AMT17
AMT17 was the sixth and final cruise of the
second phase of the AMT programme, with a focus on the subtropical
gyres of both the northern and southern hemispheres. The cruise
sailed from Glasgow in the UK to Port Elizabeth in South Africa,
from 15 October 2005 to 28 November 2005. The track extended
south west of the Azores into the subtropical gyre, and was similar
to that for AMT14.
The main objectives of AMT17 were to acquire a consistent set of
core measurements for comparison with data from earlier cruises,
and to carry out new experimental work on planktonic processes
relevant both to the AMT objectives and to future work at sea as
part of a new marine biogeochemical projects. The latter included
oxygen isotope measurements to assess the trophic balance within
surface waters, measurements of the turnover rates of organic
substrates by bacteria, and nutrient addition experiments to
identify limitin substrates for phytoplankton growth.
Image courtesy of
NEODAAS.