• IMAS Metadata Catalogue
  •  
  •  
  •  

Satellite Mapping of Bathymetry and Habitats of Ashmore Reef and Cartier Island Marine Parks

Parks Australia - Our Marine Parks Grants Round 3 Project: Satellite Mapping of Bathymetry and Habitats of Ashmore and Cartier Island Marine Parks


This project aimed to map the satellite-derived bathymetry (SDB) and benthic habitats at 2m horizontal spatial resolution, for the shallow waters (~0-25 m) of the Ashmore Reef and Cartier Island Marine Parks. These critical geospatial data layers provide the essential environmental baseline information for the long-term monitoring and management of these Marine Parks. Mapping the shallow water zone is of importance both from an environmental and socioeconomic perspective. Having access to digital, georeferenced, high-resolution, satellite-derived maps of bathymetry and benthic habitats of shallow water areas, is of fundamental use in the areas of navigation, ecological research, environmental modelling, management and conservation, and monitoring the impacts from climate change.

Simple

Identification info

Date (Publication)
2023-07-05T00:00:00

Principal investigator

EOMAP Australia Pty Ltd - Twiggs, Emily
Credit
Director of National Parks (Parks Australia), SDB©EOMAP
Status
Completed

Point of contact

EOMAP Australia Pty Ltd - Twiggs, Emily
Maroochydore
Queensland
4558
Australia
Topic category
  • Biota
  • Geoscientific information

Extent

N
S
E
W


Temporal extent

Time period
2022-08-01 2022-09-30

Vertical element

Minimum value
0
Maximum value
30
Identifier
EPSG::5715
Name
MSL depth
Maintenance and update frequency
Not planned
Keywords (Theme)
  • Habitat Mapping
  • Seafloor Classification
  • Satellite Mapping
  • Marine Parks
Global Change Master Directory Earth Science Keywords, Version 8.5
  • EARTH SCIENCE | OCEANS | BATHYMETRY/SEAFLOOR TOPOGRAPHY
  • EARTH SCIENCE | OCEANS | BATHYMETRY/SEAFLOOR TOPOGRAPHY | BATHYMETRY
  • EARTH SCIENCE | BIOSPHERE | ECOSYSTEMS | MARINE ECOSYSTEMS | BENTHIC
  • EARTH SCIENCE | BIOLOGICAL CLASSIFICATION
AODN Platform Vocabulary
  • Maxar's WorldView-3
AODN Discovery Parameter Vocabulary
  • Habitat Mapping
AODN Instrument Vocabulary
  • Multispectral Satellite Sensor
AODN Geographic Extents Vocabulary
  • Marine Features (Australia) | Marine Features (Australia) | Ashmore Reef, WA
  • Offshore Islands (Australia) | Offshore Islands (Australia) | Ashmore & Cartier Islands

Resource constraints

Linkage
https://licensebuttons.net/l/by/4.0/88x31.png

License Graphic

Title
Creative Commons Attribution 4.0 International License
Alternate title
CC-BY
Edition
4.0


>

Website
https://creativecommons.org/licenses/by/4.0/

License Text

Other constraints
Cite data as: Satellite Mapping of Bathymetry and Habitats of Ashmore Reef and Cartier Island Marine Parks (2023). Director of National Parks (Parks Australia), EOMAP Australia Pty Ltd. Data accessed at https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/b03e8b87-7e43-4152-9a2c-6b1aa6ae9296 on [access date].
Other constraints
https://www.eomap.com/exchange/pdf/EOMAP_Terms_Conditions_for_User_of_EOMAP_Products.pdf
Language
English
Character encoding
UTF8

Content Information

Content type
Physical measurement

Identifier

Code
Habitat Mapping
Name
Classes

Distribution Information

Distribution format
  • Geotiff, ascii xyz, shapefile, kmz

OnLine resource
DATA ACCESS - Ashmore Reef & Cartier Island satellite-derived bathymetry [direct download data package 820 MB .zip]

OnLine resource
DATA ACCESS - Ashmore Reef & Cartier Island classified habitat [direct download data package 75 MB .zip]

OnLine resource
View and interact with data on Seamap Australia online mapping portal

OnLine resource
PDF map of bathymetry - Ashmore Reef

OnLine resource
PDF map of bathymetry - Cartier Island

OnLine resource
PDF map of bathymetric vertical uncertainties - Ashmore Reef

OnLine resource
PDF map of bathymetric vertical uncertainties - Cartier Island

OnLine resource
seamap:EOMAP_AshmoreCartier_bathymetry

MAP - Ashmore Reef & Cartier Island high-resolution (2m) bathymetry

OnLine resource
seamap:SeamapAus_WA_EOMAP_AshmoreCartier_2022_grp

MAP - Ashmore Reef & Cartier Island habitat classification

Resource lineage

Statement
The Ashmore Reef and Cartier Island Marine Park survey, was acquired by the Australian Government (Parks Australia) as part of Our Marine Parks Grant - Round 3, in 2022-2023 and undertaken by EOMAP Australia Pty Ltd and EOMAP GmbH & Co.KG. The data provides bathymetric and seafloor classification information based on optical satellite image data. Maxar's WorldView-3 multispectral satellite data from August and September 2022, were processed by the Modular and Inversion System (MIP) by EOMAP GmbH & Co.KG. The MIP is designed for the physically based assessment of hydro-biological parameters from multi- and hyperspectral remote sensing data. EOMAPs Satellite-Derived Bathymetry (SDB) method relies on the reflected light energy which is measured at the satellite sensor in space. In order to measure the water column thickness, the sea bottom reflection must be separated from all other simultaneously measured portions of light. Other contributors of light scattered to the sensor are atmospheric molecules and aerosols, adjacent scattering from land, the water surface reflection, and light scattered and absorbed due to particular properties of water constituents and the pure water itself. The pure water itself also absorbs light in a spectrally specific manner and therefore leaves unique signatures in the signal while the light passes through the water column and returns after reflection at the sea bottom. This property is relevant to estimate water depth from optical satellite imagery. As many properties can vary over space and time, effective correction, regularisation and retrieval algorithms must be applied to avoid unstable results. EOMAP developed and maintains these unique algorithm and its workflows for almost two decades. The maximum depth the system is able to sense is related to the complex interaction of radiance of bottom material, incident sun angle and intensity, and the type and quantity of organics or sediments in the water column. As a rule-of-thumb, satellite-derived bathymetry should be capable of sensing bottom to depths equal to one to one point five times the Secchi depth. EOMAP's Seafloor Classification (SFC) method is based on seafloor reflection at different wavelengths, which is being used to run an object-based classification procedure which groups objects of similar spectral characteristics, shape and texture into different classes of seafloor coverage. Correction modules applied to the satellite imagery: - Corrected for Satellite sensor noise: Yes - Corrected for atmospheric effects: Yes - Corrected for the effect of adjacent land reflectance: Yes - Corrected for effects of turbidity: Yes Datum: Lowest Astronomical Tide based on Admirality Total Tide Station Ashmore Reef (West Inlet), 6274 (HAT: +4.3m above CD, MSL: +2.09m above CD, SATREC: +2.2m above CD, LAT: +0.1m above CD), Data type: 32bit Geotiff and ASCII xyz text file, Units: m NoDataValue: -9999 www.eomap.com
Hierarchy level
Dataset
Hierarchy level
Dataset

Platform

Identifier

Code
Maxar's WorldView-3

Instrument

Identifier

Code
Multispectral Satellite Sensor

Metadata

Metadata identifier
urn:uuid/b03e8b87-7e43-4152-9a2c-6b1aa6ae9296

Language
English
Character encoding
UTF8

Distributor

IMAS Data Manager -
Institute for Marine and Antarctic Studies
Private Bag 129
Hobart
Tasmania
7001
Australia
Institute for Marine and Antarctic Studies (IMAS) website >

Parent metadata
  • Seamap Australia National Benthic Habitat Layer (NBHL)

Type of resource

Resource scope
Dataset
Name
IMAS Dataset level record
Metadata linkage
https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/b03e8b87-7e43-4152-9a2c-6b1aa6ae9296

Point of truth URL of this metadata record

Date info (Creation)
2023-06-30T00:00:00
Date info (Revision)
2025-01-10T23:32:42

Metadata standard

Title
ISO 19115-3:2018
 
 

Overviews

PA_logo.jpg
EOMAP_logo.png

Spatial extent

N
S
E
W


Keywords

Habitat Mapping Marine Parks Satellite Mapping Seafloor Classification
AODN Discovery Parameter Vocabulary
Habitat Mapping
AODN Instrument Vocabulary
Multispectral Satellite Sensor
AODN Platform Vocabulary
Maxar's WorldView-3
Global Change Master Directory Earth Science Keywords, Version 8.5
EARTH SCIENCE | BIOLOGICAL CLASSIFICATION EARTH SCIENCE | BIOSPHERE | ECOSYSTEMS | MARINE ECOSYSTEMS | BENTHIC EARTH SCIENCE | OCEANS | BATHYMETRY/SEAFLOOR TOPOGRAPHY EARTH SCIENCE | OCEANS | BATHYMETRY/SEAFLOOR TOPOGRAPHY | BATHYMETRY

Provided by

Share on social sites

Access to the record in catalogue
Read here the full details and access to the data.

Associated resources

Not available


  •  
  •  
  •