Cruise inventory

RRS Discovery D3_6

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74E3)
Cruise identifierD3_6
Cruise period1964-07-09 — 1964-07-28
StatusCompleted
Port of departurePort Louis, Mauritius
Port of returnMombasa, Kenya
PurposeResearch
ObjectivesTo complete its part of the UK contribution to the International Indian Ocean Expedition, Discovery occupied 291 water sampling stations in the Indian Ocean in 154 days at sea.
Chief scientistJohn C Swallow (National Institute of Oceanography)
ProjectInternational Indian Ocean Expedition
Cruise reportRRS Discovery D3_6 cruise report d3.pdf — access key 'C' (0.63 MB) 
Ocean/sea areas 
GeneralIndian Ocean
Track chartsRRS Discovery D3_6 cruise track — d3track.pdf (00 MB) 
Measurements 
Physical oceanography 
BathythermographDescription: hourly observations
Water bottle stationsQuantity: number of stations = 38
Description: 25 to the bottom
CTD stationsQuantity: number of profiles = 6
Description: temperature-salinty-depth (TSD)
Current metersQuantity: number of profiles = 46
Description: current-shear
Neutrally buoyant floatsQuantity: number of deployments = 2
Other physical oceanographic measurementsDescription: daily radiosondes
Biology and fisheries 
Phytoplankton pigs (eg chlorophyll, fluorescence)Quantity: number of profiles = 15
Description: chlorophyll
PhytoplanktonQuantity: number of hauls = 48
Description: 18 series of vertical net hauls; 15 fine mesh net hauls; 15 Indian Ocean standard net hauls
ZooplanktonQuantity: number of hauls = 48
Description: 18 series of vertical net hauls; 15 fine mesh net hauls; 15 Indian Ocean standard net hauls
NeustonQuantity: number of hauls = 18
Description: Neuston net
Pelagic fishQuantity: number of hauls = 7
Description: Isaacs-Kidd mid-water trawls
Meteorology 
Routine standard measurementsDescription: continuous
Geology and geophysics 
Single-beam echosoundingDescription: continuous