RRS Discovery Cruise DY113, 3 February – 13 March 2020. Repeat hydrographic measurements on GO-SHIP lines SR1b and A23
Cruise DY113 comprised occupations of two repeat hydrographic sections, SR1b across Drake Passage from Burdwood Bank to Elephant Island, and A23 from the northern Weddell Sea across the Scotia Sea to South Georgia. Ocean physical measurements are made on these two sections annually funded by NERC as...
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National Oceanography Centre
2020
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Online Access: | http://nora.nerc.ac.uk/id/eprint/527572/ https://nora.nerc.ac.uk/id/eprint/527572/1/cruise_report_dy113%20%281%29.pdf |
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ftnerc:oai:nora.nerc.ac.uk:527572 2023-05-15T13:41:45+02:00 RRS Discovery Cruise DY113, 3 February – 13 March 2020. Repeat hydrographic measurements on GO-SHIP lines SR1b and A23 Firing, Yvonne 2020-04-27 text http://nora.nerc.ac.uk/id/eprint/527572/ https://nora.nerc.ac.uk/id/eprint/527572/1/cruise_report_dy113%20%281%29.pdf en eng National Oceanography Centre https://nora.nerc.ac.uk/id/eprint/527572/1/cruise_report_dy113%20%281%29.pdf Firing, Yvonne orcid:0000-0002-3640-3974 . 2020 RRS Discovery Cruise DY113, 3 February – 13 March 2020. Repeat hydrographic measurements on GO-SHIP lines SR1b and A23. Southampton, National Oceanography Centre, 116pp. (National Oceanography Centre Cruise Report, 67) Publication - Report NonPeerReviewed 2020 ftnerc 2023-02-04T19:50:35Z Cruise DY113 comprised occupations of two repeat hydrographic sections, SR1b across Drake Passage from Burdwood Bank to Elephant Island, and A23 from the northern Weddell Sea across the Scotia Sea to South Georgia. Ocean physical measurements are made on these two sections annually funded by NERC as National Capability, currently through the ORCHESTRA (Ocean Regulation of Climate by Heat and Carbon Sequestration and Transports) programme, in order to monitor and understand variability of Antarctic Circumpolar Current transports and Antarctic Bottom Water properties and volumes. In addition to the 62 CTD/LADCP casts on SR1b and A23, a CTD survey was made over 17 sites in Cumberland Bay, South Georgia, and a section along the North Scotia Ridge also occupied on cruise JR299 was revisited, bringing the total to 104 CTD/LADCP casts including one test cast and one other repeat. Water column samples were collected for calibration of CTD salinity and dissolved oxygen (most stations) as well as for measurements of oxygen isotopes (SR1b, A23, Cumberland Bay), nutrient (N and Si) isotopes (SR1b), nutrient (NO2+NO3, NO3, Si, P; SR1b, A23) concentrations, microplastics (SR1b, A23, Cumberland Bay), and environmental DNA (SR1b). Standard underway measurements including underway surface ocean and meteorological data and upper ocean vessel-mounted current measurements were collected throughout, while multibeam swath bathymetry data was recorded on the transit between SR1b and A23 (south of the South Orkney Islands), in Cumberland Bay, and on previously-unsurveyed parts of the North Scotia Ridge transect and between there and the Falkland Islands. Four standard Argo autonomous profiling floats were also deployed, two on SR1b and two on A23. Report Antarc* Antarctic Drake Passage Elephant Island Scotia Sea South Orkney Islands Weddell Sea Natural Environment Research Council: NERC Open Research Archive Antarctic Weddell Sea Drake Passage Scotia Sea Weddell South Orkney Islands ENVELOPE(-45.500,-45.500,-60.583,-60.583) Elephant Island ENVELOPE(-55.184,-55.184,-61.085,-61.085) Burdwood Bank ENVELOPE(-59.000,-59.000,-54.250,-54.250) North Scotia Ridge ENVELOPE(-51.431,-51.431,-53.581,-53.581) Cumberland Bay ENVELOPE(69.052,69.052,-48.781,-48.781) |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
Cruise DY113 comprised occupations of two repeat hydrographic sections, SR1b across Drake Passage from Burdwood Bank to Elephant Island, and A23 from the northern Weddell Sea across the Scotia Sea to South Georgia. Ocean physical measurements are made on these two sections annually funded by NERC as National Capability, currently through the ORCHESTRA (Ocean Regulation of Climate by Heat and Carbon Sequestration and Transports) programme, in order to monitor and understand variability of Antarctic Circumpolar Current transports and Antarctic Bottom Water properties and volumes. In addition to the 62 CTD/LADCP casts on SR1b and A23, a CTD survey was made over 17 sites in Cumberland Bay, South Georgia, and a section along the North Scotia Ridge also occupied on cruise JR299 was revisited, bringing the total to 104 CTD/LADCP casts including one test cast and one other repeat. Water column samples were collected for calibration of CTD salinity and dissolved oxygen (most stations) as well as for measurements of oxygen isotopes (SR1b, A23, Cumberland Bay), nutrient (N and Si) isotopes (SR1b), nutrient (NO2+NO3, NO3, Si, P; SR1b, A23) concentrations, microplastics (SR1b, A23, Cumberland Bay), and environmental DNA (SR1b). Standard underway measurements including underway surface ocean and meteorological data and upper ocean vessel-mounted current measurements were collected throughout, while multibeam swath bathymetry data was recorded on the transit between SR1b and A23 (south of the South Orkney Islands), in Cumberland Bay, and on previously-unsurveyed parts of the North Scotia Ridge transect and between there and the Falkland Islands. Four standard Argo autonomous profiling floats were also deployed, two on SR1b and two on A23. |
format |
Report |
author |
Firing, Yvonne |
spellingShingle |
Firing, Yvonne RRS Discovery Cruise DY113, 3 February – 13 March 2020. Repeat hydrographic measurements on GO-SHIP lines SR1b and A23 |
author_facet |
Firing, Yvonne |
author_sort |
Firing, Yvonne |
title |
RRS Discovery Cruise DY113, 3 February – 13 March 2020. Repeat hydrographic measurements on GO-SHIP lines SR1b and A23 |
title_short |
RRS Discovery Cruise DY113, 3 February – 13 March 2020. Repeat hydrographic measurements on GO-SHIP lines SR1b and A23 |
title_full |
RRS Discovery Cruise DY113, 3 February – 13 March 2020. Repeat hydrographic measurements on GO-SHIP lines SR1b and A23 |
title_fullStr |
RRS Discovery Cruise DY113, 3 February – 13 March 2020. Repeat hydrographic measurements on GO-SHIP lines SR1b and A23 |
title_full_unstemmed |
RRS Discovery Cruise DY113, 3 February – 13 March 2020. Repeat hydrographic measurements on GO-SHIP lines SR1b and A23 |
title_sort |
rrs discovery cruise dy113, 3 february – 13 march 2020. repeat hydrographic measurements on go-ship lines sr1b and a23 |
publisher |
National Oceanography Centre |
publishDate |
2020 |
url |
http://nora.nerc.ac.uk/id/eprint/527572/ https://nora.nerc.ac.uk/id/eprint/527572/1/cruise_report_dy113%20%281%29.pdf |
long_lat |
ENVELOPE(-45.500,-45.500,-60.583,-60.583) ENVELOPE(-55.184,-55.184,-61.085,-61.085) ENVELOPE(-59.000,-59.000,-54.250,-54.250) ENVELOPE(-51.431,-51.431,-53.581,-53.581) ENVELOPE(69.052,69.052,-48.781,-48.781) |
geographic |
Antarctic Weddell Sea Drake Passage Scotia Sea Weddell South Orkney Islands Elephant Island Burdwood Bank North Scotia Ridge Cumberland Bay |
geographic_facet |
Antarctic Weddell Sea Drake Passage Scotia Sea Weddell South Orkney Islands Elephant Island Burdwood Bank North Scotia Ridge Cumberland Bay |
genre |
Antarc* Antarctic Drake Passage Elephant Island Scotia Sea South Orkney Islands Weddell Sea |
genre_facet |
Antarc* Antarctic Drake Passage Elephant Island Scotia Sea South Orkney Islands Weddell Sea |
op_relation |
https://nora.nerc.ac.uk/id/eprint/527572/1/cruise_report_dy113%20%281%29.pdf Firing, Yvonne orcid:0000-0002-3640-3974 . 2020 RRS Discovery Cruise DY113, 3 February – 13 March 2020. Repeat hydrographic measurements on GO-SHIP lines SR1b and A23. Southampton, National Oceanography Centre, 116pp. (National Oceanography Centre Cruise Report, 67) |
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1766156818422169600 |