Cruise inventory

RRS Discovery DY017

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74EQ)
Cruise identifierDY017
Cruise period2014-10-20 — 2014-11-06
StatusCompleted
Port of departureSouthampton, United Kingdom
Port of returnFalmouth, United Kingdom
PurposeResearch
ObjectivesDY017 sampled the Hebridean and Malin shelf areas west of the UK, and parts of the Rockall Trough. The objectives were to map the large scale gradients in nutrients, dissolved iron and dissolved inorganic carbon within the context of studying shelf edge exchange processes with the open ocean. Data from this cruise will contribute towards the NERC Shelf Sea Biogeochemistry programme.
Chief scientistStuart Painter (National Oceanography Centre, Southampton)
ProjectShelf Sea Biogeochemistry
Cruise reportRRS Discovery DY017 cruise report dy017.pdf — access key 'C' (5.44 MB) 
Ocean/sea areas 
GeneralInner Seas off the West Coast of Scotland
North East Atlantic Ocean (limit 40W)
SpecificHebridean and Malin shelf. Rockall Trough
Track chartsRRS Discovery DY017 cruise track — dy017trk.pdf (00 MB) 
Measurements 
Physical oceanography 
CTD stationsQuantity: number of deployments = 6
Description: Near surface CTD profiles from floating buoy
CTD stationsQuantity: number of profiles = 58
Description: CTD profile data
Current profiler (eg ADCP)Quantity: activity duration in days = 15
Description: VM-ADCP
Chemical oceanography 
OxygenQuantity: number of samples = 284
Description: Dissolved oxygen (39 CTD profiles)
Carbon dioxideQuantity: number of samples = 476
Description: Dissolved inorganic carbon/alkalinity measurements (CTD bottle samples)
PhosphateQuantity: number of samples = 1034
Description: Nutrients (56 CTD profiles)
NitrateQuantity: number of samples = 1034
Description: Nutrients (56 CTD profiles)
SilicateQuantity: number of samples = 1034
Description: Nutrients (56 CTD profiles)
AlkalinityQuantity: number of samples = 476
Description: Dissolved inorganic carbon/alkalinity measurements (CTD bottle samples)
Trace elementsQuantity: number of samples = 49
Description: Iron Ligands (9 CTD profiles)
IsotopesQuantity: number of profiles = 25
Description: 15N-NO3 (Nitrogen and oxygen isotopic analysis on nitrate)
Other chemical oceanographic measurementsQuantity: number of profiles = 25
Description: Dissolved organic nutrients
Other chemical oceanographic measurementsQuantity: number of samples = 100
Description: Particulate trace metals (21 CTD profiles)
Other chemical oceanographic measurementsQuantity: number of samples = 530
Description: Dissolved iron / total dissolvable iron measurements (21 CTD profiles)
Other chemical oceanographic measurementsQuantity: number of profiles = 25
Description: Amino acids
Other chemical oceanographic measurementsQuantity: number of samples = 530
Description: Dissolved total / dissolvable trace metals (21 CTD profiles)
Other chemical oceanographic measurementsQuantity: number of samples = 50
Description: Underway trace metals
Other chemical oceanographic measurementsQuantity: number of profiles = 25
Description: Chromophoric/Fluorescent dissolved organic matter (CDOM/FDOM):
Contamination 
Suspended matterQuantity: number of profiles = 25
Description: 15N-NO3 (Nitrogen and oxygen isotopic analysis on nitrate)
Trace metalsQuantity: number of samples = 50
Description: Underway trace metals
Trace metalsQuantity: number of samples = 100
Description: Particulate trace metals (21 CTD profiles)
Trace metalsQuantity: number of samples = 530
Description: Dissolved iron / total dissolvable iron measurements (21 CTD profiles)
Trace metalsQuantity: number of samples = 530
Description: Dissolved total / dissolvable trace metals (21 CTD profiles)
Other dissolved substancesQuantity: number of profiles = 25
Description: Chromophoric/Fluorescent dissolved organic matter (CDOM/FDOM):
Other dissolved substancesQuantity: number of profiles = 25
Description: Dissolved organic nutrients
Other dissolved substancesQuantity: number of profiles = 25
Description: Amino acids
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of profiles = 23
Description: Chlorophyll , phytoplankton (Lugols) samples, CARD-FISH (69 samples)
Particulate organic matter (inc POC, PON)Quantity: number of profiles = 25
Description: Particulate organic matter (POC/PON, POP)
Particulate organic matter (inc POC, PON)Quantity: number of samples = 244
Description: POP (particulate organic phosphorous - 36 CTD profiles)
Particulate organic matter (inc POC, PON)Quantity: number of samples = 48
Description: PIC (particulate inorganic carbon)
Particulate organic matter (inc POC, PON)Quantity: number of samples = 244
Description: bSi (biogenic silica - 36 CTD profiles)
Particulate organic matter (inc POC, PON)Quantity: number of samples = 244
Description: POC/PON (particulate organic carbon/nitrogen - 36 CTD profiles)
Dissolved organic matter (inc DOC)Quantity: number of profiles = 25
Description: Dissolved organic nutrients
Dissolved organic matter (inc DOC)Quantity: number of profiles = 25
Description: Chromophoric/Fluorescent dissolved organic matter (CDOM/FDOM):
PhytoplanktonQuantity: number of profiles = 23
Description: Chlorophyll , phytoplankton (Lugols) samples, CARD-FISH (69 samples)
PhytoplanktonQuantity: number of hauls = 17
Description: Phytoplankton counts
Moorings, landers, buoys 
Physical oceanography 
Current profiler (eg ADCP)57° 6' 5" N  9° 20' 8" W — ADCP current meter for UK-OSNAP programme