Full description
Total magnetic intensity (TMI) data measures variations in the intensity of the Earth's magnetic field caused by the contrasting content of rock-forming minerals in the Earth crust. Magnetic anomalies can be either positive (field stronger than normal) or negative (field weaker) depending on the susceptibility of the rock. The data are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.This GSWA P1177 Katanning TMI grid geodetic has a cell size of 0.00083 degrees (approximately 85m). The units are in nanoTesla (or nT). The data used to produce this grid was acquired in 2008 by the WA Government, and consisted of 75805 line-kilometres of data at a line spacing between 100m and 400m, and 60m terrain clearance.
Lineage
Maintenance and Update Frequency: notPlannedCreated: 07 03 2020
Issued: 07 03 2020
Modified: 06 07 2021
Data time period: 03 2008 to 08 11 2008
text: westlimit=117.4872; southlimit=-34.0109; eastlimit=118.013; northlimit=-33.6259; projection=GDA94 (EPSG:4283)
User Contributed Tags
Login to tag this record with meaningful keywords to make it easier to discover
The Geophysical Archive Data Delivery System (GADDS2) portal provides HTTP download of geophysics datasets in a number of formats. Point and line datasets are available in NetCDF and ASEG-GDF2. Grid datasets are available in NetCDF, GeoTIFF and ERS. (File available for download in various formats from the GADDS2 portal)
url :
https://portal.ga.gov.au/persona/gadds![]()
File download for GSWA P1177 Katanning TMI grid geodetic (GSWA P1177 Katanning TMI grid geodetic file download)
NetCDF Subsetting Service (NCSS) for GSWA P1177 Katanning TMI grid geodetic (GSWA P1177 Katanning TMI grid geodetic NCSS)
OPeNDAP web service for GSWA P1177 Katanning TMI grid geodetic (GSWA P1177 Katanning TMI grid geodetic OPeNDAP)
OGC Web Mapping Service (WMS) for GSWA P1177 Katanning TMI grid geodetic (GSWA P1177 Katanning TMI grid geodetic WMS)
OGC Web Coverage Service (WCS) for GSWA P1177 Katanning TMI grid geodetic (GSWA P1177 Katanning TMI grid geodetic WCS)
GSWA P1177 Katanning TMI grid geodetic NCSS
GSWA P1177 Katanning TMI grid geodetic OPeNDAP
GSWA P1177 Katanning TMI grid geodetic WMS
GSWA P1177 Katanning TMI grid geodetic WCS
- URL : pid.geoscience.gov.au/dataset/ga/142988
- global : 02778581-d27c-4c86-b012-e75f5f6657ee
