lesson 10: marine/coastal

• topography


  the study of the land surface
• topography


  refers to mountains, valleys, rivers, or crates in the surface
• topo


  means ''place"
• graphia


  means "writing"
• marine life


  anything that lives in the water (plants, fish, sharks, algae, etc.)
• marine organisms/microorganisms


  produce oxygen & secretes carbon
• coastal currents


  • coherent water masses in motion
  • found in the region between the coastline and the edge of the continental shelf
• coastal erosion


  is the process by which local sea level rise, strong wave action, and coastal flooding
• coastal erosion


  occurs mainly during strong winds, high waves, and high tides.
• saltwater erosion


  it is where saltwater and waves weaken soil & infrastructure
• erosion 


  takes place on the shore's surface and the beach. it is a partially reversible process.
• tsunami


  catastrophic ocean wave, usually caused by earthquakes or volcanic eruptions.

  also known as "tidal wave"
• misnomer


  if the tsunami has no connection with the tides
• storm surge


  waves that are caused by strong wind movements leading to vertical circulation in water
• strong coastal currents


  these rip currents generated in tne surf zone & tidal currents
• coastal erosion


  produces property damage
• storm surge


  from tropical & extratropical cyclones
• tsunamis


  pose hazards to coasts of the pacific ocean
• areas in the philippines prone to coastal erosion:

  1. the northern planes of manila bay
  2. davao city
  3. boracay islands
  4. baler, aurora