Abstract:
Water column acoustic data collected in the Scotia Sea (from 2014-11-17 to 2014-12-17) during cruise JR304.
Multi-frequency (38,120 and 200 kHz) acoustic data were collected using a Simrad EK60 echo sounder. The dataset comprises of calibrated and processed 38 kHz volume backscattering strength (Sv, dB re 1m-1). Data processing was undertaken using Echoview and Matlab. Processed netCDF data files are made available as part of the NERC Southern Ocean Network of Acoustics (SONA) and the EU MESOPP project.
Keywords:
acoustic scattering, biomass, echo sounder ek60, micronekton
Fielding, S., & Ariza, A. (2017). Water column acoustic data collected from 2014-11-17 to 2014-12-17 during cruise JR304 in the Scotia Sea (Version 1) [Data set]. Polar Data Centre; British Antarctic Survey, Natural Environment Research Council; Cambridge, CB3 0ET, UK.. https://doi.org/10.5285/94440e4a-372a-4dd8-9a1f-e38505ddb2ab
| Use Constraints: | Data released under Open Government Licence V3.0: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ |
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| Creation Date: | 2017-11-08 |
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| Dataset Progress: | Complete |
| Dataset Language: | English |
| ISO Topic Categories: |
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| Parameters: |
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| Personnel: | |
| Name | Dr Petra ten Hoopen |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Dr Alejandro Ariza |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Name | Dr Sophie Fielding |
| Role(s) | Investigator |
| Organisation | British Antarctic Survey |
| Parent Dataset: | N/A |
| Quality: | Raw data (time, gps and acoustic) are not quality checked. A measure of quality control is given by the proportion of data retained after a sequence of filters within the processing chain. The sequence is: 1) manual removal; 2) impulse noise filter; 3) attenuated signal filter; 4) signal to noise ratio (https://sona.aq/data/data-overview/). | |
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| Lineage: | Data were collected from a hull-mounted multi-frequency (38, 120 and 200 kHz) Simrad EK60 echosounder, in Simrad .raw format during cruise JR304 on the RRS James Clark Ross (https://www.bodc.ac.uk/data/information_and_inventories/cruise_inventory/report/jr304). Data were processed at the British Antarctic Survey, detailed in https://sona.aq/data/data-overview/. Acoustic calibration constants were obtained during cruise JR304, detailed in https://www.bodc.ac.uk/data/information_and_inventories/cruise_inventory/report/jr304, and applied to the acoustic data in post processing. Post-processing was undertaken using Echoview and Matlab, using BAS-SONA processing suite, a modified version of the CSIRO-BASOOP processing suite. | |
| Temporal Coverage: | |
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| Start Date | 2014-11-17 |
| End Date | 2014-12-17 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | -60.7692 |
| Northernmost | -51.6585 |
| Longitude | |
| Westernmost | -58.4675 |
| Easternmost | -36.5991 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | N/A |
| Depth | |
| Min Depth | 10 |
| Max Depth | 1000 |
| Location: | |
| Location | Southern Ocean |
| Detailed Location | Scotia Sea |
| Sensor(s): |
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| Data Collection: | Simrad EK60 echo sounder (38, 120 and 200 kHz) |