Data

Georges River (Sydney Region) 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=https://pid.geoscience.gov.au/dataset/ga/149688&rft.title=Georges River (Sydney Region) Digital Elevation Model&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/149688&rft.publisher=Commonwealth of Australia (Geoscience Australia)&rft.description=The Georges River (Sydney Region) 5m Digital Elevation Model (DEM) is generated from all relevant data available on 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 from a total of 989 datasets sourced from multiple providers including State and Territory Governments. The capture dates for input data range from 2011/02/26 - 2021/06/05. See Table 1 below for further information. The area covers the land mass of the Georges River (Sydney Region) 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. Bilinear 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. Near shore bathymetry has not been included in the dataset due to insufficient coverage.&rft.creator=Weales, J. &rft.creator=Coghlan, R. &rft.date=2024&rft.coverage=westlimit=151.00; southlimit=-34.00; eastlimit=151.00; northlimit=-34.00; projection=GDA2020 / MGA zone 56 / projected (EPSG: 7856)&rft.coverage=westlimit=151.00; southlimit=-34.00; eastlimit=151.00; northlimit=-34.00; projection=GDA2020 / MGA zone 56 / projected (EPSG: 7856)&rft.coverage=uplimit=449; downlimit=-47; projection=Australian Height Datum / vertical (EPSG: 5111)&rft.coverage=uplimit=449; downlimit=-47; projection=Australian Height Datum / vertical (EPSG: 5111)&rft_rights= https://creativecommons.org/licenses/by/4.0/&rft_rights=Creative Commons Attribution 4.0 International Licence&rft_rights=CC-BY&rft_rights=4.0&rft_rights=Any&rft_rights=Any&rft_rights=(c) Commonwealth of Australia (Geoscience Australia) 2024&rft_rights=Australian Government Security Classification System&rft_rights=https://www.protectivesecurity.gov.au/Pages/default.aspx&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Australian Government Security Classification System&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/by/4.0&rft_subject=geoscientificInformation&rft_subject=catchment&rft_subject=dem&rft_subject=elevation&rft_subject=Georges&rft_subject=Sydney&rft_subject=Elevation&rft_subject=flood&rft_subject=DEM&rft_subject=Earth and space science informatics&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
Cite Saved to MyRDA Save to MyRDA

Licence & Rights:

Open Licence view details
CC-BY

https://creativecommons.org/licenses/by/4.0/

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

Creative Commons Attribution 4.0 International Licence

CC-BY

4.0

Any

Any

(c) Commonwealth of Australia (Geoscience Australia) 2024

Australian Government Security Classification System

https://www.protectivesecurity.gov.au/Pages/default.aspx

WWW:LINK-1.0-http--link

Australian Government Security Classification System

Access:

Open

Contact Information



Brief description

The Georges River (Sydney Region) 5m Digital Elevation Model (DEM) is generated from all relevant data available on 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 from a total of 989 datasets sourced from multiple providers including State and Territory Governments. The capture dates for input data range from 2011/02/26 - 2021/06/05. See Table 1 below for further information. The area covers the land mass of the Georges River (Sydney Region) 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. Bilinear 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.
Near shore bathymetry has not been included in the dataset due to insufficient coverage.

Notes

Purpose
Provide a single elevation dataset for the Georges River (Sydney Region) catchment.

Created: 20 06 2024

Issued: 12 07 2024

Data time period: 2011-02-26 to 2021-06-05

This dataset is part of a larger collection

Click to explore relationships graph
Help

Related Organisations

Related People

151,-34

151,-34

text: westlimit=151.00; southlimit=-34.00; eastlimit=151.00; northlimit=-34.00; projection=GDA2020 / MGA zone 56 / projected (EPSG: 7856)

text: uplimit=449; downlimit=-47; projection=Australian Height Datum / vertical (EPSG: 5111)

Subjects
DEM | Earth and space science informatics | Elevation | Georges | Published_External | Sydney | catchment | dem | elevation | flood | geoscientificInformation |

User Contributed Tags    

Login to tag this record with meaningful keywords to make it easier to discover

Other Information
Link to the Elevation Information System (ELVIS)

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

Download Metadata Statement (pdf) [1.0 MB]

uri : https://d28rz98at9flks.cloudfront.net/149688/149688_00_0.pdf

Download DEM Metadata (zip) [2.0 MB]

uri : https://d28rz98at9flks.cloudfront.net/149688/149688_01_0.zip

Download Georges River Mosaic-DEM-AHD 5m 56 (zip) [291 MB]

uri : https://elevation.ga.gov.au/5m-dem/drainage_basins/GeorgesRiverMosaic-DEM-AHD-5m_56_201102-202106.zip

Identifiers
Similar data you may be interested in: