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Geomorphic risk assessment of the 2022 floods in the Wilsons catchment, NSW

Commonwealth Scientific and Industrial Research Organisation
Khan, Sana ; Walker, Simon
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.25919/7drj-5f89&rft.title=Geomorphic risk assessment of the 2022 floods in the Wilsons catchment, NSW&rft.identifier=https://doi.org/10.25919/7drj-5f89&rft.publisher=Commonwealth Scientific and Industrial Research Organisation&rft.description=This collection comprises geomorphic risk assessment of 2022 floods for Wilsons catchments. This includes: (i) geomorphic risk assessment based on excessive erosion, (ii) geomorphic risk assessment based on change in river behaviour, (iii) geomorphic risk assessment based on sediment imbalance, (iv) total erosion volume across the river corridor at 1km segment, (v) total deposition volume across the river corridor at 1km segment, (vi) net erosion/deposition volume across the river corridor at 1km segment, (vii) characterisation of geomorphic adjustments across the river corridor at 1km segment, (viii) post flood river behaviour characterisation, (ix) DEM of Difference across the river corridor and (x) DEM of Difference across the catchment. The i to viii datasets are in vector format (shapefile) at a spatial resolution of 1km segments using the GDA2020 MGA Zone 56 Australian Albers coordinate projection system. The ix and x are in raster format (GeoTiffs) at a spatial resolution of 1 m × 1 m pixel using the GDA2020 MGA Zone 56 Australian Albers coordinate projection system. These geomorphic risk datasets have been developed using various publicly available datasets: (i) pre and post flood LiDAR DEM (https://elevation.fsdf.org.au/), (ii) pre and post flood high resolution imagery (https://portal.spatial.nsw.gov.au/portal/apps/sites/#/homepage and CSIRO), (iii) post flood bathymetry (https://elevation.fsdf.org.au/) and (iv) stream network with historical geomorphic change characterisation (Khan and Fryirs, 2020). The DEM of Difference was implemented in the Python programming language through a Jupyter Notebook interface (https://jupyter.org/). Read-only versions of the Jupyter Notebook code are included in this collection.Lineage: Please refer to the associated technical report: Geomorphic Risk assessment of the 2022 floods in the Wilsons catchment&rft.creator=Khan, Sana &rft.creator=Walker, Simon &rft.date=2025&rft.edition=v1&rft.relation=https://doi.org/10.1016/j.geomorph.2020.107135&rft.relation=https://doi.org/10.1016/j.catena.2021.105329&rft.coverage=westlimit=153.015405; southlimit=-28.997780000000002; eastlimit=153.5962388888889; northlimit=-28.480001944444442; projection=WGS84&rft_rights=Creative Commons Attribution 4.0 International Licence https://creativecommons.org/licenses/by/4.0/&rft_rights=Data is accessible online and may be reused in accordance with licence conditions&rft_rights=All Rights (including copyright) CSIRO 2025.&rft_subject=catastrophic flooding&rft_subject=geomorphic change&rft_subject=Lismore&rft_subject=LiDAR&rft_subject=erosion&rft_subject=deposition&rft_subject=Adverse weather events&rft_subject=Atmospheric sciences&rft_subject=EARTH SCIENCES&rft_subject=Geomorphology and earth surface processes&rft_subject=Physical geography and environmental geoscience&rft_subject=Environmental assessment and monitoring&rft_subject=Environmental management&rft_subject=ENVIRONMENTAL SCIENCES&rft_subject=Environmental management&rft.type=dataset&rft.language=English Access the data
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Data is accessible online and may be reused in accordance with licence conditions

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This collection comprises geomorphic risk assessment of 2022 floods for Wilsons catchments. This includes:

(i) geomorphic risk assessment based on excessive erosion,
(ii) geomorphic risk assessment based on change in river behaviour,
(iii) geomorphic risk assessment based on sediment imbalance,
(iv) total erosion volume across the river corridor at 1km segment,
(v) total deposition volume across the river corridor at 1km segment,
(vi) net erosion/deposition volume across the river corridor at 1km segment,
(vii) characterisation of geomorphic adjustments across the river corridor at 1km segment,
(viii) post flood river behaviour characterisation,
(ix) DEM of Difference across the river corridor and
(x) DEM of Difference across the catchment.

The i to viii datasets are in vector format (shapefile) at a spatial resolution of 1km segments using the GDA2020 MGA Zone 56 Australian Albers coordinate projection system. The ix and x are in raster format (GeoTiffs) at a spatial resolution of 1 m × 1 m pixel using the GDA2020 MGA Zone 56 Australian Albers coordinate projection system.

These geomorphic risk datasets have been developed using various publicly available datasets: (i) pre and post flood LiDAR DEM (https://elevation.fsdf.org.au/), (ii) pre and post flood high resolution imagery (https://portal.spatial.nsw.gov.au/portal/apps/sites/#/homepage and CSIRO), (iii) post flood bathymetry (https://elevation.fsdf.org.au/) and (iv) stream network with historical geomorphic change characterisation (Khan and Fryirs, 2020).

The DEM of Difference was implemented in the Python programming language through a Jupyter Notebook interface (https://jupyter.org/). Read-only versions of the Jupyter Notebook code are included in this collection.
Lineage: Please refer to the associated technical report: Geomorphic Risk assessment of the 2022 floods in the Wilsons catchment

Available: 2025-02-13

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153.59624,-28.48 153.59624,-28.99778 153.01541,-28.99778 153.01541,-28.48 153.59624,-28.48

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Subjects
Adverse Weather Events | Atmospheric Sciences | Earth Sciences | Environmental Sciences | Environmental Assessment and Monitoring | Environmental Management | Environmental Management | Geomorphology and Earth Surface Processes | LiDAR | Lismore | Physical Geography and Environmental Geoscience | catastrophic flooding | deposition | erosion | geomorphic change |

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Identifiers
ACN 633 798 857