Dataset
NSW Department of Climate Change, Energy, the Environment and Water
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NSW Environment Multi Beam Echo Sounder Gridded Data

Gridded multi-beam echousounder (MBES) bathymetry and backscatter data acquired using NSW government's (NSW Department of Climate Change Energy Environment and Water) multi-beam echosounder (MBES) systems aboard RV's Bombora, Seascan and Glaucus. Fieldwork surveys were completed as part of the SeabedNSW program funded by NSW government under State-wide Science (2022-30), Coastal Reforms (2015-2022), HabMap Program (2005-2015) or under collaboration with partner agencies or institutions (DPI, Parks Australia, NESP). Surveys are predominantly on the open coast and within NSW state waters (2017) with Applanix Wavemaster POSMV (>2011) providing positioning, height (RTK) and 3D motion solution; or Edgetech swath system w sidescan (>2021). MBES was collected in GS+ (GeoAcoustics) or Hypack with attitude and positional data acquired in POSView and post processed using POSPac either Single-Base or Precise-Point-Positioning modules for improved vessel Smoothed Best Estimate of Trajectory. Data were cube modeled in Fledermaus/Qimera software (>2010) to IHO 1B standard and cleaned-soundings exported before being gridded using bin-weighted averaging (generally 5 m grid cell size) relative to Australian Height Datum and issued in grid coordinates (UTM WGS84 Zone55 or 56; GDA2020 Zone 55 or 56). General details on vessel setup, mobilisation and processing are provided at https://www.environment.nsw.gov.au/-/media/OEH/Corporate-Site/Documents/Research/Our-science-and-research/seabed-nsw-standard-operating-procedures-multibeam-surveying-190101.pdf with survey specific details in the Survey Report and survey Rigor Statement (provided upon request). Data packages provided via the Australian Oceanographic Data Network (https://portal.aodn.org.au/) include bathymetry and backscatter in multiple formats; while those provided on AusSeabed (https://portal.ga.gov.au/persona/marine) are gridded bathymetry and backscatter data as geotif only. Data are not to be used for navigation purposes.

Data and Resources

  • Data Quality Statement PDF

    Data quality statement for NSW Environment Multi Beam Echo Sounder Surveys

  • AODN URL

    Data available from AODN

Metadata Summary What is metadata?

Field Value
Language English
Alternative Title Seabed NSW state-wide mapping program
Edition 1
Purpose foundational data collection; baseline for monitoring
Frequency of change Unknown
Keywords MARINE-Biology,MARINE-Coasts,MARINE-Reefs,MARINE-Geology-and-Geophysics,ECOLOGY-Habitat,GEOSCIENCES-Geomorphology
Field of Research (optional) Landscape Ecology,Wildlife and Habitat Management,Surveying incl Hydrographic Surveying,Geospatial Information Systems
Metadata Date 2021-04-10
Date of Asset Creation 2021-10-04
Date of Asset Publication 2021-11-18
License Creative Commons Attribution 4.0
Vector representation
Record 1
Object type
Point
Object count
7279
Geospatial Topic Imagery base maps earth cover
NSW Place Name New South Wales Marine Estate
Extent

Dataset extent
Temporal Coverage From 2005-01-01
Datum WSG84 / UTM Zone 56S
Legal Disclaimer Read
Attribution NSW Department of Climate Change, Energy, the Environment and Water asserts the right to be attributed as author of the original material in the following manner: "© State Government of NSW and NSW Department of Climate Change, Energy, the Environment and Water 2021"