14.5 



JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 



MONTH 



Figure 27. Monthly water level changes at Juneau, AK. High water typically occurs 

 October-December. Data from Lyies, Hickman, and Debaugh (1988) 



MEAN: 1908 -1986 



JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 



MONTH 



Figure 28. Monthly water level changes at Galveston, TX. High water occurs twice per 

 year: April and September-November 



70 



Chapter 4 Investigation of Environmental Factors 



