CONTENTS 



FIGURES — Continued 



Page 



29 San Luis Pass, 1965 36 



30 San Luis Pass thalwegs 37 



31 San Luis Pass depth changes, 1853-1933 38 



32 San Luis Pass tide gage locations 39 



33 Illustration of tide distortion into West Bay 42 



34 San Luis Pass tides and discharge, 24 June 1976 43 



35 Discharge and water level time histories, 20-23 July 1976 45 



36 Discharge and water level time histories, 3-6 May 1965 45 



37 Variation of dimensionless parameters with Keulegan's repletion 



coefficient, K 47 



38 Vjjj^^ versus A^ stability curves, San Luis Pass, Texas 48 



39 Shoreline change rates, upper Texas coast 49 



40 Galveston entrance minimum-width cross-sectional area profiles, 



1851-1908 50 



41 Galveston entrance minimum-width cross-sectional area profiles, 



1908-75 50 



42 Time history of minimum inlet width, area, and hydraulic radius, 



Galveston entrance, Texas 51 



43 Galveston Island shorelines, 1851-89 51 



44 Tide observations, Galveston Bay, 1852-1940 52 



45 Galveston Island shorelines , 1889-1975 54 



46 Galveston entrance bathymetric changes, 1867-88 54 



47 Galveston entrance bathymetric changes , 1867-1908 55 



48 Galveston entrance bathymetric changes , 1908-33 55 



49 Galveston entrance bathymetric changes , 1933-65 56 



50 Galveston entrance bathymetric changes , 1968-75 56 



51 Bathymetry and nearshore changes, Galveston Harbor 58 



52 Galveston entrance channel bathymetric changes, 1890 to 1940-41 60 



53 Tide observations, Galveston Bay, 1940-78 61 



54 Galveston Bay tidal range distribution, November 1936 62 



55 Galveston Bay tidal range distribution, June 1937 62 



56 Galveston Bay tidal range ratio distribution, average annual, 1974.... 63 



57 Galveston Bay monthly mean tidal range variability, 1974 63 



58 Galveston Bay monthly mean water level variability, 1974 64 



