TEMPORAL AND SPATIAL SHORELINE VARIABILTY OBSERVED WITH A X-BAND RADAR AT HASAKI COAST, JAPAN

摘要

Beach morphology is highly dynamic and it continuously changes over a wide range of spatial and temporal scales. This paper describes the use of X-band radar as a remote sensing technique to derive the spatial and temporal patterns of the daily measurements of shoreline positions which cover alongshore distance of about 3 km over the span of 9-years from 2005 to 2013. The spatial and temporal variability of the shoreline positions is split by Empirical Orthogonal Functions decomposition. The dominant modes of shoreline variability were correlated with the wave energy flux components estimated by SWAN model.