2010 Index of Stream Condition - Water Body polygon features

The ISC2010_WATER_BODIES polygon features represent the areas of the stream bed that contained water at the time of the survey. Water body features less than 5m2 have been removed so that data volume is manageable.

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.

Data and Resources

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Additional Information

Field Value
Published (Metadata Record) 26/09/2023
Last updated 16/11/2024
Organisation Department of Energy, Environment and Climate Action
License Creative Commons Attribution 4.0 International
Category Spatial Data
Full metadata URL https://metashare.maps.vic.gov.au/geonetwork/srv/api/records/8508ebb0-1299-5b99-a527-cdf3fa0837c0/formatters/sdm-html?root=html&output=html