Brief description
The Eclipse Shoals to Lombadina Point, Kimberly Region bathymetry survey was acquired for the Australian Hydrographic Office (AHO) onboard the MV Outer Limit during the period 12 September 2022 – 3 December 2022. This was a contracted survey conducted for the Australian Hydrographic Office by Ocean Infinity as part of the Hydroscheme Industry Partnership Program. The survey area encompases an area in Eclipse Shoals to Lombadina Point, Kimberley region, Western Australia. Bathymetry data was acquired using a Kongsberg EM2040P MKII, and processed using QPS Qimera processing software. The dataset was then exported as a 30m 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.
This surface is a 30 metre Shoal Depth True Position (SDTP) surface derived from International Hydrographic Organisation (IHO) Order 1A, 1 and 2 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.
Full resolution surfaces available from AHO on request under restricted licence.
Survey metadata:
aho_id: 46417253
version: 1
name: SI 1025 Eclipse Shoals to Lombadina Point, NT
nb-of-points: 193
north: -16.49260738
south: -16.88774308
east: 122.8226946
west: 122.3574771
boundingbox-crs: EPSG:4326
start-date: 12-Sep-22
end-date: 3-Dec-22
survey area: Eclipse Shoals to Lombadina Point, WA.
platform-class: Ship
vessel: MV Outer Limit
surveyor: Martin Tunwell
external-reference: SI 1025
classification: Offical
abstract: This is a contracted survey conducted for the Australian Hydrographic Office by Ocean Infinity as part of the Hydroscheme Industry Partnership Program. The survey area is Eclise Shoals to Lombadina Point, WA.
Lineage (Description): This surface is a 30 metre Shoal Depth True Position (SDTP) surface derived from International Hydrographic Organisation (IHO) Order 1A, 1 and 2 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. Full resolution surfaces available from AHO on request under restricted licence.
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: Latitude/Longitude (WGS 84)
vertical-datum: Mean Sea Level (MSL)
instrument-type: Multibeam Echosounder (MBES)
sensor-type: Kongsberg EM2040P MKII
sensor-frequency: 300kHz
horizontal-positioning-method: Septentrio AsterX-U Marine GNSS
vertical-reduction-method: Reduced to Lowest Astronomical Tide (LAT) using an AHO-approved tidal model based on observed tides. Final adjustment to MSL by AHO.
accepted-soundings-accuracy (unit(m)): 0.4
accepted-positional-accuracy (unit(m)): 1
accepted-survey-order: IHO 1a
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: Ocean Infinity
statement_of_requirements: SOR 2022.3
year of installation: 2022
number of sensor heads: 1
number of soundings: 1024
beamwidth along track (degree): 1.3
beamwidth across track (degree): 1.3
pulse length (μs): 14
absorption (dB/km): N/A
selectable depth range (m): max 600
vessel speed (kt): 6.5
start port: Exmouth, WA
end port: Exmouth, WA
sensor operating mode: Equidistant High Density
sensor swath (degrees): 140
grid sounding density: 95% of nodes >5 soundings per node at survey resolution
processing software: QPS Qimera 2.5.0
processing methodology: Processed in accordance with HIPP SOR 2022.3 using Combined Uncertainty and Bathymetry Estimator (CUBE) techniques, 1 and 2m CUBE surfaces generated as the final L3 dataset. 30 metre Shoal Depth True Position (SDTP) surface derived from 1 and 2 metre CUBE surfaces supplied to the Australian Hydrographic Office (AHO), with depth, position, density and uncertainty preserved from the original surface. Full resolution surfaces available from AHO on request under restricted licence.
grid resolution (m): 30
number of grids: 1
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 and 2m 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 30 m resolution, referenced to MSL, WGS 84 (EPSG:4326).
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: 06 11 2023
Data time period: 2022-09-12 to 2022-12-03
text: westlimit=122.3575; southlimit=-16.88774; eastlimit=122.8227; northlimit=-16.49261; projection=WGS 84 / geographic 2D (EPSG: 4326)
text: uplimit=-7; downlimit=-30; projection=MSL depth / vertical (EPSG: 5715)
Subjects
AusSeabed |
Earth Science | Oceans | Bathymetry/Seafloor Topography | Bathymetry |
Earth Sciences |
HVC_144641 |
Oceans |
Published External |
Published_External |
bathymetric grids |
bathymetry |
geoscientificInformation |
marine |
multibeam |
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Other Information
Eclipse Shoals to Lombadina Point, Kimberley region (HIPP SI 1025) Bathymetry 2021 30m (zip) [22.1 MB]
Identifiers
- DOI : 10.26186/149043
- URI : pid.geoscience.gov.au/dataset/ga/149043
- global : 4e6e7ddf-d643-4209-ab5f-978a381f6b30
