4.4 STORMS & WAVES

Question 1

What is the meteorological component of sea level (often called ‘the non-tidal residual’)?

Answer 1

The part of the sea level that remains once the TIDAL COMPONENT HAS BEEN REMOVED & primarily contains the meteorological contribution to sea level.

Question 2

Tides

Answer 2

Cause water to come in/out of basin

Tidal component of sea level further modified by weather (geological factors e.g. storms, waves)

Question 3

Why is understanding the meteorological component of sea level important?

Answer 3

1. They have a strong influence on sea levels - coastal flooding & can cause considerable damage
2. They have a strong influence on currents and sediment transport, and hence coastal erosion
3. For design of coastal and offshore structures
4. Renewable energy generation
5. Recreation e.g. surfing, kayaking
6. Navigation (safety at sea)