Brief description
The Adelaide Reference Surfaces bathymetry survey was acquired for the Australian Hydrographic Office (AHO) during the period 4 Sep 2020 – 16 Sep 2020. This surface was created from a contracted national reference survey in Gulf St Vincent SA, collected for the purpose of calibrating multibeam echosounders. It was conducted for the Australian Hydrographic Office as part of the Hydroscheme Industry Partnership Program, acquired using Kongsberg EM 2040 multibeam echosounder and Kongsberg EA440 singlebeam echosounder, and processed using Caris HIPS & SIPS. Separate grids in 1m resolution are provided for the 2 surveyed sites within this survey area in MSL, LAT and Ellipsoid vertical datum. The dataset was then exported as a 1m resolution, 32 bit floating point GeoTIFF grid of the survey area.
This dataset is not to be used for navigational purposes.
Lineage
Maintenance and Update Frequency: asNeeded
Statement:
AusSeabed follows the recommended processing methodology as prescribed by the AusSeabed Multibeam Guidelines. Please note that certain products are subject to routine update (e.g. resolution, coverage, temporal variation, guidelines/best practice). The client is advised to refer to the latest version of all documents and products for the mostup-to-date material. For eCat records the version is expressed in the record title whilst products incorporate date of production as per AusSeabed’s file naming convention.
Survey metadata:
aho_id: 49391825
name: AHO Reference Surface Adelaide 2023
nb-of-points: 1850
north: -34.71520676
south: -34.80832719
east: 138.2478669
west: 138.069167
boundingbox-crs: EPSG:4326
start-date: 4/09/2020
end-date: 16/09/2020
survey area: Gulf St Vincent, SA
platform-class: Boat
vessel: N/A
surveyor: N/A
classification: Official
abstract: "This surface was created from a contracted national reference survey in Gulf St Vincent SA, collected for the purpose of calibrating multibeam echosounders. It was conducted for the Australian Hydrographic Office as part of the Hydroscheme Industry Partnership Program.
Separate grids are provided for the 2 surveyed sites within this survey area."
Lineage (Description): "These surfaces are 1-metre Shoal Depth True Position (SDTP) surfaces derived from International Hydrographic Organisation (IHO) Special Order survey, with 1-metre Combined Uncertainty and Bathymetry Estimator (CUBE) surfaces supplied to the Australian Hydrographic Office (AHO), with depth, position, density and uncertainty preserved from the original surface.
AHO Reference Surfaces are created for the calibration of MBES systems. The AHO recommends using them in their native coordinate reference system, as reprojection algorithms may introduce spatial errors. Therefore, this dataset is only available for download from AHO."
data-owner: Australian Hydrographic Office, Commonwealth of Australia
custodian: Geoscience Australia, Commonwealth of Australia
point-of-contact: hydro.licensing@defence.gov.au
legal-constraints: Creative Commons CC BY 4.0
geodetic-datum: WGS84
projection: UTM 53 S
vertical-datum: Mean Sea Level (MSL) | Lowest Astronomical Tide (LAT) | Ellipsoidal Height (ELLIPS)
instrument-type: Multibeam Echo Sounder (MBES)
sensor-type: Kongsberg EM 2040 | Kongsberg EA440 single
sensor-frequency: 200-400 kHz
horizontal-positioning-method: Applanix POS MV Wave Master V5. Position was provided by Fugro Starpack GNSS satellite corrected solution.
vertical-reduction-method: The data was collected using the GNSS coordinate reference system, then reduced to Lowest Astronomical Tide (LAT) using an AHO-approved tidal model based on observed tides. Final adjustment to Mean Sea Level (MSL) by AHO. The data was converted from GNSS coordinates to ellipsoidal height by the contractor.
accepted-soundings-accuracy (unit(m)): 0.25
accepted-positional-accuracy (unit(m)): 0.41
accepted-survey-order: Special Order
accepted-survey-order-url: https://iho.int › pubs › S-44_Edition_6.0.0_EN.pdf
usage-limitation: Not to be used for Navigation
contact-address: 8 Station St, Wollongong, NSW, Australia 2500
GCMD-keyword: EARTH SCIENCE>OCEANS>BATHYMETRY/SEAFLOOR TOPOGRAPHY
GA-keyword: AusSeabed, Bathymetry, Marine, Bathymetry Grids
name of survey contractor: N/A
statement_of_requirements: HIPP Statement of Requirements 2020 v1.2
year of installation: 2020
number of sensor heads: 2
number of soundings: 400
beamwidth along track (degree): 1.3
beamwidth across track (degree): 1.3
pulse length (μs): N/A
absorption (dB/km): N/A
selectable depth range (m): N/A
vessel speed (kt): 6
start port: Adelaide, SA
end port: Adelaide, SA
sensor operating mode: Single Head/Dual Swath - Dynamic
sensor swath (degrees): 135°
grid sounding density: 95% of nodes >5 soundings per node at survey resolution
processing software: CARIS HIPS&SIPS v11.3
processing methodology: Processed in accordance with HIPP SOR 2020 v1.2 using CUBE techniques, 1 and 2m CUBE surfaces generated as the final L3 dataset
grid resolution (m): 1
number of grids: 6
Processing methodology:
This dataset was produced using CARIS HIPS & SIPS as follow:
1. Processed in accordance with HIPP SOR 2020v 1.2 using CUBE techniques, 1m CUBE surfaces generated as the final L3 product (a gridded surface derived from cleaned point data).
2. Data was provided to Geoscience Australia for publication.
3. The final processed grid was exported as a 32-bit floating point Geotiff at 1m resolution, referenced to MSL, WGS 84 (EPSG:32753).
DATA QUALITY
This dataset has been subject to independent post-production validation and testing. Tests have been performed for data completeness, correct spatial representation, attribute accuracy, logical consistency, metadata completeness and correctness, and where appropriate for compliance with Geoscience Australia's data dictionaries.
Errors found in this dataset should be reported to:
Corporate Data Manager
Geoscience Australia
GPO Box 378
Canberra ACT 2601, Australia
Email: Sales@ga.gov.au
Reported Errors will be rectified in subsequent data releases, if any.
Notes
PurposeAcquiring bathymetry dataset
Issued: 23 11 2023
Data time period: 2020-09-04 to 2020-09-16
text: westlimit=138.0692; southlimit=-34.80833; eastlimit=138.2479; northlimit=-34.71521; projection=WGS 84 / UTM zone 53S / projected (EPSG: 32753)
text: uplimit=-33; downlimit=-17; projection=MSL depth / vertical (EPSG: 5715)
Subjects
AusSeabed |
EARTH SCIENCES |
Earth Science | Oceans | Bathymetry/Seafloor Topography | Bathymetry |
HVC_144641 |
Multibeam |
Oceans |
Published_External |
Singlebeam |
bathymetric grids |
bathymetry |
geoscientificInformation |
marine |
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Other Information
AHO ReferenceSurface (Adelaide) 2023 1m (zip) [188.2 MB]
uri :
https://files.ausseabed.gov.au/survey/AHO%20ReferenceSurface%20(Adelaide)%202023%201m.zip
Identifiers
- DOI : 10.26186/149070
- URI : pid.geoscience.gov.au/dataset/ga/149070
- global : 82b0e52f-b5f3-4695-acf3-34d6006404ed
