Temperature, salinity, sigma-T, and pressure profile CTD data from R/V MELVILLE and GLACIER in the Southern Oceans (> 60 degrees South) from 1986-03-04 to 1986-03-31 (NCEI Accession 9100082)

CTD quality was of primary concern. The data were printed out and plotted during the field program, allowing a near real-time check on instrument performance and data quality. The data were also recorded digitally for later processing.

The CTD used on the Glacier was calibrated prior to and following the cruise at the Northwest Regional Calibration Center in Bellevue, Washington. The CTDs on both vessels were calibrated regularly (typically every third or fourth cast) during the field program against temperature and salinity values obtained using rosette of Nansen sample bottles and deep sea reversing thermometers. The calibration data revealed a slight conductivity drift problem with the Glacier CTD system, and allowed development algorithm which was successfully used to correct the problem.

The final data are accurate to within O.Ol deg C re and 0.01 ppt in salinity, Resolution was better than O.OO5 deg C and 0.005 ppt in these variables. This text was taken from: Husby, D.M., and R.D. Muench, Hydrographic observations in the northwestern Weddell Sea marginal ice zone during March of 1986., NOAA Tech. Memo.

NOAA-TM-NMFS-SWFC-96, 1988.