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2010 Index of Stream Condition - Structure 1 Reach Summary Table

Created 13/01/2025

Updated 01/04/2025

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The ISC2010_STRUCTURE1_R table is the Statistical Summary table for the Structure1 Metric at the Reach level. Structure 1 represents Vegetation Cover for two grouped height categories: Shrubs which are defined as vegetation in the height range 1.5m to 5m and Trees which are defined as vegetation with height greater than 5m. Structure 1 is assessed within the 40m riparian zone. The ISC2010_STRUCTURE1_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.

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Additional Info

Field Value
Title 2010 Index of Stream Condition - Structure 1 Reach Summary Table
Language English
Licence Creative Commons Attribution 3.0 Australia
Landing Page https://devweb.dga.links.com.au/data/dataset/e4266671-b340-41f4-93dc-d5f3b0b64125
Contact Point
Environment Protection Authority (EPA) Victoria
Geospatial Coverage http://www.ga.gov.au/place-names/PlaceDetails.jsp?submit1=GA7
Data Portal data.gov.au

Data Source

This dataset was originally found on data.gov.au "2010 Index of Stream Condition - Structure 1 Reach Summary Table". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/2010-index-of-stream-condition-structure-1-reach-summary-table

Original dataset
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