1. Tracking the water supply in Lake Mead and Lake Powell
8/21/2013
2. Lake Mead July 1 elevation: 1935-2013 2Source: Bureau of
Reclamation
3. Lake Powell daily elevation: 1964-2013 3Source: Bureau of
Reclamation
4. Lake Powell: historic and projected elevations 4Source:
Bureau of Reclamation
5. 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140
FLOW(1000CFS) Feb. 1935 Storage begins at Lake Mead July 1941 Lake
Mead fills Mar 1963 Storage begins at Lake Powell June 1980 Lake
Powell fills Dams dramatically alter natural hydrograph 5 Flow
below Hoover Dam: 1906 - 2007 1983 floods Source: Bureau of
Reclamation
6. Lake Powell and Lake Mead storage 6Source: U.S. Climate
Change Science Program/Bureau of Reclamation
7. 7 1,200 years of drought in the West Source: U.S. Climate
Change Science Program
8. Recent droughts less severe for Colorado River 8 History of
Colorado River Flow Source: U.S. Climate Change Science
Program
9. Lake Powell 9 Source: U.S. Climate Change Science Program/
Photos by John Dohrenwend
10. Lake Powell 10 Source: U.S. Climate Change Science Program/
Photos by John Dohrenwend
11. Lake Powell 11 Source: U.S. Climate Change Science Program/
Photos by John Dohrenwend
12. 1999 1999 NASA 12Source: NASA
13. 2000 2000 NASA 13Source: NASA
14. 2001 2001 NASA 14Source: NASA
15. 2002 2002 NASA 15Source: NASA
16. 2003 2003 NASA 16Source: NASA
17. 2004 2004 NASA Hite Marina 17Source: NASA
18. 2005 2005 NASA 18Source: NASA
19. 2006 2006 NASA 19Source: NASA
20. 2007 2007 NASA 20Source: NASA
21. 2008 2008 NASA 21Source: NASA
22. 2009 2009 NASA 22Source: NASA
23. 2010 2010 NASA 23Source: NASA
24. 24 2011 Source: NASA
25. 25 2012 Source: NASA
26. 26 2013 Source: NASA
27. 27 2012 2013 Source: NASA Lake Powell and the recent
drought
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