Question

list and describe examples of hard stabilization:

Explanation:

Hard stabilization in coastal or geotechnical contexts (often Environmental Sciences subfield of Natural Science) has examples:

1. Seawalls: Man - made structures (usually concrete/stone) built along shorelines. They reflect wave energy, reducing erosion and stabilizing the coast, but can disrupt natural sediment movement.
2. Groins: Long, narrow structures built perpendicular to the shore (from land into water). They trap sediment on the updrift side, building up beaches, but can cause erosion on the downdrift side as sediment supply is reduced there.
3. Jetties: Paired structures (e.g., at harbor entrances) built parallel to shorelines. They stabilize the channel by preventing sediment from filling it, and also protect the harbor from wave action, but can alter coastal currents and sediment transport.

Answer:

1. Seawalls: Man - made structures (usually concrete/stone) along shorelines, reflect wave energy to reduce erosion and stabilize the coast (disrupts natural sediment movement).
2. Groins: Narrow structures perpendicular to shore, trap sediment on updrift side (causes erosion on downdrift side).
3. Jetties: Paired structures at harbor entrances, stabilize channels and protect harbors (alter coastal currents and sediment transport).