Ocean 100 Exam 3 Chapters 10-13 SDSU Oceanography Questions and Answers

Ocean 100 Exam 3 Chapters 10-13 SDSU Oceanography Questions and Answers Coast - CORRECT ANSWER-Land extending inland as far as marine influence is seen. Marine influence ex: fog, vegetation, etc. Offshore - CORRECT ANSWER-Extends from breakers to the edge of continental shore. Beach - CORRECT ANSWER-Shore and nearshore. Very active. Berm - CORRECT ANSWER-Dry area at foot of the coastal cliff: sand. Covered in water during high tide, storm, and tsunami. What do waves do to the coast over time? - CORRECT ANSWER-Erosion. What are the sources of sand to the beach? - CORRECT ANSWER-River and cliff erosion. Summertime vs Wintertime Beach - CORRECT ANSWER-Summer- low wave energy & sandy beach/wide berm. Winter- high wave energy & rocky beach/narrow berm Longshore current - CORRECT ANSWER-Movement of water in surf zone (parallel to coast) that moves you in water from your original spot. Waves come at angle and pushes sand down coastline. (North to south in SoCal because of Westerlies). Depositional Coast (or Submergent) - CORRECT ANSWER-Tectonically quiet, flat coast. Has barrier islands, deltas, lagoons. Erosional coast - CORRECT ANSWER-Tectonic uplift and emerging from sea level. Has cliffs, headlands, caves, arches, sea stacks, terraces. Caves to arch to stack. Terraces - CORRECT ANSWER-Coastal sedimentary rock uplifted and carved by water. Rose Canyon - CORRECT ANSWER-Splits San Diego driving local deformation. Mt. Soledad and Point Loma are high, Mission Bay is low. The I-5 is on the canyon. Pacific Coast - CORRECT ANSWER-Erosional, uplifted, active. When sea level rises, ocean doesn't migrate inland much (because of coastal cliffs). Shoreline shifts smaller when sea level rises.