Aeolian Research最新文献

{"title":"Vegetation, hydrology, and sand movement interactions on the Slate Canyon alluvial fan-Keeler Dunes Complex, Owens Valley, California","authors":"James H. Richards ,&nbsp;Jason K. Smesrud ,&nbsp;Dane L. Williams ,&nbsp;Brian M. Schmid ,&nbsp;John B. Dickey ,&nbsp;Maarten D. Schreuder","doi":"10.1016/j.aeolia.2022.100773","DOIUrl":"10.1016/j.aeolia.2022.100773","url":null,"abstract":"<div><p>Relationships among hydrology, sand movement, and vegetation community dynamics within the Slate Canyon alluvial fan and Keeler Dunes Complex, Owens (dry) Lake, California, were characterized. Construction of flood control berms (1954, 1967) cut off surface overflow events on the alluvial fan, resulting in subsequent very low plant cover and significant sand movement. Hydrologic modeling and analysis of plant cover and sand movement from aerial photos were combined to document and explain changes in plant cover in the study area for upland vegetation and groundwater-dependent vegetation. Where hydrologic factors dominated, upland vegetation was observed to have much lower cover (median 6%) than groundwater-dependent vegetation (median 41%) and much higher variability throughout the 1944 to 2012 study period. For upland vegetation, simulated potential plant cover was 9.2% and this declined to 4.4% when channel flow inputs were eliminated due to berm construction. Areas with minimal sand movement over the study period expressed actual plant cover similar to simulated levels. Areas with significant sand movement, however, had much lower plant cover than simulated potential values and areas with flood flow inputs had much higher cover. The decline in plant cover from 9.2 to 4.4% resulted in an estimated 4.4-fold greater sand movement (normalized sand flux increased from 14% to 62% relative to 100% for bare soil). The sensitivity of surface stability at low vegetation cover and the potential for hydrologic changes to reduce vegetation cover in this range illustrates how hydrology and sand movement interactions can destabilize sensitive sand dunes.</p></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"54 ","pages":"Article 100773"},"PeriodicalIF":3.3,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1875963722000039/pdfft?md5=c0caadb2c3e17d1c0c0e7cad73e5a863&pid=1-s2.0-S1875963722000039-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46646041","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of wind speed averaging time on the study of soil wind erosion on typical land surfaces","authors":"Yaping Shen ,&nbsp;Chunlai Zhang ,&nbsp;Xinyu Liu ,&nbsp;Hui Zhang ,&nbsp;Yajing Zhang","doi":"10.1016/j.aeolia.2021.100763","DOIUrl":"10.1016/j.aeolia.2021.100763","url":null,"abstract":"<div><p>Wind erosion studies based on wind speed of different averaging times always weaken the effect of effective wind force and wind speed fluctuation, and produce large errors in wind erosion assessment. To quantitatively reveal the time scale effect of average wind speed on wind erosion research, this study analyzed the changes in wind speed distribution, as well as that in wind erosion event statistics and wind erosion amount calculation under different statistical time intervals, based on field observations. To further eliminate this time scale effect, wind speed conversion relationships of different averaging times were established through quantile matching of wind speed distribution function. The results show that as the averaging time increases: (1) both high and low wind speeds are filtered, making the proportion of medium wind speeds increasing, and wind speed distribution gets narrow significantly; (2) both the number and cumulative duration of wind erosion events decrease exponentially; (3) wind erosion amount corresponding to different wind speed grades differ significantly; (4) a continuous conversion equation between wind speed of different averaging times and that of one minute were established; (5) the time scale effect on different surface types are significantly different. In general, by using the statistical characteristics of wind speed distribution innovatively and considering difference in land surface properties, this study established an empirical wind speed conversion model on typical wind erosion surfaces, which will improve the evaluation accuracy of soil wind erosion intensity, and provide basis for the construction of process-based soil wind erosion model.</p></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"54 ","pages":"Article 100763"},"PeriodicalIF":3.3,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43353571","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":"Age and source of coastal loess in Shandong Peninsula, Bohai Sea, China: Implications for dust aggradation in respond to sea-level change","authors":"Xiaodong Miao ,&nbsp;Chongyi E. ,&nbsp;Shujian Xu ,&nbsp;Qiansuo Wang ,&nbsp;Paul R. Hanson ,&nbsp;Haitao Chen ,&nbsp;Yunkun Shi","doi":"10.1016/j.aeolia.2021.100767","DOIUrl":"10.1016/j.aeolia.2021.100767","url":null,"abstract":"<div><p>Coastal loess is a unique and intriguing eolian sediment on Earth, but understanding its formation time, provenance, composition and the geomorphic processes<span><span> that resulted in its accumulation is very limited compared to its inland counterpart. In this paper, we focused on a loess section at Xiazhupan (XZP) Village, Penglai City in Shandong Peninsula<span>, the only known coastal loess bluffs preserved in China. The coastal loess here not only has characteristics that are common to loess terrains such as being composed of predominantly silt-sized particles and the tendency to stand in vertical exposures, but it also reportedly preserves planktonic foraminifera, sizable pebbles and volcanic glass. In addition to its peculiar near-shore locality, these features make it more unusual compared to other loess deposits. Systematic optically stimulated luminescence (OSL), infrared stimulated luminescence (IRSL and pIRIR) and </span></span>radiocarbon dating<span><span> reveal it was deposited mostly during 60–20 ka, Marine Isotope Stage<span><span> (MIS) 4-2, which correlates to the deposition of the Malan loess (L1) in the Chinese Loess Plateau. High-resolution grain size data indicate that the coastal loess is relatively coarse-grained, suggesting a source terrain that is at least partially proximal. Given its proximal source and the geochronological evidence, this coastal loess was sourced from the exposed continental shelf during the sea-level lowstand of the </span>last glacial period, and this hypothesis is further supported by a core collected from the Bohai Sea in which silt was present and would have been subaerially exposed during MIS 4-2. In addition, this source area of exposed continental shelf is comparable to coastal loess in Europe. The coastal loess in Shandong can be regarded as a special type of desert or dryland loess, rather than glacial loess. Finally, future </span></span>sea level rise<span> will likely increase the erosion potential of these vulnerable coastal loess bluffs, making it urgent to study this special landform.</span></span></span></p></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"54 ","pages":"Article 100767"},"PeriodicalIF":3.3,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46428969","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":"Investigating threshold wind velocity for movement of sparsely distributed gravels in a wind tunnel: Effect of surface coarseness","authors":"Yoshihide Tominaga ,&nbsp;Toshihiro Okuyama","doi":"10.1016/j.aeolia.2022.100775","DOIUrl":"10.1016/j.aeolia.2022.100775","url":null,"abstract":"<div><p><span>In this study, wind tunnel experiments were conducted to determine the relationship between the texture of road surfaces and the threshold </span>wind velocity that causes the movement of sparsely distributed gravels. We proposed a method that uses analogous particles having lower densities compared to actual gravel, considering the threshold velocity for gravel is too large to imitate in a typical wind tunnel. We first conducted a preliminary experiment, which confirmed that the threshold velocity for denser prototype particles can be estimated from the density ratios of the analogous and prototype particles. Furthermore, a main experiment was conducted to analyze different road surface textures using pumice stones, as their particle density is less than that of gravels. The results showed that coarser road surfaces exhibited larger threshold velocities for the gravel movement. Quantitatively, the coarsest asphalt concrete exhibited a threshold velocity that was 2.5 times larger than that of the smoothest surface (cement concrete). However, surface coarseness was dependent on the particle size, whereas the effect of particles trapped by the gaps in surfaces was more dominant than the fluid force acting on the particles of a relatively coarse surface. This force balance is reversed for a smooth surface, which indicates the possibility of determining threshold friction velocity from the particle size and surface texture coarseness.</p></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"54 ","pages":"Article 100775"},"PeriodicalIF":3.3,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44055282","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":"Variations in the aeolian sequence Zr/Rb ratios in the Mu Us Desert during the Holocene and their implications for the East Asian monsoon","authors":"Fengnian Wang ,&nbsp;Yuejun Si ,&nbsp;Baosheng Li ,&nbsp;Dongfeng Niu ,&nbsp;Zhiwen Li ,&nbsp;Xiaohao Wen ,&nbsp;Zhiying Yang","doi":"10.1016/j.aeolia.2021.100753","DOIUrl":"10.1016/j.aeolia.2021.100753","url":null,"abstract":"<div><p>Situated in the Salawusu River Valley in the southeast of China’s Mu Us Desert, the Milanggouwan stratigraphical section MGS1 has recorded 11 sedimentary cycles, consisting of alternations between dune sands and fluvial or lacustrine facies. This paper analyzed the distribution of grain-size and Zr/Rb ratios in the MGS1, which is located in the arid and semi-arid areas of North China, and grain-size and Zr/Rb ratios are good proxy indicators of East Asian winter and summer monsoons. Results determined the age of the top of MGS1 to be 11.6 ± 0.9 ka BP, and Mz and σ values in the dune sands to be lower than those in the corresponding fluviolacustrine or paleosols<span>. Furthermore, Zr/Rb also exhibited low values in the dune sands and a relatively high content in the fluviolacustrine and paleosols. Both grain-size and Zr/Rb ratios displayed 11 cycles similar to the sedimentation changes, while the Zr/Rb ratios were observed to correlate with Mz and σ. The results suggested that the cycles resulted from the fluctuations between cold-dry and warm-humid climates, and the MGS1 segment experienced at least 11 cold-dry and warm-humid climatic fluctuations. This type of high-frequency climatic fluctuation on a millennial time-scale is related to variations in the strength of the East Asian winter and summer monsoons during the Holocene Period. The dominant periods of the winter monsoon corresponded to the cold events of 8200, 5000, 4000, 2700 and 1400a BP reported in the North Atlantic and other regions in China.</span></p></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"54 ","pages":"Article 100753"},"PeriodicalIF":3.3,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48856309","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 of electric field, aerosol, and wind covariance in different blowing dust days in West Texas","authors":"Karin Ardon-Dryer ,&nbsp;Vanna Chmielewski ,&nbsp;Eric C. Bruning ,&nbsp;Xia Xueting","doi":"10.1016/j.aeolia.2021.100762","DOIUrl":"10.1016/j.aeolia.2021.100762","url":null,"abstract":"<div><p>Blowing dust events are common meteorological phenomena that can influence the atmospheric vertical electric field (<em>E</em>_z). In this work we examine different local blowing dust days in Lubbock, Texas in order to understand their impact on the local vertical electric field, and the relationships of the vertical <em>E</em>_z to horizontal wind speeds, visibility, relative humidity, temperature and PM_2.5 (particles with aerodynamic diameter &lt;2.5 μm). All blowing dust days had an increase in <em>E</em>_z, but they did not generate similar <em>E</em>_z patterns. Several of the blowing dust days had an expected increase in <em>E</em>_z with a reduction of visibility and an increase in PM_2.5, wind speed, or wind gusts. But others were more complex without a direct relationship between <em>E</em>_z and PM_2.5. Variability of <em>E</em>_z at different time scales was examined, including correlation tests with wind speed, visibility, PM_2.5, temperature, or relative humidity for each blowing dust event and overall. The complexity found, including a decorrelation time scale between wind speeds and <em>E_z</em> at relatively high frequencies, emphasizes the sensitivity of the dust events in this region and the dependence on the analysis interval used in this study.</p></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"54 ","pages":"Article 100762"},"PeriodicalIF":3.3,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48313669","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":"Fluvial-aeolian interaction deposits in the Andean Foreland basin (Northwest Argentina): Architecture and facies model","authors":"Salomé Salvó Bernárdez ,&nbsp;Peter Zabala Medina ,&nbsp;Carlos Limarino ,&nbsp;Néstor Bonomo ,&nbsp;Ana Osella","doi":"10.1016/j.aeolia.2021.100754","DOIUrl":"https://doi.org/10.1016/j.aeolia.2021.100754","url":null,"abstract":"<div><p>The fluvial-aeolian interaction field of the Guandacol valley (northwest Argentina) is studied through different methodologies that comprise satellite, drone and GPR images, bedform descriptions, and grain-size analysis. The obtained information allowed the recognition of five depositional subenvironments: 1. Dune patches; 2. Aeolian sand sheets; 3. Muddy plains; 4. Active channels; and 5. Abandoned and secondary channels. Moreover, the lithofacies pattern, sedimentary structures and geometry of the beds permitted the definition of ten architectural elements in both channel and interchannel areas. The channel architectural elements comprise active channels with intercalations of aeolian deposits (CHe), abandoned or secondary channels (CHa), aeolian sand ramp (CHsr), lateral bars (CHlb), and aeolian mesoforms (CHem). The architectural elements in the interchannel area include active dunes (Fad), fixed or low-migration rate dunes (Fsd), partially flooded interdunes (Ffd), sandy flats (Fsf), and muddy plains (Fmp). A model of the evolution of fluvial-aeolian interaction environment is proposed in which three types are recognized: dry, intermediate, and wet. Migratory dunes and sand sheets environments dominate the dry interaction systems in the floodplain (Fad, Fsf). At the same time, during the intermediate stage, Fsd and Fsf architectures prevail, together with fluvial bars with thin aeolian intercalations into the channels (CHe and CHa). The wet systems consist of flooded interdunes, muddy plains, and different types of aeolian mesoforms in the channel (Fmp, Ffd and CHem).</p><p>The analysis of present-day depositional subenvironments in the Guandacol valley and the definition of architectural elements serve as a potential analogue for studying ancient fluvial-aeolian interaction environments.</p></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"54 ","pages":"Article 100754"},"PeriodicalIF":3.3,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136819509","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":"Depositional timing and palaeoclimate interpretation of the Tamala Limestone aeolianites in Shark Bay, Western Australia","authors":"Lucas Vimpere,&nbsp;Nicolò Del Piero,&nbsp;Aymeric Le Cotonnec,&nbsp;Pascal Kindler,&nbsp;Sébastien Castelltort","doi":"10.1016/j.aeolia.2021.100770","DOIUrl":"10.1016/j.aeolia.2021.100770","url":null,"abstract":"<div><p>The carbonate units grouped under the name “Tamala Limestone” outcrop for a thousand kilometres along the coast of Western Australia. The extensive Zuytdorp Cliffs shaping the northern half of the coastline up to Shark Bay expose and offer an exceptional access to the stratigraphy of this formation.</p><p>The regional survey of the Shark Bay region, which combines both stratigraphic and sedimentological analyses, reveals that the Tamala Limestone is a dry accumulating aeolian system composed of large transverse dunes migrating parallel to the prevailing winds. Accordingly, the amino acid-data show an aging of the units towards the east. Episodes of carbonate aeolian sedimentation correlate with the successive glacial intervals of the Pleistocene whilst paleosols are correlated with breaks in the sedimentation during interglacial intervals.</p><p>Palaeoclimate reconstructions reveal that sea level and sea surface temperature of the Indo-Pacific Warm Pool were lower during glacial intervals. The weakened Leeuwin Current, which flows along the western coast of Australia and is the main source of precipitation, contributed to the aridification of the region. Consequently, and associated with a northward migration of the Hadley and Ferrel cells, periods of glaciation were drier. By contrast, paleosols developed through dissolution of the carbonate units during more humid interglacial intervals.</p></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"54 ","pages":"Article 100770"},"PeriodicalIF":3.3,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1875963721001075/pdfft?md5=2e6a3d79c90dc7f0b4cb7c63e2449637&pid=1-s2.0-S1875963721001075-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41340270","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Use of digital photogrammetry and LiDAR techniques to quantify time-series dune volume estimates of the Keeler Dunes Complex, Owens Valley, California","authors":"Brian M. Schmid ,&nbsp;Dane L. Williams ,&nbsp;Chuan-Shin Chong ,&nbsp;Miles D. Kenney ,&nbsp;John B. Dickey ,&nbsp;Peter Ashley","doi":"10.1016/j.aeolia.2021.100764","DOIUrl":"10.1016/j.aeolia.2021.100764","url":null,"abstract":"<div><p>Aeolian dune morphology was characterized quantitatively in three dimensions to map and classify the Keeler Dunes complex (Keeler Dunes) in Owens Valley, California, from 1944 to 2012, providing a spatially and temporally resolved understanding of dune development and evolution during this period. The three-dimensional (3D) quantitative methods applied in this study provide an opportunity to build on previous two-dimensional (2D) work on dunefield evolution at this site (Lancaster and McCarley-Holder, 2013 [LM2013]). The 3D quantitative methods permitted the identification and quantification of two specific regions of the Keeler Dunes not previously described or considered. With the two new regions included in the time-series analysis, the Keeler Dunes are shown to be stable from a volume perspective since the mid-1990s, with a decrease between the late 1970s and mid-1990s. These results differ from the threefold increase reported during the same timeframe using 2D techniques by LM2013. While the Keeler Dunes were found to be stable from a volume perspective, they underwent significant geomorphological changes during this period. As the semi-active and vegetated dune mounds reactivated, depositional aprons of newly mobile sand advanced downwind. Over time, the depositional aprons formed linear dunes (in the northern dunefield) and crescentic dunes (in the southern dunefield) that are still present today. Fundamentally, the quantitative photogrammetric-based approach in this work provides significant new insight into the evolution and origin of the modern Keeler Dunes. In addition, this work underscores the importance of 3D quantitative techniques to fully characterize the temporal evolution of dynamic dunefields.</p></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"54 ","pages":"Article 100764"},"PeriodicalIF":3.3,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1875963721001014/pdfft?md5=6297e6cc431d2127ca7c80739e1c1513&pid=1-s2.0-S1875963721001014-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48432347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characterization of potential fugitive dust emissions within the Keeler Dunes, an inland dune field in the Owens Valley, California, United States","authors":"Katheryn R. Kolesar ,&nbsp;Mark D. Schaaf ,&nbsp;John W. Bannister ,&nbsp;Maarten D. Schreuder ,&nbsp;Mica H. Heilmann","doi":"10.1016/j.aeolia.2021.100765","DOIUrl":"10.1016/j.aeolia.2021.100765","url":null,"abstract":"<div><p>Fugitive dust sources within the Keeler Dunes, a small shoreline dune system in the northeast corner of Owens (dry) Lake in Owens Valley, California, U.S.A. were investigated. PM₁₀ flux potential was quantified using measurements from a Portable In-Situ Wind Erosion Laboratory (PI-SWERL). Stratified random sampling was used to evaluate potential PM₁₀ fluxes from eight landforms, as determined by high-resolution satellite imagery and ground observations, found within the vicinity of the Keeler Dunes. Within each landform, potential PM₁₀ flux for one or more representative surface types was measured. A total of seven surface types were identified, several of which existed on different landforms. The results indicate that the major determinant of potential PM₁₀ flux is the landform type. Furthermore, the highest potential PM₁₀ fluxes are from landforms characterized by surface deposition of alluvial sediment. Within the Keeler Dunes Complex, these landforms are associated with the severely eroded 1944 shoreline coppice dunes, flash flood channels, and flash flood deposits. In the Owens Valley, studies of dust emissions have tended to focus on aeolian landforms. However, similar to measurements of potential PM₁₀ flux from desert landforms across the globe, this investigation points to the importance of alluvial landforms as major sources of dust emissions within the Owens Valley region. This article is a part of a larger investigation into the modern destabilization and migration of the Keeler Dunes (Schaaf et al. this issue).</p></div>","PeriodicalId":49246,"journal":{"name":"Aeolian Research","volume":"54 ","pages":"Article 100765"},"PeriodicalIF":3.3,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1875963721001026/pdfft?md5=107975d881f0a637c444c1bb50822ae9&pid=1-s2.0-S1875963721001026-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44914932","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}