This is the master metadata record for the Victorian Aquifer Framework (VAF) 3D Surfaces dataset. For information on each aquifer surface, please refer to the separate metadata record. DEPI originally engaged GHD to develop seamless 3D aquifer surfaces for the Victorian Aquifer Framework (VAF). The seamless mapping of aquifers across the state provides the fundamental framework for groundwater resource management, underpins development of a revised management structure for Victoria (the Secure Allocation Future Entitlement project funded by the National Water Commission) and contributes to the data needs of the Bureau of Meteorology National Groundwater Information System (NGIS). The original dataset was produced by GHD in 2012 using (in part) data provided by Southern Rural Water Corporation and Goulburn-Murray Water Corporation. It has been subsequently amended by Hocking et al and SKM in 2013.

GEDIS REFID: 10983; SOURCE MAP: G10983_parishplan_Mirboo_31k_600dpi_colour_master.tif; SUBJECT: FERGUSON, W.H., 1920. Parish of Mirboo 1:31,680 (40 chains:1 inch) geological map. Plan No 108p. Geological Survey of Victoria.

This dataset is a raster layer of the Top of the Wangerrip Group, Otway Basin in metres below sea level. The Wangerrip Group is part of the Lower Tertiary Aquifer (LTA) as outlined in the Victorian Aquifer Framework (VAF). Due to 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 Wangerrip 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.

Baseflow separation analysis was undertaken for 180 stream gauges on unregulated rivers in Victoria. This included the 178 gauges assessed in previous DEPI and MDBA assessments. The baseflow separation analysis was undertaken on historical river flow records up to 2012 and utilised a filter parameter of 0.98.

The ISC2010_FRAGMENTATION_R table is the Statistical Summary table for the Fragmentation Metric at the Reach level. The ISC2010_FRAGMENTATION_R table is designed to JOIN to the ISC2010_RIVER_CENTRELINES_R 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 dataset relates to the Victorian Aquifer Framework (VAF) 3D Surface for the Upper Tertiary Quaternary Aquitard. It represents the mapped extent of the aquitard. Please refer to the master metadata record VAF 'Victorian Aquifer Framework (VAF) 3D Surfaces' for detailed information.

State wide data showing Upper House boundaries and names 1991. These are the Legislative Council Electoral Boundaries referred to as the Upper House Boundaries. SUPERSESED dataset by VMADMIN_STATE_COUNCIL_2001

This dataset relates to the Victorian Aquifer Framework (VAF) 3D Surface for the Lower Mid Tertiary Aquifer. It represents the mapped extent of the aquifer. Please refer to the master metadata record VAF 'Victorian Aquifer Framework (VAF) 3D Surfaces' for detailed information.

Part of VMREFTAB, the set of Reference Tables for the VICMAP suite of products.

This dataset is derived from the Melway directory and contains the pagegrid for the 1:20 000 greater Melbourne maps.