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RRS Discovery DY111

Cruise summary report

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Cruise Info. 
Ship name (ship code)RRS Discovery (74EQ)
Cruise identifierDY111
Cruise period2019-12-02 — 2020-01-09
StatusCompleted
Port of departurePunta Arenas, Chile
Port of returnPunta Arenas, Chile
PurposeResearch
ObjectivesCUSTARD - Carbon Uptake and Seasonal Traits of Antarctic Remineralisation Depth. The CUSTARD project examines how seasonal changes in nutrient availability for phytoplankton, at a key junction of the global ocean circulation, influence how long carbon is trapped in the ocean rather than escaping to the atmosphere as carbon dioxide. DY111 was a process cruise immediately prior to the mooring recovery cruise, to allow a more detailed study of the biogeochemistry of the site at the key spring bloom period.

Objectives
1. Deploy two other gliders (just for the duration of the cruise)
2. Deploy 6 BGC ARGO floats on behalf of the SOCCOM project
3. Make multiple visits to 3 sites along 89 W (OOI, TN at 57S and TS at 60S)
4. Carry out a full depth CTD transect between OOI and TS at 1 degree latitude resolution.

All objectives were met, though one glider had to be recovered immediately after deployment due to a leak. Additionally, a modest spatial survey was carried out collecting underway data and samples along a grid-pattern extending 90km west of 89W, to assess upstream properties and gradients.
Chief scientistAdrian P Martin (National Oceanography Centre, Southampton)
Cruise reportRRS Discovery DY111 cruise report dy111.pdf (6.58 MB) 
Ocean/sea areas 
GeneralSouth East Pacific Ocean (limit 140W)
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: activity duration in days = 36
Description: Underway surface hydrography, meteorology, bathymetry and navigation
Surface measurements underway (T,S)Quantity: activity duration in days = 36
Description: Salinity from underway
CTD stationsQuantity: number of profiles = 43
Description: Salinity from CTD niskins
CTD stationsQuantity: number of profiles = 65
Description: CTD frame (CTD, transmissometer, fluorometer, optode, optical backscatter, PAR)
Optics (eg underwater light levels)Quantity: number of profiles = 43
Description: vLight absorption from CTD niskins
Current profiler (eg ADCP)Quantity: activity duration in days = 36
Description: VMADCP
Chemical oceanography 
OxygenQuantity: number of profiles = 65
Description: Diss. Oxygen from CTD niskins
Carbon dioxideQuantity: activity duration in days = 36
Description: pCO22 from underway
Carbon dioxideQuantity: activity duration in days = 36
Description: DIC from underway
Carbon dioxideQuantity: number of profiles = 43
Description: DIC from CTD niskins
PhosphateQuantity: number of profiles = 65
Description: Macronutrients (Si(OH)4, NO, PO) from CTD niskins
NitrateQuantity: activity duration in days = 36
Description: Nitrate from underway
NitrateQuantity: number of profiles = 65
Description: Macronutrients (Si(OH)4, NO, PO) from CTD niskins
NitriteQuantity: number of profiles = 65
Description: Macronutrients (Si(OH)4, NO, PO) from CTD niskins
SilicateQuantity: number of profiles = 65
Description: Macronutrients (Si(OH)4, NO, PO) from CTD niskins
AlkalinityQuantity: number of profiles = 43
Description: TA from CTD niskins
AlkalinityQuantity: activity duration in days = 36
Description: TA from underway
IsotopesQuantity: number of profiles = 43
Description: Thorium from CTD niskins
IsotopesQuantity: number of experiments = 17
Description: 14C from incubations
IsotopesQuantity: number of profiles = 43
Description: 14C from CTD niskins
IsotopesQuantity: number of experiments = 17
Description: Thorium from SAPS
Contamination 
Trace metalsQuantity: number of profiles = 22
Description: Diss. And particulate trace metals from CTD niskins
Trace metalsQuantity: number of deployments = 22
Description: TM particulates from SAPS
Other contaminant measurementsQuantity: number of deployments = 22
Description: Microplastics from SAPS
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: activity duration in days = 36
Description: Chl-a from underway
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of profiles = 65
Description: CTD frame (CTD, transmissometer, fluorometer, optode, optical backscatter, PAR)
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of profiles = 43
Description: Chl-a from CTD niskins
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: activity duration in days = 36
Description: Fast Repetition Rate Fluorimeter (FRRF3)
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of deployments = 22
Description: Chl from Marine Snow Catcher
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of experiments = 17
Description: Chl-a from incubations
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of profiles = 43
Description: HPCL pigments from CTD niskins
Particulate organic matter (inc POC, PON)Quantity: number of profiles = 65
Description: Underwater Vision Profiler (UVP) [CTD frame]
Particulate organic matter (inc POC, PON)Quantity: number of profiles = 43
Description: PABS from CTD niskins
Particulate organic matter (inc POC, PON)Quantity: number of experiments = 17
Description: PON from incubations
Particulate organic matter (inc POC, PON)Quantity: number of experiments = 17
Description: PABS from incubations
Particulate organic matter (inc POC, PON)Quantity: number of experiments = 17
Description: Bsi from incubations
Particulate organic matter (inc POC, PON)Quantity: number of experiments = 17
Description: POC from incubations
Particulate organic matter (inc POC, PON)Quantity: number of profiles = 43
Description: PON from CTD niskins
Particulate organic matter (inc POC, PON)Quantity: number of deployments = 25
Description: Red Camera Frame
Particulate organic matter (inc POC, PON)Quantity: number of profiles = 43
Description: BSi from CTD niskins
Particulate organic matter (inc POC, PON)Quantity: number of profiles = 65
Description: CTD frame (CTD, transmissometer, fluorometer, optode, optical backscatter, PAR)
Particulate organic matter (inc POC, PON)Quantity: number of experiments = 17
Description: BSi, POC from SAPS
Particulate organic matter (inc POC, PON)Quantity: number of deployments = 22
Description: POC from Marine Snow Catcher
Particulate organic matter (inc POC, PON)Quantity: number of deployments = 22
Description: PON from Marine Snow Catcher
Particulate organic matter (inc POC, PON)Quantity: number of deployments = 22
Description: Bsi from Marine Snow Catcher
Particulate organic matter (inc POC, PON)Quantity: number of deployments = 22
Description: Calcite from Marine Snow Catcher
Particulate organic matter (inc POC, PON)Quantity: number of profiles = 43
Description: POC from CTD niskins
Particulate organic matter (inc POC, PON)Quantity: number of deployments = 22
Description: TM particulates from SAPS
Dissolved organic matter (inc DOC)Quantity: number of profiles = 43
Description: DOC from CTD niskins
PhytoplanktonQuantity: number of profiles = 43
Description: Phytoplankton biomass, microscopy from CTD niskins
Other biological/fisheries measurementQuantity: number of deployments = 22
Description: Funghi DNA from SAPS
Meteorology 
Upper air observationsQuantity: activity duration in days = 36
Description: Underway surface hydrography, meteorology, bathymetry and navigation
Incident radiationQuantity: activity duration in days = 36
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 
46  Bottle station
[Hide series]

BODC idDate/TimeLocationDoc.
20531432019-12-09 15:01 59° 57' 29" S  89° 7' 31" W  View metadata report for BODC series reference number 2053143
20531792019-12-13 14:59 55° 0' 0" S  89° 7' 58" W  View metadata report for BODC series reference number 2053179
20531922019-12-15 07:43 54° 24' 58" S  89° 8' 5" W  View metadata report for BODC series reference number 2053192
20532842019-12-27 20:17 59° 57' 30" S  89° 7' 52" W  View metadata report for BODC series reference number 2053284
21219652020-01-03 18:14 54° 24' 54" S  89° 7' 34" W  View metadata report for BODC series reference number 2121965
20531552019-12-11 11:56 57° 0' 0" S  89° 7' 56" W  View metadata report for BODC series reference number 2053155
20531672019-12-12 21:19 56° 0' 2" S  89° 8' 1" W  View metadata report for BODC series reference number 2053167
20533152020-01-02 20:24 54° 24' 55" S  89° 7' 33" W  View metadata report for BODC series reference number 2053315
21217812019-12-13 19:29 55° 0' 15" S  89° 7' 57" W  View metadata report for BODC series reference number 2121781
21218612019-12-20 19:05 57° 0' 58" S  89° 9' 7" W  View metadata report for BODC series reference number 2121861
21218852019-12-22 17:23 54° 25' 8" S  89° 8' 46" W  View metadata report for BODC series reference number 2121885
21219892020-01-06 10:01:30 55° 14' 5" S  83° 22' 38" W  View metadata report for BODC series reference number 2121989
20532352019-12-18 23:59 58° 0' 1" S  89° 7' 56" W  View metadata report for BODC series reference number 2053235
21217442019-12-09 23:17:30 59° 57' 34" S  89° 7' 43" W  View metadata report for BODC series reference number 2121744
21217562019-12-11 18:38:30 57° 0' 0" S  89° 7' 58" W  View metadata report for BODC series reference number 2121756
21218732019-12-21 07:50 55° 59' 58" S  89° 7' 50" W  View metadata report for BODC series reference number 2121873
20531182019-12-06 16:15 54° 25' 16" S  89° 7' 42" W  View metadata report for BODC series reference number 2053118
20532722019-12-27 12:35:30 59° 57' 26" S  89° 7' 56" W  View metadata report for BODC series reference number 2053272
20532962019-12-29 11:50:30 56° 59' 58" S  89° 7' 58" W  View metadata report for BODC series reference number 2053296
21217192019-12-06 07:05:30 54° 25' 16" S  89° 7' 42" W  View metadata report for BODC series reference number 2121719
21218242019-12-18 12:04:30 59° 0' 0" S  89° 7' 59" W  View metadata report for BODC series reference number 2121824
21218482019-12-19 19:05 56° 59' 59" S  89° 7' 58" W  View metadata report for BODC series reference number 2121848
21219282019-12-30 18:50 59° 58' 4" S  89° 8' 0" W  View metadata report for BODC series reference number 2121928
20532472019-12-19 15:46 56° 59' 58" S  89° 7' 57" W  View metadata report for BODC series reference number 2053247
20532602019-12-22 10:47:30 54° 24' 58" S  89° 7' 58" W  View metadata report for BODC series reference number 2053260
20533032019-12-31 10:27 59° 57' 31" S  89° 7' 58" W  View metadata report for BODC series reference number 2053303
21217202019-12-06 22:35:30 54° 25' 16" S  89° 7' 42" W  View metadata report for BODC series reference number 2121720
21217682019-12-13 02:04:30 56° 0' 29" S  89° 7' 5" W  View metadata report for BODC series reference number 2121768
21218002019-12-15 11:48 54° 24' 58" S  89° 8' 5" W  View metadata report for BODC series reference number 2121800
21218972019-12-27 19:02 59° 59' 10" S  89° 5' 53" W  View metadata report for BODC series reference number 2121897
20532592019-12-20 14:45:30 57° 0' 1" S  89° 8' 0" W  View metadata report for BODC series reference number 2053259
21217322019-12-09 04:40:30 59° 57' 51" S  89° 7' 35" W  View metadata report for BODC series reference number 2121732
21218122019-12-17 18:53 59° 57' 37" S  89° 7' 31" W  View metadata report for BODC series reference number 2121812
21219772020-01-04 18:31 57° 0' 7" S  89° 7' 56" W  View metadata report for BODC series reference number 2121977
20531802019-12-14 11:55:30 54° 25' 38" S  89° 6' 22" W  View metadata report for BODC series reference number 2053180
20532232019-12-18 07:49 59° 0' 0" S  89° 7' 59" W  View metadata report for BODC series reference number 2053223
20533272020-01-03 15:15:30 54° 24' 53" S  89° 7' 34" W  View metadata report for BODC series reference number 2053327
20531312019-12-08 21:04:30 59° 57' 34" S  89° 7' 43" W  View metadata report for BODC series reference number 2053131
20532112019-12-17 11:38 59° 57' 38" S  89° 7' 23" W  View metadata report for BODC series reference number 2053211
21217932019-12-14 19:11:30 54° 25' 0" S  89° 8' 6" W  View metadata report for BODC series reference number 2121793
21218362019-12-19 04:18 58° 0' 54" S  89° 4' 31" W  View metadata report for BODC series reference number 2121836
21219042019-12-28 17:26 57° 59' 55" S  89° 7' 56" W  View metadata report for BODC series reference number 2121904
21219162019-12-29 19:09:30 57° 0' 0" S  89° 7' 56" W  View metadata report for BODC series reference number 2121916
21219412019-12-31 13:25 59° 58' 22" S  89° 7' 32" W  View metadata report for BODC series reference number 2121941
21219532020-01-03 07:02 54° 24' 40" S  89° 7' 41" W  View metadata report for BODC series reference number 2121953
21217072019-12-04 04:10:30 52° 39' 10" S  80° 32' 18" W  View metadata report for BODC series reference number 2121707
1  Pumped water sample
[Hide series]

BODC idDate/TimeLocationDoc.
20531062019-12-05 12:04  — 2020-01-05 12:00 59° 59' 7" S  92° 12' 50" W — 54° 12' 46" S  86° 4' 4" W  View metadata report for BODC series reference number 2053106
Discrete samples 
107  All plastic clean surface pumped supply
35  CTD frame plus rosette sampler
141  Sample taken from ship's non-toxic supply
17  Stand-alone pumps
20  

 

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