GLY 101 1st Edition Lecture 27Outline of Last Lecture I. GlaciersII. Glacial ErosionIII. Glacial deposits and landformsOutline of Current Lecture II. ShorelinesIII. WavesIV. TidesCurrent LectureII. Shorelines-shoreline is the line that marks the contact between land and sea-shore is the area that extends between the lowest tide level and the highest elevation on landthat is affected by storm waves-coast extends inland from the shore- coastline marks the coast’s seaward edge-the foreshore is the area that is exposed when the tide is out and submerged when the tide isin-backshore is landward of the high tide shoreline-a beach is an accumulation of sediment found along margin of an ocean or lake-ocean waves are caused by energy traveling along the interface between ocean and atmosphere-ocean waves have crests and troughsThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.-the crest is the top of the wave and the trough separates the crests-still water level is the water with no waves-the height, length, and period of a wave depend on wind speed, wind duration, and fetchIII. Waves-abrasion is the sawing and grinding action of the water armed with rock fragments-wave refraction is the bending of waves and it affects the distribution of energy along the shore.IV. Tides-tides are daily changes in the elevation of the ocean surface caused by gravitational interactions of Earth with the Moon and Sun. -Causes of tides the pull of gravity.-a diurnal tidal pattern is characterized by a single high tide and a single low tide each day-a semidiurnal tidal pattern shows two high tides and two low tides each
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