. The effect of structures and lake level on bluff and shore erosion in Berrien County, Michigan, 1970-74 . Bluff Recession I I I I I ' I I I I -20 -30 70 80 90 100 Slotion Figure 8. Rates of bluff recession and shoreline change along reach A from 19 November 1970 to 23 November 1974. Table 5. Summary of bluff. shore, and beach data for reach A (57 stations). Date Bluff recession | Shoreline change Beach width' Period length Rate 0 Max. Rate o Max. 0 Change (m) (m/yr) (ra/yr) (ni/yr) Cm} (m/yr) (m/yr) (m/yr) (m) (m) (m) (mo.) 19 Nov. 1970 5 15 Apr. 1


. The effect of structures and lake level on bluff and shore erosion in Berrien County, Michigan, 1970-74 . Bluff Recession I I I I I ' I I I I -20 -30 70 80 90 100 Slotion Figure 8. Rates of bluff recession and shoreline change along reach A from 19 November 1970 to 23 November 1974. Table 5. Summary of bluff. shore, and beach data for reach A (57 stations). Date Bluff recession | Shoreline change Beach width' Period length Rate 0 Max. Rate o Max. 0 Change (m) (m/yr) (ra/yr) (ni/yr) Cm} (m/yr) (m/yr) (m/yr) (m) (m) (m) (mo.) 19 Nov. 1970 5 15 Apr. 1971 7 16 Nov. 1971 5 18 Apr. 1972 7 16 Nov. 1972 4 20 Mar. 1973 8 20 Nov. 1973 6 20 May 1974 6 23 Nov. 1974 19 Nov. 1970 12 16 Nov. 1971 12 16 Nov. 1972 12 20 Nov. 1973 12 23 Nov. 19 74 19 Nov. 1970 to 48 23 Nov. 1974 'Beach width adjusted to lake level ( meters, IGLD). 23


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