1. Rising of Sea Level Bekircan İDER

2. In the world, the sea level has been rising about 1.8 mm/year for the past century.

3. The most important cause is you know :) Global Warming!

4. The Earth is Warming Yearly Average Surface Temperatures [Hansen et al., 2005]

5. What Causes to Change Sea Level?

6. What is “Average Sea Level Change”? “Average Sea Level Change” is the average height of the oceans. “Average Sea Level Change” is the average height of the oceans. Sea level changes at a specific location in the ocean may get higher or lower. Causes of differences are the ocean temperature and other effects. Sea level changes at a specific location in the ocean may get higher or lower. Causes of differences are the ocean temperature and other effects. Usually measured in units of millimeters (mm): 25.4 mm Usually measured in units of millimeters (mm): 25.4 mm

7. G RAVITY Measurements of Sea Level Change Altimeter: measuring heightExpansion: becoming wide Gauge: measure, size,scale

8. Now, thermal expansion is the primary contributor to sea level rise and in next centuries, it will be same.

9. Tide Scale Observations Average Rate ~ 1.8 mm/year 0.8 mm/year 2.0 mm/year 3.2 mm/year [Church and White, 2006] Tide: alternate rising and falling of sea Observation: investigation

10. Sea Level Changing is not Same Everywhere Average Sea Level Rise over 1993-2006 mm/yr

12. These are the effects of Sea Level Change Thermal Increasing: ~1 meter Mountain Icecap: 0.5 meters Greenland Ice Melting: 7 meters Antarctic Ice Melting: 60 meters Groundwater Storage: < 0.5 meters

13. Is Sea Level Rising Quickly?

14. Don’t you know? Imagine!

16. Effects of Sea Level Rise 1 meter 2 meters 4 meters8 meters GFDL

18. Thanks for listening to me THE END Name: Bekircan İDER Class: 201