Abstract
Initial results from a deployment of the SUV-6 ultraviolet spectrophotometer, integrated with the SeaSoar towed vehicle, are presented. The innovative, combined system measures nitrate concentration at high spatial resolution (4 m vertically, 5 km horizontally), high sensitivity (0.2 μM), and concomitantly with temperature, salinity, and dissolved oxygen. The authors demonstrate that this approach constitutes a powerful new tool for quantifying the role of mesoscale and submesoscale vertical nutrient fluxes to the euphotic zone, using measurements from a high-resolution survey of an eddy dipole in the Iceland Basin during the summer of 2007.
Corresponding author address: Rosalind Pidcock, National Oceanography Centre, Southampton (NOCS), University of Southampton Waterfront Campus, European Way, Southampton, SO14 3ZH, United Kingdom. Email: remp103@noc.soton.ac.uk