Data

RV Linnaeus Voyage LI2019_V01 EM2040c Multibeam Echosounder Data

Australian Ocean Data Network
CSIRO (Associated with) CSIRO O&A, Information & Data Centre (Point of contact) CSIRO Oceans & Atmosphere - Hobart (Associated with) CSIRO/Oceans and Atmosphere (Associated with) Data Officer (AR), Hobart (Processor of)
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://marlin.csiro.au/geonetwork/srv/eng/catalog.search#/metadata/5eb00030-a97d-4567-a681-76c2d635af4c&rft.title=RV Linnaeus Voyage LI2019_V01 EM2040c Multibeam Echosounder Data&rft.identifier=5eb00030-a97d-4567-a681-76c2d635af4c&rft.publisher=Australian Ocean Data Network&rft.description=This record describes multibeam echosounder data collected on RV Linnaeus voyage LI2019_V01, 'Ningaloo Deepwater Reefs Hydrographic Survey' which departed Hillary's Boat Harbour, Perth, WA on the 15th March 2019 and concluded at Coral Bay, WA on the 29th March 2019.The Kongsberg EM2040c multibeam echosounder (single transceiver) was used to acquire seafloor bathymetry and backscatter information (and watercolumn backscatter) offshores of Ningaloo Reef, WA. Transit data to and from nightly anchorages has also been recorded.The EM2040c provides a 1.3° by 1.3° transmit and receive angular resolution respectively (single transceiver). The echosounder's nominal frequency range was 200 kHz and it was operated in dual swath mode.Data are stored in *.all raw format for bathymetry and backscatter and *.wcd format for watercolumn backscatter at CSIRO. There are 140 files totalling 32.5 GB of raw .all data, and 103 files totalling 178 GB of raw .wcd in the dataset.Sound velocity profiles were applied to this data during data acquisition. Bathymetry data contained in *.all format are corrected for motion and position.Tide corrections were applied to the processed data in Caris using a GPS Tide based on the Applanix PosMV and Marinestar G4+ Ellipsoidal ht and thereafter reduced to AHD (Australian Height Datum) using a AusGeoid09 model. Processed data has had outliers removed. Processed line data are available in *.gsf and ascii format, and processed bathymetry and backscatter grids in geotiff format.Additional information regarding this dataset, including further information on processing streams, is contained in the GSM data acquisition and processing report. Additional data products may be available on request. The raw data is offline but is available on request.Progress Code: completedMaintenance and Update Frequency: asNeededStatement: Original field data. Processed data are SV corrected, GPS Tide applied and edited using CARIS version 10.4&rft.creator=Anonymous&rft.date=2016&rft.coverage=westlimit=113.25; southlimit=-23.5; eastlimit=114; northlimit=-22.5; projection=WGS 84 (EPSG:4326)&rft.coverage=westlimit=113.25; southlimit=-23.5; eastlimit=114; northlimit=-22.5; projection=WGS 84 (EPSG:4326)&rft_rights=Attribution 4.0 https://creativecommons.org/licenses/by/4.0/&rft_rights=&rft_rights=Data is made available under a Creative Commons Attribution 4.0 International Licence, please see link. Data is supplied 'as is' without any warranty or guarantee except as required by law to be given to you. The data may not be free of error, comprehensive, current or appropriate for your particular purpose. You accept all risk and responsibility for its use. ATTRIBUTION STATEMENT: The dataset [Insert-dataset-name-here] downloaded on [Insert-DD-Mmm-YYYY-here] was collected on voyage [Insert-voyage-name-here] by the [Marine National Facility/Shallow Survey Facility].&rft_subject=oceans&rft_subject=geoscientificInformation&rft_subject=Ship: Linnaeus (RV)&rft_subject=Shallow Swath Internal Facility&rft_subject=Earth Science | Oceans | Bathymetry/Seafloor Topography&rft_subject=Coastal Waters (Australia) | West Australia Coast, WA&rft_subject=Marine Features (Australia) | Ningaloo Marine Park, WA&rft_subject=Multibeam Echosounder - EM2040c&rft.type=dataset&rft.language=English Access the data
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Attribution 4.0
https://creativecommons.org/licenses/by/4.0/

Data is made available under a Creative Commons Attribution 4.0 International Licence, please see link. Data is supplied 'as is' without any warranty or guarantee except as required by law to be given to you. The data may not be free of error, comprehensive, current or appropriate for your particular purpose. You accept all risk and responsibility for its use. ATTRIBUTION STATEMENT: The dataset [Insert-dataset-name-here] downloaded on [Insert-DD-Mmm-YYYY-here] was collected on voyage [Insert-voyage-name-here] by the [Marine National Facility/Shallow Survey Facility].

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This record describes multibeam echosounder data collected on RV Linnaeus voyage LI2019_V01, 'Ningaloo Deepwater Reefs Hydrographic Survey' which departed Hillary's Boat Harbour, Perth, WA on the 15th March 2019 and concluded at Coral Bay, WA on the 29th March 2019.

The Kongsberg EM2040c multibeam echosounder (single transceiver) was used to acquire seafloor bathymetry and backscatter information (and watercolumn backscatter) offshores of Ningaloo Reef, WA. Transit data to and from nightly anchorages has also been recorded.

The EM2040c provides a 1.3° by 1.3° transmit and receive angular resolution respectively (single transceiver). The echosounder's nominal frequency range was 200 kHz and it was operated in dual swath mode.

Data are stored in *.all raw format for bathymetry and backscatter and *.wcd format for watercolumn backscatter at CSIRO. There are 140 files totalling 32.5 GB of raw .all data, and 103 files totalling 178 GB of raw .wcd in the dataset.

Sound velocity profiles were applied to this data during data acquisition. Bathymetry data contained in *.all format are corrected for motion and position.

Tide corrections were applied to the processed data in Caris using a GPS Tide based on the Applanix PosMV and Marinestar G4+ Ellipsoidal ht and thereafter reduced to AHD (Australian Height Datum) using a AusGeoid09 model. Processed data has had outliers removed. Processed line data are available in *.gsf and ascii format, and processed bathymetry and backscatter grids in geotiff format.

Additional information regarding this dataset, including further information on processing streams, is contained in the GSM data acquisition and processing report. Additional data products may be available on request. The raw data is offline but is available on request.

Lineage

Progress Code: completed
Maintenance and Update Frequency: asNeeded
Statement: Original field data. Processed data are SV corrected, GPS Tide applied and edited using CARIS version 10.4

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114,-22.5 114,-23.5 113.25,-23.5 113.25,-22.5 114,-22.5

113.625,-23

text: westlimit=113.25; southlimit=-23.5; eastlimit=114; northlimit=-22.5; projection=WGS 84 (EPSG:4326)

Subjects
Coastal Waters (Australia) | West Australia Coast, WA | Earth Science | Oceans | Bathymetry/Seafloor Topography | Marine Features (Australia) | Ningaloo Marine Park, WA | Multibeam Echosounder - EM2040c | Shallow Swath Internal Facility | Ship: Linnaeus (RV) | geoscientificInformation | oceans |

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Other Information
Geophysical Survey and Mapping website information for this data set and link to downloading data. (Geophysical Survey and Mapping website information for this data set)

url : https://www.marine.csiro.au/data/gsm/gsm_extract.cfm?survey=LI2019_V01&instrument=EM2040c

Identifiers
  • global : 5eb00030-a97d-4567-a681-76c2d635af4c