Cruise inventory

RRS Charles Darwin CD88

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Charles Darwin (74AB)
Cruise identifierCD88
Cruise period1994-07-25 — 1994-08-15
StatusCompleted
Port of departureReykjavík, Iceland
Port of returnPonta Delgada, Portugal
PurposeResearch
ObjectivesCollection of high-quality kasten and box cores samples, sea-bottom photographs, water-column chemical and suspended sediment data.
Chief scientistI Nicholas McCave (University of Cambridge Department of Earth Sciences)
ProjectNE Atlantic Palaeoceanography and climate change
Coordinating bodyUK NERC
Cruise reportRRS Charles Darwin CD88 cruise report cd88.pdf — access key 'C' (4.42 MB) 
Ocean/sea areas 
GeneralNorth East Atlantic Ocean (limit 40W)
SpecificMid Atlantic Ridge, Iceland Basin, Bjorn Ridge, Gardar Ridge
Track chartsRRS Charles Darwin CD88 cruise track — cd88track.pdf (0.04 MB) 
Measurements 
Physical oceanography 
Water bottle stationsQuantity: number of profiles = 25
Description: GO Rosette with 10l Niskin bottles for salinity
CTD stationsQuantity: number of profiles = 25
Description: full depth Neil Brown CTDO+SeaTech 0.25m transmissometer
Transparency (eg transmissometer)Quantity: number of profiles = 25
Description: full depth Neil Brown CTDO+SeaTech 0.25m transmissometer
Chemical oceanography 
OxygenQuantity: number of profiles = 25
Description: full depth Neil Brown CTDO+SeaTech 0.25m transmissometer
PhosphateQuantity: number of profiles = 25
Description: GO rosette with 10l GO-FLO bottles
Trace elementsQuantity: number of profiles = 25
Description: GO rosette with 10l GO-FLO bottles for trace metal analysis(Cd)
Contamination 
Suspended matterQuantity: number of profiles = 25
Description: some bottles fired in pairs to give 20l for filtration through 0.4microm filter
Geology and geophysics 
Core - soft bottomQuantity: number of deployments = 18
Description: 15 Kasten cores w. 15cm square barrel & 3 20cm square barrel
Core - soft bottomQuantity: number of deployments = 19
Description: Box cores with 'Sandia Mk3' corer
Core - soft bottomQuantity: number of deployments = 6
Description: Piston cores with 1metre pilot trigger core
Bottom photographyQuantity: number of stations = 17
Description: 20 photos per station with UMEL camera
Single-beam echosoundingQuantity: track kilometres = 2800
Description: 10kHz Simrad echo-sounder
Single-beam echosoundingQuantity: track kilometres = 600
Description: swath line down median valley of mid-Atlantic ridge
Multi-beam echosoundingQuantity: track kilometres = 500
Description: swath bathymetry of some core sites
Single channel seismic reflectionQuantity: track kilometres = 1750
Description: 3.5kHz acoustic profiler
Data held at BODC 
Discrete samples 
23  CTD frame plus rosette samplerRaw suspended particulate material concentration sensor output
Density of the water column
Transmittance and attenuance of the water column
Salinity of the water column
Concentration of suspended particulate material in the water column
Temperature of the water column
Dissolved oxygen parameters in the water column