BODC Cruise Metadata Report for RRS Charles Darwin (74AB) cruise CD90
Introduction
This report collates information from the BODC cruise inventory and oceanographic databases. It presents
- Cruise Inventory Information
- A summary of BODC data holdings for the cruise from the
- References - including cruise tracks and cruise reports
Cruise Inventory Information
| Long name | RRS Charles Darwin (74AB) cruise CD90 |
|---|---|
| Short name | CD90 |
| Objectives and Narrative |
To carry out sea-trials of the new BRIDGE instrument for the detection, investigation and sampling of hydrothermal flumes - "BRIDGET".
Main aims: 1. To pressure-test "BRIDGET" to >3000m water depth. 2. To carry out sensor testing in a known hydrothermal area - the "RAINBOW" vent-field, 36deg 15'N, Mid-Atlantic Ridge. 3. To assess the manoeuvrability of the instrument when towed astern of the ship from the deep-tow conducting cable, in a transponder-navigated grid. 4. To obtain inter-calibration within a known hydrothermal plume between "BRIDGET", the RVS CTD-netherlometer-transmissometer array and the OSU "ZAPS" instrumented sled. |
| Ship | RRS Charles Darwin |
| Departure Port | Ponta Delgada, Portugal |
| Departure Date | 1994-09-17 |
| Arrival Port | Ponta Delgada, Portugal |
| Arrival Date | 1994-09-27 |
| Principal Scientist(s) | Christopher R German (Institute of Oceanographic Sciences Deacon Laboratory) |
| Responsible Organisation | Institute of Oceanographic Sciences Deacon Laboratory |
| Associated Project(s) | "BRIDGE" Community Research Project |
| IHB Sea Areas Visited | North Atlantic Ocean |
| Marsden Squares Visited | 112 |
| Work Area Description | "South Amar" and "Amar" segments, 36deg N, mid-Atlantic Ridge (South of Azores triple-junction) |
| Work Area Bounding Polygon | 30N,40W; 40N,40W; 40N,30W; 30N,30W; 30N,40W |
| Southern Limit | 30N |
| Northern Limit | 40N |
| Western Limit | 40W |
| Eastern Limit | 30W |
Cruise Inventory Datasets
| Physical oceanography | |
|---|---|
| Bathythermograph |
Quantity:
number of profiles =
16
Description: XBT drops with T5 and T7 probes. All data relayed to RN Hydrographic Office via RVS Barry. |
| CTD stations |
Quantity:
number of stations =
6
Description: Vertical profiles and tow-yo stations of the OSU "ZAPS-SLED" (CTD-nephelometer-transmissometer-ZAPS in situ Mn probe) in the "RAINBOW" hydrothermal plume. |
| CTD stations |
Quantity:
number of stations =
5
Description: Deep casts using NB Mk III cTD with Seatech transmissometer and Chelsea Instrument Mk II nephelometer. Data collected on down-casts. |
| CTD stations |
Quantity:
number of deployments =
6
Description: "BRIDGET" lowerings/tow-yos with CTD-nephelometer-transmissometer array through "RAINBOW" hydrothermal area. |
| Transparency (eg transmissometer) |
Quantity:
number of stations =
5
Description: Deep casts using NB Mk III cTD with Seatech transmissometer and Chelsea Instrument Mk II nephelometer. Data collected on down-casts. |
| Transparency (eg transmissometer) |
Quantity:
number of deployments =
6
Description: "BRIDGET" lowerings/tow-yos with CTD-nephelometer-transmissometer array through "RAINBOW" hydrothermal area. |
| Transparency (eg transmissometer) |
Quantity:
number of stations =
6
Description: Vertical profiles and tow-yo stations of the OSU "ZAPS-SLED" (CTD-nephelometer-transmissometer-ZAPS in situ Mn probe) in the "RAINBOW" hydrothermal plume. |
| Water bottle stations |
Quantity:
number of profiles =
3
Description: General oceanics multi-sampler rosette with 12 x 2.5 litre Niskin bottles employed to collect 3 x 12-bottle sample suites for TDMn analysis during "BRIDGET" tow-yos through the "RAINBOW" hydrothermal plume. |
| Water bottle stations |
Quantity:
number of stations =
2
Description: General oceanics multi-sampler rosette with 12 x 2.5 litre rosette used to collect 2 x 12 bottle profiles for TDMn analysis during CTD up-casts. |
| Chemical oceanography | |
| Other chemical oceanographic measurements |
Quantity:
number of stations =
6
Description: Vertical profiles and tow-yo stations of the OSU "ZAPS-SLED" (CTD-nephelometer-transmissometer-ZAPS in situ Mn probe) in the "RAINBOW" hydrothermal plume. |
| Trace elements |
Quantity:
number of stations =
2
Description: General oceanics multi-sampler rosette with 12 x 2.5 litre rosette used to collect 2 x 12 bottle profiles for TDMn analysis during CTD up-casts. |
| Trace elements |
Quantity:
number of profiles =
3
Description: General oceanics multi-sampler rosette with 12 x 2.5 litre Niskin bottles employed to collect 3 x 12-bottle sample suites for TDMn analysis during "BRIDGET" tow-yos through the "RAINBOW" hydrothermal plume. |
Cruise Inventory Mooring/Buoy Operations
No information on datasets is currently available
Summary of BODC Data Holdings for the Cruise
National Oceanographic Database
Summary
| # Series | Instrument Description | Parameters |
|---|---|---|
| 5 | CTD/STD cast |
Salinity of the water column Temperature of the water column Vertical spatial coordinates |
Note: Parameter terms are taken from the BODC Parameter Discovery Vocabulary XML (SKOS)
Full List
| BODC Reference | Instrument Description | Date/Time | Location | |
|---|---|---|---|---|
| 474642 | CTD/STD cast | 1994-09-18 12:20Z | 36° 22' N, 29° 40' W | Click for more |
| 474654 | CTD/STD cast | 1994-09-20 09:02Z | 36° 16' N, 33° 52' W | Click for more |
| 474666 | CTD/STD cast | 1994-09-20 13:53Z | 36° 15' N, 33° 53' W | Click for more |
| 474678 | CTD/STD cast | 1994-09-22 16:48Z | 36° 15' N, 33° 53' W | Click for more |
| 474691 | CTD/STD cast | 1994-09-22 18:48Z | 36° 16' N, 33° 53' W | Click for more |
Project Database
No data currently held for this cruise in the BODC Project Database
