Abstract:
Acoustic backscatter data were collected on board the RRS Sir David Attenborough during polar science trials 2023 (cruise SD025) on 25/02/2023 in Admiralty Bay, King George Island, Antarctica.
Data were collected using a Simrad EK80 echosounder at 18, 38, 70, 120, 200 and 333 kHz. The EK80 was calibrated on 10/03/2023 in the Weddell Sea.
This work was supported by NERC core funding to BAS.
Keywords:
EK80, King George Island, echosounder
Fielding, S. (2024). Raw acoustic data collected by an EK80 echosounder at King George Island on board the RRS Sir David Attenborough cruise SD025 (25 February 2023) (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/e7c3f05f-7677-408c-b98d-d35bd2171550
| Access Constraints: | None. |
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| Use Constraints: | This data is governed by the NERC data policy and supplied under Open Government Licence v.3 http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. |
| Creation Date: | 2024-07-03 |
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| Dataset Progress: | Complete |
| Dataset Language: | English |
| ISO Topic Categories: |
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| Parameters: |
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| Personnel: | |
| Name | UK PDC |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Dr Sophie Fielding |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Parent Dataset: | N/A |
| Reference: | Workman, E., Yang, M., Bell, T., Dong, Y., Jones, A., Fisher, R., France, J., Linse, K. (in review 2024). Methane Flux Measurements over Polar Oceans Indicate Emissions from Seabed to Atmosphere. J. Geophys. Res. Atmos. | |
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| Quality: | Raw data (time, gps and acoustic) are not quality checked. The instrument was calibrated on 10/03/2023 in the Weddell Sea. | |
| Lineage: | The dataset comprises Simrad EK80 raw format data files that have not undergone any processing or quality checking. Each data file contains approximately 2 minutes of data and is approximately 518 MB in size. Each data file contains raw ping data with associated GPS fixes and date/time. In order to process the data, 3 files in the TOML syntax language are supplied: - transect file (defines the start and end times for a given transect, list the raw and environmental files making up the transect, and references to associated metadata and calibration files) - water column active acoustic metadata file (compliant with ICES. 2016, a metadata convention for processed acoustic data from active acoustic systems, SISP 4 TG-AcMeta Version 1.10, ICES WGFAST Topic Group, TG-AcMeta. 47 pp.) - calibration file (calibration data and metadata ((compliant with ICES. 2016, a metadata convention for processed acoustic data from active acoustic systems, SISP 4 TG-AcMeta Version 1.10, ICES WGFAST Topic Group, TG-AcMeta. 47 pp.) |
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| Temporal Coverage: | |
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| Start Date | 2023-02-25 |
| End Date | 2023-02-25 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | -62.5 |
| Northernmost | -62.0609 |
| Longitude | |
| Westernmost | -58.4384 |
| Easternmost | -58.2 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | N/A |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Location: | |
| Location | Southern Ocean |
| Detailed Location | King George Island, Admiralty Bay |
| Data Collection: | Data were collected using a Simrad EK80 echosounder at 18, 38, 70, 120, 200 and 333 kHz. |
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| Data Storage: | The dataset consists of raw Simrad EK80 echosounder data and 3 toml files with the total volume about 325.5 GB. |
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