Vema cruise 25, leg 4 : plankton samples, April 1968

Abstract

This item contains data sheets and a folded world map from leg 4 of Vema cruise 25 from April 06-10. The map is approximately 35.5 x 53 inches and shows several plot points off the east coast of South America. Summary of route: the cruise stops at several station points off the coast of the southeast and mid-Atlantic regions of the United States. Detailed logs include the following sample data: ship-cruise, ship station, sample and number of samples, coordinates, date, local start and finish time, duration, wire angle, TDR no., corrected depth range, type tow, opening-closing, sampler type, ship speed, TSK flowmeter no. and reading, temperature, salinity. Logs also include the following environmental data: surface water temp., air temp., sky conditions, cloud cover, sea conditions, wave height, wind speed, water transparency, BT slide info, BS slide info, Hydro station no. and type, surface salinity sample no., core no., depth to bottom, other sample information, comments (successful tow? If not, why?), observer name. The back (verso) of the detailed logs record the following: Ship station, sample no., vol. H20 filtered, flowmeter calibration factor, displacement vol., wire angle data, hydro station data (depth, temp., salinity). Some detailed logs sheets include time-depth recorders (made by Benthos, Inc), which are approximately 3 inches in diameter. Each of these has a date, time, coordinates, ship name, recorder number, (and a place to record calibration).

Date Range

1968

Start Date

Apr 06, 1968

End Date

Apr 10, 1968

Access Information

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.

Topic

• Marine Biology
• Plankton
• Invertebrates
• Marine biologists
• Marine biology

Place

North Atlantic Ocean

Form/Genre

• Fieldbook record
• Field notes
• Logbooks
• Maps

Accession #

SIA Acc. 09-008

Collection name

Allan W. H. Bé papers, circa 1953-1969

Physical Description

1 logbook

Physical Location

Smithsonian Institution Archives

Sublocation

Box 5 Folder 2