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BODC Cruise Metadata Report for RRS Discovery cruise DY158

Introduction

This report collates information from the BODC cruise inventory and oceanographic databases. It presents

Cruise Inventory Information

Long name RRS Discovery cruise DY158
Short name DY158
Objectives and Narrative Cruise DY158 is a multidisciplinary effort involving both biological and physical oceanography. The biological component is a continuation of the Polar Ocean Ecosystem Time Series Western Core Box/Scotia sea Open-Ocean Biological laboratoriES (POETS-WCB/SCOOBIES). The main deliverable of the POETS-WCB is to provide a consistent unique time series of mesoscale distribution and abundance of Antarctic krill and an understanding of their physical environment within the region of South Georgia, South Atlantic (1996-current). These data are required to understand the long-term variability in krill biomass at South Georgia and the influences from climatic variability, fishing pressure and predation. The SCOOBIES deliverable focused on studying ocean acidification and carbon flux. The physical oceanography components are part of the Polar Oceans group?s Long-Term Monitoring and Survey activities, currently also forming part of the Biogeochemical processes and ecosystem function in changing polar systems and their global impacts (BIOPOLE) programme, and previously part of Ocean Regulation of Climate by Heat and Carbon Sequestration and Transports (ORCHESTRA) in 2016-2022. Funding for M2, M3, and some instrumentation in Orkney Passage has been provided through NOAA's Climate Program Office's Ocean Observing and Monitoring Division. The main aim of the physical oceanography component is to continue to measure and improve the understanding of Southern Ocean circulation, with specific focus on the mechanisms that transfer heat and carbon across the sea surface and into the ocean. This in turn will support improving climate predictions and simulations.

Polar Ocean Ecosystem Time Series ? Western Core Box/ SCOOBIES
Western Core Box ? WCB & Eastern Core Box ? ECB. This part of the cruise consisted of the following:
1. Acoustic survey during daylight hours using multi-frequency multi-frequency (18, 38, 70, 120, 200 & 333 kHz) Simrad EK80 echosounder. Two transects to be run each day during a four-day period.
2. Deployment of the CTD at minimum of two stations per night during survey.
3. Continuous operation of underway data logging system (bathymetry, location, sea surface temperature, sea currents, etc.).
4. Net sampling (RMT8 and Bongo) at night-time stations plus target fishing during both night and day to ground-truth acoustic data.
5. Acoustic calibration using standard sphere techniques was undertaken in Rosita Bay, a harbour on the North coast of South Georgia.
6. Recovery of WCB & ECB mooring.

SCotia sea Open-Ocean BIological laboratoriES - SCOOBIES
SCOOBIES comprises a mooring along the South Georgia shelf and the open ocean region of the Scotia Sea, as part of monitoring ocean parameters with particular attention to ocean acidification, as well as for measuring the flux of carbon to deep ocean layers. This component of the cruise included:
Mooring recovery, refurbishment and redeployment:
1. Recovery of a deep-water mooring NW of South Georgia. Download data, refurbish and replace batteries.
2. Net sampling (RMT8, Bongo, and Floating Sediment Trap*) over 24-hour periods at mooring stations.
Polar Front survey:
1. Acoustic survey during daylight hours using multi-frequency (18, 38, 70, 120, 200 & 333 kHz) Simrad EK80 echosounder.
2. Deployment of the CTD at one station per 24-hour period during survey.
3. Continuous operation of underway data logging system (bathymetry, location, sea surface temperature, sea currents, etc.).
4. Net sampling RMT8 and Bongo at night-time stations.
*Unsuccessful recoveries of floating sediment trap deployments (2)

Additional biological activities:
1. Deploying 2-3 Bongos (oblique/target hauls) concurrent with CTD casts on some stations on the A23 section and in Orkney Passage.
2. Deploying 1 RMT8 net as part of target fishing near the South Orkney Islands.

The Polar Oceans components of t
Ship RRS Discovery
Departure Port Montevideo, Uruguay
Departure Date 2022-12-22
Arrival Port Mare Harbour, Falkland Islands (Malvinas)
Arrival Date 2023-01-29
Principal Scientist(s) Ryan A Saunders (British Antarctic Survey)
Responsible Organisation British Antarctic Survey
Associated Project(s)
IHB Sea Areas Visited Southern Ocean
Marsden Squares Visited 482/483/484/485/518/519/520/521
Work Area Description South Georgia
Unable to lookup cruise bounds at this time
Work Area Bounding Polygon
Southern Limit unknown
Northern Limit unknown
Western Limit unknown
Eastern Limit unknown

Cruise Inventory Datasets

Physical oceanography  
CTD stations Quantity: number of deployments = 56
Description: Conductivity-temperature-depth casts recording temperature, conductivity, dissolved oxygen, pressure, chlorophyll a fluorescence, altitude above seabed, backscatter, optical beam transmission. Water samples collected on some casts for analysis of oxygen isotopes (d18O), salinity, methane, microplastics composition, dissolved inorganic nutrients, silicon isotopes (dSi), phytoplankton composition (Lugol?s), particulate biogenic silica, particulate organic carbon and nitrogen and particulate organic matter (POM).  
Current profiler (eg ADCP) Quantity: number of deployments = 52
Description: Lowered Acoustic Doppler Current Profiler (LADCP) recording current velocities, signal return and error in the velocity measured; 600kHz (upward) and 300kHz (downward), free-pinging with no synchronisation between instruments.  
Current profiler (eg ADCP) Quantity: activity duration in days = 36
Description: Vessel-Mounted Acoustic Doppler Current Profiler measurements (VMADCP) 75 kHz.  
Other physical oceanographic measurements Quantity: number of deployments = 2
Description: Mammoth net collects data on temperature, depth when collecting meso-zooplankton; using 300µm mesh.  
Other physical oceanographic measurements Quantity: number of samples = 458
Description: Underway water samples for salinity, oxygen isotopes (d18O), particulate organic matter, dissolved inorganic nutrients, dissolved silicon isotopes, methane, phytoplankton composition (Lugols), microplastics composition, parasite spores, eDNA projects.  
Other physical oceanographic measurements Quantity: number of deployments = 56
Description: Conductivity-temperature-depth casts recording temperature, conductivity, dissolved oxygen, pressure, chlorophyll a fluorescence, altitude above seabed, backscatter, optical beam transmission. Water samples collected on some casts for analysis of oxygen isotopes (d18O), salinity, methane, microplastics composition, dissolved inorganic nutrients, silicon isotopes (dSi), phytoplankton composition (Lugol?s), particulate biogenic silica, particulate organic carbon and nitrogen and particulate organic matter (POM).  
Surface measurements underway (T,S) Quantity: activity duration in days = 39
Description: Routine underway measurements of position, heading, speed from GPS/gyro/log; temperature, salinity, chlorophyll a fluorescence, optical beam transmission from uncontaminated seawater supply and sensors under hull; air temperature, humidity, sea level pressure, wind speed and direction, solar radiation from sensors on mast; and bottom depths from EA640 single-beam echo sounder.  
Surface measurements underway (T,S) Quantity: number of samples = 458
Description: Underway water samples for salinity, oxygen isotopes (d18O), particulate organic matter, dissolved inorganic nutrients, dissolved silicon isotopes, methane, phytoplankton composition (Lugols), microplastics composition, parasite spores, eDNA projects.  
Transparency (eg transmissometer) Quantity: number of samples = 458
Description: Underway water samples for salinity, oxygen isotopes (d18O), particulate organic matter, dissolved inorganic nutrients, dissolved silicon isotopes, methane, phytoplankton composition (Lugols), microplastics composition, parasite spores, eDNA projects.  
Transparency (eg transmissometer) Quantity: activity duration in days = 39
Description: Routine underway measurements of position, heading, speed from GPS/gyro/log; temperature, salinity, chlorophyll a fluorescence, optical beam transmission from uncontaminated seawater supply and sensors under hull; air temperature, humidity, sea level pressure, wind speed and direction, solar radiation from sensors on mast; and bottom depths from EA640 single-beam echo sounder.  
Transparency (eg transmissometer) Quantity: number of deployments = 56
Description: Conductivity-temperature-depth casts recording temperature, conductivity, dissolved oxygen, pressure, chlorophyll a fluorescence, altitude above seabed, backscatter, optical beam transmission. Water samples collected on some casts for analysis of oxygen isotopes (d18O), salinity, methane, microplastics composition, dissolved inorganic nutrients, silicon isotopes (dSi), phytoplankton composition (Lugol?s), particulate biogenic silica, particulate organic carbon and nitrogen and particulate organic matter (POM).  
Water bottle stations Quantity: number of deployments = 56
Description: Conductivity-temperature-depth casts recording temperature, conductivity, dissolved oxygen, pressure, chlorophyll a fluorescence, altitude above seabed, backscatter, optical beam transmission. Water samples collected on some casts for analysis of oxygen isotopes (d18O), salinity, methane, microplastics composition, dissolved inorganic nutrients, silicon isotopes (dSi), phytoplankton composition (Lugol?s), particulate biogenic silica, particulate organic carbon and nitrogen and particulate organic matter (POM).  
Chemical oceanography  
Isotopes Quantity: number of samples = 458
Description: Underway water samples for salinity, oxygen isotopes (d18O), particulate organic matter, dissolved inorganic nutrients, dissolved silicon isotopes, methane, phytoplankton composition (Lugols), microplastics composition, parasite spores, eDNA projects.  
Isotopes Quantity: number of deployments = 56
Description: Conductivity-temperature-depth casts recording temperature, conductivity, dissolved oxygen, pressure, chlorophyll a fluorescence, altitude above seabed, backscatter, optical beam transmission. Water samples collected on some casts for analysis of oxygen isotopes (d18O), salinity, methane, microplastics composition, dissolved inorganic nutrients, silicon isotopes (dSi), phytoplankton composition (Lugol?s), particulate biogenic silica, particulate organic carbon and nitrogen and particulate organic matter (POM).  
Isotopes Quantity: number of deployments = 14
Description: Rectangular Midwater Trawl 8 (RMT8) opening and closing nets (8 sq m), mesh size 5mm. Two nets each event. Targeted hauls for Antarctic krill and oblique trawls for zooplankton samples. Macrozooplankton sampling, incubation experiments (respiration, physiology and microplastics, parasite impact on physiology), length frequency and stable isotope analysis.  
Nitrate Quantity: number of samples = 458
Description: Underway water samples for salinity, oxygen isotopes (d18O), particulate organic matter, dissolved inorganic nutrients, dissolved silicon isotopes, methane, phytoplankton composition (Lugols), microplastics composition, parasite spores, eDNA projects.  
Nitrate Quantity: number of deployments = 56
Description: Conductivity-temperature-depth casts recording temperature, conductivity, dissolved oxygen, pressure, chlorophyll a fluorescence, altitude above seabed, backscatter, optical beam transmission. Water samples collected on some casts for analysis of oxygen isotopes (d18O), salinity, methane, microplastics composition, dissolved inorganic nutrients, silicon isotopes (dSi), phytoplankton composition (Lugol?s), particulate biogenic silica, particulate organic carbon and nitrogen and particulate organic matter (POM).  
Nitrite Quantity: number of samples = 458
Description: Underway water samples for salinity, oxygen isotopes (d18O), particulate organic matter, dissolved inorganic nutrients, dissolved silicon isotopes, methane, phytoplankton composition (Lugols), microplastics composition, parasite spores, eDNA projects.  
Other chemical oceanographic measurements Quantity: number of deployments = 56
Description: Conductivity-temperature-depth casts recording temperature, conductivity, dissolved oxygen, pressure, chlorophyll a fluorescence, altitude above seabed, backscatter, optical beam transmission. Water samples collected on some casts for analysis of oxygen isotopes (d18O), salinity, methane, microplastics composition, dissolved inorganic nutrients, silicon isotopes (dSi), phytoplankton composition (Lugol?s), particulate biogenic silica, particulate organic carbon and nitrogen and particulate organic matter (POM).  
Other dissolved gases Quantity: number of deployments = 56
Description: Conductivity-temperature-depth casts recording temperature, conductivity, dissolved oxygen, pressure, chlorophyll a fluorescence, altitude above seabed, backscatter, optical beam transmission. Water samples collected on some casts for analysis of oxygen isotopes (d18O), salinity, methane, microplastics composition, dissolved inorganic nutrients, silicon isotopes (dSi), phytoplankton composition (Lugol?s), particulate biogenic silica, particulate organic carbon and nitrogen and particulate organic matter (POM).  
Other dissolved gases Quantity: number of samples = 458
Description: Underway water samples for salinity, oxygen isotopes (d18O), particulate organic matter, dissolved inorganic nutrients, dissolved silicon isotopes, methane, phytoplankton composition (Lugols), microplastics composition, parasite spores, eDNA projects.  
Oxygen Quantity: number of deployments = 56
Description: Conductivity-temperature-depth casts recording temperature, conductivity, dissolved oxygen, pressure, chlorophyll a fluorescence, altitude above seabed, backscatter, optical beam transmission. Water samples collected on some casts for analysis of oxygen isotopes (d18O), salinity, methane, microplastics composition, dissolved inorganic nutrients, silicon isotopes (dSi), phytoplankton composition (Lugol?s), particulate biogenic silica, particulate organic carbon and nitrogen and particulate organic matter (POM).  
Phosphate Quantity: number of deployments = 56
Description: Conductivity-temperature-depth casts recording temperature, conductivity, dissolved oxygen, pressure, chlorophyll a fluorescence, altitude above seabed, backscatter, optical beam transmission. Water samples collected on some casts for analysis of oxygen isotopes (d18O), salinity, methane, microplastics composition, dissolved inorganic nutrients, silicon isotopes (dSi), phytoplankton composition (Lugol?s), particulate biogenic silica, particulate organic carbon and nitrogen and particulate organic matter (POM).  
Silicate Quantity: number of samples = 458
Description: Underway water samples for salinity, oxygen isotopes (d18O), particulate organic matter, dissolved inorganic nutrients, dissolved silicon isotopes, methane, phytoplankton composition (Lugols), microplastics composition, parasite spores, eDNA projects.  
Silicate Quantity: number of deployments = 56
Description: Conductivity-temperature-depth casts recording temperature, conductivity, dissolved oxygen, pressure, chlorophyll a fluorescence, altitude above seabed, backscatter, optical beam transmission. Water samples collected on some casts for analysis of oxygen isotopes (d18O), salinity, methane, microplastics composition, dissolved inorganic nutrients, silicon isotopes (dSi), phytoplankton composition (Lugol?s), particulate biogenic silica, particulate organic carbon and nitrogen and particulate organic matter (POM).  
Contamination  
Contaminants in organisms Quantity: number of deployments = 41
Description: Bongo net, mesh sizes 100µm?200µm. Sampled Antarctic krill, copepods, meso-zooplankton for incubation experiments.  
Contaminants in organisms Quantity: number of deployments = 14
Description: Rectangular Midwater Trawl 8 (RMT8) opening and closing nets (8 sq m), mesh size 5mm. Two nets each event. Targeted hauls for Antarctic krill and oblique trawls for zooplankton samples. Macrozooplankton sampling, incubation experiments (respiration, physiology and microplastics, parasite impact on physiology), length frequency and stable isotope analysis.  
Other contaminant measurements Quantity: number of samples = 458
Description: Underway water samples for salinity, oxygen isotopes (d18O), particulate organic matter, dissolved inorganic nutrients, dissolved silicon isotopes, methane, phytoplankton composition (Lugols), microplastics composition, parasite spores, eDNA projects.  
Suspended matter Quantity: number of samples = 458
Description: Underway water samples for salinity, oxygen isotopes (d18O), particulate organic matter, dissolved inorganic nutrients, dissolved silicon isotopes, methane, phytoplankton composition (Lugols), microplastics composition, parasite spores, eDNA projects.  
Suspended matter Quantity: number of deployments = 56
Description: Conductivity-temperature-depth casts recording temperature, conductivity, dissolved oxygen, pressure, chlorophyll a fluorescence, altitude above seabed, backscatter, optical beam transmission. Water samples collected on some casts for analysis of oxygen isotopes (d18O), salinity, methane, microplastics composition, dissolved inorganic nutrients, silicon isotopes (dSi), phytoplankton composition (Lugol?s), particulate biogenic silica, particulate organic carbon and nitrogen and particulate organic matter (POM).  
Biology and fisheries  
Acoustic reflection on marine organisms. Quantity: activity duration in days = 36
Description: EK80 operating at 18, 38, 70, 120, 200 and 333 kHz. Calibrated at Rosita Harbour, South Georgia.  
Biochemical measurements (eg lipids, amino acids) Quantity: number of samples = 458
Description: Underway water samples for salinity, oxygen isotopes (d18O), particulate organic matter, dissolved inorganic nutrients, dissolved silicon isotopes, methane, phytoplankton composition (Lugols), microplastics composition, parasite spores, eDNA projects.  
Crustaceans Quantity: number of deployments = 14
Description: Rectangular Midwater Trawl 8 (RMT8) opening and closing nets (8 sq m), mesh size 5mm. Two nets each event. Targeted hauls for Antarctic krill and oblique trawls for zooplankton samples. Macrozooplankton sampling, incubation experiments (respiration, physiology and microplastics, parasite impact on physiology), length frequency and stable isotope analysis.  
Crustaceans Quantity: number of deployments = 41
Description: Bongo net, mesh sizes 100µm?200µm. Sampled Antarctic krill, copepods, meso-zooplankton for incubation experiments.  
Dissolved organic matter (inc DOC) Quantity: number of deployments = 56
Description: Conductivity-temperature-depth casts recording temperature, conductivity, dissolved oxygen, pressure, chlorophyll a fluorescence, altitude above seabed, backscatter, optical beam transmission. Water samples collected on some casts for analysis of oxygen isotopes (d18O), salinity, methane, microplastics composition, dissolved inorganic nutrients, silicon isotopes (dSi), phytoplankton composition (Lugol?s), particulate biogenic silica, particulate organic carbon and nitrogen and particulate organic matter (POM).  
Eggs and larvae Quantity: number of deployments = 14
Description: Rectangular Midwater Trawl 8 (RMT8) opening and closing nets (8 sq m), mesh size 5mm. Two nets each event. Targeted hauls for Antarctic krill and oblique trawls for zooplankton samples. Macrozooplankton sampling, incubation experiments (respiration, physiology and microplastics, parasite impact on physiology), length frequency and stable isotope analysis.  
Nekton Quantity: number of deployments = 14
Description: Rectangular Midwater Trawl 8 (RMT8) opening and closing nets (8 sq m), mesh size 5mm. Two nets each event. Targeted hauls for Antarctic krill and oblique trawls for zooplankton samples. Macrozooplankton sampling, incubation experiments (respiration, physiology and microplastics, parasite impact on physiology), length frequency and stable isotope analysis.  
Other biological/fisheries measurement Quantity: number of deployments = 56
Description: Conductivity-temperature-depth casts recording temperature, conductivity, dissolved oxygen, pressure, chlorophyll a fluorescence, altitude above seabed, backscatter, optical beam transmission. Water samples collected on some casts for analysis of oxygen isotopes (d18O), salinity, methane, microplastics composition, dissolved inorganic nutrients, silicon isotopes (dSi), phytoplankton composition (Lugol?s), particulate biogenic silica, particulate organic carbon and nitrogen and particulate organic matter (POM).  
Particulate organic matter (inc POC, PON) Quantity: number of deployments = 56
Description: Conductivity-temperature-depth casts recording temperature, conductivity, dissolved oxygen, pressure, chlorophyll a fluorescence, altitude above seabed, backscatter, optical beam transmission. Water samples collected on some casts for analysis of oxygen isotopes (d18O), salinity, methane, microplastics composition, dissolved inorganic nutrients, silicon isotopes (dSi), phytoplankton composition (Lugol?s), particulate biogenic silica, particulate organic carbon and nitrogen and particulate organic matter (POM).  
Particulate organic matter (inc POC, PON) Quantity: number of samples = 458
Description: Underway water samples for salinity, oxygen isotopes (d18O), particulate organic matter, dissolved inorganic nutrients, dissolved silicon isotopes, methane, phytoplankton composition (Lugols), microplastics composition, parasite spores, eDNA projects.  
Pelagic fish Quantity: number of deployments = 14
Description: Rectangular Midwater Trawl 8 (RMT8) opening and closing nets (8 sq m), mesh size 5mm. Two nets each event. Targeted hauls for Antarctic krill and oblique trawls for zooplankton samples. Macrozooplankton sampling, incubation experiments (respiration, physiology and microplastics, parasite impact on physiology), length frequency and stable isotope analysis.  
Phytoplankton Quantity: number of samples = 458
Description: Underway water samples for salinity, oxygen isotopes (d18O), particulate organic matter, dissolved inorganic nutrients, dissolved silicon isotopes, methane, phytoplankton composition (Lugols), microplastics composition, parasite spores, eDNA projects.  
Phytoplankton Quantity: number of deployments = 41
Description: Bongo net, mesh sizes 100µm?200µm. Sampled Antarctic krill, copepods, meso-zooplankton for incubation experiments.  
Phytoplankton Quantity: number of deployments = 56
Description: Conductivity-temperature-depth casts recording temperature, conductivity, dissolved oxygen, pressure, chlorophyll a fluorescence, altitude above seabed, backscatter, optical beam transmission. Water samples collected on some casts for analysis of oxygen isotopes (d18O), salinity, methane, microplastics composition, dissolved inorganic nutrients, silicon isotopes (dSi), phytoplankton composition (Lugol?s), particulate biogenic silica, particulate organic carbon and nitrogen and particulate organic matter (POM).  
Phytoplankton pigs (eg chlorophyll, fluorescence) Quantity: number of deployments = 56
Description: Conductivity-temperature-depth casts recording temperature, conductivity, dissolved oxygen, pressure, chlorophyll a fluorescence, altitude above seabed, backscatter, optical beam transmission. Water samples collected on some casts for analysis of oxygen isotopes (d18O), salinity, methane, microplastics composition, dissolved inorganic nutrients, silicon isotopes (dSi), phytoplankton composition (Lugol?s), particulate biogenic silica, particulate organic carbon and nitrogen and particulate organic matter (POM).  
Phytoplankton pigs (eg chlorophyll, fluorescence) Quantity: activity duration in days = 39
Description: Routine underway measurements of position, heading, speed from GPS/gyro/log; temperature, salinity, chlorophyll a fluorescence, optical beam transmission from uncontaminated seawater supply and sensors under hull; air temperature, humidity, sea level pressure, wind speed and direction, solar radiation from sensors on mast; and bottom depths from EA640 single-beam echo sounder.  
Phytoplankton pigs (eg chlorophyll, fluorescence) Quantity: number of samples = 458
Description: Underway water samples for salinity, oxygen isotopes (d18O), particulate organic matter, dissolved inorganic nutrients, dissolved silicon isotopes, methane, phytoplankton composition (Lugols), microplastics composition, parasite spores, eDNA projects.  
Zooplankton Quantity: number of deployments = 14
Description: Rectangular Midwater Trawl 8 (RMT8) opening and closing nets (8 sq m), mesh size 5mm. Two nets each event. Targeted hauls for Antarctic krill and oblique trawls for zooplankton samples. Macrozooplankton sampling, incubation experiments (respiration, physiology and microplastics, parasite impact on physiology), length frequency and stable isotope analysis.  
Zooplankton Quantity: number of deployments = 2
Description: Mammoth net collects data on temperature, depth when collecting meso-zooplankton; using 300µm mesh.  
Zooplankton Quantity: number of deployments = 41
Description: Bongo net, mesh sizes 100µm?200µm. Sampled Antarctic krill, copepods, meso-zooplankton for incubation experiments.  
Meteorology  
Atmospheric chemistry Quantity: number of samples = 79
Description: Air sampling for greenhouse gases (methane) twice a day; once during daylight and once at night.  
Atmospheric chemistry Quantity: activity duration in days = 38
Description: Mast-fitted atmospheric loggers ? measuring greenhouse gases in atmosphere.  
Incident radiation Quantity: activity duration in days = 39
Description: Routine underway measurements of position, heading, speed from GPS/gyro/log; temperature, salinity, chlorophyll a fluorescence, optical beam transmission from uncontaminated seawater supply and sensors under hull; air temperature, humidity, sea level pressure, wind speed and direction, solar radiation from sensors on mast; and bottom depths from EA640 single-beam echo sounder.  
Occasional standard measurements Quantity: number of deployments = 2
Description: Mammoth net collects data on temperature, depth when collecting meso-zooplankton; using 300µm mesh.  
Occasional standard measurements Quantity: number of samples = 79
Description: Air sampling for greenhouse gases (methane) twice a day; once during daylight and once at night.  
Routine standard measurements Quantity: activity duration in days = 38
Description: Mast-fitted atmospheric loggers ? measuring greenhouse gases in atmosphere.  
Routine standard measurements Quantity: activity duration in days = 39
Description: Routine underway measurements of position, heading, speed from GPS/gyro/log; temperature, salinity, chlorophyll a fluorescence, optical beam transmission from uncontaminated seawater supply and sensors under hull; air temperature, humidity, sea level pressure, wind speed and direction, solar radiation from sensors on mast; and bottom depths from EA640 single-beam echo sounder.  
Geology and geophysics  
Multi-beam echosounding Quantity: activity duration in hours = 18
Description: EM710 multibeam echo sounder operated near Rosita Harbour (4 hours on 4/1/2023) and Stromness Bay (14 hours on 5-6/1/2023) to search for methane seeps. Water column data not logged, but bottom depths recorded.  
Single-beam echosounding Quantity: activity duration in days = 39
Description: Routine underway measurements of position, heading, speed from GPS/gyro/log; temperature, salinity, chlorophyll a fluorescence, optical beam transmission from uncontaminated seawater supply and sensors under hull; air temperature, humidity, sea level pressure, wind speed and direction, solar radiation from sensors on mast; and bottom depths from EA640 single-beam echo sounder.  

Cruise Inventory Mooring/Buoy Operations

Latitude Longitude Data type Description
54° 6' S 36° 15' W Acoustic reflection on marine organisms. Site: ECB; Deployed; 06/01/2023; Water depth: ~ 281 m. Instrumentation: SBE CTD, WBAT echosounder, ADCP (~200m), SonoVault acoustic listening (~250m)
53° 47' S 37° 23' W Acoustic reflection on marine organisms. Site: WCB; Deployed: 05/01/2023; Water depth: ~295 m. Instrumentation: SBE CTD, WBAT echosounder, ADCP (~200m), SonoVault acoustic listening (~250m), Floating Sediment Trap (~250m)
52° 53' S 40° 1' W Contaminants in organisms Site: OP3; Deployed: 22/01/2023; Water depth: 3180 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
60° 36' S 42° 0' W Contaminants in organisms Site: OP3; Recovered on: 23/01/2023; Water depth: 3481 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
52° 48' S 40° 6' W Contaminants in organisms Site: P3; Deployed: 28/12/2022; Water depth: 3801 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
52° 53' S 40° 1' W Contaminants in organisms Site: P3; Recovered: 29/12/2022; Water depth: 3817 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
40° 43' S 50° 40' W Contaminants in organisms Site: S. Atlantic ? en route to S. Ocean (test); Deployed: 24/12/2022; Water depth: 5462 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
40° 43' S 50° 40' W Contaminants in organisms Site: S. Atlantic ? en route to S. Ocean (test); Recovered: 24/12/2022; Water depth: 5461 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
62° 37' S 43° 14' W Current meters Site: M2; Deployed: 20/01/2023. Water depth: 3046 m Measurements: temperature, salinity, pressure and water velocity at a variety of depths (2540?3040 m).
62° 36' S 43° 14' W Current meters Site: M2; Recovered: 19/01/2023; Deployed: 13/01/2019 (JR18004); Water depth: 3052 m. Measurements: temperature, salinity, pressure and water velocity at a variety of depths (2540?3040 m).
60° 37' S 42° 5' W Current meters Site: OP1; Deployed: 20/01/2023; Water depth: 3650 m Measurements: temperature, salinity, pressure and water velocity at a variety of depths (1820?3630 m).
60° 37' S 42° 5' W Current meters Site: OP1; Recovered: 21/01/2023; Deployed: 10/02/2019 (JR18004); Water depth: 3645 m Measurements: temperature, salinity, pressure and water velocity at a variety of depths (1820?3630 m).
60° 38' S 42° 10' W Current meters Site: OP2; Deployed: 23/01/2023; Water depth: 3130 m. Measurements: temperature, salinity, pressure and water velocity at a variety of depths (1610?3120 m).
60° 38' S 42° 10' W Current meters Site: OP2; Recovered: 21/01/2023; Deployed: 28/01/2019 (JR18004); Water depth: 3102 m Measurements: temperature, salinity, pressure and water velocity at a variety of depths (1580?3090 m).
60° 39' S 42° 13' W Current meters Site: OP3; Deployed: 22/01/2023; Water depth: 1760 m. Measurements: temperature, salinity, pressure and water velocity at a variety of depths (1250?1750 m).
60° 39' S 42° 13' W Current meters Site: OP3; Recovered: 22/01/2023; Deployed: 10/02/2019 (JR18004); Water depth: 1750 m. Measurements: temperature, salinity, pressure and water velocity at a variety of depths (1240?1740 m).
60° 35' S 41° 49' W Current meters Site: OP4; Recovered: 21/01/2023; Deployed: 09/02/2019 (JR18004); Water depth: 2952 m. Measurements: temperature, salinity, pressure and water velocity at a variety of depths (1870?2940 m).
60° 36' S 41° 58' W Current meters Site: OP5; Deployed: 23/01/2023; Water depth: 3409 m. Measurements: temperature, salinity, pressure and water velocity at a variety of depths (3000?3390m).
60° 36' S 41° 58' W Current meters Site: OP5; Recovered: 22/01/2023; Deployed: 09/02/2019 (JR18004); Water depth: 3408 m. Measurements: temperature, salinity, pressure and water velocity at a variety of depths (3000?3390 m).
60° 34' S 41° 37' W Current meters Site: OP6; Recovered: 21/01/2023; Deployed: 09/02/2019 (JR18004); Water depth: 2312 m Measurements: temperature, salinity, pressure and water velocity at a variety of depths (1910?2300 m).
52° 51' S 40° 5' W Current meters Site: P3; Deployed: 29/12/2022; Water depth: ~3750 m. Instrumentation: SBE CTD (~175m), RDI ADCP (~200m), OPIC (~200m) Seaguard current meter with O2 sensor (~1000m) Floating Sediment Trap (~2000m)
52° 48' S 40° 7' W Current meters Site: P3; Recovered: 28/12/2022; Deployed: 12/02/2021 (JC211); Water depth: ~3760 m. Instrumentation SBE CTD (~200 m and ~1000 m), Sediment traps (~1000 m and ~2000 m), Seaguard current meters with O2 sensor (~1000 m and ~2000 m), SAMI pH meter (~200 m), SonoVault acoustic listening (~450 m)
54° 6' S 36° 15' W Current profiler (eg ADCP) Site: ECB; Deployed; 06/01/2023; Water depth: ~ 281 m. Instrumentation: SBE CTD, WBAT echosounder, ADCP (~200m), SonoVault acoustic listening (~250m)
52° 51' S 40° 5' W Current profiler (eg ADCP) Site: P3; Deployed: 29/12/2022; Water depth: ~3750 m. Instrumentation: SBE CTD (~175m), RDI ADCP (~200m), OPIC (~200m) Seaguard current meter with O2 sensor (~1000m) Floating Sediment Trap (~2000m)
52° 48' S 40° 7' W Current profiler (eg ADCP) Site: P3; Recovered: 28/12/2022; Deployed: 12/02/2021 (JC211); Water depth: ~3760 m. Instrumentation SBE CTD (~200 m and ~1000 m), Sediment traps (~1000 m and ~2000 m), Seaguard current meters with O2 sensor (~1000 m and ~2000 m), SAMI pH meter (~200 m), SonoVault acoustic listening (~450 m)
53° 47' S 37° 23' W Current profiler (eg ADCP) Site: WCB; Deployed: 05/01/2023; Water depth: ~295 m. Instrumentation: SBE CTD, WBAT echosounder, ADCP (~200m), SonoVault acoustic listening (~250m), Floating Sediment Trap (~250m)
63° 58' S 28° 52' W Neutrally buoyant floats Deployed TWR Apex Argo profiling float 9617, WMO ID 1902089, on 11/01/2023
61° 39' S 31° 6' W Neutrally buoyant floats Deployed TWR Apex Argo profiling float 9618, WMO ID 1902090, on 13/01/2023
58° 38' S 30° 49' W Neutrally buoyant floats Deployed TWR Apex Argo profiling float 9619, WMO ID 1902091, on 15/01/2023
54° 6' S 36° 15' W Other biological/fisheries measurement Site: ECB; Deployed; 06/01/2023; Water depth: ~ 281 m. Instrumentation: SBE CTD, WBAT echosounder, ADCP (~200m), SonoVault acoustic listening (~250m)
52° 51' S 40° 5' W Other biological/fisheries measurement Site: P3; Deployed: 29/12/2022; Water depth: ~3750 m. Instrumentation: SBE CTD (~175m), RDI ADCP (~200m), OPIC (~200m) Seaguard current meter with O2 sensor (~1000m) Floating Sediment Trap (~2000m)
52° 48' S 40° 7' W Other biological/fisheries measurement Site: P3; Recovered: 28/12/2022; Deployed: 12/02/2021 (JC211); Water depth: ~3760 m. Instrumentation SBE CTD (~200 m and ~1000 m), Sediment traps (~1000 m and ~2000 m), Seaguard current meters with O2 sensor (~1000 m and ~2000 m), SAMI pH meter (~200 m), SonoVault acoustic listening (~450 m)
53° 47' S 37° 23' W Other biological/fisheries measurement Site: WCB; Deployed: 05/01/2023; Water depth: ~295 m. Instrumentation: SBE CTD, WBAT echosounder, ADCP (~200m), SonoVault acoustic listening (~250m), Floating Sediment Trap (~250m)
52° 51' S 40° 5' W Other chemical oceanographic measurements Site: P3; Deployed: 29/12/2022; Water depth: ~3750 m. Instrumentation: SBE CTD (~175m), RDI ADCP (~200m), OPIC (~200m) Seaguard current meter with O2 sensor (~1000m) Floating Sediment Trap (~2000m)
52° 53' S 40° 1' W Other contaminant measurements Site: OP3; Deployed: 22/01/2023; Water depth: 3180 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
60° 36' S 42° 0' W Other contaminant measurements Site: OP3; Recovered on: 23/01/2023; Water depth: 3481 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
52° 48' S 40° 6' W Other contaminant measurements Site: P3; Deployed: 28/12/2022; Water depth: 3801 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
52° 53' S 40° 1' W Other contaminant measurements Site: P3; Recovered: 29/12/2022; Water depth: 3817 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
40° 43' S 50° 40' W Other contaminant measurements Site: S. Atlantic ? en route to S. Ocean (test); Deployed: 24/12/2022; Water depth: 5462 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
40° 43' S 50° 40' W Other contaminant measurements Site: S. Atlantic ? en route to S. Ocean (test); Recovered: 24/12/2022; Water depth: 5461 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
54° 6' S 36° 15' W Other physical oceanographic measurements Site: ECB; Deployed; 06/01/2023; Water depth: ~ 281 m. Instrumentation: SBE CTD, WBAT echosounder, ADCP (~200m), SonoVault acoustic listening (~250m)
62° 37' S 43° 14' W Other physical oceanographic measurements Site: M2; Deployed: 20/01/2023. Water depth: 3046 m Measurements: temperature, salinity, pressure and water velocity at a variety of depths (2540?3040 m).
62° 36' S 43° 14' W Other physical oceanographic measurements Site: M2; Recovered: 19/01/2023; Deployed: 13/01/2019 (JR18004); Water depth: 3052 m. Measurements: temperature, salinity, pressure and water velocity at a variety of depths (2540?3040 m).
60° 37' S 42° 5' W Other physical oceanographic measurements Site: OP1; Deployed: 20/01/2023; Water depth: 3650 m Measurements: temperature, salinity, pressure and water velocity at a variety of depths (1820?3630 m).
60° 37' S 42° 5' W Other physical oceanographic measurements Site: OP1; Recovered: 21/01/2023; Deployed: 10/02/2019 (JR18004); Water depth: 3645 m Measurements: temperature, salinity, pressure and water velocity at a variety of depths (1820?3630 m).
60° 38' S 42° 10' W Other physical oceanographic measurements Site: OP2; Deployed: 23/01/2023; Water depth: 3130 m. Measurements: temperature, salinity, pressure and water velocity at a variety of depths (1610?3120 m).
60° 38' S 42° 10' W Other physical oceanographic measurements Site: OP2; Recovered: 21/01/2023; Deployed: 28/01/2019 (JR18004); Water depth: 3102 m Measurements: temperature, salinity, pressure and water velocity at a variety of depths (1580?3090 m).
60° 39' S 42° 13' W Other physical oceanographic measurements Site: OP3; Deployed: 22/01/2023; Water depth: 1760 m. Measurements: temperature, salinity, pressure and water velocity at a variety of depths (1250?1750 m).
60° 39' S 42° 13' W Other physical oceanographic measurements Site: OP3; Recovered: 22/01/2023; Deployed: 10/02/2019 (JR18004); Water depth: 1750 m. Measurements: temperature, salinity, pressure and water velocity at a variety of depths (1240?1740 m).
60° 35' S 41° 49' W Other physical oceanographic measurements Site: OP4; Recovered: 21/01/2023; Deployed: 09/02/2019 (JR18004); Water depth: 2952 m. Measurements: temperature, salinity, pressure and water velocity at a variety of depths (1870?2940 m).
60° 36' S 41° 58' W Other physical oceanographic measurements Site: OP5; Deployed: 23/01/2023; Water depth: 3409 m. Measurements: temperature, salinity, pressure and water velocity at a variety of depths (3000?3390m).
60° 36' S 41° 58' W Other physical oceanographic measurements Site: OP5; Recovered: 22/01/2023; Deployed: 09/02/2019 (JR18004); Water depth: 3408 m. Measurements: temperature, salinity, pressure and water velocity at a variety of depths (3000?3390 m).
60° 34' S 41° 37' W Other physical oceanographic measurements Site: OP6; Recovered: 21/01/2023; Deployed: 09/02/2019 (JR18004); Water depth: 2312 m Measurements: temperature, salinity, pressure and water velocity at a variety of depths (1910?2300 m).
52° 51' S 40° 5' W Other physical oceanographic measurements Site: P3; Deployed: 29/12/2022; Water depth: ~3750 m. Instrumentation: SBE CTD (~175m), RDI ADCP (~200m), OPIC (~200m) Seaguard current meter with O2 sensor (~1000m) Floating Sediment Trap (~2000m)
52° 48' S 40° 7' W Other physical oceanographic measurements Site: P3; Recovered: 28/12/2022; Deployed: 12/02/2021 (JC211); Water depth: ~3760 m. Instrumentation SBE CTD (~200 m and ~1000 m), Sediment traps (~1000 m and ~2000 m), Seaguard current meters with O2 sensor (~1000 m and ~2000 m), SAMI pH meter (~200 m), SonoVault acoustic listening (~450 m)
53° 47' S 37° 23' W Other physical oceanographic measurements Site: WCB; Deployed: 05/01/2023; Water depth: ~295 m. Instrumentation: SBE CTD, WBAT echosounder, ADCP (~200m), SonoVault acoustic listening (~250m), Floating Sediment Trap (~250m)
52° 51' S 40° 5' W Oxygen Site: P3; Deployed: 29/12/2022; Water depth: ~3750 m. Instrumentation: SBE CTD (~175m), RDI ADCP (~200m), OPIC (~200m) Seaguard current meter with O2 sensor (~1000m) Floating Sediment Trap (~2000m)
52° 48' S 40° 7' W Oxygen Site: P3; Recovered: 28/12/2022; Deployed: 12/02/2021 (JC211); Water depth: ~3760 m. Instrumentation SBE CTD (~200 m and ~1000 m), Sediment traps (~1000 m and ~2000 m), Seaguard current meters with O2 sensor (~1000 m and ~2000 m), SAMI pH meter (~200 m), SonoVault acoustic listening (~450 m)
52° 53' S 40° 1' W Particulate organic matter (inc POC, PON) Site: OP3; Deployed: 22/01/2023; Water depth: 3180 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
60° 36' S 42° 0' W Particulate organic matter (inc POC, PON) Site: OP3; Recovered on: 23/01/2023; Water depth: 3481 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
52° 48' S 40° 6' W Particulate organic matter (inc POC, PON) Site: P3; Deployed: 28/12/2022; Water depth: 3801 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
52° 51' S 40° 5' W Particulate organic matter (inc POC, PON) Site: P3; Deployed: 29/12/2022; Water depth: ~3750 m. Instrumentation: SBE CTD (~175m), RDI ADCP (~200m), OPIC (~200m) Seaguard current meter with O2 sensor (~1000m) Floating Sediment Trap (~2000m)
52° 48' S 40° 7' W Particulate organic matter (inc POC, PON) Site: P3; Recovered: 28/12/2022; Deployed: 12/02/2021 (JC211); Water depth: ~3760 m. Instrumentation SBE CTD (~200 m and ~1000 m), Sediment traps (~1000 m and ~2000 m), Seaguard current meters with O2 sensor (~1000 m and ~2000 m), SAMI pH meter (~200 m), SonoVault acoustic listening (~450 m)
52° 53' S 40° 1' W Particulate organic matter (inc POC, PON) Site: P3; Recovered: 29/12/2022; Water depth: 3817 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
40° 43' S 50° 40' W Particulate organic matter (inc POC, PON) Site: S. Atlantic ? en route to S. Ocean (test); Deployed: 24/12/2022; Water depth: 5462 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
40° 43' S 50° 40' W Particulate organic matter (inc POC, PON) Site: S. Atlantic ? en route to S. Ocean (test); Recovered: 24/12/2022; Water depth: 5461 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
52° 51' S 40° 5' W Phytoplankton Site: P3; Deployed: 29/12/2022; Water depth: ~3750 m. Instrumentation: SBE CTD (~175m), RDI ADCP (~200m), OPIC (~200m) Seaguard current meter with O2 sensor (~1000m) Floating Sediment Trap (~2000m)
52° 48' S 40° 7' W Phytoplankton Site: P3; Recovered: 28/12/2022; Deployed: 12/02/2021 (JC211); Water depth: ~3760 m. Instrumentation SBE CTD (~200 m and ~1000 m), Sediment traps (~1000 m and ~2000 m), Seaguard current meters with O2 sensor (~1000 m and ~2000 m), SAMI pH meter (~200 m), SonoVault acoustic listening (~450 m)
52° 53' S 40° 1' W Sediment traps Site: OP3; Deployed: 22/01/2023; Water depth: 3180 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
60° 36' S 42° 0' W Sediment traps Site: OP3; Recovered on: 23/01/2023; Water depth: 3481 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
52° 48' S 40° 6' W Sediment traps Site: P3; Deployed: 28/12/2022; Water depth: 3801 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
52° 51' S 40° 5' W Sediment traps Site: P3; Deployed: 29/12/2022; Water depth: ~3750 m. Instrumentation: SBE CTD (~175m), RDI ADCP (~200m), OPIC (~200m) Seaguard current meter with O2 sensor (~1000m) Floating Sediment Trap (~2000m)
52° 48' S 40° 7' W Sediment traps Site: P3; Recovered: 28/12/2022; Deployed: 12/02/2021 (JC211); Water depth: ~3760 m. Instrumentation SBE CTD (~200 m and ~1000 m), Sediment traps (~1000 m and ~2000 m), Seaguard current meters with O2 sensor (~1000 m and ~2000 m), SAMI pH meter (~200 m), SonoVault acoustic listening (~450 m)
52° 53' S 40° 1' W Sediment traps Site: P3; Recovered: 29/12/2022; Water depth: 3817 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
40° 43' S 50° 40' W Sediment traps Site: S. Atlantic ? en route to S. Ocean (test); Deployed: 24/12/2022; Water depth: 5462 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
40° 43' S 50° 40' W Sediment traps Site: S. Atlantic ? en route to S. Ocean (test); Recovered: 24/12/2022; Water depth: 5461 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
63° 58' S 28° 52' W Subsurface temperature and salinity measurements Deployed TWR Apex Argo profiling float 9617, WMO ID 1902089, on 11/01/2023
61° 39' S 31° 6' W Subsurface temperature and salinity measurements Deployed TWR Apex Argo profiling float 9618, WMO ID 1902090, on 13/01/2023
58° 38' S 30° 49' W Subsurface temperature and salinity measurements Deployed TWR Apex Argo profiling float 9619, WMO ID 1902091, on 15/01/2023
52° 53' S 40° 1' W Suspended matter Site: OP3; Deployed: 22/01/2023; Water depth: 3180 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
60° 36' S 42° 0' W Suspended matter Site: OP3; Recovered on: 23/01/2023; Water depth: 3481 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
52° 48' S 40° 6' W Suspended matter Site: P3; Deployed: 28/12/2022; Water depth: 3801 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
52° 53' S 40° 1' W Suspended matter Site: P3; Recovered: 29/12/2022; Water depth: 3817 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
40° 43' S 50° 40' W Suspended matter Site: S. Atlantic ? en route to S. Ocean (test); Deployed: 24/12/2022; Water depth: 5462 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
40° 43' S 50° 40' W Suspended matter Site: S. Atlantic ? en route to S. Ocean (test); Recovered: 24/12/2022; Water depth: 5461 m. Instrumentation: 3x trap array (~50, ~100, ~150 m) attached to a marking buoy with a GPS beacon, timed-release messenger at the top, 50kg weight at the bottom
52° 48' S 40° 7' W pH Site: P3; Recovered: 28/12/2022; Deployed: 12/02/2021 (JC211); Water depth: ~3760 m. Instrumentation SBE CTD (~200 m and ~1000 m), Sediment traps (~1000 m and ~2000 m), Seaguard current meters with O2 sensor (~1000 m and ~2000 m), SAMI pH meter (~200 m), SonoVault acoustic listening (~450 m)

Summary of BODC Data Holdings for the Cruise

National Oceanographic Database

No data currently held for this cruise in the BODC National Oceanographic Database

Project Database

No data currently held for this cruise in the BODC Project Database

References

Track Charts

Track Chart

Reports

Cruise Report