"abstract":"<div><div>Predicting aeolian sand transport in the atmospheric surface layer (ASL) is difficult because turbulence-driven intermittency produces hysteresis and burst-like saltation. This study develops an interpretable machine learning framework for aeolian transport event detection using high-frequency wind and saltation flux measurements. The analysis compares raw velocity components, first-order statistics, fluctuation velocities, and second-moment derivatives including friction velocity (<em>u</em><sub>∗</sub>) and turbulence intensity (TI). Model performance was benchmarked across averaging windows and heights and interpreted using SHapley Additive exPlanations (SHAP) to quantify the contribution of individual features to model predictions. Streamwise velocity emerged as the strongest predictor, with importance peaking near the surface and reemerging aloft where reduced dissipation provided cleaner signals. Rolling-window aggregates of first-order statistics achieved superior accuracy to raw inputs and the Time Frequency Equivalence Method, with optimal performance at a 30 s window that matched the velocity decorrelation timescale. Fluctuation velocities alone yielded poor results but enhanced predictive skill when combined with first-order statistics, with sweeps and outward interactions dominating saltation initiation. Models based on <em>u</em><sub>∗</sub> and TI achieved comparable accuracy but required longer windows (300 s), and SHAP analysis indicated that features derived from near-surface winds, including <em>u</em><sub>∗</sub> and TI as well as fluctuation components, ranked highest in importance. Overall, the framework improves predictive accuracy beyond traditional methods, preserves physical interpretability, and offers valuable insights for feature selection, measurement strategies, and atmospheric monitoring of aeolian processes.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"75 ","pages":"Article 101037"},"PeriodicalIF":3.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147395452","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}

引用次数: 0

Effect of relative humidity on the lifting of charged sand grains in an electric field 电场中相对湿度对带电沙粒抬升的影响

IF 3.4 3区地球科学

Aeolian Research Pub Date : 2026-03-01 Epub Date: 2026-01-21 DOI: 10.1016/j.aeolia.2026.101033

Qiang Ma , Danyang Liu , Li Xie

{"title":"Effect of relative humidity on the lifting of charged sand grains in an electric field","authors":"Qiang Ma , Danyang Liu , Li Xie","doi":"10.1016/j.aeolia.2026.101033","DOIUrl":"10.1016/j.aeolia.2026.101033","url":null,"abstract":"<div><div>In this paper, laboratory experiments of sand grains lifted by an electric field at different relative humidities were carried out. The electric field threshold, <em>E</em><sub>th</sub>, which is the lowest electric field that can lift sand grains in a relative humidity range of 10% to 80%, was experimentally obtained. The experimental results show that <em>E</em><sub>th</sub> decreases with increasing relative humidity for the given grain size, while it remains a constant when the relative humidity exceeds 60%. Based on the kinematics, it can be concluded that the inter-grain bonding forces exhibit the same trend in the relative humidity. An empirical formula of <em>E</em><sub>th</sub> is proposed, which is a function of the sand size and the relative humidity. By the trajectory image processing method, the charges of the lifted sand grains induced by the electric field were measured. It was found that the charges carried by an individual sand grain are independent of the relative humidity, and an empirical formula for the charges carried by an individual sand grain lifted by electrostatic force was obtained. The experimental method used in this paper is reproducible, and can be applied to investigate the dependence of charging characteristics and inter-grain bonding forces of other grains on relative humidity.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"75 ","pages":"Article 101033"},"PeriodicalIF":3.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146038056","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}

引用次数: 0

Aligning loess with marine and lacustrine sedimentary record around 22.2 cal. kyr B.P. to explore the rapidity of atmospheric circulation change caused by the advance of the Eurasian ice-sheet cover 结合22.2 cal.kyr B.P.前后的海相和湖相沉积记录，探讨欧亚冰盖推进引起的大气环流变化的快速性

IF 3.4 3区地球科学

Aeolian Research Pub Date : 2026-03-01 Epub Date: 2026-01-22 DOI: 10.1016/j.aeolia.2026.101034

Jerzy Nawrocki , Olga Rosowiecka , Tomasz Werner

{"title":"Aligning loess with marine and lacustrine sedimentary record around 22.2 cal. kyr B.P. to explore the rapidity of atmospheric circulation change caused by the advance of the Eurasian ice-sheet cover","authors":"Jerzy Nawrocki , Olga Rosowiecka , Tomasz Werner","doi":"10.1016/j.aeolia.2026.101034","DOIUrl":"10.1016/j.aeolia.2026.101034","url":null,"abstract":"<div><div>To create credible time frames for two MIS2 loess sections in Central-Eastern Europe, the palaeosecular variation of geomagnetic field curves were elaborated and correlated with existing data from marine and lake sediments. They are benefiting from a more accurate geochronology and continuous sedimentation in water sediments compared to those in the loess. Previous research on the anisotropy of magnetic susceptibility in the loess of Central-Eastern Europe revealed a rapid transition from southern to northern katabatic winds approximately 22–22.7 kyr ago, coinciding with the advance of the Scandinavian Ice Sheet. Our new results indicate that at the Jarosław site, which is separated from the glacier foreland by a morphological ridge and located roughly 300 km from the ice sheet front, this change occurred within a span of no more than 30 years. In an open area, not surrounded by significant elevations, the onset of northern katabatic winds was preceded by a phase of intermediate winds that followed the southern winds, lasting about 110 years at the Korshiv “A” site. The northern winds began blowing approximately 22.2 cal. kyr B.P. in both localities. The beginning of the preceding southern winds aligns well with the end of Heinrich Stadial 2.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"75 ","pages":"Article 101034"},"PeriodicalIF":3.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146038057","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}

引用次数: 0

The origin of loess microstructure: 3D insights from initial aeolian dust packing 黄土微观结构的起源：从初始风沙堆积的三维洞察

IF 3.4 3区地球科学

Aeolian Research Pub Date : 2026-03-01 Epub Date: 2025-12-30 DOI: 10.1016/j.aeolia.2025.101029

Weiwei Zhang , Yanrong Li , Jianguo Zheng , Yongtang Yu , Xin Huang , Jianmin Zhu

{"title":"The origin of loess microstructure: 3D insights from initial aeolian dust packing","authors":"Weiwei Zhang , Yanrong Li , Jianguo Zheng , Yongtang Yu , Xin Huang , Jianmin Zhu","doi":"10.1016/j.aeolia.2025.101029","DOIUrl":"10.1016/j.aeolia.2025.101029","url":null,"abstract":"<div><div>Aeolian deposition is fundamental to the formation of the porous structure of present-day loess. However, the true initial packing structure of loess dust remains poorly understood. In this study, we reconstructed initial loess deposits by simulating the dust deposition process, using Malan loess, which is compositionally analogous to ancient dust, as the raw material. The microstructure of the simulated deposits was characterised using micro-computed tomography (μ-CT) scanning and compared with that of natural Malan loess. The results indicate that the initial loess deposits possessed an exceptionally loose particle packing, with void ratios ranging from 2.79 to 3.75. Loose clay or silt–clay aggregates formed extensively due to inter-particle forces (such as van der Waals force and electrostatic attraction) during deposition. These aggregates, along with isolated detrital particles, acted as the primary skeletal components. Surface clays on skeletal particles play a critical role in bonding adjacent particles, which is essential for establishing and stabilising the loose framework. Notably, the initial deposits with an intermediate clay content (23%) among the samples studied exhibited the loosest microstructure, featuring chain-like particle packing and abundant large overhead pores. The initially loose aggregates and open packings compact over geological time while retaining structural inheritance, resulting in the reduced but partially preserved pore space that shapes the microstructure of present-day loess. This study provides the first direct 3D visualisation and quantification of the initial particle-scale microstructure, offering a key reference for understanding subsequent post-depositional processes and associated geomechanical properties.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"75 ","pages":"Article 101029"},"PeriodicalIF":3.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145884227","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}

引用次数: 0

A dynamically consistent model for dust-devil-like flows 沙尘暴样气流的动态一致模型

IF 3.4 3区地球科学

Aeolian Research Pub Date : 2026-03-01 Epub Date: 2026-01-03 DOI: 10.1016/j.aeolia.2025.101030

Sanjay Kumar Pandey, Kriti Yadav

{"title":"A dynamically consistent model for dust-devil-like flows","authors":"Sanjay Kumar Pandey, Kriti Yadav","doi":"10.1016/j.aeolia.2025.101030","DOIUrl":"10.1016/j.aeolia.2025.101030","url":null,"abstract":"<div><div>A generalized analytical model for dust devils with a central low-pressure core is presented in this work. The model incorporates a modified stream function that enables the flow field to satisfy physically relevant boundary conditions and capture essential vortex features, including finiteness of width and off-axis velocity maxima. All three velocity components — radial, axial, and azimuthal — are derived for steady, incompressible, and axisymmetric inviscid flows. An adjustable shape parameter allows the model to flexibly represent varying vortex intensities and core sharpness. Analytical expressions for velocity and pressure distribution are obtained and analysed. The structure predicted from the model is consistent with field observations, including transition from inflow to outflow with height, decay of rotational motion aloft, and confinement of the vortex within a finite periphery. Comparisons with classical vortex models highlight the improved physical realism of the present formulation. Inside the low-pressure core, the radial and azimuthal velocities reverse the direction relative to the outer flow (though vanishing small in magnitude), ensuring they vanish at the core interface and the axis as well.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"75 ","pages":"Article 101030"},"PeriodicalIF":3.4,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145884226","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}

引用次数: 0

Changes in aeolian saltation cloud properties with wind speed and ripples 风成跃迁云特性随风速和波纹的变化

IF 3.4 3区地球科学

Aeolian Research Pub Date : 2025-12-01 Epub Date: 2025-09-08 DOI: 10.1016/j.aeolia.2025.100996

Madeline M. Kelley , Ian J. Walker , Mark Schmeeckle , Christy Swann , Ron Dorn , Micheala Roberts , Patrick O’Brien

{"title":"Changes in aeolian saltation cloud properties with wind speed and ripples","authors":"Madeline M. Kelley , Ian J. Walker , Mark Schmeeckle , Christy Swann , Ron Dorn , Micheala Roberts , Patrick O’Brien","doi":"10.1016/j.aeolia.2025.100996","DOIUrl":"10.1016/j.aeolia.2025.100996","url":null,"abstract":"<div><div>Aeolian sediment transport shapes landscapes on Earth and other planetary surfaces, yet key uncertainties remain in how the near-bed saltation cloud responds to changing wind and surface conditions. Leveraging recent advances in image-based particle tracking, we conducted wind tunnel experiments using high-speed imaging and Particle Tracking Velocimetry to quantify sand grain trajectories in saturated saltation clouds over both flat and rippled beds. Our open-source PTV workflow resolved particle motions within millimeters of the bed across a range of wind speeds. Supporting previous results, we find that mean particle velocities do not scale linearly with wind speed; instead, changes in particle velocity distributions—including skewness and kurtosis—emerge as wind strength and sediment flux increase. At higher transport rates, distinctions among saltation, reptation, and creep within the particle distribution become more smoothed, suggesting a continuum spectrum of particle behavior rather than discrete transport modes. Our new dataset of particle trajectories over an active rippled bed shows distinctions in particle speed across the aspects. On ripple stoss slopes, fast saltating grains co-occur with slow creeping particles, while lee slopes are depleted of slower grains, consistent with shadowing effects. These observations support a feedback between ripple morphology and near-bed particle trajectories, with implications for how splash events redistribute sediment momentum. This study contributes new high-resolution empirical data that illuminate how saltation cloud structure evolves with wind forcing and bedform development, advancing our understanding of aeolian sediment transport under complex, dynamic conditions.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"74 ","pages":"Article 100996"},"PeriodicalIF":3.4,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145018967","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}

引用次数: 0

Luminescence dating and the sedimentary pattern of loess on the Tibetan Plateau 青藏高原黄土的发光测年与沉积模式

IF 3.1 3区地球科学

Aeolian Research Pub Date : 2025-12-01 Epub Date: 2025-07-11 DOI: 10.1016/j.aeolia.2025.100994

Qiufang Chang , Xiaodong Miao , Xingjun Xie , Zhongping Lai

{"title":"Luminescence dating and the sedimentary pattern of loess on the Tibetan Plateau","authors":"Qiufang Chang , Xiaodong Miao , Xingjun Xie , Zhongping Lai","doi":"10.1016/j.aeolia.2025.100994","DOIUrl":"10.1016/j.aeolia.2025.100994","url":null,"abstract":"<div><div>Aeolian sediments in the Tibetan Plateau are important records for climate change and atmospheric circulation. Previous studies suggested that the interior Tibetan loess accumulated mostly in the Holocene (<11.7 ka) marked by warming and wetting climate with an increased vegetation cover, thereby facilitating dust entrapment, and that this Tibetan dust accumulation model is different from that of the Chinese Loess Plateau (CLP). In longer time scales (>11.7 ka), did Tibetan loess deposited in warm/wet period as well? To answer this question, we presented 23 loess luminescence ages from five aeolian deposit profiles in the central Tibetan Plateau covering a large area. The results demonstrate loess deposition at around 30 ka and 75 ka, corresponding to warm and wet marine isotope stage (MIS) 3 and 5. In contrast, in the MIS 2 and 4, little to no loess was detected. Thus, we conclude that Tibetan loess accumulated mainly during warm/wet periods in the orbital time scale, and vegetation cover played a key role on loess accumulation and subsequent ecological system. This study sheds light on the Tibetan Plateau dust and loess research, and further provides basic scientific data for comprehensive understanding of the TP ecosystem for sustainable development.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"74 ","pages":"Article 100994"},"PeriodicalIF":3.1,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597483","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}

引用次数: 0

Provenance of sediments in a deep-sea core offshore Kangaroo Island spanning the last 125 ka 袋鼠岛近125 ka深海岩心沉积物的物源

IF 3.4 3区地球科学

Aeolian Research Pub Date : 2025-12-01 Epub Date: 2025-08-20 DOI: 10.1016/j.aeolia.2025.100997

Jan-Berend W. Stuut , Patrick De Deckker , Rick Hennekam

{"title":"Provenance of sediments in a deep-sea core offshore Kangaroo Island spanning the last 125 ka","authors":"Jan-Berend W. Stuut , Patrick De Deckker , Rick Hennekam","doi":"10.1016/j.aeolia.2025.100997","DOIUrl":"10.1016/j.aeolia.2025.100997","url":null,"abstract":"<div><div>It is common practice nowadays to assess the presence of terrigenous (land-derived) sediments in deep-sea cores using bulk geochemical data, but the key issue is to identify the source of these sediments and the way they were transported to the core site in order to interpret their palaeoclimatic significance. Here, we demonstrate a new approach taken to geochemically-fingerprint a large set of sediments collected from potential source areas (PSAs) in southeastern and southcentral Australia and to compare these data with the record obtained from X-ray Fluorescence (XRF) scanning on a long deep-sea sediment core MD03-2607 obtained offshore Kangaroo Island, South Australia. The entire data set of samples collected on land as well as the downcore measurements were unmixed using the numerical end-member method AnalySize. We successfully use the elements Al, Fe, K, Mn, S, Sr and Y to define end members. In addition, the on-land occurrences of the chemical ratios of Zr/Zn, Ti/Rb, Ti/Y and Zr/Rb are used to support the provenance of the chemical end-members. Three main PSA’s are defined: Murray River Basin (MRB), Darling River Basin (DRB) and Kati Thanda – Lake Eyre District (LED), of which the MRB is represented in two different chemical end members. The downcore contributions of these end members in the sediment core are consequently interpreted in terms of fluvial (MRB and DRB) versus aeolian (LED) input. We determined the origin of the terrigenous sediments recovered from the core for the last glacial-interglacial cycle, with implications for atmospheric circulation across southern Australia.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"74 ","pages":"Article 100997"},"PeriodicalIF":3.4,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144865268","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}

引用次数: 0

Validation of a 10-meter wind in simulating a dust event in northwestern Iran mountains (October 28–31, 2017) 10米风在伊朗西北部山区沙尘事件模拟中的验证（2017年10月28-31日）

IF 3.4 3区地球科学

Aeolian Research Pub Date : 2025-12-01 Epub Date: 2025-09-19 DOI: 10.1016/j.aeolia.2025.101002

Elham Mobarak Hassan , Mahnaz Karimkhani , Noushin Khoddam , Jeff Sepehri

{"title":"Validation of a 10-meter wind in simulating a dust event in northwestern Iran mountains (October 28–31, 2017)","authors":"Elham Mobarak Hassan , Mahnaz Karimkhani , Noushin Khoddam , Jeff Sepehri","doi":"10.1016/j.aeolia.2025.101002","DOIUrl":"10.1016/j.aeolia.2025.101002","url":null,"abstract":"<div><div>This study evaluates the performance of the WRF-Chem model in simulating near-surface winds in Northwest Iran, a region prone to dust events due to its high mountains and diverse structures. Using data from October 28 to 31, 2017, the study first examines dust conditions through visibility and satellite images. The model’s accuracy in simulating 10-meter wind speed and direction in three nested with the MYJ and YSU boundary layer schemes is then assessed against observational data. Results indicate that the primary source of dust on October 29 was desert areas in Iraq and northern Saudi Arabia, with the dust mass transported to Northwest Iran. The study observes the highest intensity and duration of the dust moving from southwest to northeast within the area. The WRF-Chem model shows good performance in simulating wind speed and direction, with the MYJ scheme performing better than YSU in a selected dust case in northern west of Iran. The study also highlights that while improving resolution enhances station altitude values, it alone does not significantly improve model results. In this case, the utilization of a two-way ANOVA revealed that the boundary layer affects the accuracy of 10-meter wind speed estimation at different stations. These findings underscore the importance of considering boundary layer schemes and mountain characteristics in improving the accuracy of models simulating wind patterns in mountainous regions. The WRF-Chem model adequately simulates wind direction in this region, especially when the dominant wind direction at a station falls within a specific geographical dominant sector.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"74 ","pages":"Article 101002"},"PeriodicalIF":3.4,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104640","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}

引用次数: 0