College of Staten Island, CUNYGEO 100Lab 13 - Oceans and Coasts

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Lab 13 Oceans and Coasts Name: Required materials Pencil Ruler Colored Pencils Arthur Kill Map Pre-lab reading and quiz Read Chapter 16 of your textbook and review your lecture notes on oceans ... and coasts. Review topographic maps from lab 2, and how to construct a topographic profile (http://serc.carleton.edu/mathyouneed/slope/topoprofile.html). Is the coastline of Staten Island mostly sandy (i.e. beaches and mudflats) or rocky (i.e. cliffs and wave-cut platforms)? Is the coastline of Staten Island submergent or emergent? Draw a diagram showing how sand moves along a beach due to longshore currents. What happens when a groin is placed on the beach?In-class lab exercises Part 1 Littoral drift on Staten Island On the Arthur Kill map, examine the shoreline of Staten Island between Tottenville and Crook’s Point. Highlight all of the groins on this section of the coastline in red. Shade all of the areas where sand is accumulating because of the groins in blue. Highlight the areas where sand is being eroded in yellow. Choose and area with 1 – 3 groins, and sketch an enlarged map of this area in the space below. Use the same colors to show the groin(s), sand accumulation and erosion. Draw an arrow on your map below to illustrate the direction of the longshore current and littoral drift. How did you determine the direction of this current?Part 2 Shoreline shape and sea level rise What is the scale of the Arthur Kill map, expressed as a ratio? How many feet are represented by 1 inch [Show More]

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