2010 Index of Stream Condition - Vegetation Width line features
Anzlic ID:
ANZVI0803005122
Custodian:
Abstract:
The ISC2010_VEGETATIO_WIDTH line features define the length of vegetation from the stream bed (ISC2010_STREAMBED_WIDTH) to where the vegetation cover is less than 20% or the riparian vegetation edge is met. Vegetation width is measured perpendicular to the stream direction using the ISC2010_CHANNEL_TRANSECTS as seed vector up to a distance of 200m from the stream bed. There is a Vegetation Width measurement every 25m.
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.
Vegetation Width has been mapped for the entire ISC2010 network.
Progress:
Completed
Access Constraint:
Creative Commons Attribution 4.0 (CC-BY)
(
License Text
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Data Existence:
Metadata Name
Descriptions
Resource Name:
ISC2010_VEGETATION_WIDTH
Title:
2010 Index of Stream Condition - Vegetation Width line features
Anzlic ID:
ANZVI0803005122
Custodian:
Owner:
Jurisdiction:
Victoria
Abstract:
The ISC2010_VEGETATIO_WIDTH line features define the length of vegetation from the stream bed (ISC2010_STREAMBED_WIDTH) to where the vegetation cover is less than 20% or the riparian vegetation edge is met. Vegetation width is measured perpendicular to the stream direction using the ISC2010_CHANNEL_TRANSECTS as seed vector up to a distance of 200m from the stream bed. There is a Vegetation Width measurement every 25m.
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.
The ISC2010_VEGETATION_WIDTH features are used in the assessment of the Vegetation Width sub-index where the average vegetation width contributes to the Vegetation Width Score.
Geographic Extent Polygon:
Geographic Bounding Box:
-34
141
150
-39
Beginning to Ending Date:
2010-06-01 - 2012-12-01
Maintainence and Update Frequency:
Not planned
Stored Data Format:
Available Format(s) Types:
DIGITAL
Positional Accuracy:
+/- 1m
Attribute Accuracy:
The UniqueID that describes the Basin and Reach that each Vegetation Width line feature falls in is recorded.
Logical Consistency:
Vegetation Width has been mapped the same way across the entire ISC2010 network.
Data Source:
Dataset Source: Vegetation Width is derived from from the Overall Fractional Cover Count Raster data set, a derivative of the LiDAR source data.
Dataset Originality: Derived
Contact Organisation:
Contact Position:
Address:
Telephone:
Facsimile:
Email Address:
Metadata Date:
2014-02-04
Additional Metadata:
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/
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