Clip 'n Ship
ORMGP partners can gain access to the spatial layers we produce. Users specify a small, rectangular area, inside which a 3D block of the geologic data is provided. The specified area must not exceed 18 square kilometre (the user will get a warning if the specified rectangular area exceedss this).
The first part is the clipping function. This is where the user supplies the areal extent of their data request, and the return is all the data available within those extents.
The ship feature then provides a compressed file with all available data for download.
The data format chosen for the exports is compressible and efficient. The files formats are thus less common, yet are general enough that they’ll open on common GIS platforms. Data are compressed into a tar.gz file, which can be opened using free and open software such as 7-Zip and WinRAR.
Rasters are provided in a band interleaved by line (*.bil) format. This is a raw binary format and is accompanied by header file (*.hdr) and a projection file (*.prj). Files will open in ArcGIS, QGIS, Surfer and will load as a NumPy array.
Vector files (in particular polylines and polygons) are provided in GeoJson (*.geojson) format. This is an all-encompassing ascii-format file which is flexible, but slow. It is suggested that files be converted to shapefiles (*.shp) when performance is desired.
Point data, database queries, are provided in comma-separated value (*.csv) format.
How to Cite
“Oak Ridges Moraine Groundwater Program Website (Oakridgeswater.ca) 2023. Accessed mm/dd/yyyy”
Geologic Model layers follow a pattern: WB_2021_
WB_2021_01_GROUND_SURFACE_20211027-crop.bilis the first, or uppermost geologic layer (01) and represents the ground surface
WB_2021_02_HALTON_TILL_EQUIV_20211027-crop.bilis the top of the second geologic layer (02) and represents the top of the Halton Till
WB_2021_09C_THORNCLIFFE_ISOPACH_20220808-crop.bilis the isopach (thickness) map of the Thorncliffe llayer (09)
Each geologic layer includes a set of bil, hdr, and prj files for both the layer top and the isopach.
Database Queries (*.csv)
The following five csv files provide results from database queries for the user-selected polygon.
- Contains a list of all georeferenced documents and includes information such as: report name, year, author and location coordinates
- Contains a list of all locations. This table includes information such as: location ID and names, type, top/bottom elevation, coordinates
- Contains geologic records at locations within the selected polygon including: location ID, geologic descriptions, geologic interval top/botton elevation, location coordinates
- Contains hydrogeological data at locations within the selected area including: location ID, screen interval, geologic formation, location coordinates
- Contains a list of information of all permits to take water (PTTWs) with the selected area including: location ID, location coordiantes, maximum permitted rate, date issued
- Water Table Mapping (more info here)) (metadata here)
- The naming convention is as follows:
- The first code is either DP (deep) or SH (shallow) water levels
- The second code is WL (for water levels)
- The third term is either ELEV (for the water level elevation) or DEPTH (for water level depth below ground surface)
- The next term is either BHS (for the (WTO surface) ) or Combined (For the (WT1 surface)). Note that for the deep (DP) water levels, this term is not included).
- DA refers to potential discharge areas.
- Interpolated daily climatology given to the centroid of the area selected, tabular (*.csv) format.
owrc20-50-noGreatLake-HC-observations-trim-FINAL-elevation.bil—“Hydrologically corrected” digital elevation model.
- Land use (data sources)
solrisv3_10_infilled_50_percov.bil—fraction canopy cover
solrisv3_10_infilled_50_perimp.bil—fraction impervious cover
solrisv3_10_infilled_50_perow.bil—fraction open water cover
solrisv3_10_infilled_50_perwl.bil—fraction wetland cover