AE/VE Zone –

Coastal hazard zones (flood zones) designated by the Federal Emergency Management Agency (FEMA) on Flood Insurance Rate Maps. Zone AE areas are subject to inundation by the 1-percent-annual-chance flood event (commonly referred to as the 100-year storm). Zone VE areas are areas subject to inundation by the 1-percent-annual-chance flood event with additional hazards due to storm-induced velocity wave action.

Aggradation

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Aggradation, also called accretion, is the increase in land elevation due to building up by natural (e.g., sediment deposition out of water onto a beach) or artificial (e.g., beach fill deposited mechanically on a beach) means.

Astronomical Tide –

The astronomical tide is the rising and falling effect on sea levels caused by the gravitational effects of the Earth, sun, and moon, without accounting for atmospheric influences.