GEOG 101 Lecture Notes - Lecture 23: Wind Speed, Sea Level Rise, Centripetal Force
Document Summary
2/3 of worlds population live near the coast. Coastal environments provide lots of environmental resources. Sea level change and a range of processes. Total wave height is only about a meter. 2 high tides and 2 low tides. Sun and moon pulls the water away from the earth. High pressure cells with winds moving around. Influence the mobility to a depth of about 100m. Will travel at about 3% of ocean winds: coastal processes. Size of waves dependent upon 4 variables: The length over which the wind might blow is going to influence the size of waves. Length of time the wind has blown. Wind 25km/hr + 15km fetch + winds blowing 2-3 hours. Wind 90km/hr + 35km fetch + wind blows for several days. Depth of wave = of wavelength. Swells can travel long distances with no change. If the coast is a cliff, tremendous amount of energy will smash against it.
