Cruise inventory
RRS James Clark Ross JR20000912 (AMT11, JR52, JR53)
Cruise summary report
| Cruise Info. | |
| Cruise period | 2000-09-12 — 2000-10-11 |
| Status | Completed |
| Port of departure | Grimsby, United Kingdom |
| Port of return | Montevideo, Uruguay |
| Purpose | Research |
| Objectives | The AMT11 cruise sailed from Grimsby in the United Kingdom on 12th September 2000, and ended in Montevideo, Uruguay on October 11th.
The long-term objectives of the AMT programme are stated as follows: 1) To better understand the links between biogeochemical processes, biogenic gas exchange, air-sea interactions and the effects on and the responses of oceanic ecosystems to climate change. 2) To investigate the functional roles of biological particles, and the processes that influence ocean colour in ecosystem dynamics. 3) To develop algorithms and the validation of remotely sensed observations of ocean colour. As previously the cruise was centred close to 20 degrees West for the southern transect in the northern hemisphere, the track then deviated to the east to carry out the BAS swath bathymetry research survey (refer to cruise report JR53), which was essentially a cruise within the AMT whose main objective was to survey an 80 km section of the Mid-Atlantic Ridge. Following this work, the cruise transect headed south-westerly past Ascension Island across the south Atlantic gyre, and on to Montevideo, Uruguay. During AMT11 and JR53, work was undertaken to test and develop the AutoFlux air-sea interaction system amd its assocaited prototype instrumentation. The system is intended to provide real-time air-sea fluxes of momentum, sensible heat, latent heat and CO2 in addition to meteorological parameters. Work on this system continued on the subsequent cruise from 11 Oct to 17 Oct 2000 between Montevideo Uruguay and Stanley Falkland Islands (JR52, JR20001013). |
| Chief scientist | E Malcolm S Woodward (Plymouth Marine Laboratory) |
| Project | AMT |
| Cruise report |  (8.11 MB) (4.75 MB) (2.44 MB) |
| Ocean/sea areas | |
| General | North Atlantic Ocean South Atlantic Ocean |
| Track charts | (0.04 MB) |
| Measurements | |
| Physical oceanography | |
| Water bottle stations | Quantity: number of samples = 1 Description: Regular sampling of non-toxic surface water. No. of smaples not noted. |
| CTD stations | Quantity: number of measurements = 1 Description: CTD equipment and the Sound Velocity Profiler were tested, to insure they were both operational. No. of test not noted. |
| Chemical oceanography | |
| Phosphate | Quantity: number of samples = 1 Description: Nutrient sampling took place. Nitrates, Nitrites, Silicate, Phosphate and Ammonia were all collected. No. of samples not noted. |
| Nitrate | Quantity: number of samples = 1 Description: Nutrient sampling took place. Nitrates, Nitrites, Silicate, Phosphate and Ammonia were all collected. No. of samples not noted. |
| Nitrite | Quantity: number of samples = 1 Description: Nutrient sampling took place. Nitrates, Nitrites, Silicate, Phosphate and Ammonia were all collected. No. of samples not noted. |
| Ammonia | Quantity: number of samples = 1 Description: Nutrient sampling took place. Nitrates, Nitrites, Silicate, Phosphate and Ammonia were all collected. No. of samples not noted. |
| Silicate | Quantity: number of samples = 1 Description: Nutrient sampling took place. Nitrates, Nitrites, Silicate, Phosphate and Ammonia were all collected. No. of samples not noted. |
| Biology and fisheries | |
| Phytoplankton | Quantity: number of samples = 1 Description: Phytoplankton samples were collected. No. of samples not noted. |
| Zooplankton | Quantity: number of samples = 1 Description: Zooplankton samples were collected. No. of samples not noted. |
| Gear research | Quantity: number of observations = 1 Description: At AMT11 station 03a, a sound velocity profiler was trialled |
| Geology and geophysics | |
| Multi-beam echosounding | Quantity: number of surveys = 1 Description: multibeam survey |
| Multi-beam echosounding | Quantity: number of measurements = 2 Description: TOPAS and EM120 data was collected throughout the cruise |
| Data held at BODC | |
| Discrete samples | |
| 46 CTD frame plus rosette sampler | Primary production in the water column Phosphate concentration parameters in the water column Density of the water column Visible waveband radiance and irradiance measurements in the water column Silicate concentration parameters 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 Temperature of the water column Bacterial production in the water column Bacteria generic abundance in water bodies Carotenoid pigment concentrations in the water column Salinity of the water column Bacteria taxonomic abundance in water bodies Raw light meter output Nitrite concentration parameters in the water column Chlorophyll pigment concentrations in the water column Oxygen production and respiration in the water column |
| 131 Sample taken from ship's non-toxic supply | Chlorophyll pigment concentrations in the water column |
