This dataset is the Victorian Aquifer Framework (VAF) Salinity Distribution. It refers to the salinity distribution for Aquifer Number of 102 (Upper Tertiary/Quaternary Aquifer). The salinity distributions reflect the beneficial use segments prescribed in the State Environment Protection Policy (Waters) (2018) Please refer to the master metadata record VAF 'Victorian Aquifer Framework (VAF) Salinity Distribution for detailed information.

The ISC2010_FRAGMENTATION polygon features represent gap areas in vegetation cover in the 40m Riparian Zone (defined as 40m from ISC2010_STREAMBED_WIDTH) . The gap crietria is defined as any area where vegetation cover is less than 20% for at least 10m x 10m. This data set is derived from source Fractional Cover raster data and has been clipped to a 40m buffer of Stream Bed. Small polygons (<10m2) resulting from the clip process have been excluded from the Fragmentation feature class. River condition in Victoria is assessed every 5 years using the Index of Stream Condition (ISC). The Department of Environment and Primary Industries (DEPI) developed a methodology to assess the Physical Form and Riparian Vegetation components of the ISC using remote sensing data, specifically LIDAR and aerial photography. A State Wide mapping project was undertaken in 2010-13 to accurately map the Physical Form and Riparian Vegetation metrics of the ISC . Other ISC metrics were not assessed in the project and were derived from other sources. The Physical Form and Riparian Vegetation Metric products are a combination of mapped Vector and Raster data as well as Tabular Summary Statistics about the mapped features. In the context of the project, the term Metrics is used to refer to both the mapped features and the summary statistics. Remote sensing data used includes 15cm true colour and infra-red aerial photography and four return multi-pulse LiDAR data. This source data was used to derive a variety of Raster data sets including Digital Terrain Models, Slope, Vegetation Height and Vegetation Cover. The Digital Terrain and Slope rasters were used to map Physical Form metrics including Stream Bed, Top of Bank and River Centre Lines while the Vegetation Height and Cover rasters were used to map the Riparian Vegetation metrics. The Project Report "Aerial Remote Sensing for Physical Channel Form and Riparian Vegetation Mapping" describes the remote sensing and mapping approach used to create this data set.

This layer is used in association with the GMA layer and represents the internal zone boundaries within each GMA (if applicable).

Projection data is described in the gridcode column of the attribute table. This number is 1000 times the actual value (retained in this form to capture significant figures through map processing). For example, "Gridcode -23599" equates to -24% (rainfall) and "Gridcode 1986" equates to 2.0 degrees Celsius (temperature). The results are from 23 climate models that were available for the IPCC Fourth Assessment Report (2007). It is assumed that that the model results give a representation of the real world response to a specific emissions scenario. The IPCC (2007) estimates of global warming are relative to the period 1980-1999. For convenience, the baseline is often called 1990. Projections are given for 2030 and 2070 but, of course, individual years can vary markedly within any climate period, so the values can be taken as representative of the decade around the single year stated, i.e. projections for 2030 are representative of 2026-2035. Natural variability (independent of greenhouse gas forcing) can cause decadal means to vary and estimates of this effect are included in the estimates of uncertainties. The projections comprise a central estimate and a range of uncertainty. The central estimate is the median – or 50th percentile - of the model results, while the uncertainty range is based on two extreme values – the 10th and 90th percentiles. 10% of values fall below the 10th percentile and 10% of values lie above the 90th percentile. Greater emphasis is given to projections from models that best simulate the present climate. The weightings are based on statistical measures of how well each model can simulate the 1975-2004 average patterns of rainfall, temperature, and sea level pressure over Australia. Subregions of Victoria are indicated. Victoria has an integrated catchment management system established under the Catchment and Land Protection Act 1994 (the CaLP Act). Under the CaLP Act, Victoria is divided into ten catchment regions, with a Catchment Management Authority (CMA) established for each region. (See: http://www.water.vic.gov.au/governance/catchment_management_authorities)

This raster is part of Vicmap Lite and depicts the terrain using a combination of hillshading and colour. Vicmap Lite datasets are suited for use between scales of 1: 250,000 and 1 : 5 million. The source DEM was sourced from Vicmap Elevation. The resolution of the raster is 100m which suits the 1: 250,000 - 1 : 5 million scale range. A legend has been produced to help users interpret the image. THIS DATASET WAS LAST UPDATED IN AUGUST 2008

This dataset is the Victorian Aquifer Framework (VAF) Salinity Distribution. It refers to the salinity distribution for Aquifer Number of 100 (Quaternary Aquifer). The salinity distributions reflect the beneficial use segments prescribed in the State Environment Protection Policy (Waters) (2018) Please refer to the master metadata record VAF 'Victorian Aquifer Framework (VAF) Salinity Distribution for detailed information.

This dataset is the Victorian Aquifer Framework (VAF) 3D Surface for Mesozoic and Palaeozoic Bedrock. It has been assigned an Aquifer Code of BSE and Aquifer Number of 114. 1T is the top elevation raster for BSE114. Please refer to the master metadata record VAF 'Victorian Aquifer Framework (VAF) 3D Surfaces' for detailed information.

Projection data is described in the gridcode column of the attribute table. This number is 1000 times the actual value (retained in this form to capture significant figures through map processing). For example, "Gridcode -23599" equates to -24% (rainfall) and "Gridcode 1986" equates to 2.0 degrees Celsius (temperature). The results are from 23 climate models that were available for the IPCC Fourth Assessment Report (2007). It is assumed that that the model results give a representation of the real world response to a specific emissions scenario. The IPCC (2007) estimates of global warming are relative to the period 1980-1999. For convenience, the baseline is often called 1990. Projections are given for 2030 and 2070 but, of course, individual years can vary markedly within any climate period, so the values can be taken as representative of the decade around the single year stated, i.e. projections for 2030 are representative of 2026-2035. Natural variability (independent of greenhouse gas forcing) can cause decadal means to vary and estimates of this effect are included in the estimates of uncertainties. The projections comprise a central estimate and a range of uncertainty. The central estimate is the median – or 50th percentile - of the model results, while the uncertainty range is based on two extreme values – the 10th and 90th percentiles. 10% of values fall below the 10th percentile and 10% of values lie above the 90th percentile. Greater emphasis is given to projections from models that best simulate the present climate. The weightings are based on statistical measures of how well each model can simulate the 1975-2004 average patterns of rainfall, temperature, and sea level pressure over Australia. Subregions of Victoria are indicated. Victoria has an integrated catchment management system established under the Catchment and Land Protection Act 1994 (the CaLP Act). Under the CaLP Act, Victoria is divided into ten catchment regions, with a Catchment Management Authority (CMA) established for each region. (See: http://www.water.vic.gov.au/governance/catchment_management_authorities)

This dataset is a raster layer of the Sherbrooke Group, Otway Basin in metres below sea level. Due to a number of deficiencies in mapping previously completed by 3D Geo for Southern Rural Water in 2011, a number of processes were applied to correct the Top and Base of the Sherbrooke Group. The dataset was compiled by GHD to inform the report 'Potential Influences of Geological Structures on Groundwater Flow Systems' for DEPI's Secure Allocation Future Entitlements (SAFE) Project.

This raster is part of Vicmap Lite and depicts the terrain using hillshading. This Vicmap Lite dataset is suited for use between scales of 1: 2 million and 1 : 5 million. The source DEM was sourced from Vicmap Elevation. The resolution of the raster is 800m which suits the 1: 2 million - 1 : 5 million scale range. MGA 54 THIS DATASET WAS LAST UPDATED IN AUGUST 2008