RRS Discovery D233
Cruise summary report
|Ship name (ship code)||RRS Discovery (74E3)|
|Cruise period||1998-04-23 — 1998-06-01|
|Port of departure||Santa Cruz de Tenerife, Spain|
|Port of return||Fairlie, United Kingdom|
|Objectives||1. To repeat a section, notionally along 20W in the Northeast Atlantic, parts of which were occupied previously in 1957, 1973, 1983, 1988 and 1991, in order to examine the decadal scale variability in the eastern Atlantic over the last 40 years.
2. To establish the sources and sinks of halocarbons in subtropical and subpolar waters during spring bloom conditions.
3. To study the spreading, mixing and ventilation rates of Labrador Sea Water, Mediterranean Water, and waters of Southern Ocean origin (Antarctic Intermediate Water and Antarctic Bottom Water) which extend into the Northeast Atlantic.
4. To make a detailed study of the water masses in the Rockall Trough, incorporating the Ellett Line section, with particular emphasis on their circulation/recirculation patterns.
5. To contribute to the WOCE baseline survey of the North Atlantic.
|Chief scientist||Denise Smythe-Wright (Southampton Oceanography Centre)|
|Cruise report||(2.37 MB)|
|General||North Atlantic Ocean|
|Track charts||(0.10 MB)|
|Bathythermograph||Quantity: number of profiles = 35|
|CTD stations||Quantity: number of profiles = 139|
|Current profiler (eg ADCP)|
|Data held at BODC||Get data|
|140 CTD frame plus rosette sampler||Reference numbers|
Transmittance and attenuance of the water column
Temperature of the water column
Dissolved oxygen parameters in the water column
Phosphate concentration parameters in the water column
Salinity of the water column
Silicate concentration parameters in the water column
Density of the water column
Chlorofluorocarbon concentrations in the water column
Nitrate concentration parameters in the water column
Phaeopigment concentrations in the water column
Alkalinity, acidity and pH of the water column
Chlorophyll pigment concentrations in water bodies
|35 Expendable Bathythermograph||Temperature of the water column|
|96 Sample taken from ship's non-toxic supply||Salinity of the water column|
|26839 Shipborne Acoustic Doppler Current Profile|