Atlantic Ocean (transect between the UK and the Falkland Islands, South Africa or South America)

Concentration of nitrogen species in the atmosphere; Ammonium and ammonia concentration parameters in water bodies; Bacteria taxonomic abundance in water bodies; Bacteria non taxonomy-related biomass expressed as carbon per unit volume of the water column; Bacteria generic abundance in water bodies; Air pressure; Air temperature; Atmospheric humidity; Particulate inorganic carbon concentrations in the water column; Variable fluorescence parameters; Electrical conductivity of the water column; Particulate total and organic carbon concentrations in the water column; Chlorophyll pigment concentrations in water bodies; Organosulphur and organoselenium species concentration parameters in water bodies; Dissolved organic carbon concentration in the water column; Dissolved oxygen parameters in the water column; Wind strength and direction; Fish non taxonomy-related abundance per unit volume of the water column; Raw fluorometer output; Oxygen production and respiration in the water column; Inorganic peroxides in water bodies; Stable isotopes in the atmosphere; Vertical velocity of the water column (currents); Metal concentrations in the atmosphere; Dissolved metal concentrations in the water column; Total metal concentrations in water bodies; Microzooplankton non taxonomy-related biomass expressed as carbon per unit volume of the water column; Microzooplankton generic abundance in water bodies; Particulate total and organic nitrogen concentrations in the water column; Nitrate concentration parameters in the water column; Optical backscatter; Raw oxygen sensor output; Phytoplankton taxonomic abundance in water bodies; Inorganic phosphorus species concentrations in the atmosphere; Phosphate concentration parameters in the water column; Light absorption in the water column; Primary production in the water column; Salinity of the water column; Plankton abundance per unit volume of the water column; Ocean colour and earth-leaving visible waveband spectral radiation; Horizontal velocity of the water column (currents); Precipitation chemistry; Dissolved concentration parameters for other gases in the water column; Inorganic silicon species concentrations in the atmosphere; Density of the water column; Dissolved total and organic nitrogen concentrations in the water column; Raw suspended particulate material concentration sensor output; Bacterial production in the water column; Urea concentration parameters in the water column; Radioactivity in water bodies; Stable isotopes in water bodies; Zooplankton taxonomy-related abundance per unit volume of the water column; Metal ligand parameters in the water column; Zooplankton non taxonomy-related biomass expressed as carbon per unit volume of the water column; 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; Phaeopigment concentrations in the water column; Phytoplankton generic abundance in water bodies; Metadata parameters; Concentration of suspended particulate material in the water column; Nitrite concentration parameters in the water column; Nitrification and denitrification rates in water bodies; Concentration of organic matter in the atmosphere; Organic sulphur compound dynamics in the water column; Solar Radiation; Concentrations of carboxylic acids and carboxylates in the atmosphere; Plankton biomass expressed as carbon per unit volume of the water column; Particulate amino acid concentrations in the water column; Concentration of alkanes in the water column; Sulphur species concentrations in the atmosphere; Sound velocity and travel time in the water column; Total dissolved inorganic carbon (TCO2) concentration in the water column; Alkalinity, acidity and pH of the water column; Concentration of inorganic halogens in the atmosphere; Visible waveband radiance and irradiance measurements in the atmosphere; Visible waveband radiance and irradiance measurements in the water column; Transmittance and attenuance of the water column; Concentration of other organic contaminants in the atmosphere; Concentration of silicon species in the water column; Silicate concentration parameters in the water column; Raw light meter output; Microzooplankton taxonomy-related biomass expressed as carbon per unit volume of the water column; Microzooplankton taxonomic abundance in water bodies; Bathymetry and Elevation; Carotenoid and flavenoid pigment concentrations in water bodies; Phytoplankton taxonomic biomass in water bodies; Dissolved total or organic phosphorus concentration in the water column; Temperature of the water column

Anemometers; meteorological packages; sea level recorders; fluorometers; radiometers; bathythermographs; thermosalinographs; water temperature sensor; single-beam echosounders; multi-beam echosounders; plankton nets; discrete water samplers; accelerometers; Atmospheric chemistry remote sensors; salinity sensor; platform attitude sensors; flow meters; elemental analysers; gas chromatographs; colorimeters; autoanalysers; mass spectrometers; spectrophotometers; cavity enhanced absorption spectrometers; water pressure sensors; acoustic backscatter sensors; transmissometers; CTD; current profilers; precipitation samplers; dissolved gas sensors; active fluorometers; discrete air samplers

The dataset comprises hydrographic profiles (temperature, salinity, oxygen, fluorometer, transmissometer, irradiance) and along track measurements (bathymetry, surface meteorology, sea surface hydrography), with discrete measurements including water chemistry (organic and inorganic nutrients, particulate organic carbon and nitrogen, dissolved gases, trace metals), biology (phytoplankton, zooplankton, primary production, community respiration, chlorophyll, pigments) and atmospheric particulates (major ions, organics and trace metals). Data have been collected from meridional transects of the Atlantic Ocean (between the UK and the Falkland Islands, South Africa or South America) from 1995 to the present day. The Atlantic Meridional Transect (AMT) programme aims to study the factors determining the ecological and biogeochemical variability of planktonic ecosystems in the tropical and temperate Atlantic Ocean, and their links to atmospheric processes. The majority of the data are available to academia for re-use and re-purpose but data from recent cruises may be subject to a moratorium which allows first use for data originators. The AMT is coordinated by Andy Rees (AMT Principal Investigator) and Miss Dawn Ashby (AMT Project Officer) at the Plymouth Marine Laboratory (PML) in conjunction with the National Oceanography Centre. Since its inception the programme has involved researchers from several different countries and has acted as a platform for national and international collaboration. Data are managed by the British Oceanographic Data Centre.

Andrew P. Rees, Philip D. Nightingale, Alex J. Poulton, Timothy J. Smyth, Glen A. Tarran, Gavin H. Tilstone (2017) The Atlantic Meridional Transect programme (1995-2016), Progress in Oceanography

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