Cruise inventory
RRS James Clark Ross JR20040428 (AMT14, JR101)
Cruise summary report
| Cruise Info. | |
| Cruise period | 2004-04-28 — 2004-06-01 |
| Status | Completed |
| Port of departure | Stanley, Falkland Islands (Malvinas) |
| Port of return | Grimsby, United Kingdom |
| Purpose | Research |
| Objectives | AMT14 tracked across the southern subtropical gyre and equator, and an additional two days of ship-time made it possible to run a line of hydrographic stations on a more westerly route towards the centre of the northern subtropical gyre. The main purpose of work in this region was to determine the trophic state of the plankton ecosystem with respect to large scale patterns in the ambient concentrations and supply to the surface waters of inorganic nutrients and of dissolved organic matter.
1) To determine how the structure, functional properties and trophic status of the major planktonic ecosystems vary in space and time. 2) To determine the role of physical processes in controlling the rates of nutrient supply, including dissolved organic matter, to the planktonic ecosystem. 3) To determine the role of the atmosphere-ocean exchange and photo-degradation in the formation and fate of organic matter. |
| Chief scientist | Patrick M Holligan (University of Southampton School of Ocean and Earth Science) |
| Project | The Atlantic Meridional Transect (AMT) Programme |
| Coordinating body | NERC |
| Cruise report |  (2.93 MB) |
| Ocean/sea areas | |
| General | North Atlantic Ocean |
| Specific | Atlantic Ocean |
| Track charts | (0.03 MB) |
| Measurements | |
| Physical oceanography | |
| CTD stations | Quantity: number of stations = 89 Description: A number of CTD stations were completed during the cruise. |
| Biology and fisheries | |
| Zooplankton | Quantity: number of hauls = 1 Description: Plankton net hauls were made at various stages of the cruise. No. of hauls not noted. |
| Data held at BODC | |
| Discrete samples | |
| 94 Atmospheric air sampling pump | Concentrations of carboxylic acids and carboxylates in the atmosphere Inorganic phosphorus species concentrations in the atmosphere Sulphur species concentrations in the atmosphere Concentration of nitrogen species in the atmosphere Metal concentrations in the atmosphere Concentration of inorganic halogens in the atmosphere Concentration of organic matter in the atmosphere |
| 89 CTD frame plus rosette sampler | Microzooplankton non taxonomy-related biomass expressed as carbon per unit volume of the water column Particulate total and organic nitrogen concentrations in the water column Primary production in the water column Microzooplankton taxonomy-related biomass expressed as carbon per unit volume of the water column Plankton biomass expressed as carbon per unit volume of the water column Microzooplankton generic abundance in water bodies Phytoplankton taxonomic abundance in water bodies Phosphate concentration parameters in the water column Density of the water column Dissolved total or organic phosphorus concentration in the water column Visible waveband radiance and irradiance measurements in the water column Phytoplankton taxonomic biomass in water bodies Particulate total and organic carbon concentrations in the water column Urea concentration parameters in the water column Transmittance and attenuance of the water column Plankton abundance per unit volume of the water column Microzooplankton taxonomic abundance in water bodies Silicate concentration parameters in the water column Radioactivity in the water column Dissolved oxygen parameters in the water column Raw fluorometer output Ammonium concentration parameters in the water column Nitrate concentration parameters in the water column New production in water bodies Dissolved total and organic nitrogen concentrations in the water column Temperature of the water column Bacteria generic abundance in water bodies Carotenoid pigment concentrations in the water column Salinity of the water column Raw light meter output Organosulphur species concentration parameters in the water column Nitrite concentration parameters in the water column Chlorophyll pigment concentrations in the water column Oxygen production and respiration in the water column |
| 11 Rain water collector | Metadata parameters Precipitation chemistry |
| 298 Sample taken from ship's non-toxic supply | Phosphate concentration parameters in the water column Concentration of silicon species in the water column Ammonium concentration parameters in the water column Nitrate concentration parameters in the water column Carotenoid pigment concentrations in the water column Particulate inorganic carbon concentrations in the water column Organosulphur species concentration parameters in the water column Nitrite concentration parameters in the water column Chlorophyll pigment concentrations in the water column |
| 1 Surface water sample collected by a bucket on a rope | Organosulphur species concentration parameters in the water column |
| 53 Twin WP-2 net mounted on a frame | Metadata parameters Zooplankton non taxonomy-related biomass expressed as nitrogen per unit volume of the water column Zooplankton non taxonomy-related abundance per unit volume of the water column Zooplankton non taxonomy-related biomass expressed as carbon per unit volume of the water column |
