| Field | Value |
|---|---|
Title |
NSW Environment Protection Authority Post-Flood River Surveys 2022-23 |
Alternative title(s) |
Sonar (Submerged Debris) Program |
Abstract |
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. |
Resource locator |
|
Data Quality Statement |
Name: Data Quality Statement Protocol: WWW:DOWNLOAD-1.0-http--download Description: Data quality statement for NSW Environment Protection Authority Post-Flood River Surveys 2022-23 Function: download |
Unique resource identifier |
|
Code |
f4318ec6-81d9-4139-9d45-d2c326c4e25c |
Presentation form |
Multimedia digital |
Edition |
1 |
Dataset language |
English |
Metadata standard |
|
Name |
ISO 19115 |
Edition |
2016 |
Dataset URI |
https://datasets.seed.nsw.gov.au/dataset/f4318ec6-81d9-4139-9d45-d2c326c4e25c |
Purpose |
Identifcation of in-river hazards and assessment of risk to the environment and human safety in priority areas of NSW estuaries |
Status |
Completed |
Spatial representation type |
grid |
Spatial reference system |
|
Code identifying the spatial reference system |
4283 |
Spatial resolution |
50 cm |
Additional information source |
NA |
| Field | Value |
|---|---|
Topic category |
| Field | Value |
|---|---|
Keyword set |
|
keyword value |
WATER-Hydrology POLLUTION-Water WATER-Rivers |
Originating controlled vocabulary |
|
Title |
ANZLIC Search Words |
Reference date |
2008-05-16 |
Geographic location |
|
West bounding longitude |
150.57083 |
East bounding longitude |
153.55867 |
North bounding latitude |
-34.8755 |
South bounding latitude |
-28.17017 |
NSW Place Name |
Central and Northern NSW Coast |
Vertical extent information |
|
Minimum value |
-100 |
Maximum value |
2228 |
Coordinate reference system |
|
Authority code |
urn:ogc:def:cs:EPSG:: |
Code identifying the coordinate reference system |
5711 |
Temporal extent |
|
Begin position |
2022-01-07 |
End position |
N/A |
Dataset reference date |
|
Resource maintenance |
|
Maintenance and update frequency |
Not planned |
Contact info | |
Contact position |
Data Broker |
Organisation name |
NSW Department of Climate Change, Energy, the Environment and Water |
Telephone number |
131555 |
Email address |
|
Web address |
https://www.nsw.gov.au/departments-and-agencies/dcceew |
Responsible party role |
pointOfContact |
| Field | Value |
|---|---|
Lineage |
Data were collected and processed using either;- 1) singlebeam echosounder (SBES) with side scan sonar using a Ceeducer Pro and TopCon HiPer V positioning with RTK and CORS SmartNet corrections in MGA as GDA2020 Zone 56 on AusGeoid2020; Horizontal positional uncertainty typically within 0.25m or better than International Hydrographic Office (IHO) Special Order and Zone of Control (ZOC) A1; vertical uncertainty was within IHO S44 Special Order and ZOC B with Total Vertical Uncertainty (TVU) accepted at +- 0.15m (see individual survey reports); SBES data were collected and processed in Hypack 2020 and reported at 2-2.5m intervals along track relative to either Indian Spring Low Water or Australian Height Datum: 2) Multibeam (MBES) data were collected using a Norbit Winghead i77h MBES with Applanix Oceanmaster with RTK GNSS for tidal and inertial corrections; lines run with 30% overlap and 100% coverage: data reported relative to AHD and as MGA in GDA2020 gridded at 0.5m and/or 1m CUBE and cloud point soundings; horizontal positional uncertainty was reported generally as <0.5m (THU); and vertical (TVU) <0.2 (95% confidence level - see survey specific QC in Survey Summaries). All datasets are provided as gridded bathymtery (xyz as csv or tab delimited text, tif, dxf), point cloud soundings (xyz), sidescan sonar mosaic (tif), coverage polygons, contours and PDF object (identified hazards) or survey (pdf) and Excel summary reports. |
| Field | Value |
|---|---|
Limitations on public access |
|
| Field | Value |
|---|---|
Responsible party |
|
Contact position |
Data Broker |
Organisation name |
NSW Department of Climate Change, Energy, the Environment and Water |
Telephone number |
131555 |
Email address |
|
Web address |
https://www.nsw.gov.au/departments-and-agencies/dcceew |
Responsible party role |
pointOfContact |
| Field | Value |
|---|---|
Metadata point of contact |
|
Contact position |
Data Broker |
Organisation name |
NSW Department of Climate Change, Energy, the Environment and Water |
Telephone number |
131555 |
Email address |
|
Web address |
https://www.nsw.gov.au/departments-and-agencies/dcceew |
Responsible party role |
pointOfContact |
Metadata date |
2024-02-26T13:09:06.704737 |
Metadata language |
|