GEOLOGY 1 Chapter Notes - Chapter 1: Ocean City, Maryland, Coastal Engineering, East Los Angeles College
Document Summary
Common structures: seawalls, groins, breakwaters, and jetties. Interference with longshore currents, causing unintentional adjacent local erosion and deposition. 200 m wide beach, survived major hurricanes in 1979 and 1992. Foreign tourism alone brings in about billion per year, over 650 times the cost of the nourishment. Human activity and coastal erosion (atlantic coast: barrier islands from fl to ny- example: ocean city, maryland) Inlet opened in 1993 hurricane, vulnerable for future hurricane or other severe storms, only matter of time. Local erosion due to developmental and removal of natural dunes. Last 100 years, coastal erosion along texan coast accelerated by 30-40 percent. Coastal erosion along the gulf of mexico. Due to land subsidence form the groundwater withdrawal and petroleum exploration. Reduction of sand supple from the damming rivers (the great lakes) Periodic problems along the coasts of the great lakes. Erosion is more severe along the lake michigan shoreline.
