Brief description
The Lacepede Channel bathymetry survey was acquired for the Australian Hydrographic Office (AHO) onboard the MV Pacific Conquest and USV Blue Shadow - 901 during the period 19 May 2021 – 22 Sep 2021. This was a contracted survey conducted for the Australian Hydrographic Office by Fugro as part of the Hydroscheme Industry Partnership Program. The survey area encompases an area in Lacepede Channel, Western Australia. Bathymetry data was acquired using a Kongsberg EM2040 Mk II, and processed using Caris Hips & Sips 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: 31776037
version: 1
name: SI 1014 Lacepede Channel, WA
nb-of-points: 1450
north: -16.80293659
south: -17.39027439
east: 122.4536612
west: 121.9236388
boundingbox-crs: EPSG:4326
start-date: 19-May-21
end-date: 22-Sep-21
survey area: Lacepede Channel, Western Australia
platform-class: Ship
vessel: MV Pacific Conquest
platform-class: Aircraft
vessel: VH-VEH - Cessna 441
platform-class: Unmanned vehicle
vessel: USV Blue Shadow - 901
surveyor: Luke Chamberlain (CPHS1)
external-reference: SI 1014
classification: Official
abstract: This is a contracted survey conducted as part of the HIPP. The survey area extending from Talboys Rock (North-West of Coulomb Point) inshore of Lacepede Islands through Lacepede Channel to in the vicinity of South Head, Beagle Bay.
Lineage (Description): This surface is a 30 metre SDTP derived from IHO Order 1A 1 and 2 metre CUBE surfaces supplied to the AHO, with depth, position, density and uncertainty preserved from the original surface. Full resolutions 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: WGS 84 (ITRF 2014)
projection: UTM 51 S (CM 123E)
vertical-datum: Mean Sea Level (MSL)
instrument-type: Multibeam Echosounder (MBES), Airborne LIDAR Bathymetry (ALB)
sensor-type: Kongsberg EM2040 Mk II, LADS HD+, Riegl VQ-820-G
sensor-frequency: 300 Khz
horizontal-positioning-method: Applanix POSMV, Fugro Starfish/ Applinax POS AV, Fugro Marine Star WADGPS
vertical-reduction-method: Reduced to LAT using an AHO approved tidal model based on observed tides at eight locations, and then shifted to MSL via the AHO MSL-LAT model.
accepted-soundings-accuracy (unit(m)): 0.5
accepted-positional-accuracy (unit(m)): 3
accepted-survey-order: Order 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: Fugro
statement_of_requirements: HIPP SOR 2021 v1.2
year of installation: 2021
number of sensor heads: N/A
number of soundings: N/A
beamwidth along track (degree): N/A
beamwidth across track (degree): N/A
pulse length (μs): N/A
absorption (dB/km): N/A
selectable depth range (m): N/A
vessel speed (kt): N/A
start port: Broome, WA
end port: Broome, WA
sensor operating mode: MBES - Equidustant - Ultra high Density, LADS HD+ P2.8,
sensor swath (degrees): MBES - 120° to 130°, LIDAR - N/A
grid sounding density: Variable depending on sensor - 95% of nodes > 2 soundings per node at survey resolution
processing software: MBES - CARIS, ALB - Fugro LADS GS
processing methodology: Processed in accordance with HIPP SOR 2020 v1.2 using CUBE techniques, 1m CUBE surfaces generated as the final L3 dataset.
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: 2021-05-19 to 2021-09-22
text: westlimit=121.9236; southlimit=-17.39027; eastlimit=122.4537; northlimit=-16.80294; projection=WGS 84 / geographic 2D (EPSG: 4326)
text: uplimit=11; downlimit=-27; projection=MSL depth / vertical (EPSG: 5715)
Subjects
AusSeabed |
EARTH SCIENCES |
Earth Science | Oceans | Bathymetry/Seafloor Topography | Bathymetry |
HVC_144641 |
LiDAR |
MV Pacific Conquest |
Multibeam |
Oceans |
Published External |
Published_External |
USV Blue Shadow 901 |
VH-VEH Cessna 441 |
bathymetric grids |
bathymetry |
geoscientificInformation |
marine |
multibeam |
User Contributed Tags
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Other Information
Lacepede Channel, WA (HIPP SI 1014) Bathymetry 2021 30m (zip) [45.3 MB]
Identifiers
- DOI : 10.26186/149026
- URI : pid.geoscience.gov.au/dataset/ga/149026
- global : b8505728-465e-4af4-9a84-b6db16bbeba9
