u 



Uncorrected Value : 

 Uptrace: 



See Value, Uncorrected. 

 See Trace, Up. 



Value, Absolute : 



Value, Actual : 



Value, Average: 



Value, Probable : 



Value, Reference: 



Value, True: 

 Value, Uncorrected : 



Value, Zero Depth: 

 Variance : 



Variations : 



Variation, Cyclical : 



Variation, Lateral: 

 Variation in Set: 



Variation, Ocean: 

 Variability, Ocean: 



Math Def.: Value without regard as to sign. 

 General: True value; correct value to the limits of high ac- 

 curacy when the true value is impossible to determine. 



Representative of the thermal state in reference coordinates 

 corresponding to the standard temperature scale as opposed 

 to arbitrary reference coordinates. 



Arithmetic means of a series of measurements, all of which 

 have equal weight or are properly weighed and handled 

 accordingly. 



Average value which must closely resemble the true value. 

 It can be stated that the Probable Value is the value which 

 does not exceed the true value by the Probable Error. 



Magnitude as related to a particular reference origin. When 

 standard origins are used, the reference and actual value 

 are identical. 



Value without error. Value by definition or standard. 



Values of BTgms as read from a glass slide with grid placed 

 in last calibrated position without application of set cor- 

 rection factors. 



See Reading, Zero Depth. 



Measure of the change with time or direction of an average 

 or standard deviation. 



Small random changes in measurements due either to true 

 changes in the ocean parameters or in the measuring instru- 

 ments themselves. 



Harmonic variation of temperature or displacement due to 

 internal waves. 



Change in conditions in a horizontal traverse. 



Change in magnitude of set which cannot be accounted or 

 allowed for. Indeterminate portion of the determinate error 

 of set. 



See Variability, Ocean. 



Indeterminate variations or changes in the ocean with time 

 or direction which cannot be accounted for in magnitude 

 and sign. 



Zero Depth Value: 

 Zero Depth Reading: 



See Reading, Zero Depth. 

 See Reading, Zero Depth. 



46 



