RRS Discovery D301b
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Discovery (74E3) |
| Cruise identifier | D301b |
| Cruise period | 2006-03-20 — 2006-04-11 |
| Status | Completed |
| Port of departure | Durban, South Africa |
| Port of return | Durban, South Africa |
| Purpose | Research |
| Objectives | D301B 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 scientist | Herman Ridderinkhof (Royal Netherlands Institute for Sea Research) |
| Project | Long-term Ocean Climate Observations (LOCO) |
| Coordinating body | Netherlands Organisation for Scientific Research (NWO) |
| Cruise report |  (2.47 MB) |
| Ocean/sea areas | |
| General | Mozambique Channel (Indian Ocean) |
| Specific | Mozambique Channel, Southwest Indian Ocean |
| Track charts | (0.03 MB) |
| Measurements | |
| Physical oceanography | |
| Surface measurements underway (T,S) | Quantity: number of profiles = 1 Description: standard underway measurements |
| CTD stations | Quantity: 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 | |
| Oxygen | Quantity: number of samples = 15 Description: water at differing depths for determination of oxygen and nutrients |
| Other dissolved gases | Quantity: number of samples = 15 Description: water at differing depths for determination of oxygen and nutrients |
| Other chemical oceanographic measurements | Quantity: 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 bottom | Quantity: number of stations = 5 Description: multicore tested for nutrients and dissolved carbon |
| Moorings, landers, buoys | |
| Physical oceanography | |
| Current meters | 16° 33' 0" S 40° 8' 59" E — Mooring 4 collected and redeployed |
| Current meters | 16° 58' 59" S 41° 55' 59" E — Mooring 7 collected and redeployed |
| Current meters | 16° 41' 59" S 40° 51' 0" E — Trap mooring deployed |
| Current meters | 17° 15' 0" S 43° 1' 59" E — Mooring 9 collected and redeployed |
| Current meters | 17° 6' 59" S 42° 28' 59" E — Mooring 8 collected and redeployed |
| Current meters | 16° 51' 59" S 41° 27' 59" E — Mooring 6 collected and redeployed |
| Current meters | 16° 45' 0" S 40° 36' 0" E — Mooring 5a collected and redeployed |
| Current meters | 16° 38' 59" S 40° 36' 0" E — Mooring 5 collected and redeployed |
| Current profiler (eg ADCP) | 16° 41' 59" S 40° 51' 0" E — Trap mooring deployed |
| Current profiler (eg ADCP) | 16° 58' 59" S 41° 55' 59" E — Mooring 7 collected and redeployed |
| 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° 33' 0" S 40° 8' 59" E — Mooring 4 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° 38' 59" S 40° 36' 0" E — Mooring 5 collected and redeployed |
| Current profiler (eg ADCP) | 17° 15' 0" S 43° 1' 59" E — Mooring 9 collected and redeployed |
| Biology and fisheries | |
| Sediment traps | 16° 41' 59" S 40° 51' 0" E — Trap mooring deployed |
