Test Results of the Plessey Model 9040 S/T/D Environmental Profiling System.
COAST GUARD WASHINGTON D C OCEANOGRAPHIC UNIT
Pagination or Media Count:
During January 1972, 17 STD casts were taken under controlled conditions using Plesseys Model 9040 STD Environmental Profiling System STD in an attempt to determine how the temperature andor 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 manufacturers specifications. After applying a correction published by the manufacturer, differences between actual depth and recorded depth were generally within instrument accuracy.
- Physical and Dynamic Oceanography