EM 1110-2-1100 (Change 1)
31 Jul 03
EQUATORIAL TIDES
Tides occurring semimonthly as the result of the moon being over the equator. At these times the tendency of the
moon to produce a DIURNAL INEQUALITY in the tide is at a minimum.
EROSION
The wearing away of land by the action of natural forces. On a beach, the carrying away of beach material by wave
action, tidal currents, littoral currents, or by deflation.
ESCARPMENT
A more or less continuous line of cliffs or steep slopes facing in one general direction which are caused by erosion
or faulting. Also SCARP. (See Figure A-1)
ESTUARY
(1) The part of a river that is affected by tides. (2) The region near a river mouth in which the fresh water of the
river mixes with the salt water of the sea and which received both fluvial and littoral sediment influx.
EUSTATIC SEA LEVEL CHANGE
Change in the relative volume of the world's ocean basins and the total amount of ocean water.
EYE
In meteorology, usually the "eye of the storm" (hurricane): the roughly circular area of comparatively light winds
and fair weather found at the center of a severe tropical cyclone.
Appendix A Glossary of Coastal Terminology
A-29
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