Lateral Variation: 



See Variation, Lateral. 



Mass Movement: 



Mean Square Error: 

 Microstructure, Thermal : 



Normal Distribution : 



M 



Displacement of water by advection, ocean currents, or in- 

 ternal waves. 



See Error, Mean Square. 



Minute changes in the temperature of the ocean, in both lat- 

 eral and vertical directions. These minute changes do not 

 follow a predictable pattern, but are discontinuous and fluc- 

 tuating. 



N 



See Distribution, Normal. 



Occupation: 



Ocean Stability: 

 Ocean Variation: 

 Oceanography : 



(Refers to usage such as "occupation of Anchor Station.") 

 Maintenance of a fixed position in the ocean by a hydrographic 

 vessel. 



See Stability, Ocean. 



See Variation, Ocean. 



Oceanography embraces all studies pertaining to the sea and 

 integrates the knowledge gained in the marine sciences that 

 deal with such subjects as the ocean boundaries and bottom 

 topography, the physics and marine biology. 



Parameters : 



Plot, Simultaneous: 



Precision, Instrument: 



Pressure Sensing Element: 

 Probable Error: 

 Probable Value: 

 Profile: 



Profile, Bathythermograph : 



A third variable in terms of which the two coordinates x 

 and y can be expressed, rather than in terms of each other. 



Graph of two or more BTgms (single or average) on the same 

 coordinate system. These BTgms are not superimposed as 

 would be done by curve fitting techniques, but maintain their 

 specific reference values as individually recorded. 



Measure of the ability of an instrument to reproduce a read- 

 ing or set of readings. Equivalent to Reproducibility. This 

 bears no relation to accuracy, since the instrument may pre- 

 cisely reproduce an erroneous value. 



See Sensing Element, Pressure. 



See Error, Probable. 



See Value, Probable. 



Graph of temperature, depth, and time, using any two as 

 variables with the remainder as a parameter. Also called 

 charts, and plots. 



Plot of temperature versus depth, with a time parameter. 

 Normally called a bathythermograph slide, if uncorrected, 

 or a BTgm if corrected. Also called temperature profile. 



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