Aeolian Research最新文献

筛选
英文 中文
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 : 2025-07-11 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 ,&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}
引用次数: 0
Origin and late pleistocene to early holocene activity of albany pine bush dune field, New York, northeastern USA 美国东北部纽约奥尔巴尼松丛沙丘场的起源及晚更新世至全新世早期的活动
IF 3.1 3区 地球科学
Aeolian Research Pub Date : 2025-07-09 DOI: 10.1016/j.aeolia.2025.100992
S.A. Wolfe , D. Franzi , B. Carl , N. Ferguson , B. Woronko , D. Chmielowska-Michalak , G. Pantoja , M. Schaarschmidt , O.B. Lian , A. Gontz , N. Gifford
{"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}
引用次数: 0
Grain size analysis and sedimentological characteristics of wind-blown sands: a case study of Barchan dunes in the Erg of Tabas, central Iran 风沙粒度分析及沉积学特征——以伊朗中部塔巴什厄格Barchan沙丘为例
IF 3.1 3区 地球科学
Aeolian Research Pub Date : 2025-07-03 DOI: 10.1016/j.aeolia.2025.100993
Haniyeh Ghayeni , Mohammad Khanehbad , Alireza Rashki
{"title":"Grain size analysis and sedimentological characteristics of wind-blown sands: a case study of Barchan dunes in the Erg of Tabas, central Iran","authors":"Haniyeh Ghayeni ,&nbsp;Mohammad Khanehbad ,&nbsp;Alireza Rashki","doi":"10.1016/j.aeolia.2025.100993","DOIUrl":"10.1016/j.aeolia.2025.100993","url":null,"abstract":"<div><div>The current study investigates the geological characteristics and wind-driven dynamics of barchan dunes in arid regions. We analyzed the depositional processes and particle size distribution of eight dunes located approximately one kilometer apart. The results indicate that silt (0.80 %), medium sand (8.67 %), coarse sand (1.34 %), and very fine sand (18.32 %) are less common than fine sand (69.55 %). Key grain-size statistics indicate that aeolian sediments are fine-grained and well-sorted, with a mean particle size of 2.64 ϕ, sorting value of 0.51 ϕ, skewness of −0.05, and kurtosis of 1.26. The grain size classification indicates a complex depositional history, with aeolian origin accounting for around 87.3 % and river characteristics for only about 12 %. Leeward slopes and bottom areas tend to deposit finer, better-sorted sediments and typically contain coarser, less-sorted material than windward slopes and crests because gravity settles and influences wind movement. Long-term wind measurements (1986–2024) indicate that the principal southeastward drift vectors are continuous northwesterly winds (RDD = 159.04°) and considerable sand transport (DP = 45.25 VU). A transitional aeolian regime, as indicated by the Sand Mobility Index (0.59), promotes the development of semi-stable barchan dunes with both unidirectional and multidirectional wind impacts. These results illustrate the intricate connections between dune formation, sediment supply, and wind regime. These findings highlight the complex relationships that exist between wind regimes, sediment availability, and dune formation. By integrating extensive sedimentological research with long-term meteorological monitoring, this study provides new insights into the dynamics of aeolian systems and a practical framework for predicting dune evolution.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"74 ","pages":"Article 100993"},"PeriodicalIF":3.1,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144549189","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
Simulation of aerodynamic entrainment of sand particles on an up-sloping bed using the discrete element method 用离散元法模拟上斜坡床上沙粒的气动夹带
IF 3.1 3区 地球科学
Aeolian Research Pub Date : 2025-06-09 DOI: 10.1016/j.aeolia.2025.100979
Xiaolan Yu , Zhengshi Wang , Shuming Jia
{"title":"Simulation of aerodynamic entrainment of sand particles on an up-sloping bed using the discrete element method","authors":"Xiaolan Yu ,&nbsp;Zhengshi Wang ,&nbsp;Shuming Jia","doi":"10.1016/j.aeolia.2025.100979","DOIUrl":"10.1016/j.aeolia.2025.100979","url":null,"abstract":"<div><div>Aeolian sediment transport is the main cause of natural disasters such as dust storms and land degradation in arid and semi-arid regions, with aerodynamic entrainment being a key physical process. While most studies on aerodynamic entrainment focus on flat beds, the aerodynamic entrainment of sand particles on sloping beds remains underexplored. In this study, models of sand beds sloping at angles ranging from 0° to 20° were developed using the discrete element method, and the aerodynamic entrainment process on these beds was simulated. The results indicate that the inhibitory effect on aerodynamic entrainment increases considerably with slope angle. Compared to those for flat beds, the threshold friction velocity and response time of aerodynamic entrainment on sloping beds increase by approximately 50%, while the entrainment rate decreases by almost 90% at a slope angle of 20°. From a particle motion perspective, sand particles on a sloping bed require more energy to detach from the bed, resulting in an increase of almost 55% in rolling distance and number of collisions compared to that for a flat bed. In this study, an aerodynamic entrainment scheme for sloping beds was proposed, enhancing the understanding of wind-blown sand movement in real terrains and improving prediction accuracy.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"74 ","pages":"Article 100979"},"PeriodicalIF":3.1,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144241856","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
Holocene aeolian dune-paleosol record at the Fuegian steppe: assessment of interglacial climate and environmental variability at the southernmost tip of Patagonia (Isla Grande de Tierra del Fuego) 火地岛大草原全新世风成沙丘-古土壤记录:巴塔哥尼亚最南端间冰期气候和环境变率的评估
IF 3.1 3区 地球科学
Aeolian Research Pub Date : 2025-05-25 DOI: 10.1016/j.aeolia.2025.100978
Adriana Mehl , Andrea Coronato , Ramiro López
{"title":"Holocene aeolian dune-paleosol record at the Fuegian steppe: assessment of interglacial climate and environmental variability at the southernmost tip of Patagonia (Isla Grande de Tierra del Fuego)","authors":"Adriana Mehl ,&nbsp;Andrea Coronato ,&nbsp;Ramiro López","doi":"10.1016/j.aeolia.2025.100978","DOIUrl":"10.1016/j.aeolia.2025.100978","url":null,"abstract":"<div><div>Late Quaternary aeolian dune-paleosol sedimentary successions in perched dunes at the Fuegian steppe (northern Isla Grande de Tierra del Fuego, Patagonia) offer valuable insights into the Holocene climatic and environmental variability of southernmost South America, on the Southern Hemisphere westerly winds belt. Using morphological and geochemical data from eight paleosols interbedded in the aeolian units of a perched dune related to the ephemeral, shallow Laguna Arturo lake (53°43′ S, 68°18′ W), we assessed Holocene soil formation. The morphological characteristics and CIA index of the paleosols indicate poor to moderate weathering, with very limited hydrolysis and leaching mostly due to the subhumid climatic regime of the Fuegian steppe. Despite this, pedogenesis led to the formation of discrete paleosols after the Late Glacial. Oxidation is a conspicuous process in the Lateglacial-Early Holocene and early Middle Holocene paleosols of the succession. The poor pedological structure of paleosols from the late Middle Holocene, along with the aeolian deposits rate of sedimentation, records more likely arid conditions in southern Patagonia, a pattern consistent with other multi-proxy records in the region. The Late Holocene paleosols record slightly higher CIA indices and characteristics compatible with a higher moisture in the environment compared to the Middle Holocene. The studied dune-paleosol succession documents relatively short soil formation intervals, possibly linked to increased humidity in the Fuegian steppe due to short-term climate variability since around 12,800 cal yrs. BP, related to the dynamics of the Southern Hemisphere westerly winds.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"73 ","pages":"Article 100978"},"PeriodicalIF":3.1,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144130948","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
Exploring the atmospheric and ecological impacts of a major dust storm: Insights from WRF–Chem simulations 探索大沙尘暴对大气和生态的影响:来自WRF-Chem模拟的见解
IF 3.1 3区 地球科学
Aeolian Research Pub Date : 2025-05-14 DOI: 10.1016/j.aeolia.2025.100977
Hongwei Yang, Wenxuan Fu
{"title":"Exploring the atmospheric and ecological impacts of a major dust storm: Insights from WRF–Chem simulations","authors":"Hongwei Yang,&nbsp;Wenxuan Fu","doi":"10.1016/j.aeolia.2025.100977","DOIUrl":"10.1016/j.aeolia.2025.100977","url":null,"abstract":"<div><div>Sand and dust storm (SDS) is disastrous weather phenomenon on a global scale. Previous studies have demonstrated that SDS significantly affects weather, air quality, and human health. However, the interaction between SDS and ecological systems has previously been underexplored. In this study, we aim to elucidate the impact mechanisms of SDS on vegetation dynamics. We employed Weather Research and Forecast (WRF) model with Chemistry (WRF–Chem) to investigate the severe SDS in East Asia in May 2017. Our results reveal that the WRF–Chem model reasonably reproduced the large scale eastward movement of the SDS caused by the Mongolia cyclone in multiple aspects. SDS decreased downward shortwave (SW) radiation at surface (DSWS) and increased longwave radiation at the surface, causing non-uniform spatiotemporal changes in skin temperature (SKT) determined by the local surface energy balance. Crucially, SDS detrimentally impacted gross primary production (GPP) during the critical germination phases, with reductions in GPP exceeding 10% in certain areas. The total reductions were −20.17 kt, −81.55 kt, and −218.88 kt, respectively for May 2, 3, and 4 over the domain. Changes in GPP were attributed to variations in SKT and DSWS, as determined by calculating the partial correlation coefficients (PCC). The sensitivity, magnitude, and direction of GPP variation due to SKT and DSWS were influenced by altitude, which inherently affects radiation levels. These variations were further modulated by local conditions, including moisture availability. Our study illuminates the interaction between SDS and ecological systems, a subject that has been poorly understood.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"73 ","pages":"Article 100977"},"PeriodicalIF":3.1,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143942186","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
Climate changes revealed from the aeolian sediments in the Menyuan Basin, northeastern Qinghai-Tibet Plateau 青藏高原东北部门源盆地风成沉积物的气候变化特征
IF 3.1 3区 地球科学
Aeolian Research Pub Date : 2025-05-05 DOI: 10.1016/j.aeolia.2025.100976
Yunkun Shi , Chongyi E , Zhaokang Zhang , Qiang Peng , Jing Zhang , Yongjuan Sun , Jiawei Wang
{"title":"Climate changes revealed from the aeolian sediments in the Menyuan Basin, northeastern Qinghai-Tibet Plateau","authors":"Yunkun Shi ,&nbsp;Chongyi E ,&nbsp;Zhaokang Zhang ,&nbsp;Qiang Peng ,&nbsp;Jing Zhang ,&nbsp;Yongjuan Sun ,&nbsp;Jiawei Wang","doi":"10.1016/j.aeolia.2025.100976","DOIUrl":"10.1016/j.aeolia.2025.100976","url":null,"abstract":"<div><div>Aeolian sediments are a crucial component of Earth’s surface and serve as a significant terrestrial climate archive. The Menyuan Basin is a sensitive region for the interaction between the monsoons and Westerlies in the northeastern Qinghai-Tibet Plateau, where loess is extensively distributed, rendering it an ideal area for investigating climatic processes. In this study, climate changes in the Menyuan Basin since 40 ka are reconstructed using proxy records and luminescence dating obtained from the Yahecun profile. Our results show that the Menyuan Basin experienced a dry and cold climate from 40 to 16 ka, a continuous increase in moisture and temperature from 16 to 4.4 ka, and a relatively mild climate since 4.4 ka. The temperature variations in the Menyuan Basin are primarily driven by solar insolation; after 6 ka, the increase in the greenhouse gas concentrations contributed to higher temperatures. Precipitation in the region is governed by changes in the Westerlies and monsoons. During the glacial period, the summer monsoon weakened, and the transport of westerly water vapor decreased, resulting in reduced precipitation in the Menyuan Basin. Following the glacial period, an intensified summer monsoon and increased westerly water vapor transport collectively led to heightened precipitation. After 5 ka, the strengthening of the Westerlies likely sustained high precipitation in the Menyuan Basin. The intensity of winter monsoons in the Menyuan Basin is influenced by high-latitude insolation, with reduced high-latitude insolation after 6 ka leading to enhanced winter monsoons.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"73 ","pages":"Article 100976"},"PeriodicalIF":3.1,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143903726","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
Dust transport pathways from the Mesopotamian Marshes 来自美索不达米亚沼泽的尘埃运输路径
IF 3.1 3区 地球科学
Aeolian Research Pub Date : 2025-04-24 DOI: 10.1016/j.aeolia.2025.100975
Hesam Salmabadi , Mohsen Saeedi , Michael Notaro , Alexandre Roy
{"title":"Dust transport pathways from the Mesopotamian Marshes","authors":"Hesam Salmabadi ,&nbsp;Mohsen Saeedi ,&nbsp;Michael Notaro ,&nbsp;Alexandre Roy","doi":"10.1016/j.aeolia.2025.100975","DOIUrl":"10.1016/j.aeolia.2025.100975","url":null,"abstract":"<div><div>The Mesopotamian Marshes, located in southern Iraq and southwestern Iran, represent one of the world’s largest wetland ecosystems. These marshlands have undergone significant degradation primarily due to anthropogenic activities, including extensive dam construction, oil extraction, and political conflicts, transforming vast areas into potential dust sources. This study investigates the wind climatology over the marshes and analyzes the long-range transport pathways of dust originating from the region using forward air-parcel trajectories generated with the HYSPLIT model from 2000 to 2023, with each trajectory calculated over an 8-day period. Through trajectory clustering, we identified four primary transport pathways with distinct seasonal patterns. The dominant pathway (35%) follows the Shamal winds southeastward across the Persian Gulf, particularly active in summer and spring. A second pathway (35%) curves southwestward toward Africa, while a third (19%) moves northeastward toward the Caspian Sea and Kazakhstan during non-summer seasons. The fourth pathway (11%) represents high-altitude transport via mid-tropospheric westerlies, potentially reaching East Asia. Meteorological analysis suggests that dust emission potential is active year-round and is highest during summer. Summer is characterized by high temperatures (seasonal mean of <span><math><mrow><mn>38</mn><mo>.</mo><mn>8</mn><msup><mrow><mspace></mspace></mrow><mrow><mo>∘</mo></mrow></msup><mi>C</mi></mrow></math></span>), no precipitation, and the highest seasonal mean wind speeds (<span><math><mrow><mn>5</mn><mo>.</mo><mn>31</mn><mspace></mspace><mi>m</mi><msup><mrow><mi>s</mi></mrow><mrow><mo>−</mo><mn>1</mn></mrow></msup></mrow></math></span>). These findings provide crucial insights into the spatial extent and seasonal variability of dust transport from the Mesopotamian Marshes, demonstrating their far-reaching impact on air quality, ecosystems, and climate in regions as distant as East Asia and North Africa, highlighting the need for targeted conservation to mitigate environmental impacts posed by dust from these degraded wetlands.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"73 ","pages":"Article 100975"},"PeriodicalIF":3.1,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143864877","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
Suspended sediment transport over the lee slope and forest canopy downwind of a large Blowout/Parabolic dune 大型抛物沙丘背风坡和林冠下风的悬沙输运
IF 3.1 3区 地球科学
Aeolian Research Pub Date : 2025-04-12 DOI: 10.1016/j.aeolia.2025.100974
Brian Bodenbender , Brian Yurk , Suzanne DeVries-Zimmerman , Blake Harlow , Randall J. Schaetzl , Edward Hansen
{"title":"Suspended sediment transport over the lee slope and forest canopy downwind of a large Blowout/Parabolic dune","authors":"Brian Bodenbender ,&nbsp;Brian Yurk ,&nbsp;Suzanne DeVries-Zimmerman ,&nbsp;Blake Harlow ,&nbsp;Randall J. Schaetzl ,&nbsp;Edward Hansen","doi":"10.1016/j.aeolia.2025.100974","DOIUrl":"10.1016/j.aeolia.2025.100974","url":null,"abstract":"<div><div>Green Mountain Beach Dune is a large trough blowout migrating into a deciduous forest on the southeast shore of Lake Michigan, USA. Video cameras focused on the lee-slope of the dune recorded suspended sand transport in turbulent eddies rotating around both horizontal and vertical axes. A line of cups mounted on posts captured grainfall on the lee slope during a high wind event on November 21, 2017. Sediment mass in these traps decreased exponentially with distance from the brink. The relatively high half-length (distance at which 50 % of the sand has been deposited) of 6.2 m suggests that turbulence aids sand suspension. An array of grainfall traps in the forest beyond the base of the lee slope was sampled during 26 intervals over 30 months. Sediment masses in the forest traps decreased exponentially with distance from the dune with a mean half-distance of 46.7 m when leaves were off the trees and 62.6 m when leaves were on. We hypothesize that turbulence above the forest aids in suspending sand which also bounces off leaves and branches along the canopy. Sand in the grainfall traps fines with distance from the dune brink more rapidly in the lee slope than in the forest traps. Transport of sand beyond the lee slope plays a rather small part in the overall dune budget. However the relatively long distances of transport suggest that sand deposited within bogs or lakes can be a proxy for aeolian activity in an upwind dune.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"73 ","pages":"Article 100974"},"PeriodicalIF":3.1,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823750","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
On the relationship between air pollution indices and risk level of dust-related diseases and associated hospitalization 大气污染指数与粉尘相关疾病风险水平及住院治疗的关系
IF 3.1 3区 地球科学
Aeolian Research Pub Date : 2025-03-29 DOI: 10.1016/j.aeolia.2025.100972
Abbas Miri
{"title":"On the relationship between air pollution indices and risk level of dust-related diseases and associated hospitalization","authors":"Abbas Miri","doi":"10.1016/j.aeolia.2025.100972","DOIUrl":"10.1016/j.aeolia.2025.100972","url":null,"abstract":"<div><div>The air quality index (AQI), PM<sub>10</sub> and PM<sub>2.5</sub> reflect the level of air pollution and are used to assess the risk level of dust-related diseases and hospitalization. Previous studies have assessed the hospital admissions in relation to individual (e.g., PM<sub>10</sub>) or multiple air pollutants (AQI, PM<sub>10</sub>, and PM<sub>2.5</sub>) to examine the efficacy of these indices in reflecting health risks. This study examined the efficacy of air pollutants (AQI, PM<sub>10</sub>, and PM<sub>2.5</sub>) and dust storm indices (wind speed, visibility and dust storm index (DSI)) in reflecting health risks. Hospital admissions for respiratory, eye, and cardiovascular diseases were received from the Zabol Medical Emergency Center during 13 dust storm events in 2022 and 20 events in 2023. PM<sub>2.5</sub> and PM<sub>10</sub> were gathered from the Zabol University of Medical Sciences, and visibility and wind speed were collected from the Zabol meteorological station from May 2022 to Dec 2023. The results revealed AQI &gt; 100 and an increase in hospital admissions with increasing AQI during the period of study. The greatest hospital admissions were observed in June and July 2023, consistent with highest levels of PM<sub>10</sub> and values of DSI. Significant positive correlations were found between hospital admissions and both air pollutants and dust storm indices. AQI, DSI, Vis &lt; 2 km (visibility &lt; 2 km) and wind speed showed the highest correlations (r<sup>2</sup> &gt; 81). AQI and Vis &lt; 2 km were the dominant factors contributing to hospital admissions. Further, the results suggested that AQI, PM<sub>10</sub>, visibility, and DSI can function as a tool for risk communication and assessment of dust-related disease and hospitalization risk.</div></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"73 ","pages":"Article 100972"},"PeriodicalIF":3.1,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143724444","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信