Barrier Evolution | Shoreline Behavior | Beach Monitoring | Bathymetric Change
Methodology | Beach Profiles | CLAMMER | Coastal Profiling System | Sediment Samples | Results
Beach Morphology Monitoring Program
Summary Plot 5
Nearshore beach profiles for each of the 4 sub-cells within the CRLC collected in 1999. These profiles reveal the variability in morphology observed among the four sub-cells. The slope for these profiles is measured from the 2.0-m elevation contour (NAVD 88) offshore to the -10.0-m contour. The North Beach profile (km 137) is relatively low sloping (0.0055, 1:181) and features 3 sandbars. The profile collected in the Grayland Plains (km 102) shows small sandbar features and a much steeper slope (0.0078, 1:128). The Long Beach profile (km 69) has four sandbars with a larger outer sandbar (approximately 3.0-m high) than each of the other three profiles. The slope of the Long Beach profile is 0.0065 (1:153). The Clatsop Plains profile (km 22) has a distinct outer bar approximately 2.0-m in height and a slope similar to that of the Grayland profile, 0.0080 (1:125).
List of beach monitoring summary plots. Select a summary plot to link to an on-line version or download an Adobe Acrobat version for printing.
-
Summary plot 1: Beach profile elevation change along the Columbia River littoral cell: summer 1997-winter 1998 and summer 1997-summer 1998 (printable version).
-
Summary plot 2: Horizontal beach profile change along the Columbia River littoral cell: summer 1997-winter 1998 and summer 1997-summer 1998 (printable version).
-
Summary plot 3: Seasonal to annual horizontal change of the 2.0-m contour line. The mean position change of the 2.0-m contour has been calculated for 15 of the 16 surface map sites (printable version).
-
Summary plot 4: Seasonal variability of the 2.0-m contour line (printable version).
-
Summary plot 5: Nearshore beach profiles for each of the 4 sub-cells within the CRLC collected in 1999 (printable version).
-
Summary plot 6: Beach state parameters (beach slope, sediment size, dune crest elevation) (printable version).
