Intertidal Extents Model Coastal Cells shapefile
<p>The Intertidal Extents Model (ITEM v1.0) product is a national scale gridded dataset characterising the spatial extents of the exposed intertidal zone, at intervals of the observed tidal range. The current version utilises all Landsat observations (5, 7, and 8) for Australian coastal regions (excluding off-shore Territories) between 1987 and 2015 (inclusive).
<p>The Intertidal Extents Model (ITEM v1.0) consists of three datasets derived from the Landsat NBAR data managed in the Australian Geoscience Data Cube (AGDC) for the period 1987 to 2015.
<p>The Coastal Cells shapefile (ITEM_CoastalCells.shp) identifies the location and extents of the 221 one degree by one degree AGDC cells used in the product, covering the mainland and Tasmanian coastline of the continent (Figure 1). The shapefile also includes information on the lowest (LOT) and highest (HOT) observed tides for the cell, and hence the observed tidal range (HOT-LOT), based on tidal modelling for the time of acquisition of each of the corresponding Landsat tile observations in the cell.
<p>Attributes:
<p>AGDC Cell Identifier
<p>Lowest Observed Tide (LOT) - The lowest modelled tidal offset based on the acquisition times of all observations in the cell. Relative to Mean Sea Level (MSL) (m) x 1000.
<p>Highest Observed Tide (HOT) - The highest modelled tidal offset based on the acquisition times of all observations in the cell. Relative to Mean Sea Level (MSL) (m) x 1000.
Simple
Identification info
- Date (Creation)
- 2016-06-02T14:00:00
- Date (Publication)
- 2016-06-14T16:00:00
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/100481
- Citation identifier
- Digital Object Identifier/http://dx.doi.org/10.4225/25/575F64E5BA264
- Cited responsible party
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Role Organisation / Individual Name Details Publisher Commonwealth of Australia (Geoscience Australia)
Voice
- Purpose
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The purpose of the ITEM v1.0 product is to assist in understanding the extent and elevation profile of the Australian intertidal zone. Examples of where this knowledge can contribute include environmental monitoring applications for migratory bird species, habitat mapping in coastal regions, hydrodynamic modelling, and geomorphology studies of features in the intertidal zone.
Through attribution of the LOT and HOT values modelled for each cell, the extents model can be used to derive an elevation profile of the observed intertidal zone extent on a cell by cell basis. The method employed can be tailored based on user requirements. For example, by dividing the observed tidal range for a cell (HOT-LOT) into 10% interval values, contours can be assigned to the section of the Intertidal Extents Model contained in that cell. These can then be used as a standalone elevation data source, or interpolated to create a continuous intertidal digital elevation model for the cell.
The ability to create an elevation model relative to MSL enables the data to be integrated as a complimentary data source, linking shallow water bathymetry and terrestrial elevation models.
- Status
- Point of contact
-
Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Voice Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Voice Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Voice Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Voice Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Voice Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Voice Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Voice Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Voice Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Voice Point of contact Commonwealth of Australia (Geoscience Australia)
Voice Voice
- Spatial representation type
- Vector
Spatial resolution
- Level of detail
-
25m
- Topic category
-
- Geoscientific information
Extent
Temporal extent
- Time period
- 2008-01-01T00:00:00 2015-11-30T23:55:00
Extent
))
- Maintenance and update frequency
- As needed
Resource format
- Title
-
Product data repository: Various Formats
- Website
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Data Store directory containing the digital product files
Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
- theme.ANZRC Fields of Research.rdf
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-
EARTH SCIENCES
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- GCMD Keywords
-
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Earth Science | Oceans | Tides
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Earth Science | Oceans
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Earth Science | Terrestrial Hydrosphere
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- Data centre
-
-
NCI
-
- Product
-
-
Intertidal Extents Model
-
- Keywords
-
-
Published_External
-
Resource constraints
- Title
-
Creative Commons Attribution 4.0 International Licence
- Alternate title
-
CC-BY
- Edition
-
4.0
- Access constraints
- License
- Use constraints
- License
Resource constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
-
Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
- OnLine resource
-
Download the data (shp)
Download the data (shp)
- OnLine resource
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Intertidal Extents Model Collection
Intertidal Extents Model Collection
- OnLine resource
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Intertidal Extents Model Confidence Layer
Intertidal Extents Model Confidence Layer
- OnLine resource
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Intertidal Extents Model Relative Extents Model
Intertidal Extents Model Relative Extents Model
- OnLine resource
-
Product Description (pdf)
Product Description (pdf)
Resource lineage
- Statement
-
The Coastal Cells shapefile (ITEM_CoastalCells.shp) identifies the location and extents of the 221 one degree by one degree AGDC cells used in the product, covering the mainland and Tasmanian coastline of the continent.
- Hierarchy level
- Dataset
- Description
-
Australian Data Cube ARG25 Surface Reflactance and Pixel Quality Assessment, in conjunction with the OTPS TPX08 Atlas Tidal Model and Normalised Difference Water index (NDWI).
Equivalent scale
- Denominator
- 50
- Hierarchy level
- Dataset
Extent
))
Metadata constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/0457dc12-13c2-40be-9d30-1951ce48e105
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation / Individual Name Details Point of contact Kool, J.
Commonwealth of Australia (Geoscience Australia)
Voice
Type of resource
- Resource scope
- Dataset
- Name
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Dataset - Intertidal areas
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/100481
- Date info (Creation)
- 2016-06-02T13:38:27
- Date info (Revision)
- 2018-04-22T08:15:21
Metadata standard
- Title
-
AU/NZS ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-3
- Title
-
Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
-
Version 2.0, September 2018
- Citation identifier
- https://pid.geoscience.gov.au/dataset/ga/122551