SI 1006 Great North East Channel, Torres Strait QLD. (HIPP) Bathymetry Acquisition (20210018S)

Brief description

The Great North Channel Torres Strait Multibeam survey was acquired for the Australian Hydrographic Office (AHO) onboard the MV Offshore Guardian and MV Special Order during the period 04 February– 14 April 2021. This was a contracted survey conducted by Guardian Geomatics as part of the Hydroscheme Industry Partnership Program. The survey area encompasses the Great North East Channel of the Torres Strait located between the Stephens Island, Pearce Cay and Rennel Island, Queensland. Bathymetry data was acquired using a Kongsberg EM2040-07 and Norbit iWBMSh Stx 200-400 kHz and processed using CARIS HIPS & SIPS 11.3 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 most up-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: 39597296
version: 1
title: Great North East Channel, Torres Strait, QLD. HIPP Multibeam survey (SI 1006/39597296)
name: SI 1006 Great North East Channel, Torres Strait, QLD
nb-of-points: 224
north: -10.7305486
south: -10.9341041
east: 141.6459376
west: 140.9976403
boundingbox-crs: EPSG:4326
start-date: 04-Feb-21
end-date: 14-Apr-21
survey area: Great North East Channel, Torres Strait, QLD
platform class: Ship
platform class: Boat
vessel: MV Offshore Guardian
vessel: MV Special Order
surveyor: Paul Kennedy
external-reference: SI 1006
classification: Unclassified
abstract: This is a contracted survey conducted for the Australian Hydrographic Office by Guardian Geomatics as part of the Hydroscheme Industry Partnership Program. The survey area is the Great North East Channel of the Torres Strait, QLD. Not to be used for navigation.
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: EPSG:4326
projection: Latitude/Longitude (WGS 84)
vertical-datum: Mean Sea Level (MSL)
instrument-type: Multibeam Echosounder (MBES)
sensor-type: Kongsberg EM2040-07 and Norbit iWBMSh Stx 200-400kHz MBES
sensor-frequency: 300-400 kHz
horizontal-positioning-method: Trimble BD982 (inside a Starpack) using a Marinestar G4+ and Marinestar G2+solutions
vertical-reduction-method: Reduced to LAT using an AHO approved tidal model based on observed tides. Final adjustment to MSL by AHO
accepted-soundings-accuracy (unit(m)): 0.93m @ depth 60m
accepted-positional-accuracy (unit(m)): 1
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
derived-from-asset-id: 26991579
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: Guardian Geomatics
statement_of_requirements: HIPP SOR 2020 v1.2
year of installation: 2021
number of sensor heads: 1
number of soundings: 2048 in dual swath
beamwidth along track (degree): 0.7°
beamwidth across track (degree): 0.7°
pulse length (μs): N/A
absorption (dB/km): N/A
selectable depth range (m): 5-150
vessel speed (kt): 7
start location: Cairns, QLD
end location: Cairns, QLD
sensor operating mode: High Density dual Swath
sensor swath (degrees): 120
grid sounding density: 95% of nodes >5 soundings per node at survey resolution
processing software: CARIS HIPS&SIPS 11.3
processing methodology: Processed in accordance with the HIPP Statement of Requirements 2020 v1.2 using CUBE techniques, 1 and 2m CUBE surfaces were generated as the final L3 product (a gridded surface derived from cleaned point data).
grid resolution (m): 30
number of grids: 1


Processing methodology:
This dataset was produced using CARIS HIPS & SIPS 11.3 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).

AVAILABILITY

Copies of this publication can be obtained from:
Commonwealth of Australia (Geoscience Australia)
clientservices@ga.gov.au
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378, Canberra, ACT, 2601, Australia
Call 1800 800 173,02 6249 9960

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.


DISCLAIMER

This material is copyright Commonwealth of Australia. Other than the Coat of Arms and departmental logo, you may reproduce, distribute, adapt and otherwise freely deal with this material for all purposes (retaining this notice) without charge on the condition that you include the acknowledgement "copyright Commonwealth of Australia (year of publication) and (title of the source)" on all uses. You may not sub-licence this material or use it in a misleading context. While every effort has been made to ensure accuracy, the Commonwealth does not accept any responsibility for the accuracy, completeness or currency of this material, and will not be liable for any loss or damage arising from use of, or reliance on, the material. Nothing in this licence affects the operation of any applicable exception or limitation contained in the Copyright Act 1968.
This dataset is not to be used for any navigation purposes.
Further information may be obtained by contacting copyright@ga.gov.au

COPYRIGHT

(C) Commonwealth of Australia (Geoscience Australia) 2023.