High-resolution CTD/STD data from LITTLE DIPPER and RV Alpha Helix in the Bering Sea and Gulf of Alaska from 1994-06-27 to 1995-01-06 (NCEI Accession 9500031)

The Conductivity, Temperature and Depth (CTD) and other data were collected in Gulf of Alaska and Bering Sea as part of Inner SHelf Transfer and recycling (ISHTAR) project. Data was collected from Ships ALPHA HELIX and LITTLE DIPPER. The data was collected over a period spanning from June 27, 1994 to January 6, 1995. 7 sets of CTD data collected from seabird from 13 stations was received by NODC from Dr. C. Peter McRoy of University of Alaska, Institute of Marine Science, Fairbanks, AK via FTP. Data is in F022-CTD-Hi Resolution file format of NODC.

F022 High-resolution CTD data is collected from high resolution (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.