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270 results for “craters”
Geological Map of the Derain (H10) Quadrangle of Mercury (5 crater class version)
<p>Geological (morphostratigraphic) map recognising 5 crater degradation classes. We also have a 3 crater class version, that is otherwise identical. This version is slightly revised after review for publication in J Maps 3 Aug 2022.</p>
EXPLORE Expert Data Challenges 2022 - Craters dataset
<p>This dataset contains Lunar Craters images and labels in COCO json format that will be used for the EXPLORE Expert Data Challenge 2022.</p> <p> </p> <p>More information at: https://exploredatachallenges.space/</p> <p> </p> <p>Source dataset is derived from Fairweather et al. (2022</p> <p>Images were processed from NASA PDS raw data and labels extracted using python scripts. </p>
Ulysses Fossae Crater Catalogue
<p>Catalogue of all craters in Ulysses Fossae, Mars, with a diameter >800m in shapefile format. Craters are mapped on Context Camera (CTX) images, within the Tanaka et al. (2014) unit boundary outlines.</p>
Museum genomics reveals the hybrid origin of an extinct crater lake endemic
<p>Crater lake fishes are common evolutionary model systems, with recent studies suggesting a key role for gene flow in promoting rapid adaptation and speciation. However, the study of these young lakes can be complicated by human-mediated extinctions. Museum genomics approaches integrating genetic data from recently extinct species are therefore critical to understanding the complex evolutionary histories of these fragile systems. Here, we examine the evolutionary history of an extinct Southern Hemisphere crater lake endemic, the rainbowfish Melanotaenia eachamensis. We undertook comprehensive sampling of extant rainbowfish populations of the Atherton Tablelands of Australia alongside historical museum material to understand the evolutionary origins of the extinct crater lake population and the dynamics of gene flow across the ecoregion. The extinct crater lake species is genetically distinct from all other nearby populations due to historic introgression between two proximate riverine lineages, similar to other prominent crater lake speciation systems, but this historic gene flow has not been sufficient to induce a species flock. Our results suggest that museum genomics approaches can be successfully combined with extant sampling to unravel complex speciation dynamics involving recently extinct species.</p>
Chang'e 5 Landing Camera Crater Detection Dataset
<p>132 hand-labelled images from the Chang'e 5 Landing Camera. Visible impact craters in each image have their crater rim inscribed by a bounding ellipse.</p> <p>On average, there are approximately 50 labelled craters per image.</p> <p>The first 100 images of the landers descent were labelled - this is the intended training set.</p> <p>Every 10 images of the remaining 313 were then labelled - this is the intended testing set.</p> <p> </p> <p>File Descriptions:</p> <p>CE5-ellipse-labels: joblib dump of ellipse parameters per image.</p> <p>change5-*.json: Raw labels as produced by the labelling software of choice, Label Studio.</p> <p> </p> <p>Images:</p> <p>The images used in this work were produced and processed by the Ground Research and Application System (GRAS) of China's Lunar and Planetary Exploration Program (https://moon.bao.ac.cn). Specifically, the first 413 images from the Chang'e 5 landing camera level 2A were used. The images can be downloaded from here: <a href="https://moon.bao.ac.cn/ce5web/searchOrder_hyperSearchData.search?pid=CE5/LCAM/level/2A" target="_blank" rel="noopener">https://dx.doi.org/10.12350/CLPDS.GRAS.CE5.LCAM-2A.vA</a>.</p> <p> </p> <p>Reference and Acknowledgement:</p> <p>Users of these annotations and associated data are requested to cite both the original dataset source (https://moon.bao.ac.cn) and the following paper:</p> <p>Matthew Rodda, Sofia McLeod, Ky Cuong Pham, and Tat-Jun Chin. (2024). Camera-Pose Robust Crater Detection from Chang'e 5. doi: https://doi.org/10.48550/arXiv.2406.04569</p> <p> </p> <p>BibTeX:</p> <pre><code>@misc{rodda2024camerapose, title={Camera-Pose Robust Crater Detection from Chang'e 5}, author={Matthew Rodda and Sofia McLeod and Ky Cuong Pham and Tat-Jun Chin}, year={2024}, eprint={2406.04569}, archivePrefix={arXiv}, primaryClass={cs.CV} }</code></pre>
Dataset for the manuscript: "Elevated-Mn ChemCam Targets Illuminating Mn Redox Cycling and Diagenesis in the Bradbury Rise, Gale Crater, Mars"
<p><span>The dataset for the manuscript titled, “Elevated-Mn ChemCam Targets Illuminating Mn Redox Cycling and Diagenesis in the Bradbury Rise, Gale Crater, Mars” consists of a single CSV file. This CSV contains 1,539 rows, with one ChemCam observation point per row. The observation points in this file are from the ChemCam rock targets between martian solar days (sols) 1 and 600 of the MSL <em>Curiosity</em> rover mission that have at least one observation point with > 0.2 wt% MnO. Metadata and compositional data are provided for each row. The metadata includes the LIBS spectrum filename; the name of the target to which the observation point belongs; the class into which we grouped the target; the spacecraft clock value (timestamp) for the observation point; the sol on which the observation was taken; and the ChemCam sequence identifier; the observation point number within the sequence; the ChemCam-to-target distance (in meters); the laser power used for the LIBS measurements; the spectrum totals; and a binary column indicating whether the observation point has > 0.2 wt% MnO. The compositional data includes the oxide chemistry (oxide wt.%), RMSEP accuracy, and shot-to-shot standard deviation, for the major oxides SiO2, TiO2, Al2O3, FeOT, MgO, CaO, Na2O, K2O, as well as for MnO; the sum of oxides for each observation point is also provided.</span></p>
Fig. 1 in First study on the zooplankton of the Kerid (Kerið) Crater Lake, Iceland
Fig. 1. Kerid Crater Lake, South-western Iceland. Results The zooplankton of the Kerid Lake comprised 10 taxa, mostly belonging to the Rotifera phylum (Table 1). The highest were the densities of Keratella cf. americana Carlin, 1943, Lecane lunaris (Ehrenberg, 1832) and Colurella sulcata (Stenroos, 1898). Other frequent zooplankton taxa belong to lower crustaceans from Cladocera and Copepoda (Table 1). The most frequent of them were the juvenile specimens of Acanthocylops vernalis (s. lat.) (Fischer, 1853).
Geologic Map of Tyre Impact Crater on the Galilean Moon Europa - Digitized and Modified Versions (2024)
<p><strong>Geologic Map of Tyre Impact Crater on the Galilean Moon Europa - Digitized and Modified Versions (2024)</strong></p> <p>Files and deliverable documentation of the process of digitizing the geologic map of Tyre, Kadel et al. 2000. This may be useful if you are looking to learn how to digitize a geologic map using some form of mapping software, or to learn about the surface geology of Jupiter's icy moon Europa. </p> <p>Includes:</p> <ul> <li>read.me with supporting information</li> <li>map package</li> <li>Georeferenced PDF figures </li> <li>Shapefiles </li> </ul>
Recent Tectonic Activity in and Around the Posidonius Crater, Moon-Version 5
<p>The shapefiles and .scc files of the version 5 manuscript: "Recent tectonic activity in and around the Posidonius crater, Moon."</p>
Rapid Impact Crater Relaxation Caused by An Insulating Methane Clathrate Crust on Titan: Data and Marc Files
<p><span>Data files for several figures in the manuscript "Rapid Impact Crater Relaxation Caused by An Insulating Methane Clathrate Crust on Titan" Published in The Planetary Science Journal. This includes data for the following figures: 4, 6, 7, 8 and 10. Two example Hexagon Marc-Mentat mud files for the axisymmetric thermal simulation and mechanical simulation of a 10 km thick clathrate, 85 km diameter crater are also included.</span></p> <p><span>Each column is self-explanatory except for the two relative depth data files. "Relative_Depth_Deep_Fig8" includes the results for simulations that use the initially deeper crater depth, and "Relative_Depth_Shallow_Fig8" includes the results for simulations that use the initially shallower crater depth. The columns are labeled with a shorthand notation for pairs of columns that represent the relative crater depth at specified times in the simulation. An example of time is “t(yr)_v21_120_5” and the corresponding relative depth column is “v21_Rd_120_5.” Time is given in years and relative depth is unitless. These specific examples provide results for a simulation that has a viscosity cutoff of 10^21 Pa s and a 120 km diameter crater with a 5 km thick methane clathrate crust overlying water ice.</span></p>
FIG. 4 in African highland harvestman: New genus and new species of Filopalpinae Martens, 2022 (Opiliones, Assamiidae) from Wonchi crater, Oromia province, Ethiopia
FIG. 4. — Male genitalia of Assamhoplites martensi n. gen., n. sp.: A, ventral; B, dorsal not expanded and expanded respectively; C, lateral not expanded and expanded respectively. Scale bars: 100 µm.
FIG. 3. — Assamhoplites martensi n. gen., n in African highland harvestman: New genus and new species of Filopalpinae Martens, 2022 (Opiliones, Assamiidae) from Wonchi crater, Oromia province, Ethiopia
FIG. 3. — Assamhoplites martensi n. gen., n. sp. ectal view of the left pedipalp: A, male; B, female. Scale bar: 500 µm.
FIG. 2. — Assamhoplites martensi n in African highland harvestman: New genus and new species of Filopalpinae Martens, 2022 (Opiliones, Assamiidae) from Wonchi crater, Oromia province, Ethiopia
FIG. 2. — Assamhoplites martensi n. sp. male: A-C; habitus dorsal; D-F, habitus lateral; G, habitus ventral; H, chelicerae ventral; I, chelicerae frontal. Scale bars: A, D, E, 2 mm; B, G, I, 1 mm; C, F, H, 500 µm.
FIG. 5. — Assamhoplites martensi n. gen., n in African highland harvestman: New genus and new species of Filopalpinae Martens, 2022 (Opiliones, Assamiidae) from Wonchi crater, Oromia province, Ethiopia
FIG. 5. — Assamhoplites martensi n. gen., n. sp. female: A-C, habitus dorsal; D-F, habitus lateral; G, habitus ventral; H, chelicerae ventral; I, chelicerae frontal. Scale bars: A, D, 2 mm; B, E, F, G, 1 mm; C, H, I, 500 µm.
FIG. 6 in African highland harvestman: New genus and new species of Filopalpinae Martens, 2022 (Opiliones, Assamiidae) from Wonchi crater, Oromia province, Ethiopia
FIG. 6. — Examples of convergent pedipalp elongations in different groups of Laniatores harvestmen, including "short" to extremely elongated morphology in related species. All images representing males sexually dimorphic pedipalps. To compare the proportional variations across different podomeres they were colored as: trochanter (orange), femur (red), patella (light blue), metatarsus (purple), tarsus (dark blue). Pedipalps were vectorized from original figures taken in: Porto & Pérez-González (2020) (A); Kury & Machado (2018) and Zhang et al. (2013) (B) and Martens (2022) (E). Pedipalps of C were vectorized directly from pictures of the species type specimens kindly sent by Darko Cotoras. Symbol: * The size of the trochanter of Lomanius annae Kury & Machado, 2018 was estimated by utilizing images from Kury & Machado (2018).
FIG. 1. — A, B in African highland harvestman: New genus and new species of Filopalpinae Martens, 2022 (Opiliones, Assamiidae) from Wonchi crater, Oromia province, Ethiopia
FIG. 1. — A, B, Geographic distribution of Filopalpinae Martens, 2022. Ecoregions: ESS, East Sudanian savanna; EMF, Ethiopian montane forests; EMGW, Ethiopian montane grasslands and woodlands; EMM, Ethiopian montane moorlands; NACBT, Northern Acacia-Commiphora bushlands and thickets. ●, Filopalpus joschmidti Martens, 2022; ●, Filopalpus kakaensis Martens, 2022; ●, Filopalpus bale Martens, 2022; ●, Filopalpus altomontanus Martens, 2022, ●, Filopalpus niger Martens, 2022; ★,: Assamhoplites martensi n. sp.; C, topographic map of Ethiopia with the distribution of Filopalpinae.
raw crater counts for background regions & python code
<p>JMARS .jlf shape files that contain the measurement area polygon and crater measurements (diameters, center lat/lon, and a degradation classification). And .csv files of crater measurements. Names of files indicate the region for the counts. See associated publication for descriptions of those regions.</p>
Supplementary Materials for: Intense alteration on early Mars revealed by high-aluminum rocks at Jezero crater
<p>Supplementary tables S3 and S4 for "Intense alteration on early Mars revealed by high-aluminum rocks at Jezero crater" published in Nature Communications Earth & Environment.</p>
Crater Catalogue for Age Determination of the Chang'e-6 Mare Unit and Key Ejecta Source Craters
<p><strong>This page archives data used in the following article:<br></strong></p> <p><strong>Xu, L., Qiao, L., Xie., M., Wang, Y., Zhu, M-H., & Yan, J. (2024). Chronology, Local Stratigraphy, and Foreign Ejecta Materials at the Chang'e-6 Landing Site: Constraints on the Provenance of Samples Returned from the Moon's Farside. <em>Geophysical Research Letters</em>, 51. DOI: <span>10.1029/2024GL111311</span></strong></p> <p> </p> <p><strong>They include the Crater Catalogue for Age Determination of the Chang'e-6 Mare Unit and Key Ejecta Source Craters:</strong></p> <p><strong>CE6_MareUnit.zip: ArcGIS shapefile for the CRATER and AREA of the mare unit;</strong></p> <p><strong>CE6_5kmCircle_NAC.zip: ArcGIS shapefile for the CRATER and AREA of a 5 km-sized circle across the Chang'e-6 landing site;</strong></p> <p><strong>ChaffeeS.zip, White.zip, Vavilov.zip, and White'.zip: ArcGIS shapefile for the CRATER and AREA of key ejecta source craters Chaffee S, White, Vavilov, and White', respectively.</strong></p>
Linked collectors and determiners for: Craters of the Moon National Monument Herbarium.
Natural history specimen data linked to collectors and determiners held within, "Craters of the Moon National Monument Herbarium". Claims or attributions were made on Bionomia by volunteer Scribes, <a href="https://bionomia.net/dataset/6347031b-2348-47c6-a5ac-41216b49d17c">https://bionomia.net/dataset/6347031b-2348-47c6-a5ac-41216b49d17c</a> using specimen data from the dataset aggregated by the Global Biodiversity Information Facility, <a href="https://gbif.org/dataset/6347031b-2348-47c6-a5ac-41216b49d17c">https://gbif.org/dataset/6347031b-2348-47c6-a5ac-41216b49d17c</a>. Formatted as a Frictionless Data package.
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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.