1. Mitchell Fyock; Dr. Carl Legleiter
Glacial Recession in the Cloud Peak Wilderness and the Effects on Streamflow
Mitchell Fyock; Dr. Carl Legleiter

3. Methods

5. Sources of Data Powder River Pass Snotel Measuring Station
Similar USGS Stream Gage

6. Central Temporoid Annual Center of Water Mass
Calculated by: CT=Σ(tiQi)/ΣQi
t = time (in days) from the beginning of the water year (Oct. 1st – Sept. 30th)
Q = mean daily discharge (Cubic Meters per Second)

8. Results

9. Variables of Interest

10. Date of Peak Snow/Water Equivalent

11. Central Temporoid
CT=Σ(tiqi)/Σqi

14. Image Analysis
Cloud Peak Glacier 1976
Cloud Peak Glacier 1966

15. 64% Decrease in Area over 21 Year Period
Cloud Peak Glacier 1980
Cloud Peak Glacier 2001

16. Conclusion
No longer are just the Poles experiencing Climate Change, the impacts can be seen at a local level
Due to the effects of increasing temperatures, the Cloud Peak Glacier is beginning to disappear, and the effects of the loss of this free water supply can be seen
As the glacier continues to recede and mountain snowpack continues to diminish over time, melt will occur earlier in the spring lowering the amount of available water in the late summer months

17. Sources
Mote, P.W., Hamlet, A.F., Clark, M.P, & Lettenmaier, D.P. (2005). Declining mountain snowpack in western north america.
Jacobs, J.J., & Brosz, D.J. (2000). Wyoming's water resources.
Stewart, I.T., Cayan, D.R., & Dettinger, M.D. (2004). Changes in snowmelt timing in western north america under a . Climatic Change, 62,