Wednesday, May 2, 2012

Rising Sea Levels Notes and Exercises

The Rising Sea Levels Notes

1. What are the differences between prediction and prevention?

Prediction: To foresee a possible event that might occur in the near or distant future
Prevention: To stop a certain event that from happening or arising

2. What does global warming have to do with rising sea levels?
With the temperatures of the world rising, the glacial in the polar caps start melting causing more ice to melt into water, thus resulting the sea levels to rise.

Several factors of sea levels rising:

-Glacial Melting
-Ice from the polar caps melting
-Thermal Expansion (When water heats up, it expands and sea levels rise)

Causes of sea level rising:

Sea Level : (Rise, Fall)
Warm Climate
Due to glacial caps melting causing the glacial to melt into water, causing more water to be deposited into the ocean
Cool Climate
As the water in the ocean start freezing in glacial caps, the water in the ocean starts decreasing.

There are two types of changes in sea levels

Eustatic Change: There are global changes were the global sea level rises or falls, they either rise during the warm climate and fall during the cooler climate.

Isostatic Change: These are global changes of the land mass rising or falling , this is commonly due to ice on land melting, causing the land to rebound due to the pressure rising or falling

UGG Textbook Practice Exercises

Pg 125

a.     In the United Kingdom, the majority of areas at risk of coastal flooding and erosion is located on the east of the United Kingdom, most of it is located in King’s Lynn and while London is also prone to coastal flooding. Also, located on the east of London, Bristol also has areas which are prone to lowland flooding. Also on the west of the United Kingdom, Liverpool has many areas which are prone to flooding. Lastly, Carlisle also has lowland areas which at risk from coastal flooding
b.     These areas are more prone to erosion due the fact that longshore drift is taking materials away, since these areas face the rough Atlantic ocean, there are more destructive waves thus causing more material to be eroded and taken away.

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