Dataset
NSW Department of Climate Change, Energy, the Environment and Water
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NSW Environment Protection Authority Post-Flood River Surveys 2022-23

Hydrographic data (multibeam or singlebeam) and estuary-river bed imagery (side-scan) collected to identify river-bed hazards in targeted sections of 13 New South Wales (NSW) coastal rivers/estuaries following significant 2021-22 flood events for the state's Environment Protection Authority. Surveys were completed under contract by two commercial survey companies Hydrographic & Cadastral Survey (H&C) and SandMap, during 2022-23 as primarily target detection with hydrographic depth determination for safety of navigation, a secondary requirement. SandMap surveys covered sections of the Bellinger-Kalang, Clarence, Nambucca, Richmond, Tweed and Wilson rivers. H&C Survey surveys covered sections of Woronora, Shoalhaven, Camden Haven, Hastings, Macleay, Manning and Hawkesbury rivers. Surveys were completed to identify the location of potential in-river navigational hazards and/or potential sources of environmental harm or pollution following significant flood events within NSW 2021 and 2022. Although the vertical and horizontal precision and accuracy is expected to be high, the user should understand how the data are collected and the horizontal and vertical uncertainties inherent in the data and products (see reports). The data provided here are deemed 'Not for Navigation'. Funding was provided under the joint Commonwealth-State Disaster Recovery Funding Arrangements for the flood recovery program and survey contracts were awarded following a tender process. Final data packages, output products and survey reports were provided by end of the financial year 2022-23 and have been backed up on DPE Environment and Heritage groups Science Data Compute facility.

Data and Resources

    Data Access

    Please email data.broker@environment.nsw.gov.au to request access to this dataset. A Departmental representative will be in contact with you shortly, usually within 2 business days, with instruction on accessing the dataset. There may be a requirement to negotiate a data licence agreement.

  • Data Quality Statement PDF

    Data quality statement for NSW Environment Protection Authority Post-Flood...

Metadata Summary What is metadata?

Field Value
Language English
Alternative Title Sonar (Submerged Debris) Program
Edition 1
Purpose Identifcation of in-river hazards and assessment of risk to the environment and human safety in priority areas of NSW estuaries
Frequency of change Not planned
Keywords WATER-Hydrology,POLLUTION-Water,WATER-Rivers
Field of Research (optional) Surveying incl Hydrographic Surveying
Metadata Date 2023-09-01
Date of Asset Creation 2023-06-30
Date of Asset Publication 2023-12-20
License Creative Commons Attribution 4.0
Geospatial Topic Environment
NSW Place Name Central and Northern NSW Coast
Extent

Dataset extent
Temporal Coverage From 2022-07-01 - 2023-06-30
Datum GDA 2020 / MGA Zone 56
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 2023"