About AMT

The main deliverable of AMT is an unique time series (1995-2012) of spatially extensive and internally consistent observations on the structure and biogeochemical properties of planktonic ecosystems in the Atlantic Ocean that are required to validate models addressing questions related to the global carbon cycle. Data sets include:

  • Vertical CTD profiles and continuous underway data
  • Optical characteristics of the water column
  • Biogeochemical measurements on water samples including nutrients, pigments, dissolved gases and particulate carbon and nitrogen
  • Primary, new production and respiration measurements

The programme received funding through NERC's Oceans 2025 programme as a Sustained Observatory within Theme 10, which is coordinated and led by Plymouth Marine Laboratory in collaboration with the National Oceanography Centre. This has secured the continuation of these measurements along the transect for 5 cruises from 2008 to 2012.

Since 1995 AMT has been scientifically led and coordinated by the Plymouth Marine Laboratory. This has involved a total of 21 research cruises with over 200 scientists from 15 countries, 200 refereed publications and 70 PhD theses. AMT continues to contribute to science and policy development including the social and economic understanding of the marine environment and services it delivers.