Testing the suitability of digital image matching using swell images for the determination of ocean wave power spectra

Abstract

The three‐dimensional evaluation of ocean wave photographies by means of digital image matching yields the same results as an analytical plotting of the same photos. This will be demonstrated on the basis of an example with deep water waves photos. The deducted power spectra from the three‐dimensional model are in agreement with the results from traditional swell measuring methods.

Keywords:

• digital image matching
• digital surface model
• ocean wave photography
• ocean wave power spectra
• swell power spectra
• swell statistics