Dataset for: Bedding scale correlation on Mars in western Arabia Terra
- 1. Caltech, Johns Hopkins University
- 2. Johns Hopkins University
- 3. Northern Arizona University
Description
Dataset for: Bedding scale correlation on Mars in western Arabia Terra
A.M. Annex et al.
Data Product Overview
This repository contains all source data for the publication. Below is a description of each general data product type, software that can load the data, and a list of the file names along with the short description of the data product.
HiRISE Digital Elevation Models (DEMs).
HiRISE DEMs produced using the Ames Stereo Pipeline are in geotiff format ending with ‘*X_0_DEM-adj.tif’, the “X” prefix denotes the spatial resolution of the data product in meters. Geotiff files are able to be read by free GIS software like QGIS.
HiRISE map-projected imagery (DRGs).
Map-projected HiRISE images produced using the Ames Stereo Pipeline are in geotiff format ending with ‘*0_Y_DRG-cog.tif’, the “Y” prefix denotes the spatial resolution of the data product in centimeters. Geotiff files are able to be read by free GIS software like QGIS. The DRG files are formatted as COG-geotiffs for enhanced compression and ease of use.
3D Topography files (.ply).
Traingular Mesh versions of the HiRISE/CTX topography data used for 3D figures in “.ply” format. Meshes are greatly geometrically simplified from source files. Topography files can be loaded in a variety of open source tools like ParaView and Meshlab. Textures can be applied using embedded texture coordinates.
3D Geological Model outputs (.vtk)
VTK 3D file format files of model output over the spatial domain of each study site. VTK files can be loaded by ParaView open source software. The “block” files contain the model evaluation over a regular grid over the model extent. The “surfaces” files contain just the bedding surfaces as interpolated from the “block” files using the marching cubes algorithm.
Geological Model geologic maps (geologic_map.tif).
Geologic maps from geological models are standard geotiffs readable by conventional GIS software. The maximum value for each geologic map is the “no-data” value for the map. Geologic maps are calculated at a lower resolution than the topography data for storage efficiency.
Beds Geopackage File (.gpkg).
Geopackage vector data file containing all mapped layers and associated metadata including dip corrected bed thickness as well as WKB encoded 3D linestrings representing the sampled topography data to which the bedding orientations were fit. Geopackage files can be read using GIS software like QGIS and ArcGIS as well as the OGR/GDAL suite. A full description of each column in the file is provided below.
Column | Type | Description |
---|---|---|
uuid | String | unique identifier |
stratum_order | Real | 0-indexed bed order |
section | Real | section number |
layer_id | Real | bed number/index |
layer_id_bk | Real | unused backup bed number/index |
source_raster | String | dem file path used |
raster | String | dem file name |
gsd | Real | ground sampling distant for dem |
wkn | String | well known name for dem |
rtype | String | raster type |
minx | Real | minimum x position of trace in dem crs |
miny | Real | minimum y position of trace in dem crs |
maxx | Real | maximum x position of trace in dem crs |
maxy | Real | maximum y position of trace in dem crs |
method | String | internal interpolation method |
sl | Real | slope in degrees |
az | Real | azimuth in degrees |
error | Real | maximum error ellipse angle |
stdr | Real | standard deviation of the residuals |
semr | Real | standard error of the residuals |
X | Real | mean x position in CRS |
Y | Real | mean y position in CRS |
Z | Real | mean z position in CRS |
b1 | Real | plane coefficient 1 |
b2 | Real | plane coefficient 2 |
b3 | Real | plane coefficient 3 |
b1_se | Real | standard error plane coefficient 1 |
b2_se | Real | standard error plane coefficient 2 |
b3_se | Real | standard error plane coefficient 3 |
b1_ci_low | Real | plane coefficient 1 95% confidence interval low |
b1_ci_high | Real | plane coefficient 1 95% confidence interval high |
b2_ci_low | Real | plane coefficient 2 95% confidence interval low |
b2_ci_high | Real | plane coefficient 2 95% confidence interval high |
b3_ci_low | Real | plane coefficient 3 95% confidence interval low |
b3_ci_high | Real | plane coefficient 3 95% confidence interval high |
pca_ev_1 | Real | pca explained variance ratio pc 1 |
pca_ev_2 | Real | pca explained variance ratio pc 2 |
pca_ev_3 | Real | pca explained variance ratio pc 3 |
condition_number | Real | condition number for regression |
n | Integer64 | number of data points used in regression |
rls | Integer(Boolean) | unused flag |
demeaned_regressions | Integer(Boolean) | centering indicator |
meansl | Real | mean section slope |
meanaz | Real | mean section azimuth |
angular_error | Real | angular error for section |
mB_1 | Real | mean plane coefficient 1 for section |
mB_2 | Real | mean plane coefficient 2 for section |
mB_3 | Real | mean plane coefficient 3 for section |
R | Real | mean plane normal orientation vector magnitude |
num_valid | Integer64 | number of valid planes in section |
meanc | Real | mean stratigraphic position |
medianc | Real | median stratigraphic position |
stdc | Real | standard deviation of stratigraphic index |
stec | Real | standard error of stratigraphic index |
was_monotonic_increasing_layer_id | Integer(Boolean) | monotonic layer_id after projection to stratigraphic index |
was_monotonic_increasing_meanc | Integer(Boolean) | monotonic meanc after projection to stratigraphic index |
was_monotonic_increasing_z | Integer(Boolean) | monotonic z increasing after projection to stratigraphic index |
meanc_l3sigma_std | Real | lower 3-sigma meanc standard deviation |
meanc_u3sigma_std | Real | upper 3-sigma meanc standard deviation |
meanc_l2sigma_sem | Real | lower 3-sigma meanc standard error |
meanc_u2sigma_sem | Real | upper 3-sigma meanc standard error |
thickness | Real | difference in meanc |
thickness_fromz | Real | difference in Z value |
dip_cor | Real | dip correction |
dc_thick | Real | thickness after dip correction |
dc_thick_fromz | Real | z thickness after dip correction |
dc_thick_dev | Integer(Boolean) | dc_thick <= total mean dc_thick |
dc_thick_fromz_dev | Integer(Boolean) | dc_thick <= total mean dc_thick_fromz |
thickness_fromz_dev | Integer(Boolean) | dc_thick <= total mean thickness_fromz |
dc_thick_dev_bg | Integer(Boolean) | dc_thick <= section mean dc_thick |
dc_thick_fromz_dev_bg | Integer(Boolean) | dc_thick <= section mean dc_thick_fromz |
thickness_fromz_dev_bg | Integer(Boolean) | dc_thick <= section mean thickness_fromz |
slr | Real | slope in radians |
azr | Real | azimuth in radians |
meanslr | Real | mean slope in radians |
meanazr | Real | mean azimuth in radians |
angular_error_r | Real | angular error of section in radians |
pca_ev_1_ok | Integer(Boolean) | pca_ev_1 < 99.5% |
pca_ev_2_3_ratio | Real | pca_ev_2/pca_ev_3 |
pca_ev_2_3_ratio_ok | Integer(Boolean) | pca_ev_2_3_ratio > 15 |
xyz_wkb_hex | String | hex encoded wkb geometry for all points used in regression |
Geological Model input files (.gpkg).
Four geopackage (.gpkg) files represent the input dataset for the geological models, one per study site as specified in the name of the file. The files contain most of the columns described above in the Beds geopackage file, with the following additional columns. The final seven columns (azimuth, dip, polarity, formation, X, Y, Z) constituting the actual parameters used by the geological model (GemPy).
Column | Type | Description |
---|---|---|
azimuth_mean | String | Mean section dip azimuth |
azimuth_indi | Real | Individual bed azimuth |
azimuth | Real | Azimuth of trace used by the geological model |
dip | Real | Dip for the trace used by the geological mode |
polarity | Real | Polarity of the dip vector normal vector |
formation | String | String representation of layer_id required for GemPy models |
X | Real | X position in the CRS of the sampled point on the trace |
Y | Real | Y position in the CRS of the sampled point on the trace |
Z | Real | Z position in the CRS of the sampled point on the trace |
Stratigraphic Column Files (.gpkg).
Stratigraphic columns computed from the Geological Models come in three kinds of Geopackage vector files indicated by the postfixes _sc
, rbsc
, and rbssc
. File names include the wkn site name.
sc (_sc.gpkg).
Geopackage vector data file containing measured bed thicknesses from Geological Model joined with corresponding Beds Geopackage file, subsetted partially. The columns largely overlap with the the list above for the Beds Geopackage but with the following additions
Column | Type | Description |
---|---|---|
X | Real | X position of thickness measurement |
Y | Real | Y position of thickness measurement |
Z | Real | Z position of thickness measurement |
formation | String | Model required string representation of bed index |
bed thickness (m) | Real | difference of bed elevations |
azimuths | Real | azimuth as measured from model in degrees |
dip_degrees | Real | dip as measured from model in degrees |
Dip corrected bed thickness (m) | Real | dip corrected bed thickness in meters |
lower_point | Real | lower bed elevation in meters |
upper_point | Real | upper bed elevation in meters |
_formation | Real | integer number of formation string |
layer_iid | Integer64 | integer number of layer_id |
bascom_baryte_diff_bt | Real | diff. in thickness from geomodel measurements |
bascom_baryte_diff_dcbt | Real | diff. in dip cor. thicknesses ’’ |
rbsc (rbsc.gpkg)
Geopackage vector file containing virtual boreholes with high resolution vertical sampling placed in a regular grid in the spatial extent of the DEM with the following columns.
Column | Type | Description |
---|---|---|
formation | String | Model required string representation of bed index |
pred_z | Real | Z value of bedding plane |
layer_id | Integer64 | Bed Index from Beds Geopackage file |
section | Real | section number |
thickness | Real | thickness of the layer predicted by model |
geom | Point | contains X,Y,Z of point in dem CRS |
rbssc (rbssc.gpkg)
Geopackage vector file containing virtual boreholes with high resolution vertical sampling placed at the centroids for each section within the spatial extent of the DEM with the following columns.
Column | Type | Description |
---|---|---|
formation | String | Model required string representation of bed index |
pred_z | Real | Z value of bedding plane |
layer_id | Integer64 | Bed Index from Beds Geopackage file |
section | Real | section number |
thickness | Real | thickness of the layer predicted by model |
geom | Point | contains X,Y,Z of point in dem CRS |
crescent_shapes.gpkg
Geopackage vector file containing the measurements of the crescent features.
Column | Type | Description |
---|---|---|
azimuth | Real | Azimuth of the crescent feature in degrees |
Notes
Files
B18_016657_1881_B19_017013_1881_map_ba_align_18-DEM-adj.tif
Files
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