Cloud amount/frequency, NITRATE and other data from MELVILLE and KNORR from 1987-11-24 to 1989-04-12 (NODC Accession 9200007)

The Conductivity, Temperature and Depth (CTD) and other data were collected as part of Distribution/Abundance of Marine Mammals in Gulf of Mexico (GULFCETI) project. Data was collected from Ships KNORR and MELVILLE. The data was collected over a period spanning from November 24, 1987 and April 12, 1989. Data for South Atlantic Ventilation Experiment (SAVE) legs 1-5 and HYDROS leg 4 was submitted in five tapes by Kristen M. Sanborn of Scripps Institution of Oceanography, La Jolla, CA.

This data set contains high-resolution data collected using CTD (conductivity-temperature-depth) instruments. As they are lowered and raised in the oceans, these electronic devices provide nearly continuous profiles of temperature, salinity and other parameters. Data values may be subject to averaging or filtering or obtained by interpolation and may be reported at depth intervals as fine as 1 m. Cruise and instrument information, position, date, time and sampling interval are reported for each station. Environmental data at the time of the cast (meteorological and sea surface conditions) may also be reported. The data record comprises values of temperature, salinity or conductivity, density (computed sigma-t) and possibly dissolved oxygen or transmissivity at specified depth or pressure levels. Data may be reported at either equally or unequally spaced depth or pressure intervals. Data has been processed and is available in F022-CTD-Hi Resolution file format of NODC.