Authors / CoAuthors
Abstract
The Intertidal Extents Model (ITEM) product is a national dataset of the exposed intertidal zone; the land between the observed highest and lowest tide. ITEM provides the extent and topography of the intertidal zone of Australia's coastline (excluding off-shore Territories). This information was collated using observations in the Landsat archive since 1986. ITEM can be a valuable complimentary dataset to both onshore LiDAR survey data and coarser offshore bathymetry data, enabling a more realistic representation of the land and ocean interface.
Product Type
dataset
eCat Id
113842
Contact for the resource
Owner
Cnr Jerrabomberra Ave and Hindmarsh Dr
Symonston
ACT
2609
AU
Custodian
Cnr Jerrabomberra Ave and Hindmarsh Dr
Symonston
ACT
2609
AU
Digital Object Identifier
Keywords
-
- Published_External
Publication Date
2017-11-02T08:00:00
Creation Date
2017-05-09T01:27:42
Security Constraints
Legal Constraints
Status
Purpose
Maintenance Information
asNeeded
Topic Category
geoscientificInformation
Series Information
Lineage
The Intertidal Extents Model (ITEM v2.0) product analyses GA’s historic archive of satellite imagery to derive a model of the spatial extents of the intertidal zone throughout the tidal cycle. The model can assist in understanding the relative elevation profile of the intertidal zone, delineating exposed areas at differing tidal heights and stages. The product differs from previous methods used to map the intertidal zone which have been predominately focused on analysing a small number of individual satellite images per location (e.g Ryu et al., 2002; Murray et al., 2012). By utilising a full 30year time series of observations, the methodology enables us to overcome the requirement for clear, high quality observations acquired concurrent to the time of high and low tide. basic_html
Parent Information
GA Earth Observation - Derived
UUID - 4c7e5266-feb2-4103-9377-10f5605d9d89
Extents
[-1119030, -4856630, -1943830, 2170690]
Reference System
Spatial Resolution
Service Information
Associations
Source Information
Please refer to the lineage section.