Method and apparatus for determining a Seegangsfeld in a wave tank descriptive parameters hydrographic

Method for determining a Seegangsfeld descriptive hydrographic parameters, the Seegangsfeld is generated in a body of water, especially in a wave tank, characterized in that a. stationed a plurality of reference points in the wave tank and the Cartesian world coordinates are determined, b. that at least a portion of the Seegangsfeldes is optically detected, c. that the detected optical signal sequence is converted into a signal sequence of digital electrical signals corresponding to pixel coordinates below, d. that image point coordinates of the reference points are determined from the signal sequence, e. that subsequently the stored signal sequences are transformed into Cartesian world coordinates and f. that the transformed signal sequences of a three-dimensional Fourier transformation are subjected to determine from the obtained three-dimensional spectrum of the Fourier transform of at least the flow and / or the water depth of the wave field.