Folder: 72204

R72204 Magnetic grid merge of WA (latest version)

GSWA has generated magnetic anomaly grid compilations at 80, 40 and 20 metres in cell size by merging grids from Federal and State Government datasets, acquired with a line spacing of 500 metres or less, and from more than 1600 open file company datasets at various line spacings. The Geoscience Australia magnetic grid of Australia V6 2015 is used as a base reference grid and also to fill in any background areas where closer spaced data is not available.

All products are in GDA2020 Datum.

Folders contain (not all products are available for all cell sizes):

• Image files in JP2 and KMZ formats
• Total magnetic intensity (TMI) grid
• Reduced to pole (RTP) of TMI grid (80m and 40m)
• First vertical derivative (1VD) of TMI grid (80m and 40m)
• Multi-scale edges (worms) in vector formats (80m)
• Metadata for grids and images

Sub-folders