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Journals and Conferences
A method is described for validating fast Fourier transforms (FFTs) based on the use of simple input fiinctions whose discrete Fourier transforms can be evaluated in closed form. Explicit analytical results are developed for one-dimensional and two-dimensional discrete Fourier transforms. The analytical results are easily generalized to higher dimensions.… (More)
Advances in bottom mapping technology, such as multibeam bathymetric survey systems, have made it possible to obtain detailed depth measurements over two horizontal dimensions and to develop statistical models that describe variability of small-scale ocean bottom roughness. This report investigates the nature of the two-dimensional power spectrum of the… (More)
Thermistor chain measurements of internal wave motions below the thermocline in the western North Atlantic have been spectrally decomposed in vertical-horizontal wave number space. The measured two-dimensional spectrum exhibits a systematic deviation from the corresponding Garrett and Munk model for internal wave spectra.