Comparison of acoustic backscatter collected in 1996 to backscatter co

Comparison of acoustic backscatter collected in 1996 to backscatter collected in 2011.

Detailed Description

 

Comparison of acoustic backscatter collected in 1996 to backscatter collected in 2011.  Dashed lines depict features on 1996 backscatter and are transposed onto the 2011 backscatter to show change.  A) Acoustic backscatter depicting a series of ~50-cm-high bedforms that have migrated ~75 m to the west. B) Acoustic backscatter depicting a ~1-m-high scarp on seaward flank of low backscatter shoreface-attached ridge. Backscatter comparison shows the feature has migrated ~100 m to the north.  C) Map showing acoustic backscatter mosaic and the location of A and B.  Change detected in comparison of acoustic backscatter collected in 1996 and 2011 is also displayed; red arrows indicate bedform migration direction and yellow arrows indicate migration of seaward flank of low backscatter shoreface-attached ridges and, in places, the toe of the beach platform. 

Details

Image Dimensions: 892 x 800

Date Taken:

Location Taken: US