Cruise inventory

RRS Discovery D301b

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS Discovery (74E3)
Cruise identifierD301b
Cruise period2006-03-20 — 2006-04-11
StatusCompleted
Port of departureDurban, South Africa
Port of returnDurban, South Africa
PurposeResearch
ObjectivesD301B is part of the Dutch Long-term Ocean Climate Observations (LOCO) programme. LOCO is funded by the Netherlands Organisation for Scientific Research (NWO).

Discovery cruises D301B and D302 were a joint expedition between NIOZ and NOC to
study the waters flowing to the west and south of Madagascar. The principal aim of the Dutch component (D301B) was to recover and redeploy moorings from the narrows of the Mozambique Channel at 17ES. These moorings contained current meters, ADCPs and sediment traps, and were accompanied by a high-resolution CTD survey and sea-bed samples taken with the multi-corer
Chief scientistHerman Ridderinkhof (Royal Netherlands Institute for Sea Research)
ProjectLong-term Ocean Climate Observations (LOCO)
Coordinating bodyNetherlands Organisation for Scientific Research (NWO)
Cruise reportRRS Discovery D301b cruise report d301b_d302.pdf — access key 'C' (2.47 MB) 
Ocean/sea areas 
GeneralMozambique Channel (Indian Ocean)
SpecificMozambique Channel, Southwest Indian Ocean
Track chartsRRS Discovery D301b cruise track — d301btrk.pdf (0.03 MB) 
Measurements 
Physical oceanography 
Surface measurements underway (T,S)Quantity: number of profiles = 1
Description: standard underway measurements
CTD stationsQuantity: number of profiles = 16
Description: CTD, including one cast to 1000 m depth for calibrations of Seacat sensors
Current profiler (eg ADCP)Quantity: number of profiles = 16
Description: Lowered Acoustic Doppler Current Profiler (LADCP)
Chemical oceanography 
OxygenQuantity: number of samples = 15
Description: water at differing depths for determination of oxygen and nutrients
Other dissolved gasesQuantity: number of samples = 15
Description: water at differing depths for determination of oxygen and nutrients
Other chemical oceanographic measurementsQuantity: number of stations = 5
Description: multicore tested for nutrients and dissolved carbon
Biology and fisheries 
Particulate organic matter (inc POC, PON)Quantity: number of samples = 15
Description: water at differing depths for determination of oxygen and nutrients
Geology and geophysics 
Core - soft bottomQuantity: number of stations = 5
Description: multicore tested for nutrients and dissolved carbon
Moorings, landers, buoys 
Physical oceanography 
Current meters17° 6' 59" S  42° 28' 59" E — Mooring 8 collected and redeployed
Current meters16° 51' 59" S  41° 27' 59" E — Mooring 6 collected and redeployed
Current meters16° 41' 59" S  40° 51' 0" E — Trap mooring deployed
Current meters17° 15' 0" S  43° 1' 59" E — Mooring 9 collected and redeployed
Current meters16° 58' 59" S  41° 55' 59" E — Mooring 7 collected and redeployed
Current meters16° 45' 0" S  40° 36' 0" E — Mooring 5a collected and redeployed
Current meters16° 38' 59" S  40° 36' 0" E — Mooring 5 collected and redeployed
Current meters16° 33' 0" S  40° 8' 59" E — Mooring 4 collected and redeployed
Current profiler (eg ADCP)16° 41' 59" S  40° 51' 0" E — Trap mooring deployed
Current profiler (eg ADCP)16° 51' 59" S  41° 27' 59" E — Mooring 6 collected and redeployed
Current profiler (eg ADCP)16° 45' 0" S  40° 36' 0" E — Mooring 5a collected and redeployed
Current profiler (eg ADCP)16° 38' 59" S  40° 36' 0" E — Mooring 5 collected and redeployed
Current profiler (eg ADCP)17° 6' 59" S  42° 28' 59" E — Mooring 8 collected and redeployed
Current profiler (eg ADCP)16° 58' 59" S  41° 55' 59" E — Mooring 7 collected and redeployed
Current profiler (eg ADCP)16° 33' 0" S  40° 8' 59" E — Mooring 4 collected and redeployed
Current profiler (eg ADCP)17° 15' 0" S  43° 1' 59" E — Mooring 9 collected and redeployed
Biology and fisheries 
Sediment traps16° 41' 59" S  40° 51' 0" E — Trap mooring deployed