GL air

The amount of precipitation falling on the Great Lakes Lakes basin directly affects water levels of the lakes. Extreme changes in the water level can be expressed as a drought or flood, which has a tremendous impact on plants and animals living in the region.
Coastal floods can result in coastal erosion, which can be prevented by monitoring and ecological engineering efforts. Severe drought also cause problems in shipping, recreation, water supply and transportation.

1. How does precipitation relate to lake levels? During periods when one lake is low or high, how do the levels of the other lakes compare?
2. Describe a probale chain of events that might occur if three successive years in the Lake Superior Basin had low precipitation. Synthesize the impacts on lake level in Superior and downstream lakes. How would people notice these changes?

1. Activities for the Changing Earth System

2. LAKERS (Lake-Aware Kids Engaged in Relevant Science)

3. The Great Lake Erie

4. Great Lakes Instructional Materials for the Changing Earth System

5. Earth Systems - Education Activities for Great Lakes Schools (ES-EAGLS)
Land & Water Interactions in the Great Lakes Climate and Water Movement

6. Global Change in the Great Lakes Scenarios

7. Development of Flood Inundation Maps

1. Activities for the Changing Earth System

How High’s the Water?

Is See Level Rising? Well, It Depends

2. LAKERS (Lake-Aware Kids Engaged in Relevant Science)

What causes the shoreline to erode?

How do the levels of the Great Lakes change?

3. The Great Lake Erie

4. The Effect of Lake Erie on Climate

11. Water Level Fluctuations on the Great Lakes

4. Great Lakes Instructional Materials for the Changing Earth System

How is the precipitation of the Great Lakes Basin related to lake level change?

What economic costs and benefits might coastal communities experience from lower lake levels?

5. Earth Systems - Education Activities for Great Lakes Schools (ES-EAGLS)

Land & Water Interactions in the Great Lakes

What causes the shoreline to erode?

Can erosion be stopped?

Climate and Water Movement

How do the levels of the Great Lakes change?

6. Global Change in the Great Lakes Scenarios

What are the implications of low water levels in the Great Lakes estuary?

Order form

Drought severity index (by NOAA)

For more picture, please go to ESE's Today's Picture page

1 Drought Information Center
http://www.dep.state.pa.us/dep/subject/hotopics/drought/drought.htm

2. National Warnings Area (by NOAA)
http://iwin.nws.noaa.gov/iwin/nationalwarnings.html

3. Drought Hazards and Statistics for Ohio
http://www.geography.ohio-state.edu/faculty/rogers/drought.html

4. Shore Erosion and Coastal Flooding Questions
http://www.seagrant.wisc.edu/advisory/coastal_engr/faq2.html