TEST RESULTS OF THE PLESSEY MODEL 9040 S/T/D ENVIRONMENTAL PROFILING SYSTEM
During January 1972, 17 STD casts were taken under controlled conditions using Plessey's Model 9040 S/T/D Environmental Profiling System (STD) in an attempt to determine how the temperature and/or salinity corrections vary with depth. The data indicated that the differences between the quality control salinity values and the salinity values obtaines from the STD system varies by less than 0.02 ppt from the surface down to 3000 meters. However, this correction value was offset from zero by about 0.05 ppt. The temperature correction varied considerably with depth, (about 0.07 deg C), these variations being outside of the manufacturer's specifications. After applying a correction published by the manufacturer, differences between actual depth and recorded depth were generally within instrument accuracy.
United States Coast GuardOceanographic Unit
Washington, DC United States 20590
- Publication Date: 1975-5
- Pagination: 20 p.
- TRT Terms: Calibration; Depth; Equipment; Oceanography; Oceans; Salinity; Standard deviation; Thermoclines; Values in measurement; Variables
- Uncontrolled Terms: Correction (Mathematics); Ocean models
- Old TRIS Terms: Ocean environments; Oceanographic data; Oceanographic equipment; Variations
- Subject Areas: Geotechnology;
- Accession Number: 00093580
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: CGOU-TR-3 Tech. Rpt.
- Files: NTIS
- Created Date: Feb 4 1976 12:00AM