South Australia Gravity 2023 – statewide gravity dataset update.
Created: 31 Oct 2024 Revised: 20 Dec 2024

The 2023 gravity grid of South Australia was gridded from 802,178 ground gravity stations out of a total of 889,282 stations, extracted from the South Australian gravity database. Of the total stations included in the gridding process, 783,786 are...

The 2023 gravity grid of South Australia was gridded from 802,178 ground gravity stations out of a total of 889,282 stations, extracted from the South Australian gravity database. Of the total stations included in the gridding process, 783,786 are within South Australian borders. The gridding utilised the supervised variable density gridding methodology (Katona 2017). Duplicate stations (repeats) and stations interpreted as unsuitable for gridding were not included in the processing. The SA Geodata ‘grid flag’ was updated for all stations in the database to enable stakeholders to filter out stations deemed unsuitable for regional gridding. The data package includes grids at 100m, 200m, 400m and 800m cell size, all clipped to the same extent as the 2022 TMI series of grids. Filtered grid products derived from the 100m grid include 1st vertical derivative (1VD), upward continuation of 1000m and a residual grid derived by subtracting the 1000m upward continued grid from the 100m gravity grid. The Bouguer anomaly calculation used a spherical cap model and the units of the grid are ?m/sec2. This supersedes the previous version; 'Gridding of South Australian ground gravity data, using the Supervised Variable Density Method'.

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About this record

Record No mesac30221
Topic Geoscientific Information
Type of Resource Dataset
Category Type
Document Type
Contributor
Sponsor
Tenement
Tenement Holder
Operator
Geological Province
    Other
    Mine Name
    Stratigraphy
    Commodity
      Notes
      Notes: Data package includes Report Book 2023/00028;NIR307c
      Doc No: GDP 00122

      Notes: Data package includes Report Book 2023/00028;NIR307c Doc No: GDP 00122

      Language English
      Metadata Standard ISO 19115-3

      Citations

      Use constraints License
      License Creative Commons Attribution 4.0
      Persistent identifier https://pid.sarig.sa.gov.au/dataset/mesac30221
      Citation Katona, L.F.;Heath, P.J. South Australia Gravity 2023 – statewide gravity dataset update.
      https://pid.sarig.sa.gov.au/dataset/mesac30221

      Technical information

      Status
      Maintenance and Update Frequency
      Geographic Reference GDA2020 (EPSG:7844)
      Geo bounding box {"type":"Polygon","coordinates":[[[129,-39],[141,-39],[141,-26],[129,-26],[129,-39]]]}
      Purpose
      
                          
                          
      
                          
                        
      Lineage
      
                          
                          
      
                          
                        

      Attribute details