06ce0634-8c58-47e4-b820-e5ece9cf79fc urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2025-10-16T15:36:44 creation ISO 19115 2016 Cobar P5009 EXT 2 dose rate grid 06ce0634-8c58-47e4-b820-e5ece9cf79fc The radiometric, or gamma-ray spectrometric method, measures the natural variations in the gamma-rays detected near the Earth's surface as the result of the natural radioactive decay of potassium (K), uranium (U) and thorium (Th). The data collected 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. The terrestrial dose rate grid is derived as a linear combination of the filtered K, U and Th grids. A low pass filter is applied to this grid to generate the filtered terrestrial dose rate grid. This Cobar P5009 EXT 2 dose rate grid has a cell size of 0.00039074 degrees (approximately 40m) and shows the terrestrial dose rate of the Cobar Magnetic and Radiometric Survey, 2021. The data used to produce this grid was acquired in 2021 by the NSW Government, and consisted of 53617 line-kilometres of data at 200m line spacing and 60m terrain clearance. {"type": "Polygon", "coordinates": [[[145.1, -33.1], [147.1, -33.1], [147.1, -31.1], [145.1, -31.1], [145.1, -33.1]]]} 145.1 147.1 -33.1 -31.1 Australia EARTH SCIENCES Earth sciences GADDS2.0 K NASVD NCI NSW Published_External Th U airborne digital data dose dose rate gamma-ray geophysical survey geophysics grid potassium rad radiometrics raster rate spectrometry survey 5009 thorium uranium File available for download in various formats from the GADDS2 portal documentDigital 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. HTML Cobar P5009 EXT 2 dose rate grid file download documentDigital File download for Cobar P5009 EXT 2 dose rate grid application/x-netcdf Cobar P5009 EXT 2 dose rate grid NCSS documentDigital NetCDF Subsetting Service (NCSS) for Cobar P5009 EXT 2 dose rate grid HTML Cobar P5009 EXT 2 dose rate grid OPeNDAP documentDigital OPeNDAP web service for Cobar P5009 EXT 2 dose rate grid HTML Cobar P5009 EXT 2 dose rate grid WMS documentDigital OGC Web Mapping Service (WMS) for Cobar P5009 EXT 2 dose rate grid WMS Cobar P5009 EXT 2 dose rate grid WCS documentDigital OGC Web Coverage Service (WCS) for Cobar P5009 EXT 2 dose rate grid WCS