RV "Poseidon" Cruise 314, 11 Jul - 23 Jul 2004. The 'Extended Ellett Line’, Scotland - Rockall - Iceland time series

This report describes R/V Poseidon Cruise 314, designed to repeat the hydrographic section from Scotland to Rockall, called the Ellett Line, and its extension to Iceland. 73 stations were worked with CTD and lowered ADCP and sampled for chemical (macronutrients and dissolved oxygen) and biological (chlorophyll a) analyses. Additional samples for analysis of dissolved iron, pigments and plankton physiology were taken at a few selected sites. Underway measurements of depth, meteorology, surface water properties and currents were made. The weather during the cruise was good, with no time lost to the elements and more than the expected number of stations worked. Conversely data logging and processing suffered from so many problems that it was not possible to edit and calibrate the data during the cruise.