GEO 1111 Lecture Notes - Lecture 18: Orbit, Northern Hemisphere, Wind Wave

• School: University of Ottawa
• Department: Geology
• Course: GEO 1111
• Professor: Robert Jack Cornett

Document Summary

Consequences: water is an excellent heat distributor moderates earth"s climate. On land temperature range = 145 degree celsius: highest = 58, lowest = -88. On seas-surface temperature range = 38 degree celsius: highest = 36, lowest = -2. Salinity salts dissolved in water: na = ~30%, cl = ~55, measured in ppt(%, ave. ocean salinity: 35 ppt, river water salinity 05 ppt often less, 35 grams of salt/1000 grams of seawater. Waves: undulations on water, propagation of disturbance across water surface, energy transfer across a medium. Move waves in the ocean are generated by wind wind waves. Wind waves generate by shear stress at interface between air and water. Swells: free travelling wind waves that have left the zone of influence of the wind that generate them (lower amplitude, faster) Wavelength horizontal distance between 2 crest. Height vertical distance between crest and trough. Frequency number of full waves per seconds (hertz)