This unbound logbook contains detailed data logs for Eltanin cruise 15 from October 01 to December 04, 1964. Also included is a 14 page report written by Mike Smiles entitled "Plankton sampling program, Lamont Geological Observatory, Dr. Allan Be, cruise 15, USNS Eltanin, Oct. 1, 1964 - Dec. 4, 1964" summarizing the objectives, envelope containing plotting chart, methods, and findings from Eltanin cruise 15. Includes "night-day chart" and "millepore fliter sampling data sheets". Summary of route: They stop at various locations in the South Pacific and the Southern Ocean between approximately 54° s and 61° s, and 95° w and 150° w. The bulk of the collection consists of 3 different data sheets recording the following information: "opening and closing plankton tows", "Nansen bottles", ship and cruise no., station no., sample number, total no. samples, coordinates, date, local time, tow type, net in, net out, length of tow, wire angle at max depth, flowmeter reading, corrected depth range, flowmeter no., displacement vol., flowmeter calibration factor, corrected displ. vol., vol. H20 filtered, wire angle information, sky condition, sea condition, surface water temperature, BT slide data, BT temperatures, hydro station data, surface salinity, core no., secchi disk, comments (successful? If not why?), observer name. Some log sheets are accompanied by time-depth recorders, (made by Benthos, Inc), which are approximately 3 inches in diameter.
Many of SIA's holdings are located off-site, and advance notice is recommended to consult a collection. Please email the SIA Reference Team at osiaref@si.edu.
