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Glossary

Glossary of Terms

Survey, control

A survey that provides coordinates (horizontal or vertical) of points to which supplementary surveys are adjusted.

Shoreline

The intersection of a specified plane of water with the shore or beach (e.g. the high water shoreline would be the intersection of the plane of mean high water with the shore or beach). The line delineating the shoreline on nautical charts and surveys approximates the mean high water line.

Cobble (Cobblestone)

A rock fragment between 64 and 256 mm in diameter usually rounded.

Risk Analysis

Assessment of the total risk due to all possible environmental inputs and all possible mechanisms.

Hard Defenses

General term applied to impermeable coastal defense structures of concrete, timber, steel, masonry, etc, which reflect a high proportion of incident wave energy.

Salinity Gradient

Change in salinity which can be expressed in parts per thousand per foot.

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