Resources

RRS James Clark Ross JR20000412 (AMT10, JR49)

Cruise summary report

Cruise Info. 
Ship name (ship code)RRS James Clark Ross (74JC)
Cruise identifierJR20000412 (AMT10, JR49)
Cruise period2000-04-12 — 2000-05-08
StatusCompleted
Port of departureMontevideo, Uruguay
Port of returnGrimsby, United Kingdom
ObjectivesThe tenth Atlantic Meridional Transect (AMT10) took place 12th April to 8th May 2000. There are three objectives of the AMT programme. The first is to derive an improved understanding of the links between biogeochemical processes, biogenic gas exchange, air-sea interactions, and the effects on, and responses of, oceanic ecosystems and climate change. The second is to investigate the functional roles of biological particles and processes that influence ocean colour in ecosystem dynamics. The third is the algorithm development and validation of remotely sensed observations of ocean colour. During AMT10 the ship was constrained in her ability to maintain station in any but the lightest winds, and the weather conditions were not always favourable. Nevertheless, the cruise produced a near-continuous set of surface underway data, and 23 stations during which physical, biological and chemical properties of the euphotic zone (depths 0-250m) were sampled.
Chief scientistChris Gallienne (Plymouth Marine Laboratory)
ProjectAMT
Cruise reportRRS James Clark Ross JR20000412 (AMT10, JR49) cruise report jr_amt10.pdf (7.73 MB) 
Ocean/sea areas 
GeneralNorth Atlantic Ocean
South Atlantic Ocean
Track chartsRRS James Clark Ross JR20000412 (AMT10, JR49) cruise track — jr_amt10track.pdf (0.25 MB) 
Measurements 
Physical oceanography 
Water bottle stationsDescription: Sampling of surface water using uncontaminated sea water. No. of samples not noted.
CTD stationsDescription: CTD sensors were deployed. No. of samples not noted.
Subsurface temperature and salinity measurementsDescription: CTD sensors were deployed. No. of samples not noted.
Optics (eg underwater light levels)Description: Optical profiles were made during the cruise. No. of samples not noted.
Biology and fisheries 
ZooplanktonDescription: Zooplankton samples were collected No. of samples not noted.
Data held at BODC Get data
Discrete samples 
40  CTD frame plus rosette samplerDissolved total and organic nitrogen concentrations in the water column
Particulate total and organic carbon concentrations in the water column
Particulate total and organic nitrogen concentrations in the water column
Density of the water column
Dissolved total or organic phosphorus concentration in the water column
Stable isotopes in water bodies
Chlorophyll pigment concentrations in water bodies
Raw fluorometer output
Silicate concentration parameters in the water column
Salinity of the water column
Carotenoid and flavenoid pigment concentrations in water bodies
Nitrate concentration parameters in the water column
Temperature of the water column
Dissolved oxygen parameters in the water column
Nitrite concentration parameters in the water column
Phosphate concentration parameters in the water column
Dissolved concentration parameters for other gases in the water column
503  Sample taken from ship's non-toxic supplyParticulate total and organic carbon concentrations in the water column
Particulate total and organic nitrogen concentrations in the water column
Stable isotopes in water bodies
Chlorophyll pigment concentrations in water bodies
Carotenoid and flavenoid pigment concentrations in water bodies
Inorganic peroxides in water bodies
Dissolved concentration parameters for other gases in the water column
15  Water bottle hydrocastDissolved concentration parameters for other gases in the water column