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Detection and Characterization of Small Water Bodies

The 48 contiguous United States contain at least 2.6 x 10 small water bodies (> 600-900 m), and possibly as many as 9 x 10 (> 25 m) (Smith et al. 2002). These water bodies are termed ‘small’ not only because of their size distributions, but also to emphasize the distinction between the water bodies discussed here and the much smaller number (a few percent of the total at most) of relatively well-documented lakes, reservoirs, and large impoundments found in the available US databases of water bodies.