Nearshore Bathymetry Estimation Using Video Coastal Monitoring System  

Oleh:

Zikra, Muhammad

Jenis: Article from Journal - ilmiah nasional - terakreditasi DIKTI
Dalam koleksi: IPTEK: The Journal for Technology and Science vol. 19 no. 4 (Nov. 2008), page 109-116.
Topik: Video imagery; Wavenumber; Nearshore Bathymetry.

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: MM48.4 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

Lihat Detail Induk

Isi artikel

The invention of new digital technology of images from video camera systems now can provide information of the shoreward propagation of wave using pixel intensity time series that collectted at cross-shore array. from this video image of intensity data, we can measure the wave speed (or, equivalent to wave number). then the local water depth is inferred from linear wave theory dispersion relation equation. this paper describes the cross-spectral correlation approach scheme for investigating wave speed or equivalent wave number from video image data sets. the approach based on a pixel array analysis that utilizes a nonlinear inverse method. the solution includes error predictions that can be used to evaluate sample designs (data gaps) and the signal coherence. the technique was tested using 30 days of hourly data collected at egmond beach, netherlands. the result showed that the method have capability to derive wave number prediction from pixel intensity time series to support bathymetry estimation in near shore area through inversion of an appropriate wave dispersion model.

Opini Anda

Klik untuk menuliskan opini Anda tentang koleksi ini!

Kembali