Data

5028 Block 1 (Southwest) Grid of the Digital Elevation Model (DEM) derived from the radar altimeter and GNSS

Geoscience Australia
Geophysical Acquisition & Processing Section
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.26186/151004&rft.title=5028 Block 1 (Southwest) Grid of the Digital Elevation Model (DEM) derived from the radar altimeter and GNSS&rft.identifier=10.26186/151004&rft.publisher=Commonwealth of Australia (Geoscience Australia)&rft.description=A Digital Elevation Model (DEM) is a 3D representation of terrain elevation. It is derived from the radar altimeter and GNSS on the Survey aircraft. The GNSS height measurements are geoidal values derived using the Australian Vertical Working Surface (AVWS). This survey was acquired under the project No. 5028 for the Geological Survey of Western Australia (GSWA). The grid has a cell size of 0.000204 degrees (approximately 20m). The data are given in units of meters.Maintenance and Update Frequency: asNeededStatement: This 5028 Block 1 (Southwest) Grid of the Digital Elevation Model (DEM) derived from the radar altimeter and GNSS is elevation data for the Narryer acquired under the project No. 5028 for the geological survey of Western Australia. The grid has a cell size of degrees (approximately 20m). This grid contains the ground elevation values relative to the geoid for the Narryer. It represents the vertical distance from a location on the Earth's surface to the geoid. The data are given in units of meters. The processed data are checked by GA geophysicists using standard methods for assessing quality to ensure that the final data are fit-for-purpose.&rft.creator=Geophysical Acquisition & Processing Section &rft.date=2026&rft.coverage=westlimit=115.72807215979253; southlimit=-27.01417600652879; eastlimit=116.74480089326238; northlimit=-25.849948790562202; projection=GDA94 (EPSG:4283)&rft.coverage=westlimit=115.72807215979253; southlimit=-27.01417600652879; eastlimit=116.74480089326238; northlimit=-25.849948790562202; projection=GDA94 (EPSG:4283)&rft_rights=Creative Commons Attribution 4.0 International Licence https://creativecommons.org/licenses/by/4.0/&rft_rights=© Commonwealth of Australia (Geoscience Australia) and State of Western Australia (Department of Mines, Industry Regulation and Safety) 2026&rft_rights=Australian Government Security Classification System https://www.protectivesecurity.gov.au/publications-library/policy-8-classification-system&rft_subject=geoscientificInformation&rft_subject=EARTH SCIENCES&rft_subject=NCI&rft_subject=Earth sciences&rft_subject=geophysics&rft_subject=grid&rft_subject=Australia&rft_subject=Western Australia&rft_subject=survey 5028&rft_subject=GADDS2.0&rft_subject=DEM&rft_subject=Elevation&rft_subject=terrain&rft_subject=digital data&rft_subject=geophysical survey&rft_subject=geoid&rft_subject=raster&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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Creative Commons Attribution 4.0 International Licence
https://creativecommons.org/licenses/by/4.0/

© Commonwealth of Australia (Geoscience Australia) and State of Western Australia (Department of Mines, Industry Regulation and Safety) 2026

Australian Government Security Classification System
https://www.protectivesecurity.gov.au/publications-library/policy-8-classification-system

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Full description

A Digital Elevation Model (DEM) is a 3D representation of terrain elevation. It is derived from the radar altimeter and GNSS on the Survey aircraft. The GNSS height measurements are geoidal values derived using the Australian Vertical Working Surface (AVWS). This survey was acquired under the project No. 5028 for the Geological Survey of Western Australia (GSWA). The grid has a cell size of 0.000204 degrees (approximately 20m). The data are given in units of meters.

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Maintenance and Update Frequency: asNeeded
Statement: This 5028 Block 1 (Southwest) Grid of the Digital Elevation Model (DEM) derived from the radar altimeter and GNSS is elevation data for the Narryer acquired under the project No. 5028 for the geological survey of Western Australia. The grid has a cell size of degrees (approximately 20m). This grid contains the ground elevation values relative to the geoid for the Narryer. It represents the vertical distance from a location on the Earth's surface to the geoid. The data are given in units of meters. The processed data are checked by GA geophysicists using standard methods for assessing quality to ensure that the final data are fit-for-purpose.

Notes

Purpose
Magnetic and radiometric data are types of geophysical information primarily used to map geology. The data will have applications in mineral, energy, and groundwater exploration as well as environmental studies.

Modified: 05 05 2026

Data time period: 2026-02-25 to 2026-02-25

This dataset is part of a larger collection

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116.7448,-25.84995 116.7448,-27.01418 115.72807,-27.01418 115.72807,-25.84995 116.7448,-25.84995

116.23643652653,-26.432062398545

text: westlimit=115.72807215979253; southlimit=-27.01417600652879; eastlimit=116.74480089326238; northlimit=-25.849948790562202; projection=GDA94 (EPSG:4283)

Subjects
Australia | DEM | EARTH SCIENCES | Earth sciences | Elevation | GADDS2.0 | NCI | Published_External | Western Australia | digital data | geoid | geophysical survey | geophysics | geoscientificInformation | grid | raster | survey 5028 | terrain |

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Other Information
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 5028 Block 1 (Southwest) Grid of the Digital Elevation Model (DEM) derived from the radar altimeter and GNSS (5028 Block 1 (Southwest) Grid of the Digital Elevation Model (DEM) derived from the radar altimeter and GNSS file download)

url : https://thredds.nci.org.au/thredds/fileServer/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/WA/grid/P5028/P5028_1_DEM_radar.nc

NetCDF Subsetting Service (NCSS) for 5028 Block 1 (Southwest) Grid of the Digital Elevation Model (DEM) derived from the radar altimeter and GNSS (5028 Block 1 (Southwest) Grid of the Digital Elevation Model (DEM) derived from the radar altimeter and GNSS NCSS)

url : https://thredds.nci.org.au/thredds/ncss/grid/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/WA/grid/P5028/P5028_1_DEM_radar.nc/dataset.html

OPeNDAP web service for 5028 Block 1 (Southwest) Grid of the Digital Elevation Model (DEM) derived from the radar altimeter and GNSS (5028 Block 1 (Southwest) Grid of the Digital Elevation Model (DEM) derived from the radar altimeter and GNSS OPeNDAP)

url : https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/WA/grid/P5028/P5028_1_DEM_radar.nc.html

OGC Web Mapping Service (WMS) for 5028 Block 1 (Southwest) Grid of the Digital Elevation Model (DEM) derived from the radar altimeter and GNSS (5028 Block 1 (Southwest) Grid of the Digital Elevation Model (DEM) derived from the radar altimeter and GNSS WMS)

url : https://thredds.nci.org.au/thredds/wms/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/WA/grid/P5028/P5028_1_DEM_radar.nc?service=WMS&version=1.3.0&request=GetCapabilities

OGC Web Coverage Service (WCS) for 5028 Block 1 (Southwest) Grid of the Digital Elevation Model (DEM) derived from the radar altimeter and GNSS (5028 Block 1 (Southwest) Grid of the Digital Elevation Model (DEM) derived from the radar altimeter and GNSS WCS)

url : https://thredds.nci.org.au/thredds/wcs/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/WA/grid/P5028/P5028_1_DEM_radar.nc?service=WCS&version=1.0.0&request=GetCapabilities

5028 Block 1 (Southwest) Grid of the Digital Elevation Model (DEM) derived from the radar altimeter and GNSS NCSS

url : https://thredds.nci.org.au/thredds/ncss/grid/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/WA/grid/P5028/P5028_1_DEM_radar.nc/dataset.html

5028 Block 1 (Southwest) Grid of the Digital Elevation Model (DEM) derived from the radar altimeter and GNSS OPeNDAP

url : https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/WA/grid/P5028/P5028_1_DEM_radar.nc.html

5028 Block 1 (Southwest) Grid of the Digital Elevation Model (DEM) derived from the radar altimeter and GNSS WMS

url : https://thredds.nci.org.au/thredds/wms/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/WA/grid/P5028/P5028_1_DEM_radar.nc?service=WMS&version=1.3.0&request=GetCapabilities

5028 Block 1 (Southwest) Grid of the Digital Elevation Model (DEM) derived from the radar altimeter and GNSS WCS

url : https://thredds.nci.org.au/thredds/wcs/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/WA/grid/P5028/P5028_1_DEM_radar.nc?service=WCS&version=1.0.0&request=GetCapabilities

Identifiers
ACN 633 798 857