RRS Discovery DY112
Cruise summary report
| Cruise Info. | |||||||||||||||||||||||||||||||||||||
| Ship name (ship code) | RRS Discovery (74EQ) | ||||||||||||||||||||||||||||||||||||
| Cruise identifier | DY112 | ||||||||||||||||||||||||||||||||||||
| Cruise period | 2020-01-16 — 2020-01-25 | ||||||||||||||||||||||||||||||||||||
| Status | Completed | ||||||||||||||||||||||||||||||||||||
| Port of departure | Punta Arenas, Chile | ||||||||||||||||||||||||||||||||||||
| Port of return | Punta Arenas, Chile | ||||||||||||||||||||||||||||||||||||
| Purpose | Research | ||||||||||||||||||||||||||||||||||||
| Objectives | CUSTARD #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 scientist | Sheri White (Woods Hole Oceanographic Institution Department of Applied Ocean Physics and Engineering) | ||||||||||||||||||||||||||||||||||||
| Cruise report |  (2.07 MB) | ||||||||||||||||||||||||||||||||||||
| Ocean/sea areas | |||||||||||||||||||||||||||||||||||||
| General | South East Pacific Ocean (limit 140W) Southern Ocean | ||||||||||||||||||||||||||||||||||||
| Track charts | (0.23 MB) | ||||||||||||||||||||||||||||||||||||
| Measurements | |||||||||||||||||||||||||||||||||||||
| Physical oceanography | |||||||||||||||||||||||||||||||||||||
| Surface measurements underway (T,S) | Quantity: activity duration in days = 10 Description: Salinity from underway | ||||||||||||||||||||||||||||||||||||
| Surface measurements underway (T,S) | Quantity: activity duration in days = 10 Description: Underway surface hydrography, meteorology, bathymetry and navigation | ||||||||||||||||||||||||||||||||||||
| CTD stations | Quantity: number of profiles = 43 Description: Salinity from GoFlo bottles | ||||||||||||||||||||||||||||||||||||
| Chemical oceanography | |||||||||||||||||||||||||||||||||||||
| Oxygen | Quantity: number of profiles = 65 Description: Diss. Oxygen from GoFlo bottles | ||||||||||||||||||||||||||||||||||||
| Carbon dioxide | Quantity: activity duration in days = 10 Description: pCO22 from underway | ||||||||||||||||||||||||||||||||||||
| Carbon dioxide | Quantity: number of profiles = 43 Description: DIC from GoFlo bottles | ||||||||||||||||||||||||||||||||||||
| Carbon dioxide | Quantity: activity duration in days = 10 Description: DIC from underway | ||||||||||||||||||||||||||||||||||||
| Phosphate | Quantity: number of profiles = 65 Description: Macronutrients (Si(OH)4, NO, PO) from GoFlo bottles | ||||||||||||||||||||||||||||||||||||
| Nitrate | Quantity: activity duration in days = 10 Description: Nitrate from underway | ||||||||||||||||||||||||||||||||||||
| Nitrate | Quantity: number of profiles = 65 Description: Macronutrients (Si(OH)4, NO, PO) from GoFlo bottles | ||||||||||||||||||||||||||||||||||||
| Nitrite | Quantity: number of profiles = 65 Description: Macronutrients (Si(OH)4, NO, PO) from GoFlo bottles | ||||||||||||||||||||||||||||||||||||
| Silicate | Quantity: number of profiles = 65 Description: Macronutrients (Si(OH)4, NO, PO) from GoFlo bottles | ||||||||||||||||||||||||||||||||||||
| Alkalinity | Quantity: activity duration in days = 10 Description: TA from underway | ||||||||||||||||||||||||||||||||||||
| Alkalinity | Quantity: number of profiles = 43 Description: TA from GoFlo bottles | ||||||||||||||||||||||||||||||||||||
| Biology and fisheries | |||||||||||||||||||||||||||||||||||||
| 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 | ||||||||||||||||||||||||||||||||||||
| Phytoplankton pigs (eg chlorophyll, fluorescence) | Quantity: activity duration in days = 10 Description: Chl-a from underway | ||||||||||||||||||||||||||||||||||||
| Particulate organic matter (inc POC, PON) | Quantity: number of profiles = 43 Description: BSi from GoFlo bottles | ||||||||||||||||||||||||||||||||||||
| Meteorology | |||||||||||||||||||||||||||||||||||||
| Upper air observations | Quantity: activity duration in days = 10 Description: Underway surface hydrography, meteorology, bathymetry and navigation | ||||||||||||||||||||||||||||||||||||
| Incident radiation | Quantity: activity duration in days = 10 Description: Underway surface hydrography, meteorology, bathymetry and navigation | ||||||||||||||||||||||||||||||||||||
| Moorings, landers, buoys | |||||||||||||||||||||||||||||||||||||
| Chemical oceanography | |||||||||||||||||||||||||||||||||||||
| Nitrate | 54° 0' 0" S 89° 0' 0" W — OOI surface mooring (data goes live to public domain) augmented with NOC nitrate and silicate sensors | ||||||||||||||||||||||||||||||||||||
| Silicate | 54° 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 | |||||||||||||||||||||||||||||||||||||
| 8 Bottle station | Reference numbers Nitrite concentration parameters in the water column Phosphate concentration parameters in the water column Vertical spatial coordinates Silicate concentration parameters in the water column Nitrate concentration parameters in the water column Quality control flags Reference numbers Nitrite concentration parameters in the water column Phosphate concentration parameters in the water column Vertical spatial coordinates Silicate concentration parameters in the water column Nitrate concentration parameters in the water column Quality control flags
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| 1 Meteorological data logger | Reference numbers Horizontal spatial co-ordinates Air pressure Visible waveband radiance and irradiance measurements in the atmosphere Date and time Wind strength and direction Raw light meter output Air temperature Solar Radiation Atmospheric humidity Reference numbers Horizontal spatial co-ordinates Air pressure Visible waveband radiance and irradiance measurements in the atmosphere Date and time Wind strength and direction Raw light meter output Air temperature Solar Radiation Atmospheric humidity
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| 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
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| 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 Raw fluorometer output Electrical conductivity of the water column 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 Raw fluorometer output Electrical conductivity of the water column Metadata parameters Raw suspended particulate material concentration sensor output Chlorophyll pigment concentrations in water bodies
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| Discrete samples | |||||||||||||||||||||||||||||||||||||
| 32 Sample taken from ship's non-toxic supply | |||||||||||||||||||||||||||||||||||||
| 8 Water bottle hydrocast |
