Over the past few decades, large changes have occurred 
in and around Houston and Galveston Bay.  Most obvious 
is the urban and suburban development.  This, in turn, 
changes the rates and locations of fresh water runoff 
into the bay.  Dredging in Galveston Bay and the 
construction of the Texas CityDike have changed the 
current patterns (and erosion/depositional patterns) 
in the bay.  Subsidence has changed the shoreline and 
nearshore ecosystems.  Effects of many of these changes 
can be seen in the photographs by mapping patterns 
both on land and in the water.  The ship channel and new 
suburban developments around NASA - Clear Lake are visible.
(STS055-71-040)