2010 Index of Stream Condition - Vegetation Width line features
dataset:
ISC2010_VEGETATION_WIDTH
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.
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Citation proposal Citation proposal
(2014) 2010 Index of Stream Condition - Vegetation Width line features Department of Environment, Land, Water & Planning https://metashare.maps.vic.gov.au/geonetwork/srv/eng/catalog.search#/metadata/8f7f2015-6101-55f2-886d-01fb7ad27a4e |
- Description
- Temporal
- Spatial
- Maintenance
- Format
- Contacts
- Keywords
- Resource Constraints
- Lineage
- Metadata Constraints
- Quality
Description
- Title
- 2010 Index of Stream Condition - Vegetation Width line features
- Alternate title
- ISC2010_VEGETATION_WIDTH
- Resource Type
- Dataset
- Purpose
- 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.
- 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/
- Status
- Completed
Temporal
- Time period
- 2010-06-012012-12-01
Spatial
- Spatial representation type
- Vector
- Horizontal Accuracy
- 50m
- Code
- 4283
- Description
- General - Victoria
N
S
E
W
Maintenance
- Maintenance and update frequency
- Not planned
Format
Contacts
Point of contact
Department of Environment, Land, Water & Planning
-
Wilson Paul Mr
(Team Leader Water Assessment & Research)
level 12/8 Nicholson street
East Melbourne
Vic
3002
Australia
Cited responsible party
No information provided.
Cited responsible party
No information provided.
Cited responsible party
No information provided.
Cited responsible party
No information provided.
Keywords
- Topic category
-
- Elevation
- Inland waters
- Imagery base maps earth cover
- Transportation
Resource Constraints
- Classification
- Unclassified
Lineage
- Statement
- 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
Metadata Constraints
- Classification
- Unclassified
Quality
Attribute Quality
- Comments
- The UniqueID that describes the Basin and Reach that each Vegetation Width line feature falls in is recorded.
Positional Accuracy
- Comments
- +/- 1m
Conceptual Consistency
- Comments
- Vegetation Width has been mapped the same way across the entire ISC2010 network.
Missing Data
- Comments
- Vegetation Width has been mapped for the entire ISC2010 network.
Excess Data
Overviews
Provided by
Views Views
8f7f2015-6101-55f2-886d-01fb7ad27a4e
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Associated resources
Not available