Causes of Global Sea Level Rise: Thermal Expansion, Glacial Melting, and More

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SUMMARY

The primary causes of global sea level rise over the last century include thermal expansion of the oceans and melting glaciers, specifically from alpine glaciers and the Greenland ice sheet. Estimates indicate that the Greenland ice sheet alone can contribute up to 720 cm of sea level rise. Additionally, relative sea levels in the Gulf Coast of the United States are rising at rates significantly higher than the global average, primarily due to Antarctic ice melting. Understanding these factors is crucial for addressing the implications of climate change on sea levels.

PREREQUISITES
  • Understanding of thermal expansion in oceanography
  • Knowledge of glacial dynamics and their impact on sea levels
  • Familiarity with post-glacial rebound concepts
  • Basic principles of climate change and its effects on sea levels
NEXT STEPS
  • Research the impact of thermal expansion on ocean levels using climate models
  • Study the contributions of the Greenland ice sheet to global sea level rise
  • Examine the effects of El Niño and La Niña on regional sea levels
  • Investigate the implications of post-glacial rebound on coastal regions
USEFUL FOR

Climate scientists, environmental researchers, policymakers, and anyone interested in understanding the dynamics of global sea level rise and its implications for coastal communities.

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Homework Statement


What are the causes of Global Sea Level Rise during the last century

A. Thermal Expansion of the Oceans
B. Melting of Glaciers
C. Post Glacial Rebound
D. A and B

ans D
It is possible to estimate Global Sea Level Rise using data from a hand-full of tide gauges.
A true
B False

ans B because geologically the height of the land can change.

Choose the Correct Answers

A. Alpine glaciers and small ice caps melting (contain water to change sea level by 51 cm)
B. Greenland ice sheet (contains water to change sea level by 720 cm)
C. Changes to water stored on land have a major effect on global sea levels
D. A and B

ans D, I don't know if the source where I am getting this answer is right, but I am just wondering if you agree

During El Niño events:
A. Sea levels in Peru are higher than they are during non El Niño events
B. Sea levels in Peru are lower than they are during non El Niño events
C. Sea levels are higher globally
D. Sea levels are lower globally

ans B, sea levels are higher at peru during el nino event

Relative Sea Levels in the Gulf Coast of the United States are rising at rates much greater than the global overage due to:

A. Post Glacial Rebound
B. A Strong La Niña
C. Sediment Load on the continental shelf
D. Antarctic ice melting

D, I don't think that the rise of land masses influences the rise of sea levels.

Homework Equations

The Attempt at a Solution

 
Last edited:
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TheMathNoob said:
D, I don't think that the rise of land masses influences the rise of sea levels.
Tthe question asks for the rise relative to the ground.
Why should melting ice in the Antarctic influence the US gulf coast in particular?

Google should find answers to all of those questions.
 

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