The Victorian Coastal Cliff Assessment - Instability Areas (ASCCIE) is a digital dataset consisting of multiple spatial layer outputs from modelled erosion scenarios. The dataset is recommended for use at the statewide / regional scale along the Victorian coastline. Application of the data should be guided by the accompanying Victorian Coastal Cliff Assessment technical reports and expert advice. The product is not suitable for individual property scale assessments. ASTaR have been derived based on the geological unit type and cliff height. The methodology for defining ASTaR is a new method undertaken at a high level and based on the existing cliff height and a defined slope to identify the possible seaward extent of talus runout. For this state-wide/regional scale assessment, single values were derived for each component. This ‘building-block’ approach (ie: a combination of individual parameters) is expected to produce ‘upper bound’, conservative results, which identifies areas potentially exposed to coastal erosion, cliff instability and cliff slumping/talus The product is an update to the Victorian Coastal Cliff Assessment, Stage 1. Included datasets for Stage 2a supersede the Stage 1 outputs. The Stage 2a project report should be read in conjunction with the Stage 1 report. Application of the data should be guided by the accompanying "Victorian Coastal Cliff Assessment, Stage 2a technical report" (Tonkin & Taylor 2025) read in conjunction with the Stage 1 technical report, combined with appropriate expert advice.

The Compartments Sensitivity to Change data set represents a sub-regional scale (1:100 000 - 1:25 000), derived from the compartmentalisation of the Australian coastal zone into spatial units within (and between) which sediment movement processes are considered to be significant at scales relevant to coastal management. The Primary and accompanying Secondary Coastal Sediment Compartment data sets were created by a panel of coastal science experts who developed a series of broader scale data sets (Coastal Realms, Regions and Divisions) in order to hierarchically subdivide the coastal zone on the basis of key environmental attributes. Once the regional (1:250 000) scale was reached expert knowledge of coastal geomorphology and processes was used to further refine the sub-division and create both the Primary and Secondary Sediment Compartment data sets. Environmental factors determining the occurrence and extents of these compartments include major geological structures, major geomorphic process boundaries, orientation of the coastline and recurring patterns of landform and geology – these attributes are given in priority order below.1 - Gross lithological/geological changes (e.g. transition from sedimentary to igneous rocks).2 - Geomorphic (topographic) features characterising a compartment boundary (often bedrock-controlled) (e.g. peninsulas, headlands, cliffs).3 - Dominant landform types (e.g. large cuspate foreland, tombolos and extensive sandy beaches versus headland-bound pocket beaches).4 - Changes in the orientation (aspect) of the shoreline.

VCMP Sites - Shoreline Profile Timeseries The Shoreline Profile Timeseries dataset features short-term and long-term shorelines ranging from 1930 to 2023 across sites monitored by the Victorian Coastal Monitoring Program (VCMP) along Victoria's coastline, spatially represented as point data. Cross-sections are extracted for datasets with elevation models, including: - Digital Surface Models (DSM) from UAV surveys, includes vegetation. - Victorian Coastal Digital Elevation Model (VCDEM, updated 2022), most coastal survey data are from c. 2008 – 2010, excludes vegetation. - Use caution when comparing onshore (backshore) sections of the profile, as VCMP UAV surveys DSMs include vegetation and cannot be directly compared with the VCDEM (no vegetation). Output products include 1m Digital Surface Models (DSM) and Orthophotos (vegetation is included in UAV data). - Vertical uncertainty for the output digital surface model (DSM) is estimated at 0.1 m. - The shoreline proxy is defined as the point at which each transect first intersect a given contour (m, AHD): 1.0 m AHD for open coasts and 0.5 m AHD for bay sites - Intersection points are joined alongshore to create a shoreline, noting the alongshore spacing (30-m) may be too low to define complex, small-scale features. - Assuming a beach face slope of 1-in-10, a 0.1 m vertical uncertainty in the survey DSM equates to cross-shore uncertainty of 1 m in shoreline position. Digital Earth Australia (DEA) coastlines A mean annual mid-tide shoreline is extracted from satellite imagery using sub-pixel identification methods, for the period 1988 to 2021, at 30-m alongshore spacing (Bishop-Taylor et al., 2021). - DEA shorelines have an estimated uncertainty of 1-3 m, with a precision limit on shoreline trends of 0.31 m/yr, i.e., trends below this threshold are insignificant. - DEA have known issues around cliffed areas, leading to higher (unconstrained) uncertainty in some cliffed areas. DEA outputs in such areas should be treated with caution. Aerial Imagery Shorelines Aerial images are hosted and geo-rectified by DEECA's Coordinated Imagery Program. Based on control point checks by VCMP, newer images (approx. post-2000) are estimated to have horizontal uncertainty of 3-m or less. Older images (pre-2000) can have greater uncertainty, estimated at up to 10-m. Older images (<1960) may have larger errors (unconstrained) and should be treated with caution. - Backshore line: Extracted for open coast and bay sites. Identified manually as the onshore extent of the active sandy beach. Depending on morphology, the backshore line may be defined vegetation, dune toe, cliff toe and / or a coastal protection structure (sea wall or revetment). - Shoreline proxy line: Extracted for bay sites only (with low wave energy). Identified manually as the instantaneous wet/dry line, with no tidal correction. - Sites with larger tidal ranges (e.g., Cowes) would be expected to have larger uncertainty in shoreline position and caution is advised. All shoreline data (short-term VCMP drone and long-term DEA satellite) are interpolated to the same set of 30-m spaced transects, based on the Digital Earth Australia 2019 product. More information about the Shoreline Timeseries dataset and other datasets generated from the Victorian Coastal Monitoring Program can be found at https://www.marineandcoasts.vic.gov.au/__data/assets/pdf_file/0041/688397/VCMP_Sites_MetadataReport_Oct2023.pdf

The Port Phillip Bay Coastal Hazard Assessment (the product) is a digital dataset consisting of multiple spatial layer outputs from modelled erosion, inundation and groundwater hazard scenarios. The product is recommended for use at the regional scale around Port Phillip Bay. Application of the data should be guided by the accompanying Port Phillip Bay hazard assessment technical reports (CSIRO 2022, Water Technology 2023, Kennedy 2022) and expert advice. The product is not suitable for individual property scale assessments. The datasets available are as follows. Further detail on technical assumptions for these scenarios are provided in the accompanying technical reports. Additional data sets referenced in the reports are also available on request. Storm tide inundation Storm tide inundation extents for the 1% Annual Exceedance Probability (AEP) for a range of Sea Level Rise (SLR) scenarios (0m, 0.2m, 0.5m, 0.8m, 1.1m): - PPBCHA_INUNDATION_EXTENT_1AEP_00SLR - PPBCHA_INUNDATION_EXTENT_1AEP_02SLR - PPBCHA_INUNDATION_EXTENT_1AEP_05SLR - PPBCHA_INUNDATION_EXTENT_1AEP_08SLR - PPBCHA_INUNDATION_EXTENT_1AEP_11SLR - PPBCHA_INUNDATION_EXTENT_1AEP_14SLR - PPBCHA_INUNDATION_EXTENT_1AEP_00SLR_WITHRAINFALL - PPBCHA_INUNDATION_EXTENT_1AEP_00SLR_WITHRAINFALL - PPBCHA_INUNDATION_EXTENT_1AEP_05SLR_WITHRAINFALL - PPBCHA_INUNDATION_EXTENT_1AEP_08SLR_WITHRAINFALL - PPBCHA_INUNDATION_EXTENT_1AEP_11SLR_WITHRAINFALL - PPBCHA_INUNDATION_EXTENT_1AEP_14SLR_WITHRAINFALL Storm tide inundation extents for each SLR scenario are presented as a combined vector layer that incorporates the modelled 95th, 50th, and 5th percentiles. Erosion Erosion extents for the 1% AEP for a range of Sea Level Rise (SLR) scenarios (0m, 0.2m, 0.5m, 0.8m, 1.1m). - PPBCHA_EROSION_EXTENT_1AEP_2010_00SLR - PPBCHA_EROSION_EXTENT_1AEP_2040_02SLR - PPBCHA_EROSION_EXTENT_1AEP_2070_05SLR - PPBCHA_EROSION_EXTENT_1AEP_2100_08SLR - PPBCHA_EROSION_EXTENT_1AEP_2100_11SLR - PPBCHA_EROSION_EXTENT_1AEP_2100_14SLR Erosion hazard extents are the modelled 95th percentile. Sea level of 0m as of 2010. Groundwater Groundwater extents indicating where the hazard is shallow (within 0 to 2m below land surface) for a range of Sea Level Rise (SLR) scenarios (0m, 0.2m, 0.5m, 0.8m): - PPBCHA_GROUNDWATER_EXTENT_SHALLOW_00SLR - PPBCHA_GROUNDWATER_EXTENT_SHALLOW_02SLR - PPBCHA_GROUNDWATER_EXTENT_SHALLOW_05SLR - PPBCHA_GROUNDWATER_EXTENT_SHALLOW_08SLR - PPBCHA_GROUNDWATER_EXTENT_SHALLOW_11SLR - PPBCHA_GROUNDWATER_EXTENT_SHALLOW_14SLR Shallow groundwater extent layer is derived from the groundwater depth raster. Report Citations: CSIRO - McInnes, K.L., O’Grady, J.O., Prakash, M., Dahlhaus, P., Rosengren, N.J., Hoeke, R.K., Lauchlan Arrowsmith, C., Hernaman, V., Cohen, R., Seers, B., Chen, Y., Walters, D., Couto, P., Trenham, C., Forbes-Smith, N. Gregory, R., Hemer, M. and Power, R. (2022) Port Phillip Bay Coastal Hazard Assessment: Final Report. Report to Department of Environment, Land, Water and Planning. 236 pages + 11 Appendices. Water Technology (2023) Erosion Hazard Summary Report, Port Phillip Bay Coastal Erosion Hazards, Report to Department of Energy, Environment and Climate Action Kennedy, D. M. (2022), Tertiary Coastal Compartments in Port Phillip Bay: Review, Definition and Methodology, Report to Department of Energy, Environment and Climate Action. School of Geography, Earth and Atmospheric Sciences, The University of Melbourne.

Regen survey polygon information from the field specifically for Regen surveys

The Port Phillip Bay Coastal Hazard Assessment (the product) is a digital dataset consisting of multiple spatial layer outputs from modelled erosion, inundation and groundwater hazard scenarios. The product is recommended for use at the regional scale around Port Phillip Bay. Application of the data should be guided by the accompanying Port Phillip Bay hazard assessment technical reports (CSIRO 2022, Water Technology 2023, Kennedy 2022) and expert advice. The product is not suitable for individual property scale assessments. The datasets available are as follows. Further detail on technical assumptions for these scenarios are provided in the accompanying technical reports. Additional data sets referenced in the reports are also available on request. Storm tide inundation Storm tide inundation extents for the 1% Annual Exceedance Probability (AEP) for a range of Sea Level Rise (SLR) scenarios (0m, 0.5m, 0.8m, 1.1m): - PPBCHA_INUNDATION_EXTENT_1AEP_00SLR - PPBCHA_INUNDATION_EXTENT_1AEP_05SLR - PPBCHA_INUNDATION_EXTENT_1AEP_08SLR - PPBCHA_INUNDATION_EXTENT_1AEP_11SLR - PPBCHA_INUNDATION_EXTENT_1AEP_14SLR - PPBCHA_INUNDATION_EXTENT_1AEP_00SLR_WITHRAINFALL - PPBCHA_INUNDATION_EXTENT_1AEP_05SLR_WITHRAINFALL - PPBCHA_INUNDATION_EXTENT_1AEP_08SLR_WITHRAINFALL - PPBCHA_INUNDATION_EXTENT_1AEP_11SLR_WITHRAINFALL - PPBCHA_INUNDATION_EXTENT_1AEP_14SLR_WITHRAINFALL Storm tide inundation extents for each SLR scenario are presented as a combined vector layer that incorporates the modelled 95th, 50th, and 5th percentiles. Erosion Erosion extents for the 1%AEP for a range of Sea Level Rise (SLR) scenarios (0m, 0.2m, 0.5m, 0.8m, 1.1m). - PPBCHA_EROSION_EXTENT_1AEP_2010_00SLR - PPBCHA_EROSION_EXTENT_1AEP_2040_02SLR - PPBCHA_EROSION_EXTENT_1AEP_2070_05SLR - PPBCHA_EROSION_EXTENT_1AEP_2100_08SLR - PPBCHA_EROSION_EXTENT_1AEP_2100_11SLR - PPBCHA_EROSION_EXTENT_1AEP_2100_14SLR Erosion hazard extents are the modelled 95th percentile. Sea level of 0m as of 2010. Groundwater Groundwater extents indicating where the hazard is shallow (within 0 to 2m below land surface) for a range of Sea Level Rise (SLR) scenarios (0m, 0.2m, 0.5m, 0.8m): - PPBCHA_GROUNDWATER_EXTENT_SHALLOW_00SLR - PPBCHA_GROUNDWATER_EXTENT_SHALLOW_02SLR - PPBCHA_GROUNDWATER_EXTENT_SHALLOW_05SLR - PPBCHA_GROUNDWATER_EXTENT_SHALLOW_08SLR - PPBCHA_GROUNDWATER_EXTENT_SHALLOW_11SLR - PPBCHA_GROUNDWATER_EXTENT_SHALLOW_14SLR Shallow groundwater extent layer is derived from the groundwater depth raster. Report Citations: CSIRO - McInnes, K.L., O’Grady, J.O., Prakash, M., Dahlhaus, P., Rosengren, N.J., Hoeke, R.K., Lauchlan Arrowsmith, C., Hernaman, V., Cohen, R., Seers, B., Chen, Y., Walters, D., Couto, P., Trenham, C., Forbes-Smith, N. Gregory, R., Hemer, M. and Power, R. (2022) Port Phillip Bay Coastal Hazard Assessment: Final Report. Report to Department of Environment, Land, Water and Planning. 236 pages + 11 Appendices. Water Technology (2023) Erosion Hazard Summary Report, Port Phillip Bay Coastal Erosion Hazards, Report to Department of Energy, Environment and Climate Action Kennedy, D. M. (2022), Tertiary Coastal Compartments in Port Phillip Bay: Review, Definition and Methodology, Report to Department of Energy, Environment and Climate Action. School of Geography, Earth and Atmospheric Sciences, The University of Melbourne.

Forest Areas which were within VicForests (VF) Allocated Resource that VF intended to conserve and protect from harvesting for one rotation or until such time it was assessed that the value no longer existed. This supplements the Forest Management Zone (FMZ) layer from Department of Environment Land Water and Planning (DELWP). The Reserve layer includes Modelled Old Growth in Parks to support reporting requirements.

The Port Phillip Bay Coastal Hazard Assessment (the product) is a digital dataset consisting of multiple spatial layer outputs from modelled erosion, inundation and groundwater hazard scenarios. The product is recommended for use at the regional scale around Port Phillip Bay. Application of the data should be guided by the accompanying Port Phillip Bay hazard assessment technical reports (CSIRO 2022, Water Technology 2023, Kennedy 2022) and expert advice. The product is not suitable for individual property scale assessments. The datasets available are as follows. Further detail on technical assumptions for these scenarios are provided in the accompanying technical reports. Additional data sets referenced in the reports are also available on request. Storm tide inundation Storm tide inundation extents for the 1% Annual Exceedance Probability (AEP) for a range of Sea Level Rise (SLR) scenarios (0m, 0.5m, 0.8m, 1.1m): - PPBCHA_INUNDATION_EXTENT_1AEP_00SLR - PPBCHA_INUNDATION_EXTENT_1AEP_05SLR - PPBCHA_INUNDATION_EXTENT_1AEP_08SLR - PPBCHA_INUNDATION_EXTENT_1AEP_11SLR - PPBCHA_INUNDATION_EXTENT_1AEP_14SLR - PPBCHA_INUNDATION_EXTENT_1AEP_00SLR_WITHRAINFALL - PPBCHA_INUNDATION_EXTENT_1AEP_05SLR_WITHRAINFALL - PPBCHA_INUNDATION_EXTENT_1AEP_08SLR_WITHRAINFALL - PPBCHA_INUNDATION_EXTENT_1AEP_11SLR_WITHRAINFALL - PPBCHA_INUNDATION_EXTENT_1AEP_14SLR_WITHRAINFALL Storm tide inundation extents for each SLR scenario are presented as a combined vector layer that incorporates the modelled 95th, 50th, and 5th percentiles. Erosion Erosion extents for the 1%AEP for a range of Sea Level Rise (SLR) scenarios (0m, 0.2m, 0.5m, 0.8m, 1.1m). - PPBCHA_EROSION_EXTENT_1AEP_2010_00SLR - PPBCHA_EROSION_EXTENT_1AEP_2040_02SLR - PPBCHA_EROSION_EXTENT_1AEP_2070_05SLR - PPBCHA_EROSION_EXTENT_1AEP_2100_08SLR - PPBCHA_EROSION_EXTENT_1AEP_2100_11SLR - PPBCHA_EROSION_EXTENT_1AEP_2100_14SLR Erosion hazard extents are the modelled 95th percentile. Sea level of 0m as of 2010. Groundwater Groundwater extents indicating where the hazard is shallow (within 0 to 2m below land surface) for a range of Sea Level Rise (SLR) scenarios (0m, 0.2m, 0.5m, 0.8m): - PPBCHA_GROUNDWATER_EXTENT_SHALLOW_00SLR - PPBCHA_GROUNDWATER_EXTENT_SHALLOW_02SLR - PPBCHA_GROUNDWATER_EXTENT_SHALLOW_05SLR - PPBCHA_GROUNDWATER_EXTENT_SHALLOW_08SLR - PPBCHA_GROUNDWATER_EXTENT_SHALLOW_11SLR - PPBCHA_GROUNDWATER_EXTENT_SHALLOW_14SLR Shallow groundwater extent layer is derived from the groundwater depth raster. Report Citations: CSIRO - McInnes, K.L., O’Grady, J.O., Prakash, M., Dahlhaus, P., Rosengren, N.J., Hoeke, R.K., Lauchlan Arrowsmith, C., Hernaman, V., Cohen, R., Seers, B., Chen, Y., Walters, D., Couto, P., Trenham, C., Forbes-Smith, N. Gregory, R., Hemer, M. and Power, R. (2022) Port Phillip Bay Coastal Hazard Assessment: Final Report. Report to Department of Environment, Land, Water and Planning. 236 pages + 11 Appendices. Water Technology (2023) Erosion Hazard Summary Report, Port Phillip Bay Coastal Erosion Hazards, Report to Department of Energy, Environment and Climate Action Kennedy, D. M. (2022), Tertiary Coastal Compartments in Port Phillip Bay: Review, Definition and Methodology, Report to Department of Energy, Environment and Climate Action. School of Geography, Earth and Atmospheric Sciences, The University of Melbourne.

This polygon features layer provides a spatial account of all areas harvested by VicForests or its contractors or under VicForests direction since 2004. Symbolized with one symbol.