Marine and Coastal Processes and their Effects

1. Marine and Coastal Processes
and their Effects
EARTH AND LIFE SCIENCE
QUARTER I

2. DEPARTMENT OF EDUCATION
Learning Competency:S11-12ES-Ii-40
• Give practical ways of coping with coastal
erosion, submersion, and saltwater
intrusion.
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3. DEPARTMENT OF EDUCATION
Subtitle
Practical ways of coping with coastal
erosion, submersion, and saltwater
intrusion
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4. DEPARTMENT OF EDUCATION
Coastal Erosion
• Hard stabilization builds structures that will
slow down the erosion on areas where it is
located. Examples of these structures are
jetties, sea walls, and breakwater.
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5. DEPARTMENT OF EDUCATION
Coastal Erosion
• Soft stabilization includes the process of
beach nourishment wherein sand from an
offshore location is brought to an area with
receding shore.
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6. DEPARTMENT OF EDUCATION
Coastal Erosion
• Retreat is the option taken by residents
near the areas where coastal erosion is
already severe.
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7. DEPARTMENT OF EDUCATION
Submersion
• Sea walls are built along the coastline to
protect the land from being easily flooded
• Dikes can also help prevent flooding.
• Regenerate mangroves or relocate the
people.
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8. DEPARTMENT OF EDUCATION
Saltwater Intrusion
• Stop using the well where freshwater has
been depleted and let the natural ways to
replenish the groundwater through the
water cycle.
.
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9. DEPARTMENT OF EDUCATION
Saltwater intrusion
• The other method is to build two wells: a
pumping well built further in the land and
an injection well built closer to the coast.
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10. DEPARTMENT OF EDUCATION
www.worldscientific.com/ random seas book
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Seawalls

11. DEPARTMENT OF EDUCATION
Jetties and wells
www.seafriends.org.nz
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12. DEPARTMENT OF EDUCATION
Pumping and Injection wells
Heraldresearch/hazen and sawyer
Marco Ruiz/maruiz@miamiherald.com
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13. DEPARTMENT OF EDUCATION
References:
• Earth and Life Science (Sibs) by Shila
Rose D. Sia, Leah Amor S. Cortez and
Rosario Laurel Sotto,Coordinator, pages
88-89
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14. THANK YOU!