Aeolian Research最新文献

{"title":"Validation of a 10-meter wind in simulating a dust event in northwestern Iran mountains (October 28–31, 2017)","authors":"Elham Mobarak Hassan ,&nbsp;Mahnaz Karimkhani ,&nbsp;Noushin Khoddam ,&nbsp;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":"2025-09-19","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}

{"title":"Changes in aeolian saltation cloud properties with wind speed and ripples","authors":"Madeline M. Kelley ,&nbsp;Ian J. Walker ,&nbsp;Mark Schmeeckle ,&nbsp;Christy Swann ,&nbsp;Ron Dorn ,&nbsp;Micheala Roberts ,&nbsp;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":"2025-09-08","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}

{"title":"Arid Shrubland: A growing dust source?","authors":"Heleen C. Vos ,&nbsp;Emanuel Vogel ,&nbsp;Johanna R. von Holdt ,&nbsp;Wolfgang Fister ,&nbsp;Frank D. Eckardt ,&nbsp;Janine I. Gugger ,&nbsp;Eliane C. Hofstetter ,&nbsp;Nikolaus J. Kuhn","doi":"10.1016/j.aeolia.2025.100998","DOIUrl":"10.1016/j.aeolia.2025.100998","url":null,"abstract":"<div><div>The west coast of South Africa is an arid region that has been shown to be emissive, but its dust sources have never been studied in detail. In this study, we present a dataset of the Moderate Resolution Imaging Spectroradiometer (MODIS)-detected dust source points in this region from 2000 to 2021 and the surface characteristics of these points. The results elucidate that most dust source points are located on Succulent Karoo shrublands, mining areas, or bare areas. Furthermore, the data show a significant increase in dust source points, which could mainly be attributed to shrublands becoming more emissive as a response to a prolonged drought from 2017 onwards. The Normalised Difference Vegetation Index (NDVI), Modified Soil Adjusted Vegetation Index (MSAVI), and albedo-based roughness indication (ωns) of the study area confirmed a decrease in vegetation during this five-year drought. Understanding such tipping points for dust emissions as a result of drought and anthropogenic land use is relevant to understanding the future dust load.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"74 ","pages":"Article 100998"},"PeriodicalIF":3.4,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144911974","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":"The influence of foredune geometry on wind flow quantified from computational fluid dynamics simulations","authors":"Saeb Faraji Gargari,&nbsp;Derek Karssenberg,&nbsp;Gerben Ruessink","doi":"10.1016/j.aeolia.2025.101001","DOIUrl":"10.1016/j.aeolia.2025.101001","url":null,"abstract":"<div><div>Wind flow over a coastal foredune is driven by a complex interplay of dune geometry, sand transport, and vegetation dynamics. While previous studies have explored the influence of foredune geometry and wind direction on wind flow, their combined effects remain underexplored. This study employs 3D computational fluid dynamics to investigate the impact of foredune height, stoss slope, and incident wind direction on wind flow along the seaward side. Model accuracy was validated against field measurements, then used to simulate wind flow over an idealized foredune with varying heights and slopes across 11 wind directions. Results show that foredune height has the strongest influence on flow speed-up and directional deviations. The highest (25 m) and steepest (1:2) dune experiences the largest speed-up (12) under shore-normal winds, decreasing to 4 for a 1:4 slope and to 1 for alongshore winds. For a 6 m high foredune, speed-up remains around 2, dropping to 1 only for highly oblique winds. Angle deviations across the foredune peak at 30 to 60° wind incidence, and can be up to 20° at the dune toe and crest for the highest and steepest foredune in the simulations. This study demonstrates how combined dune geometry properties – specifically height and slope – along with the incident wind direction influence wind speed-up over foredunes. These findings improve our understanding of sand transport, coastal dune evolution, and artificial dune design, particularly in anticipation of future work that will couple wind flow models with sediment transport models to assess morphological changes under varying wind conditions.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"74 ","pages":"Article 101001"},"PeriodicalIF":3.4,"publicationDate":"2025-08-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144912196","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":"Off-season wind-induced soil erosion from potato fields under varying bedding preparations","authors":"Matt Ball ,&nbsp;Guillermo Hernandez-Ramirez ,&nbsp;Rezvan Karimi Dehkordi ,&nbsp;Willemijn Appels ,&nbsp;Sheng Li","doi":"10.1016/j.aeolia.2025.101000","DOIUrl":"10.1016/j.aeolia.2025.101000","url":null,"abstract":"<div><div>Annually, global soil erosion is estimated at 75 billion tonnes, costing approximately US$400 billion in lost agricultural productivity, highlighting the economic and environmental significance of effective soil management. Potato fields are particularly susceptible to wind erosion during the off-season, due to extensive soil exposure. In Southern Alberta, fall bedding is a common management practice, involving bedding preparation in the fall rather than spring. Fall bedding presents logistical and economic advantages to producers, but it may increase the risk of off-season wind erosion due to increased soil disturbance. To investigate this, wind erosion was measured using Modified Wilson and Cook (MWAC) samplers and modelled with the Wind Erosion Prediction System (WEPS) model across three off-seasons (2021–2024) at the Lethbridge Polytechnic Irrigation Demo Farm. Rates of wind-induced soil erosion were evaluated under three bedding types: spring bedding, spring bedding following a winter cover crop, and fall bedding. The measured and modelled rates indicate that fall bedding experienced the greatest rates of wind-induced erosion across all three off-season periods. On average, off-season wind-induced erosion under fall bedding was 20 times higher than that under both spring beddings. The study found that the WEPS model closely aligns with measured data, showing high model accuracy (R² = 0.9327, Nash–Sutcliffe efficiency (NSE) = 0.9058). Statistical analyses revealed significant differences in erosion rates across bedding types (P &lt; 0.05), with fall bedding consistently leading to higher erosion. The benefits of winter cover crops prior to spring bedding were less pronounced, suggesting that winter cover cropping may offer minimal additional erosion reduction compared to spring bedding alone when following a cereal crop. These findings advocate for the adoption of spring bedding to reduce off-season wind erosion and its associated economic and environmental costs. The results also underscore the importance of considering both economic and long-term sustainability when selecting bedding practices in potato cultivation.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"74 ","pages":"Article 101000"},"PeriodicalIF":3.4,"publicationDate":"2025-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144895175","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":"Field measurement of glyphosate and AMPA in the deposited sediment on the central-semiarid region of Argentina","authors":"F. Avecilla ,&nbsp;J.E. Panebianco ,&nbsp;L.A. de Oro ,&nbsp;V.C. Aparicio ,&nbsp;M.J. Mendez","doi":"10.1016/j.aeolia.2025.100999","DOIUrl":"10.1016/j.aeolia.2025.100999","url":null,"abstract":"<div><div>In the central semiarid region of Argentina (CSRA), agricultural soils coexist with remaining patches of native forest. Glyphosate is used on agricultural soils, but the presence of glyphosate and its main metabolite (aminomethylphosphonic acid, AMPA) in fallen dust have not been evaluated in the CSRA. The presence and concentration of glyphosate and AMPA were evaluated in the sediment collected in a forest patch (FR) and on a surrounding agricultural soil (AG) during 2021. Glyphosate and AMPA were detected in all samples of sediments on FR and AG. The concentration of glyphosate in the sediment ranged from 16.8 to 192.7 μg kg⁻¹ and the concentration of AMPA ranged from 31.9 to 210.3 μg kg⁻¹. Sediment deposited on AG showed a higher concentration of glyphosate and AMPA than that deposited on FR. The highest concentrations of glyphosate and AMPA were found in the second semester of the year (spring and early summer), when glyphosate is used intensively for weed control and wind erosion risk is higher. Our results show that the sediment generated by wind erosion, rural traffic and tillage could be a route for glyphosate and AMPA to enter into ecosystems and areas where the herbicide is not used.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"74 ","pages":"Article 100999"},"PeriodicalIF":3.4,"publicationDate":"2025-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144891997","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":"Provenance of sediments in a deep-sea core offshore Kangaroo Island spanning the last 125 ka","authors":"Jan-Berend W. Stuut ,&nbsp;Patrick De Deckker ,&nbsp;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":"2025-08-20","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}

{"title":"Enhancing wind erosion hazard assessment: a novel framework combining integrated land susceptibility to wind erosion (ILSWE) index and machine learning algorithms (case study: Saravan area, Southeast Iran)","authors":"Mojtaba Mohammadi ,&nbsp;Hamid Gholami ,&nbsp;Aliakbar Mohamadifar ,&nbsp;Yougui Song ,&nbsp;Dimitris Kaskaoutis","doi":"10.1016/j.aeolia.2025.100995","DOIUrl":"10.1016/j.aeolia.2025.100995","url":null,"abstract":"<div><div>Wind erosion poses a significant threat to arid and semi-arid ecosystems globally, particularly in the Middle East, a major source of dust emissions. Iran, with extensive arid and semi-arid landscapes, experiences substantial economic and ecological damage from wind erosion, exceeding <strong>US$18</strong> billion annually. This study developed a novel methodology for mapping wind erosion hazard in Saravan County, southeast Iran, addressing the critical need for accurate hazard assessment and targeted mitigation strategies. An initial wind erosion inventory map was created using the Integrated Land Susceptibility to Wind Erosion (ILSWE) model, incorporating various factors like climatic erosivity, soil erodibility, soil crust, vegetation cover, and surface roughness. This inventory was then used to train and validate three machine learning (ML) models (Bagged CART, Random Forest, and XGBoost). Model performance was evaluated using Receiver Operating Characteristic (ROC) curve analysis, with the Random Forest model achieving the highest accuracy (AUC = 0.95). Results indicated that 42.7 % of the study area is classified at high or very high hazard for wind erosion, primarily located in western Saravan, characterized by degraded rangelands with sparse vegetation. Key factors influencing wind erosion hazard included elevation, clay content, and calcium carbonate content. This research demonstrates the efficacy of integrating the ILSWE model with ML techniques for accurate mapping of wind erosion hazard, providing valuable information for prioritizing mitigation efforts and promoting sustainable land management practices in arid and semi-arid environments. The developed methodology offers a transferable framework for wind erosion assessment in other vulnerable regions worldwide.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"74 ","pages":"Article 100995"},"PeriodicalIF":3.4,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144842122","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":"Luminescence dating and the sedimentary pattern of loess on the Tibetan Plateau","authors":"Qiufang Chang ,&nbsp;Xiaodong Miao ,&nbsp;Xingjun Xie ,&nbsp;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 (&lt;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 (&gt;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":"2025-07-11","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}

{"title":"Origin and late pleistocene to early holocene activity of albany pine bush dune field, New York, northeastern USA","authors":"S.A. Wolfe ,&nbsp;D. Franzi ,&nbsp;B. Carl ,&nbsp;N. Ferguson ,&nbsp;B. Woronko ,&nbsp;D. Chmielowska-Michalak ,&nbsp;G. Pantoja ,&nbsp;M. Schaarschmidt ,&nbsp;O.B. Lian ,&nbsp;A. Gontz ,&nbsp;N. Gifford","doi":"10.1016/j.aeolia.2025.100992","DOIUrl":"10.1016/j.aeolia.2025.100992","url":null,"abstract":"<div><div>Well-preserved stabilized parabolic dunes occur in the Albany Pine Bush (APB), New York State, northeastern USA. This area was glaciated by the Laurentide Ice Sheet (LIS) and subsequently inundated by glacial Lake Albany until ∼ 13.0 ka. Glaciofluvial and glaciolacustrine deposits provided source sediments for dunes, which migrated towards the east-southeast. This integrated study addresses the morphology, grain mineralogy and micromorphology, stratigraphy, and chronology of a stabilized parabolic dune in the APB. The dune was active from 12.5–11.0 ka and was formed from locally-derived fluvial sediments that are slightly older (ca. 13.3–12.5 ka). The dune sands and underlying fluvial sediments are both texturally and mineralogically similar. Micromorphological analyses indicate that the dune quartz grains exhibit few characteristics typical of eolian transport, but inherently retain features of subaqueous origin. Consequently, both the distance and the duration of eolian transport during dune construction were very short. Dune stabilization coincided with the end of the Younger Dryas coeval with a forest transition from spruce (<em>Picea</em>) to pine-oak (<em>Pinus-Quercus</em>). The well-preserved morphology of dunes, and an absence of paleosols and stratigraphic truncations, all support dune stability throughout the Holocene, even with recurrent wildfire to which the local ecology has adapted.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"74 ","pages":"Article 100992"},"PeriodicalIF":3.1,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144588064","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}