Lab 13

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CUNY College of Staten Island *

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101

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Electrical Engineering

Date

Feb 20, 2024

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pdf

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GEO 101 Instructor: Student: Lab 13 Oceans and Coasts Required materials Computer with Google Earth software In-class lab exercises Part 1 Littoral drift on Staten Island Examine the Google Earth image of the shoreline.

GEO 101 Instructor: Maria Ivanova Highlight all of the groins 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. Draw an arrow to illustrate the direction of the longshore current and littoral drift. How did you determine the direction of this current? I determined the direction of this current by looking at the sand buildup around the goins. I saw that on the right side of the groins, there was more buildup of sand that was being washed up. Because of that, it was easy to determine where the longshore current is moving this sand. Part 2 Shoreline shape and sea level rise You will draw 3 topographic profiles of different parts of the Staten Island shoreline to interpret how each would respond to storm surge and sea level rise. Open Google Earth Pro on your computer. Locate the points below and draw topographic profiles of different parts of the Staten Island shoreline to interpret how each would respond to storm surge and sea level rise. Attach all three profiles to the lab. Make sure your profile starts at point 1 - it is important to get the correct distances in feet for your answers. a) Annandale

GEO 101 Instructor: Maria Ivanova Annandale UTM coordinates Point 1 570510 mE, 4486290 mN Point 2 569665 mE, 4487835 mN On your profile trace the point where a 15-foot storm surge would reach. How far inland would the flooding extend (in feet)? Record your answer in a table below. 15-foot storm surge Location Distance in feet Annandale 24 ft Sea level rise is predicted to be up to 6.6 feet by 2100 (NOAA). If the West Antarctic ice sheet melts, sea level would rise by 16 feet and it would rise by a further 20 feet if the Greenland ice sheet melts (both would probably take a few centuries). How far inland would the flooding extend if both ice sheets melts? Trace the height on your profile. Record your answer in a table. West Antarctic and Greenland Ice Sheets melt (36 feet) Location distance in feet Annandale 1408 ft

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GEO 101 Instructor: Maria Ivanova b) Tottenville Tottenville UTM coordinates Point 1 563560 mE, 4485225 mN Point 2 564100 mE, 4484425 mN On your profile trace the point where a 15-foot storm surge would reach. How far inland would the flooding extend (in feet)? Record your answer in a table below 15-foot storm surge Location Distance in feet Tottenville 275 ft How far inland would the flooding extend if both Antarctic and Greenland ice sheets melts? Trace the height on your profile. Record your answer in a table.

GEO 101 Instructor: Maria Ivanova West Antarctic and Greenland Ice Sheets melt (36 feet) Location Distance in feet Tottenville 618 ft c) Sawmill Creek Sawmill Creek to CSI campus UTM coordinates Point 1 567910 mE, 4495780 mN Point 2 572120 mE, 4495015 mN On your profile trace the point where a 15-foot storm surge would reach. How far inland would the flooding extend (in feet)? Record your answer in a table below 15-foot storm surge Location Distance in feet

GEO 101 Instructor: Maria Ivanova Sawmill Creek to CSI 4066 ft How far inland would the flooding extend if both Antarctic and Greenland ice sheets melts? Trace the height on your profile. Record your answer in a table. West Antarctic and Greenland Ice Sheets melt (36 feet) Location Distance in feet Sawmill Creek to CSI 7603 ft Discuss how each location would be affected by a storm surge. Describe both the similarities and the differences for these three locations. In these three neighborhoods, Tottenville would have 275 ft of land underwater, Sawmill Creek would have 4066 ft underwater (most), and Annandale would only have 24 ft underwater (least). Although the numbers drastically vary, not too many houses would be destroyed, although combined, it is a good amount of land lost on those sides of the island due to a storm surge. Discuss how each location would be affected by sea level rise due to global warming. Describe both the similarities and the differences for these locations. In these three neighborhoods, Tottenville would only have 618 ft of land underwater, Sawmill Creek would have 7603 ft underwater, and Annandale would have 1408 ft underwater. Global warming would rise sea levels high enough for a substantial loss in land, many would lose their homes and Staten Island would be so much smaller just from those three locations, as of course it would go around other neighborhoods as well. Tottenville would be the least affected as less of it would permanently be under water, but Sawmill Creek and Annandale would have much more land loss. Sawmill Creek would have more land underwater compared to the other two locations.

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