Abstract:
Acoustic backscatter data were collected on board the RRS James Clark Ross (cruise JR200) as part of the Discovery 2010 programme. Data were collected using a Simrad EK60 echo sounder. This cruise ran two transects (Stanley to Signy and Signy to South Georgia) across the Scotia Sea in the austral autumn (March - April) of 2009. Within these transects, there were a series of stations at which dedicated acoustic transects were run, although the EK60 was run continuously throughout the cruise.
JR200 was the third of three cruises which comprise the field studies of the Discovery 2010 programme. The programme was designed to analyse interactions in the Southern Ocean ecosystem. The raw data files (Simrad .raw format) are held by the Polar Data Centre (PDC) at the British Antarctic Survey (BAS).
*******PLEASE BE ADVISED TO USE PROCESSED DATA*******
The JR200 EK60 processed data is now available at https://doi.org/10.5285/7b86ed5f-0520-4dec-9d1e-f76be05b98c9.
Keywords:
Scotia Sea, acoustic backscatter, echo-sounding
| Use Constraints: | NERC-funded data supplied under OGL v.3: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/ |
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| Creation Date: | 2015-04-24 |
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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 Rebecca Korb |
| Role(s) | Technical Contact |
| Organisation | British Antarctic Survey |
| Name | UK PDC |
| Role(s) | Metadata Author |
| Organisation | British Antarctic Survey |
| Name | Dr Sophie Fielding |
| Role(s) | Technical Contact, Investigator |
| Organisation | British Antarctic Survey |
| Name | Dr Peter Enderlein |
| Role(s) | Technical Contact |
| Organisation | British Antarctic Survey |
| Name | Dr Geraint Tarling |
| Role(s) | Technical Contact |
| Organisation | British Antarctic Survey |
| Name | Ms Jenny Thomas |
| Role(s) | Technical Contact |
| Organisation | British Antarctic Survey |
| Parent Dataset: | N/A |
| Reference: | Atkinson, A., Schmidt, K., Fielding, S., Kawaguchi, S., Geissler, P., 2012. Variable food absorption by Antarctic krill: Relationships between diet, egestion rate and the composition and sinking rates of their fecal pellets. Deep Sea Research II, 59-60. 147-158. 10.1016/j.dsr2.2011.06.008 Collins, M.A., Stowasser, G., Fielding, S., Shreeve, R., Xavier, J.C., Venables, H., Enderlein, P., Cherel, Y., Van de Putte, A., 2012 Latitudinal and bathymetric patterns in the distribution and abundance of mesopelagic fish in the Scotia Sea. Deep Sea Research II, 59-60. 189-198. 10.1016/j.dsr2.2011.07.003 Schmidt K., Atkinson A., Venables, H.J., Pond, D.W., 2012. Early spanning of Antarctic krill in the Scotia Sea is fuelled by "superfluous" feeding in non-ice associated phytoplankton blooms. Deep-Sea Res II 59-60. 159-172. doi: 10.1016/j.dsr2.2011.05.002 Tarling G.A., Ward P., Atkinson A., Collins M.A., Murphy E.J. 2012b DISCOVERY 2010: Spatial and temporal variability in a dynamic polar ecosystem. Deep-Sea Research Part II-Topical Studies in Oceanography 59, 1-13. doi:10.1016/j.dsr2.2011.10.001 Ward, P., Atkinson, A., Venables, H., Tarling, G., Whitehouse, M., Fielding, S., Collins, M.A., Korb, R., Black, A., Stowasser, G., Schmidt, K., Thorpe, S., Enderlein, P., 2012 Food web structure and bioregions in the Scotia Sea: A seasonal synthesis. Deep Sea Research II, 59-60. 253-266. 10.1016/j.dsr2.2011.08.005 |
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| Lineage: | The dataset comprises Simrad raw format files that have not undergone any processing or quality checking. The EK60 was calibrated after data collection. | |
| Project: |
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| Temporal Coverage: | |
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| Start Date | 2009-03-12 |
| End Date | 2009-04-18 |
| Spatial Coverage: | |
| Latitude | |
| Southernmost | -60.6962 |
| Northernmost | -57.8282 |
| Longitude | |
| Westernmost | -49.7818 |
| Easternmost | -33.3889 |
| Altitude | |
| Min Altitude | N/A |
| Max Altitude | N/A |
| Depth | |
| Min Depth | N/A |
| Max Depth | N/A |
| Location: | |
| Location | Southern Ocean |
| Detailed Location | Scotia Sea |
| Sensor(s): |
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| Data Collection: | Data collected using a Simrad EK60 echo sounder. |
| Distribution: | |
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| Distribution Media | Online Internet (HTTP) |
| Distribution Size | 98 GB |
| Distribution Format | N/A |
| Fees | N/A |