Geology and Human Affairs 1014 week 8
Geology and Human Affairs 1014 week 8 GEOL 1014 - 0-61920
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This 2 page Class Notes was uploaded by Ann McCarty on Monday October 10, 2016. The Class Notes belongs to GEOL 1014 - 0-61920 at Oklahoma State University taught by Priyank Jaiswal in Fall 2016. Since its upload, it has received 5 views. For similar materials see Geology and Human Affairs Lecture in Geology at Oklahoma State University.
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Date Created: 10/10/16
Week 8 notes 1014 10.3.16 10.1:C, 10.2:D, 10.3:B, 10.4:C, 10.5:D, 10.6:A, 10.7:A, 10.8:D, 10.9:D, 10.10:D Chapter 11: Case History: Cape Hatteras Lighthouse Intro: story about reversing coastal erosion. Hazards: - Hurricanes - Beach erosion - Floods - Waves - - formed by wind - Constantly in notion Wave and water movement - Figure 11.3 - Swell - Beach formation Currents: - Horizontal movement of water - Usually a large body of water. - Salinity: it is saltier where evaporation is high and there is not as much fresh water inflow. - Swash: zig-zag zone of water - Backwash: water going back into the ocean. - Net effect - Rip currents - - #1 reason for accidents - - know that you need to swim parallel to the shore. Transportation of sand: - All about topography and gravity and how things move. 10.5.16 Measuring Coastal Change: - Coastline topography - Width of beach - LiDAR (light Detection and Ranging) measuring elevation - -to find out rapidity of erosion of beach/ coast - - figure 11.13 - - Blue dots v. Read dots - - sea floor topography - - once beach erosion starts, the coast is gone. Week 8 notes 1014 Hard Stabilization: Engineering Structures - Keeping sand from leaving by adding deep walls - Jetty: long wall into water to try to help, but it does worse for the ecosystem. - Drainage systems cant handle large amount of discharge (rain water), especially if the ground is saturated or if there is too much concrete. Soft stabilization: Beach Nourishment - Many projects were unsuccessful. Human Activity and Costal Erosion 10.7.16 No class, review day
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