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17 results for “Enceladus”
Spherical harmonic models of the shape of Enceladus [JPL SPC]
<p>This archive contains two spherical harmonic models of the shape of Saturn's moon Enceladus, truncated at different maximum spherical harmonic degrees. The highest resolution model has a maximum spherical harmonic degree of 1023, which was generated from an ICQ shape model with Q=1024.</p> <p>The data used to generate these models are from a JPL stereo photoclinometric shape model based on images obtained by the Cassini mission, as found in the file <code>cas_enceladus_ssd_spc_1024icq_v1.bds</code> on <a href="https://naif.jpl.nasa.gov/pub/naif/pds/data/co-s_j_e_v-spice-6-v1.0/cosp_1000/data/dsk/">NASA's PDS website</a>. The vertices were first converted from Cartesian to spherical coordinates, from which a regular gridline registered netcdf file was created using the <a href="https://www.generic-mapping-tools.org/">generic-mapping-tools</a> function <code>surface</code> with a tension of 0.6 and with a grid spacing of 0.087890625 degrees. This file was then read into the <a href="https://shtools.github.io/SHTOOLS/index.html">pyshtools</a> software and expanded into spherical harmonics using the function <code>SHCoeffs.expand()</code>. The spherical harmonic functions were chosen to be "4pi" normalized and to exclude the Condon-Shortley phase factor of (-1)<sup>m</sup>. The units of the coefficients are meters.</p> <p>The two files in this archive are</p> <ul> <li>Enceladus_JPL_SPC_shape_1023.bshc.gz</li> <li>Enceladus_JPL_SPC_shape_719.bshc.gz</li> </ul> <p>The numbers 1023 and 719 in the filename refer to the maximum spherical harmonic degree of file, which corresponds to effective spatial resolutions of ~11.4 and 8 pixels per degree, respectively. The files are stored in the binary "bshc" format as described in the pyshtools documentation and are furthermore compressed using gzip. The lower resolution model was generated by truncating the spherical harmonic coefficients of the highest resolution model.</p>
The Impact of a Pressurized Regional Sea or Global Ocean on Stresses on Enceladus: Numerical models
<p>Comsol Multiphysics models solving the stress field in Enceladus' ice shell when a regional sea of global ocean is pressurized.</p> <p>Model parameters are included as part of the file name according to the template EnceladusT<em>t</em>D<em>d</em><em>Label</em>.mph with</p> <ul> <li><em>t</em> is the ice shell thickness</li> <li><em>d</em> is the thickness of the south polar sea or indentation</li> <li><em>Label </em>indicates model configuration <ul> <li><em>Fixed</em>: The base of the ice shell (outside the south polar sea) is in contact with the core with a no-slip boundary condition</li> <li><em>Roller</em>: The base of the ice shell (outside the south polar sea) is in contact with the core with a free-slip boundary condition</li> <li><em>Ocean</em>: The base of the ice shell is floating with a constant pressure condition; there is a single indentation at the South pole</li> <li><em>North</em>: The base of the ice shell is floating with a constant pressure condition; there are indentations at both poles, with the north pole indentation having half the thickness of the South pole indentation</li> </ul> </li> </ul> <p>There are two solved datasets in each model. The first uses a default value of the ocean angle (40°). The second results from a parameter sweep in which the sea angle varies systematically in increments of 2°.</p>
A Novel Approach to Impact Crater Mapping and Analysis on Enceladus, using Machine Learning: Supplemental data
<p>This dataset includes the crater map and equatorial crater depths and diameters presented in the paper: A Novel Approach to Impact Crater Mapping and Analysis on Enceladus, using Machine Learning.</p>
Spherical harmonic models of the gravity field of Enceladus
<p>This archive contains previously published models of the gravitational field of Saturn's moon Enceladus.</p> <ul> <li>Iess2014.sh (SOL1)</li> <li>Park2024.sh (Case 2)</li> </ul> <p>All models make use of unnormalized spherical harmonic functions that exclude the Condon-Shortley phase factor of (-1)^m.</p>
LILBID spectra and geochemical data shown in article "Detection of Phosphates Originating from Enceladus' Ocean" by Frank Postberg et al. (2023)
<p>Laser Induced Liquid Beam Ion Desorption (LILBID) mass spectra of phosphates and data of geochemical experiments, shown in article "Detection of Phosphates Originating from Enceladus’ Ocean" by Frank Postberg et al. (2023), published in Nature.</p>
The data files for the article "Impact of the core deformation on the tidal heating and flow in Enceladus' subsurface ocean"
<p>The data are given for each figure and each file contains a header regarding information on the columns in the data files. </p>
Ocean weather systems on icy moons, with application to Enceladus
Open the record for dataset details and reuse information.
Dataset for Estimating the 3D structure of the Enceladus ice shell from flexural and Crary waves
<p>Data for the publication "Estimating the 3D structure of the Enceladus ice shell from flexural and Crary waves" Includes sac files for 4 different velocity models at two sources. The naming convention is based on the location of the receiver and the component (e.g.) N85100..XDE is North 85 degree, 100 degrees, East component). Each model also has the outputs of the mineos code which provides the surface wave dispersion. </p>
The Geological History of Enceladus' Cratered Terrains
<div> <p>This dataset includes shapefiles compatible with a geographical information system that were used to define regions of interest (ROI), areas for calculating crater size-frequency distributions, and mapped craters and fractures within each ROI.</p> </div>
Metal limiting habitability in Enceladus? Availability of trace metals for methanogenic life in hydrothermal fluids [Dataset]
<p>All measurement and calculation data are uploaded.</p> <p>Version 4 was uploaded on 2024-11-06 for revision.</p> <p>The file name "T24_calculation_data_Fig9_Fig10.xlsx" and a description in the file for Figure 9 have been modified in order to correctly correspond to the figure. *The previous file name "T24_calculation_data_Fig8_Fig10.xlsx".</p>
Inferred tidal heating distribution and internal structure of Tethys and Enceladus
Open the record for dataset details and reuse information.
Enceladus Carbonation Model Data
<p>Model results used to make figures in the paper.</p>
Influence of lateral shear on the formation of Enceladus' South Polar Terrain (data)
<p>This repository contains the numerical results of case {0.8, 25, 40} as well as the parameter file and the plugin files for the modeling. The finite element code elASPECT that runs the model is available at https://github.com/YiminJin/elaspect. One can reproduce all the results presented in the paper by modifying the parameter entries "Ice thickness", "Maximum depression", "Outer radius" and "Inner radius".</p>
Model files and output seismograms for Seismic Wavefield Modelling of Enceladus: challenges and opportunities presented by a 3D ice shell (Dapré & Irving)
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Radar Attenuation in Enceladus' Ice Shell: Obstacles and Opportunities for Constraining Shell Thickness, Chemistry, and Thermal Structure
<p>Figures data for submission of paper ``Radar Attenuation in Enceladus' Ice Shell: Obstacles and Opportunities for Constraining Shell Thickness, Chemistry, and Thermal Structure'' by Ondrej Soucek, Marie Behounkova, Dustin M. Schroeder, Natalie S. Wolfenbarger, Klara Kalousova, Gregor Steinbruegge and Krista M. Soderlund.</p>
Enceladus Results
Here are some results from the Spectra Decomposition Algorithm on infrared spectral images of Saturn's moon Enceladus. Figure 1 is the spatial contribution of the 2nd component. Notice the hot spot in red around the bottom left hand side. The hot spot correspond to a higher contribution of this component located at the "tiger scratch" features on the moon. Figure 2 is the spectral component, which exhibits a pattern that indicates absorption of light due to the presence of CO2.
Gazetteer of Planetary Nomenclature: Saturnian System: Enceladus
These images display several of Saturn's moons approved by the International Astronomical Union (IAU).
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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.