Mean annual freezing level in the center of the Southwest
Mean annual freezing level in the center of the Southwest (over Glen Canyon Dam). Red: above period average. Blue: below period average. Black: Ten-year running mean. From the North American Freezing Level Tracker, based on Global Reanalysis data (WRCC 2012).
Mean annual freezing level (meters / year)
1948-01-01 00:00:00.0
2011-12-31 00:00:00.0
Glen Canyon Dam, Observed, NCEP/NCAR Global Reanalysis, Temperature
http://www.wrcc.dri.edu/cwd/products/