2010 Index of Stream Condition - Stream Bed Width Reach polygon features

dataset: ISC2010_STREAMBED_WIDTH_R
The ISC2010_STREAMBED_WIDTH polygon features represent the width between the Toe of each opposing bank for each River Reach. 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.
 
Citation proposal Citation proposal
(2014)

2010 Index of Stream Condition - Stream Bed Width Reach polygon features

Department of Environment, Land, Water & Planning
 

Description

Title
2010 Index of Stream Condition - Stream Bed Width Reach polygon features 
Alternate title
ISC2010_STREAMBED_WIDTH_R 
Purpose
Used in conjunction with ISC2010_BANKFULL_WIDTH, ISC2010_STREAMBED_WIDTH is used to denote the bank face which is then used in various metric assessments. This feature is also used as the reference point from which the 40m riparian zone is measured. 
Status
Completed  
 
 

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Keywords

Topic category
  • Elevation
  • Inland waters
  • Imagery base maps earth cover
  • Transportation
 
 

Constraints

Classification
Unclassified  
 
 

Extents

Description
General - Victoria 
 
 

Acquisition Info

RFQ Number
 
 

Metadata Constraints

Classification
Unclassified  
 
 

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