Data

South Coast Digital Elevation Model

Geoscience Australia
Weales, J. ; Coghlan, R.
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:doi10.26186/150586&rft.title=South Coast Digital Elevation Model&rft.identifier=10.26186/150586&rft.publisher=Commonwealth of Australia (Geoscience Australia)&rft.description=The South Coast 5m Digital Elevation Model (DEM) is generated from all relevant data available in the Elvis - Elevation and Depth - Foundation Spatial Data (Elvis) platform with a resolution of 5 Metres or higher. Source datasets with a resolution higher than 5m have been resampled to 5m.This elevation model is generated using 1556 datasets from a total of 6201 datasets sourced from multiple providers including State and Territory Governments. The capture dates for input data range from 25/03/2009 - 08/08/2022. See Table 1 below for further information.The area covers the land mass of the South Coast drainage basin as defined by the Bureau of Meteorology Geofabric.Maintenance and Update Frequency: asNeededStatement: A 10m buffer was applied to the extent of the drainage basin to ensure overlap with neighbouring basins. Datasets available in the Elvis platform that intersected the buffered basin area were downloaded. Where multiple datasets overlapped, the cell value from the most recently captured data was used.As required, individual tiles were resampled to 5m resolution, reprojected to GDA2020 and aligned to the whole 5m grid value to ensure cell alignment between datasets. Nearest neighbour resampling method was used for each of these steps.Tiles were then mosaicked to form a single raster output. In some areas small holes were present in the mosaicked product due to the input tiles not aligning or overlapping completely. Data gaps less than or equal to 15m (3 cells) were filled by interpolation. Cells within larger data gaps were assigned “no data” values in the output mosaic.&rft.creator=Weales, J. &rft.creator=Coghlan, R. &rft.date=2025&rft.coverage=westlimit=153.12; southlimit=-28.28; eastlimit=153.56; northlimit=-27.64; projection=GDA2020 / MGA zone 56 / projected (EPSG: 7856)&rft.coverage=westlimit=153.12; southlimit=-28.28; eastlimit=153.56; northlimit=-27.64; projection=GDA2020 / MGA zone 56 / projected (EPSG: 7856)&rft.coverage=uplimit=0; downlimit=0; projection=Australian Height Datum / vertical (EPSG: 5111)&rft.coverage=uplimit=0; downlimit=0; projection=Australian Height Datum / vertical (EPSG: 5111)&rft_rights=Creative Commons Attribution 4.0 International Licence https://creativecommons.org/licenses/by/4.0/&rft_rights=© Commonwealth of Australia (Geoscience Australia) 2025&rft_rights=Australian Government Security Classification System https://www.protectivesecurity.gov.au/publications-library/policy-8-classification-system&rft_subject=geoscientificInformation&rft_subject=flood&rft_subject=DEM - Digital Elevation Model&rft_subject=Elevation&rft_subject=catchment&rft_subject=model&rft_subject=South Coast&rft_subject=Earth and space science informatics&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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CC-BY

Creative Commons Attribution 4.0 International Licence
https://creativecommons.org/licenses/by/4.0/

© Commonwealth of Australia (Geoscience Australia) 2025

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

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Full description

The South Coast 5m Digital Elevation Model (DEM) is generated from all relevant data available in the Elvis - Elevation and Depth - Foundation Spatial Data (Elvis) platform with a resolution of 5 Metres or higher. Source datasets with a resolution higher than 5m have been resampled to 5m.

This elevation model is generated using 1556 datasets from a total of 6201 datasets sourced from multiple providers including State and Territory Governments. The capture dates for input data range from 25/03/2009 - 08/08/2022. See Table 1 below for further information.

The area covers the land mass of the South Coast drainage basin as defined by the Bureau of Meteorology Geofabric.

Lineage

Maintenance and Update Frequency: asNeeded
Statement:
A 10m buffer was applied to the extent of the drainage basin to ensure overlap with neighbouring basins. Datasets available in the Elvis platform that intersected the buffered basin area were downloaded. Where multiple datasets overlapped, the cell value from the most recently captured data was used.
As required, individual tiles were resampled to 5m resolution, reprojected to GDA2020 and aligned to the whole 5m grid value to ensure cell alignment between datasets. Nearest neighbour resampling method was used for each of these steps.
Tiles were then mosaicked to form a single raster output. In some areas small holes were present in the mosaicked product due to the input tiles not aligning or overlapping completely. Data gaps less than or equal to 15m (3 cells) were filled by interpolation. Cells within larger data gaps were assigned “no data” values in the output mosaic.

Notes

Purpose
To provide a single Elevation Model for the South Coast Catchment.

Created: 26 09 2025

Issued: 26 09 2025

Data time period: 2009-03-25 to 2022-08-08

This dataset is part of a larger collection

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153.56,-27.64 153.56,-28.28 153.12,-28.28 153.12,-27.64 153.56,-27.64

153.34,-27.96

text: westlimit=153.12; southlimit=-28.28; eastlimit=153.56; northlimit=-27.64; projection=GDA2020 / MGA zone 56 / projected (EPSG: 7856)

text: uplimit=0; downlimit=0; projection=Australian Height Datum / vertical (EPSG: 5111)

Subjects
DEM - Digital Elevation Model | Earth and space science informatics | Elevation | Published_External | South Coast | catchment | flood | geoscientificInformation | model |

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Other Information
Download the Metadata Statement (pdf) [1.0 MB]

url : https://d28rz98at9flks.cloudfront.net/150586/150586_00_0.pdf

Download SouthCoastMosaic-DEM-AHD-5m_56_201107-202209 (zip) [222 MB]

url : https://elevation.ga.gov.au/5m-dem/drainage_basins/SouthCoastMosaic-DEM-AHD-5m_56_201107-202209.zip

Link to Elevation Information System (ELVIS)

url : https://elevation.fsdf.org.au/

Drainage Catchment Digital Elevation Model Collection

url : https://pid.geoscience.gov.au/dataset/ga/150163

Identifiers
ACN 633 798 857