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
 

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Identifiers and Keywords

ANZLIC Id
ANZVI0803005125 
Victorian Spatial Data Library (VSDL) Schema
WATER:ISC2010_STREAMBED_WIDTH_R 
Jurisdiction
Victoria 
Topic category
  • Elevation
  • Inland waters
  • Imagery base maps earth cover
  • Transportation
 

Resource Constraints

Classification
Unclassified  
Creative Commons Attribution 4.0 (CC-BY)
 

Other Dataset Details

Date ( Revision )
2014-02-04
Date ( Publication )
2022-04-06T18:45:14
Status
Completed  
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. 
Supplemental Information
Related Documents: None The Product Description "ISC2010 Remote Sensing Metrics" describes the remote sensing and mapping approach used to create this and all other ISC2010 data sets. http://ics.water.vic.gov.au/ics/ http://ics.water.vic.gov.au/ics/ 
Maintenance and update frequency
Not planned  
Maintenance date ( Publication )
2022-04-06T18:45:14
 

Spatial

Spatial representation type
Vector  
Description
General - Victoria 
Reference system identifier
4283

N
S
E
W


 

Temporal

Begin date
2010-06-01 
End date
2012-12-01 
 

Resolution

Horizontal Accuracy
50m  
 

Quality

Conceptual Consistency
Streambed Width has been mapped the same way across the entire ISC2010 network. 
Missing Data
Streambed Width has been mapped for the entire ISC2010 network. Polygons do not overlap at reach ends. 
Attribute Quality
The UniqueID that describes the Basin and Reach Number is complete for every Reach. 
Positional Accuracy
+/- 1-2m 
 

Lineage

Statement
Dataset Source: Streambed Width is dervied from ISC2010_TOE_OF_BANK line data set. The toe of bank lines have been closed at the reach ends to form the Streambed Width polygons. Toe of Bank lines were mapped directly from LiDAR derived Slope and DTM data sets and aerial photography. Dataset Originality: Derived 
 

Attributes

Column Name Obligation Unique Data Type Data Length Data Precision Data Scale Reference Table Owner Reference Table Name Reference Table Code Column Name Short Column Name Definition
GRAPH_FILE O N VARCHAR2 50 GRAPH_FILE
TOTAL_SBW_AREA O N NUMBER 22 38 8 SBWAREA
MEAN_WIDTH_OF_SBW O N NUMBER 22 38 8 AVSBWS
UNIQUEID O N VARCHAR2 50 UNIQUEID
STD_DEV_OF_WIDTH O N NUMBER 22 38 8 STDWIDTH
GRAPH_FOLDER O N VARCHAR2 50 GPHFOLDER
CATCHMENT O N VARCHAR2 50 CATCHMENT
REACH_LENGTH O N NUMBER 22 38 8 REACHLENG
ANABRANCHID O N NUMBER 22 10 0 ANABRNCHID
REACHID O N NUMBER 22 10 0 REACHID
BASINID O N NUMBER 22 10 0 BASINID
 

About the Metadata Record

Metadata identifier
e73a1152-76cf-5e66-926f-213fc0d0fcba

Contact  

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Resource Type
Dataset  
Date info ( Revision )
2014-02-04
Standard Name
ISO 19115-3:2018 
Profile Name
DELWP Profile 
Profile Version
Version 1 
Profile Date
2019-05-24  
 

Metadata Constraints

Classification
Unclassified  
 
 

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