Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
116
datasets available to search
ShareScore release 0.9.0
Dataset results
116 results for “sand dune”
Figure 1 in Coastal sand dune flora in the Thoothukudi District, Tamil Nadu, southern India
Figure 1. Study area
Image 1 in Coastal sand dune flora in the Thoothukudi District, Tamil Nadu, southern India
Image 1. Sand dune in Manapadu Village
Sand Dunes Earthquake Locations - hypoDD using Rio Grande Rift velocity model is preferred
<p>From the publication "Earthquake swarm near Great Sand Dunes, Colorado, investigated with temporary seismic network and machine learning seismic phase analysis." in the Mountain Geologist.</p> <p>Three catalogs were produced using different location algorithms. The catalog titled hypoDD_RGR is the preferred catalog.</p> <p>There were 717 events located by glass3 and SEISAN. 700 of those events were located by hypoDD. Column hypoDD_ID reconciles the events in all three catalogs.</p>
Airflow dynamics and aeolian sand transport across a beach-climbing dune-clifftop dune system
<p>This study presents an analysis of wind flow and sediment transport from the beach, up a 50m high, long (130m), steep (mean slope 26°) climbing dune and across a 1.5 m high max, 85 m long and 17.5 m wide clifftop dune 30km south of Dakhla in Morocco, NW Africa during highly oblique incident wind conditions. Multiple 2D sonic and cup/vane anemometers and sand traps were utilised for measurements. Flow steering was significant on the upper climbing dune. Flow deceleration occurred near the dune toe, and topographic forcing of flow was considerable on the upper slopes of the climbing dune. Near-surface flow steadiness (CV<sub>U1</sub>, CV<sub>U0.25</sub>) on the climbing dune straight slope segment was low and constant The distance upslope over which the airflow reached the speed comparable to that on the beach increases as the incident wind speed increases. The greatest flow acceleration and speed-up was observed at the cliff edge reaching 250% at 1m height and 220% at 0.25m height for the lowest incident wind speed class (4-5 m/s). The sand transport rate declined from the beach to the climbing dune toe and lower slope, but at the uppermost section of the climbing dune was 4 times higher than at the beach for the 7-8m/s incident wind speed. Sand in aeolian transport was generally finer than surface sand with mean grain size increasing up the slope. A comparison of the sand transport data collected with sand transport models, and the effects of slope on aeolian transport are also examined.</p>
Elevation Models for Reproducible Evaluation of Terrain Representation – Archetypal Landforms – Great Sand Dunes ASCII
<p>An elevation model of Great Sand Dunes, Colorado, USA</p> <p>Landform features: active dune field, sand sheet, sabkha</p> <p>Resolution: 3.3 meter, 5,300 x 5,300 height samples</p> <p>File format: Esri ASCII grid</p> <p>This is one model of a set of elevation models: <a href="https://doi.org/10.5281/zenodo.3938020">https://doi.org/10.5281/zenodo.3938020</a>. Please cite the entire set of models.</p> <p>Version 1.0.1 removes empty space characters from the file header, which prevented the file from being opened by some software.</p> <p>When using this elevation model in an academic publication, please cite the following article, which describes the process and rationale for compiling elevation models:</p> <p><em>Kennelly, P. J., Patterson, T., Jenny, B., Huffman, D. P., Marston, B. E., Bell, S. and Tait, A. M. (2021). Elevation models for reproducible evaluation of terrain representation. Cartography and Geographic Information Science, 48:1, 63–77. DOI: <a href="http://doi.org/10.1080/15230406.2020.1830856">10.1080/15230406.2020.1830856</a></em></p>
Data from: The influence of contemporary and historic landscape features on the genetic structure of the sand dune endemic, Cirsium pitcheri (Asteraceae)
Narrow endemics are at risk from climate change due to their restricted habitat preferences, lower colonization ability and dispersal distances. Landscape genetics combines new tools and analyses that allow us to test how both past and present landscape features have facilitated or hindered previous range expansion and local migration patterns, and thereby identifying potential limitations to future range shifts. We have compared current and historic habitat corridors in Cirsium pitcheri, an endemic of the linear dune ecosystem of the Great Lakes, to determine the relative contributions of contemporary migration and post-glacial range expansion on genetic structure. We used seven microsatellite loci to characterize the genetic structure for 24 populations of Cirsium pitcheri, spanning the center to periphery of the range. We tested genetic distance against different measures of geographic distance and landscape permeability, based on contemporary and historic landscape features. We found moderate genetic structure (ave Fst =0.14), and a north -south pattern to the distribution of genetic diversity and inbreeding, with northern populations having the highest diversity and lowest levels of inbreeding. High allelic diversity, small average pairwise distances and mixed genetic clusters identified in Structure suggest populations in the center of the range represent the point of entry to the Lake Michigan and a refugia of diversity for this species. A strong association between genetic distances and lake level changes suggests that historic lake fluctuations best explain the broad geographic patterns, and sandy habitat best explain local patterns or movement.
FIGURE 9 in A new species of stag beetle from sand dunes in west Texas, and a synopsis of the genus Nicagus (Coleoptera: Lucanidae: Aesalinae: Nicagini)
FIGURE 9. Distribution of Nearctic species of Nicagus, indicated by triangles (N. occultus), or circles (N. obscurus). An open circle indicates a state record without specific locality data.
FIGURE 4 in A new species of stag beetle from sand dunes in west Texas, and a synopsis of the genus Nicagus (Coleoptera: Lucanidae: Aesalinae: Nicagini)
FIGURE 4. Protibial dentation (dorsal view) of male: a) N. occultus, b) N. obscurus, and c) N. japonicus.
FIGURES 5–8. 5 in A new species of stag beetle from sand dunes in west Texas, and a synopsis of the genus Nicagus (Coleoptera: Lucanidae: Aesalinae: Nicagini)
FIGURES 5–8. 5. Lateral view of male N. occultus, illustrating diagnostic characters: short, conical metatibia; weakly curved claws; and dorsally curved parameres. 6. Lateral view of elongate male metatibia of N. obscurus. 7. Apex of metatibiae of male N. occultus. 8. Male genitalia of N. occultus (dorsal view), showing rounded apex of median lobe.
FIGURE 3 in A new species of sun-spider from sand dunes in Coahuila, Mexico, (Arachnida: Solifugae: Eremobatidae)
FIGURE 3. Eremocosta arenarum sp. nov. Detail of male cheliceral fixed finger, showing the mesoventral groove.
FIGURES 1–2 in A new species of sun-spider from sand dunes in Coahuila, Mexico, (Arachnida: Solifugae: Eremobatidae)
FIGURES 1–2. Eremocosta arenarum sp. nov. 1 Ectal view of right male chelicera lateral view, 2 Mesal view of right male chelicera. Scale 1mm.
FIGURES 5–6 in A new species of sun-spider from sand dunes in Coahuila, Mexico, (Arachnida: Solifugae: Eremobatidae)
FIGURES 5–6.Eremocosta arenarum sp. nov. 5 Ectal view of right chelicerae of the putative female, 6 Mesal view of right putative female chelicera. Scale 1mm.
FIGURE 5 in A new species of Liolaemus from Añelo sand dunes, northern Patagonia, Neuquén, Argentina, and molecular phylogenetic relationships of the Liolaemus wiegmannii species group (Squamata, Iguania, Liolaemini)
FIGURE 5. Phylogenetic relationships of Liolaemus cuyumhue with other species of the wiegmannii group as shown by the consensus Bayesian tree. Posterior probabilities and maximum parsimony bootstrap values are shown above and below branches.
FIGURE 3 in A new species of Liolaemus from Añelo sand dunes, northern Patagonia, Neuquén, Argentina, and molecular phylogenetic relationships of the Liolaemus wiegmannii species group (Squamata, Iguania, Liolaemini)
FIGURE 3. Known distribution of wiegmannii species group. Large red star: type locality of Liolaemus cuyumhue. Red squares, L. azarai; orange squares: L. multimaculatus; green squares: L. salinicola; green circles: L. lutzae; yellow circles: L.scapularis; red circles: L. arambarensis; pink circles: L. occipitalis; blue circles: L.wiegmannii; black stars: L. riojanus; yellow square: L. rabinoi. Inset: satellite image of the Añelo basin, a red star mark the type locality.
FIGURE 1 in A new species of Liolaemus from Añelo sand dunes, northern Patagonia, Neuquén, Argentina, and molecular phylogenetic relationships of the Liolaemus wiegmannii species group (Squamata, Iguania, Liolaemini)
FIGURE 1. Liolaemus cuyumhue in life, lateral and ventral view of holotype (MACN 38981), adult male 51.2 mm in SVL.
FIGURE 2 in A new species of Liolaemus from Añelo sand dunes, northern Patagonia, Neuquén, Argentina, and molecular phylogenetic relationships of the Liolaemus wiegmannii species group (Squamata, Iguania, Liolaemini)
FIGURE 2. Dorsal and ventral color variation in the type series of Liolaemus cuyumhue (museum numbers are in diagnosis).
FIGURES 100–107 in Velvet ants (Hymenoptera: Mutillidae) of the Algodones sand dunes of California, USA
FIGURES 100–107. Sphaeropthalma arota, male: 100. genitalia, dorsal view right, ventral left; 101. head, dorsal view; and 102. mandible, lateral view. Photomorphus clandestina, male, 103. genitalia, dorsal view left, ventral right; 104. mandible, lateral view; and 105. mesosternal processes, oblique angle, posterior view. Odontophotopsis bellona, male, 106. mesosternal processes, anterior view; Photomorphus clandestina, male, 107. genitalia, dorsal view left, ventral right.
FIGURES 56– 70 in Velvet ants (Hymenoptera: Mutillidae) of the Algodones sand dunes of California, USA
FIGURES 56– 70. Odontophotopsis arcuata, female: 56. head, anterior view; 57. lateral view; 58. dorsal view of mesosoma, anterior left; and 59. pygidium. Sphaeropthalma blakeii, female: 60. head, anterior view; 61. lateral view; 62. dorsal view of mesosoma, anterior left; and 63. pygidium. S. difficilis, female: 64. head, anterior view; 64. lateral view; and 66. dorsal view of mesosoma, anterior left. S. ecarinata, female: 67. head, anterior view; 68. head, lateral view; 69. lateral view; and 70. dorsal view of mesosoma, anterior left.
FIGURES 71–84 in Velvet ants (Hymenoptera: Mutillidae) of the Algodones sand dunes of California, USA
FIGURES 71–84. Odontophotopsis inconspicua, female: 71. head, anterior view; 72. lateral view; and 73. dorsal view of mesosoma, anterior left. Sphaeropthalma militaris, female: 74. head, anterior view; 75. head, lateral view; 76. lateral view; and 77. dorsal view of mesosoma, anterior left. O. obscura, female: 78. head, anterior view; 79. lateral view; 80. dorsal view of mesosoma, anterior top; and 81. pygidium. O. parva, female: 82. head, anterior view; 83. lateral view; and 84. dorsal view of mesosoma, anterior top.
FIGURES 47–55 in Velvet ants (Hymenoptera: Mutillidae) of the Algodones sand dunes of California, USA
FIGURES 47–55. Habitus, lateral view. Dasymutilla atricuada, 47. female and 48. male; D. gloriosa, 49. female and 50. male; D. imperialis, 51. male; D. magnifica, 52. female and 53. male; and D. nocturna, 54. female and 55. male.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.