SEASONAL BOTTOM CHANGES BOLINAS BAY, CALIFORNIA

J.W. Johnson

Abstract


Five bottom surveys over a period of a year were made in the north portion of Bolmas Bay, California Comparisons between successive surveys permitted an evaluation of the areas and depths of scour and fill with the seasons and were correlated with littoral current measurements Data for a 22-year period also were available on the position of the mean high-tide line over a limited length of beach These data showed a cyclic variation of the position of the high-tide line with the season with the most variation from year to year occurring during the spring months.

Keywords


seasonal bottom changes; Bolinas Bay; bottom changes

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