RRS Charles Darwin CD113
Cruise summary report
| Cruise Info. | |
| Ship name (ship code) | RRS Charles Darwin (74AB) |
| Cruise identifier | CD113 |
| Cruise period | 1998-06-28 — 1998-07-22 |
| Status | Completed |
| Port of departure | Fairlie, United Kingdom |
| Port of return | Fairlie, United Kingdom |
| Purpose | Research |
| Objectives | The objectives of the cruise may only be broadly defined due to the multi-disciplinary and multi-institutional nature of the cruise. In general terms, the objectives were to undertake to a satisfactory extent the major proposed research activities of the individual research groups. A major core objective was to collect oxygen consumption and diffusion data using the new benthic Lander for the BENBO community as a whole at each of the three experimental sites. The first Leg of CD113 was devoted to oxygen micro-profile and gel work, and the second Leg devoted to chamber work. The mooring at site C only was to be turned around, and the bottom-mounted ADCP instrument at site B was to be recovered permanently. Throughout the cruise, satellite imagery of sea surface colour and temperature was obtained routinely to assess the nature and extent of the upper ocean phytoplankton bloom. |
| Chief scientist | Kevin S Black (Dunstaffnage Marine Laboratory) |
| Project | BENBO |
| Cruise report |  (0.79 MB) |
| Ocean/sea areas | |
| General | North Atlantic Ocean |
| Specific | Mouth of Rockall Trough; Hatton-Rockall Basin; Flank of Feni Drift |
| Track charts | (0.18 MB) |
| Measurements | |
| Physical oceanography | |
| CTD stations | Quantity: number of deployments = 11 Description: 11 CTD casts were completed during the cruise. |
| Subsurface temperature and salinity measurements | Quantity: number of deployments = 6 Description: 6 Aries deployments during the cruise. Aries lost at one point on the cruise and took 2 attempts to recover. |
| Biology and fisheries | |
| Phytoplankton | Quantity: number of deployments = 6 Description: 6 Aries deployments during the cruise. Aries lost at one point on the cruise and took 2 attempts to recover. |
| Geology and geophysics | |
| Core - soft bottom | Quantity: number of cores = 12 Description: 12 Multi corer samples taken. |
| Core - soft bottom | Quantity: number of cores = 12 Description: 12 Box corer samples taken. |
| Core - soft bottom | Quantity: number of cores = 24 Description: 24 Mega corer samples taken. |
| Bottom photography | Quantity: number of deployments = 3 Description: 3 camera casts during the cruise. |
| Moorings, landers, buoys | |
| Physical oceanography | |
| CTD stations | 52° 54' 59" N 16° 54' 59" W — CTD cast outboard. |
| CTD stations | 57° 4' 59" N 12° 30' 0" W — CTD cast outboard Station. |
| Current meters | 57° 6' 0" N 12° 30' 0" W — Current meeting morring recovered. |
| Current meters | 57° 2' 23" N 12° 28' 53" W — Current meter mooring deployed. |
| Current profiler (eg ADCP) | 57° 24' 59" N 15° 40' 59" W — ADCP recovered. |
| Biology and fisheries | |
| Biochemical measurements (eg lipids, amino acids) | 52° 55' 4" N 16° 55' 1" W — Site A; Mouth of Rockall Trough. Water depth: 3580m |
| Biochemical measurements (eg lipids, amino acids) | 57° 6' 0" N 12° 30' 54" W — Site C; Flank of Feni Drift. Water depth: 1920m |
| Biochemical measurements (eg lipids, amino acids) | 57° 25' 29" N 15° 40' 58" W — Site B; Hatton-Rockall Basin. Water depth: 1100m |
| Geology and geophysics | |
| Core - soft bottom | 52° 53' 59" N 16° 53' 59" W — Mega corer cast outboard station. |
| Bottom photography | 57° 2' 59" N 12° 31' 59" W — Camera cast outboard. |
| Bottom photography | 57° 24' 59" N 15° 43' 59" W — Camera cast outboard. |
| Data held at BODC | |
| Discrete samples | |
| 12 CTD frame plus rosette sampler | |
| 1 Instrument mooring |
