Resources

RRS Discovery DY112

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74EQ)
Cruise identifierDY112
Cruise period2020-01-16 — 2020-01-25
StatusCompleted
Port of departurePunta Arenas, Chile
Port of returnPunta Arenas, Chile
PurposeResearch
ObjectivesCUSTARD #3 - Carbon Uptake and Seasonal Traits of Antarctic Remineralisation Depth - mooring recovery.

DY112 took place on the RRS Discovery, departing Punta Arenas, Chile on 16 January 2020 and returning to Punta Arenas, Chile on 25 January 2020. The science party consisted of a five-person OOI team from the Woods Hole Oceanographic Institution (WHOI), a three-person team from the National Oceanography Centre (NOC), and three technicians from the UK's National Marine Facilities (NMF).

The previous cruise, DY111, was a NERC funded CUSTARD Program (Carbon Uptake and Seasonal Traits of Antarctic Remineralisation Depth, PI Adrian Martin, NOC) cruise. During that cruise water sampling was conducted in the vicinity of the OOI Surface Mooring for data validation.

The primary objective of recovering the GS01SUMO-00004 Surface Mooring was accomplished. We were unable to collect shipboard meteorological data for validation of the Surface Mooring due to time and weather constraints. CUSTARD activities included underway and Go-flo water sampling.
Chief scientistSheri White (Woods Hole Oceanographic Institution Department of Applied Ocean Physics and Engineering)
Cruise reportRRS Discovery DY112 cruise report dy112.pdf (2.07 MB) 
Ocean/sea areas 
GeneralSouth East Pacific Ocean (limit 140W)
Southern Ocean
Track chartsRRS Discovery DY112 cruise track — dy112trk.pdf (0.23 MB) 
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 10
Description: Underway surface hydrography, meteorology, bathymetry and navigation
Surface measurements underway (T,S)Quantity: activity duration in days = 10
Description: Salinity from underway
CTD stationsQuantity: number of profiles = 43
Description: Salinity from GoFlo bottles
Chemical oceanography 
OxygenQuantity: number of profiles = 65
Description: Diss. Oxygen from GoFlo bottles
Carbon dioxideQuantity: activity duration in days = 10
Description: pCO22 from underway
Carbon dioxideQuantity: number of profiles = 43
Description: DIC from GoFlo bottles
Carbon dioxideQuantity: activity duration in days = 10
Description: DIC from underway
PhosphateQuantity: number of profiles = 65
Description: Macronutrients (Si(OH)4, NO, PO) from GoFlo bottles
NitrateQuantity: number of profiles = 65
Description: Macronutrients (Si(OH)4, NO, PO) from GoFlo bottles
NitrateQuantity: activity duration in days = 10
Description: Nitrate from underway
NitriteQuantity: number of profiles = 65
Description: Macronutrients (Si(OH)4, NO, PO) from GoFlo bottles
SilicateQuantity: number of profiles = 65
Description: Macronutrients (Si(OH)4, NO, PO) from GoFlo bottles
AlkalinityQuantity: number of profiles = 43
Description: TA from GoFlo bottles
AlkalinityQuantity: activity duration in days = 10
Description: TA from underway
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: activity duration in days = 10
Description: Chl-a from underway
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of profiles = 43
Description: Chl-a from GoFlo bottles
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of profiles = 43
Description: HPCL pigments from GoFlo bottles
Particulate organic matter (inc POC, PON)Quantity: number of profiles = 43
Description: BSi from GoFlo bottles
Meteorology 
Upper air observationsQuantity: activity duration in days = 10
Description: Underway surface hydrography, meteorology, bathymetry and navigation
Incident radiationQuantity: activity duration in days = 10
Description: Underway surface hydrography, meteorology, bathymetry and navigation
Moorings, landers, buoys 
Chemical oceanography 
Nitrate54° 0' 0" S  89° 0' 0" W — OOI surface mooring (data goes live to public domain) augmented with NOC nitrate and silicate sensors
Silicate54° 0' 0" S  89° 0' 0" W — OOI surface mooring (data goes live to public domain) augmented with NOC nitrate and silicate sensors
Data held at BODC Get data
Series/Profiles 
32  Bottle station
Nitrate concentration parameters in the water column
Quality control flags
Chlorophyll pigment concentrations in water bodies
Alkalinity, acidity and pH of the water column
Reference numbers
Total dissolved inorganic carbon (TCO2) concentration in the water column
Nitrite concentration parameters in the water column
Vertical spatial coordinates
Phosphate concentration parameters in the water column
Dissolved oxygen parameters in the water column
Silicate concentration parameters in the water column
Nitrate concentration parameters in the water column
Quality control flags
Chlorophyll pigment concentrations in water bodies
Alkalinity, acidity and pH of the water column
Reference numbers
Total dissolved inorganic carbon (TCO2) concentration in the water column
Nitrite concentration parameters in the water column
Vertical spatial coordinates
Phosphate concentration parameters in the water column
Dissolved oxygen parameters in the water column
Silicate concentration parameters in the water column

BODC idDate/TimeLocationDoc.
20539422020-01-21 17:03 54° 25' 26" S  89° 8' 2" W  View metadata report for BODC series reference number 2053942
22440372020-01-21 12:22 54° 25' 8" S  89° 8' 16" W  View metadata report for BODC series reference number 2244037
22441292020-01-21 13:05 54° 25' 12" S  89° 8' 13" W  View metadata report for BODC series reference number 2244129
22448482020-01-21 16:21 54° 25' 15" S  89° 8' 9" W  View metadata report for BODC series reference number 2244848
22448612020-01-21 16:43 54° 25' 22" S  89° 8' 6" W  View metadata report for BODC series reference number 2244861
20539542020-01-21 17:20 54° 25' 26" S  89° 8' 2" W  View metadata report for BODC series reference number 2053954
22440862020-01-21 16:43 54° 25' 22" S  89° 8' 6" W  View metadata report for BODC series reference number 2244086
22441422020-01-21 13:42 54° 25' 15" S  89° 8' 9" W  View metadata report for BODC series reference number 2244142
22448852020-01-21 17:20 54° 25' 26" S  89° 8' 2" W  View metadata report for BODC series reference number 2244885
22440502020-01-21 13:26 54° 25' 12" S  89° 8' 9" W  View metadata report for BODC series reference number 2244050
22448242020-01-21 13:26 54° 25' 12" S  89° 8' 9" W  View metadata report for BODC series reference number 2244824
22448732020-01-21 17:03 54° 25' 26" S  89° 8' 2" W  View metadata report for BODC series reference number 2244873
20539302020-01-21 16:43 54° 25' 22" S  89° 8' 6" W  View metadata report for BODC series reference number 2053930
22441662020-01-21 16:43 54° 25' 22" S  89° 8' 6" W  View metadata report for BODC series reference number 2244166
22441912020-01-21 17:20 54° 25' 26" S  89° 8' 2" W  View metadata report for BODC series reference number 2244191
20539052020-01-21 13:26 54° 25' 12" S  89° 8' 9" W  View metadata report for BODC series reference number 2053905
20539172020-01-21 13:42 54° 25' 15" S  89° 8' 9" W  View metadata report for BODC series reference number 2053917
22441052020-01-21 17:20 54° 25' 26" S  89° 8' 2" W  View metadata report for BODC series reference number 2244105
22441302020-01-21 13:26 54° 25' 12" S  89° 8' 9" W  View metadata report for BODC series reference number 2244130
22441542020-01-21 16:21 54° 25' 15" S  89° 8' 9" W  View metadata report for BODC series reference number 2244154
22448002020-01-21 12:22 54° 25' 8" S  89° 8' 16" W  View metadata report for BODC series reference number 2244800
20538862020-01-21 12:22 54° 25' 8" S  89° 8' 16" W  View metadata report for BODC series reference number 2053886
22440742020-01-21 16:21 54° 25' 15" S  89° 8' 9" W  View metadata report for BODC series reference number 2244074
20539292020-01-21 16:21 54° 25' 15" S  89° 8' 9" W  View metadata report for BODC series reference number 2053929
22440492020-01-21 13:05 54° 25' 12" S  89° 8' 13" W  View metadata report for BODC series reference number 2244049
22440982020-01-21 17:03 54° 25' 26" S  89° 8' 2" W  View metadata report for BODC series reference number 2244098
22441782020-01-21 17:03 54° 25' 26" S  89° 8' 2" W  View metadata report for BODC series reference number 2244178
22448362020-01-21 13:42 54° 25' 15" S  89° 8' 9" W  View metadata report for BODC series reference number 2244836
20538982020-01-21 13:05 54° 25' 12" S  89° 8' 13" W  View metadata report for BODC series reference number 2053898
22440622020-01-21 13:42 54° 25' 15" S  89° 8' 9" W  View metadata report for BODC series reference number 2244062
22441172020-01-21 12:22 54° 25' 8" S  89° 8' 16" W  View metadata report for BODC series reference number 2244117
22448122020-01-21 13:05 54° 25' 12" S  89° 8' 13" W  View metadata report for BODC series reference number 2244812
1  Meteorological data logger
Reference numbers
Horizontal spatial co-ordinates
Air pressure
Visible waveband radiance and irradiance measurements in the atmosphere
Date and time
Air temperature
Raw light meter output
Wind strength and direction
Solar Radiation
Atmospheric humidity
Reference numbers
Horizontal spatial co-ordinates
Air pressure
Visible waveband radiance and irradiance measurements in the atmosphere
Date and time
Air temperature
Raw light meter output
Wind strength and direction
Solar Radiation
Atmospheric humidity

BODC idDate/TimeLocationDoc.
20230312020-01-16 09:00  — 2020-01-24 22:02 54° 25' 51" S  89° 13' 21" W — 52° 39' 12" S  70° 46' 41" W  View metadata report for BODC series reference number 2023031
1  Multi-beam echosounder
Reference numbers
Horizontal spatial co-ordinates
Date and time
Platform or instrument orientation
Horizontal platform movement
Bathymetry and Elevation
Reference numbers
Horizontal spatial co-ordinates
Date and time
Platform or instrument orientation
Horizontal platform movement
Bathymetry and Elevation

BODC idDate/TimeLocationDoc.
20230182020-01-16 09:00  — 2020-01-24 22:02 54° 25' 51" S  89° 13' 21" W — 52° 39' 12" S  70° 46' 41" W  View metadata report for BODC series reference number 2023018
1  Multiple instrument types
Reference numbers
Horizontal spatial co-ordinates
Transmittance and attenuance of the water column
Date and time
Salinity of the water column
Temperature of the water column
Electrical conductivity of the water column
Raw fluorometer output
Metadata parameters
Raw suspended particulate material concentration sensor output
Chlorophyll pigment concentrations in water bodies
Reference numbers
Horizontal spatial co-ordinates
Transmittance and attenuance of the water column
Date and time
Salinity of the water column
Temperature of the water column
Electrical conductivity of the water column
Raw fluorometer output
Metadata parameters
Raw suspended particulate material concentration sensor output
Chlorophyll pigment concentrations in water bodies

BODC idDate/TimeLocationDoc.
20230432020-01-16 09:00  — 2020-01-24 22:02 54° 25' 51" S  89° 13' 21" W — 52° 39' 12" S  70° 46' 41" W  View metadata report for BODC series reference number 2023043
Discrete samples 
31  Sample taken from ship's non-toxic supply
8  Water bottle hydrocast