<BR>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.

<BR>This dataset was produced using QPS QINSy and the AusSeabed-recommended processing methodology as follows.

<BR>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.

<BR>Full resolution surfaces available from AHO on request under restricted licence.

<BR>

<BR>Survey metadata:

<BR>The multibeam bathymetry was acquired by the following survey:

aho_id: 39597302<BR>

version: 1<BR>

title: Northern Approaches to Broome, WA. HIPP Multibeam survey (SI 1010/39597302)<BR>

name: SI 1010 Northern Approaches to Broome, WA.HIPP Multibeam Survey (SI 1010/20200020S))<BR>

nb-of-points: 632<BR>

north: -17.2841481<BR>

south: -17.9709583<BR>

east: 122.1663952<BR>

west: 121.9816969<BR>

boundingbox-crs: EPSG:4326<BR>

start-date: 05-Aug-20<BR>

end-date: 02-Oct-20<BR>

survey area: Northern Approaches to Broome, Western Australia<BR>

platform-class: Ship<BR>

vessel: MV Bhagwan K<BR>

surveyor: Charles Collins<BR>

external-reference: SI 1010<BR>

classification: Unclassified<BR>

abstract: This is a contracted survey conducted for the Australian Hydrographic Office by EGS as part of the Hydroscheme Industry Partnership Program. The survey area encompases the northern approaches to Broome, WA. Not to be used for navigation.<BR>

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.<BR>

data-owner: Australian Hydrographic Office, Commonwealth of Australia<BR>

custodian: Geoscience Australia, Commonwealth of Australia<BR>

point-of-contact: hydro.licensing@defence.gov.au<BR> hydro.licensing@defence.gov point-of-contact: hydro.licensing@defence.gov.au<BR>

legal-constraints: Creative Commons CC BY 4.0<BR>

geodetic-datum: EPSG:4326<BR>

projection: Latitude/Longitude (WGS 84)<BR>

vertical-datum: Mean Sea Level (MSL)<BR>

instrument-type: Multibeam Echosounder (MBES)<BR>

sensor-type: Kongsberg EM 2040D<BR>

sensor-frequency: 200-400 kHz<BR>

horizontal-positioning-method: Applanix POSMV Oceanmaster with MarineStar G4+ GNSS corrections.<BR>

vertical-reduction-method: Reduced to LAT using an AHO approved tidal model based on observed tides. Final adjustment to MSL by AHO<BR>

accepted-soundings-accuracy (unit(m)): 0.22<BR>

accepted-positional-accuracy (unit(m)): 1<BR>

accepted-survey-order: Order 1A<BR>

accepted-survey-order-url: https://iho.int › pubs › S-44_Edition_6.0.0_EN.pdf<BR>

usage-limitation: Not to be used for Navigation<BR>

derived-from-asset-id: 23816811<BR>

contact-address: 8 Station St, Wollongong, NSW, Australia 2500<BR>

GCMD-keyword: EARTH SCIENCE>OCEANS>BATHYMETRY/SEAFLOOR TOPOGRAPHY<BR>

GA-keyword: AusSeabed, Bathymetry, Marine, Bathymetry Grids<BR>

name of survey contractor: EGS<BR>

statement_of_requirements: HIPP SOR 2020 v1.2<BR>

year of installation: 2020<BR>

number of sensor heads: 2<BR>

number of soundings: 2048<BR>

beamwidth along track (degree): 0.7°<BR>

beamwidth across track (degree): 0.7°<BR>

pulse length (μs): N/A<BR>

absorption (dB/km): N/A<BR>

selectable depth range (m): N/A<BR>

vessel speed (kt): 5.5<BR>

start location: Broome, WA<BR>

end location: Broome, WA<BR>

sensor operating mode: Dual Swath Mode<BR>

sensor swath (degrees): 140°<BR>

grid sounding density: 95% of nodes >5 soundings per node at survey resolution<BR>

processing software: QPS QINSy 9.2.3<BR>

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).<BR>

grid resolution (m): 30<BR>

number of grids: 1<BR>

<BR>

<BR>Processing methodology:

<BR>This dataset was produced using QPS QINSy 9.2.3 as follow:

<BR>1. Processed in accordance with HIPP Statement Of Requirements 2020v 1.2 using CUBE techniques, 1 and 2m CUBE surfaces generated as the final L3 product (a gridded surface derived from cleaned point data).

<BR>2. Data was provided to Geoscience Australia for publication

<BR>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).

<BR>

<BR>AVAILABILITY

<BR>

<BR>Copies of this publication can be obtained from:

<BR>Commonwealth of Australia (Geoscience Australia)

<BR> clientservices@ga.gov.au clientservices@ga.gov <BR> clientservices@ga.gov.au

<BR>Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378, Canberra, ACT, 2601, Australia

<BR> Call 1800 800 173,02 6249 9960

<BR>

<BR>DATA QUALITY

<BR>

<BR>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.

<BR>Errors found in this dataset should be reported to:

<BR>Corporate Data Manager

<BR>Geoscience Australia

<BR>GPO Box 378

<BR>Canberra ACT 2601, Australia

<BR>Email: Sales@ga.gov.au Sales@ga.gov <BR>Email: Sales@ga.gov.au

<BR>Reported Errors will be rectified in subsequent data releases, if any.

<BR>

<BR>

<BR>DISCLAIMER

<BR>

<BR>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.

<BR>This dataset is not to be used for any navigation purposes.

<BR>Further information may be obtained by contacting copyright@ga.gov.au copyright@ga.gov <BR>Further information may be obtained by contacting copyright@ga.gov.au

<BR>

<BR>COPYRIGHT

<BR>

<BR>(C) Commonwealth of Australia (Geoscience Australia) 2023.

<BR