Fractal dimension 



A topological term which refers to a dimension which which may be 

 either integer or fractional. The fractal dimension (D) is related 

 to the spectral slope (b) by b=-(5/2-D). Refer to Mandelbrot 

 (1982) for a complete discussion. 



Functional form 



Refers to the type of function or functions used as a model for the 

 distribution of data in a regression analysis. The term does not 

 apply to the calculated parameters used to describe a specific data 

 set. 



Fundamental frequency 



The lowest frequency treated in a Fourier analysis, corresponding 

 to the inverse of the length of data. 



HEBBLE 



High Energy Benthic Boundary Layer Experiment 



Isotropy 



Condition of having the same properties in all directions. 



Leakage 



In spectral analysis, the transfer of energy from one frequency 

 into other frequency bands. 



Linear-linear space 



A two-dimensional coordinate system in which both orthogonal axes 

 represent simple evenly-spaced scales. Usually called a rec- 

 tangular Cartesian coordinate system. 



Log-log space 



A two-dimensional coordinate system in which both orthogonal axes 

 are scaled by evenly spacing the logarithm of the linear scale. In 

 this study, all such transformations use base-ten logarithms. 



Magnetic anomaly 



The departure of the measured magnetic field from some low fre- 

 quency model. 



Markov process 



A stochastic process in which the conditional probability state is 

 unaffected by the historical state of the system. 



Multibeam sonar 



A bathymetric sounding system in which several discrete soundings 

 of the sea floor can be derived by a single discharge of acoustic 

 energy. 



NAVOCEANO 



United States Naval Oceanographic Office 



Non-parametric statistics 



Statistical theory in which the probability distribution of the 

 underlying data is not assumed. 



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