Hydrography of the Iceland-Faeroe Ridge during March 1992: environmental data during NORDIC 92

Abstract

This memorandum documents an extensive collection of CTD and XBT data made on the Iceland-Faeroe Ridge in March, 1992 by the SACLANTCEN vessel Alliance and the FWG vessel Planet as part of a larger operation called NORDIC 92. A summary of data collection and processing procedures is given, and some of the more striking oceanographic features are noted. The main content of the report, however, consists of a series of appendices in which the data is displayed in various ways. XBTs were used to provide increased resolution between CTD stations or in place of them when weather conditions precluded CTD work. In the data displays, CTD and XBT measurements have been merged by assigning to the XBTs salinities derived from nearby CTD stations.