From the Archives

Measuring Water Clarity and Quality in Minnesota Lakes and Rivers: A Census-Based Approach Using Remote-Sensing Techniques
CURA Reporter, summer 2007, by Patrick L. Brezonik, Leif G. Olmanson, Marvin E. Bauer, and Steven M. Kloiber
Read more from the CURA Reporter (.pdf)

Report on Minnesota rivers comes now by air
03/05/2006 - From 11,000 feet, a powerful sensor can detect subtle changes in water quality along the length of a river...
Read more from the Minneapolis Star Tribune (.pdf)

Satellite Tabulation of Impervious Surface Areas
2005 - The past decade has been one of steady growth across many areas of North America including Minnesota, and particularly in our lake regions and associated communities...
Read more from LakeLine - A publication of the North American Lake Management Society

Lake Scientists adopt a space-age approach
01/12/2003 - Alec Donaldson, a retired marketing executive, hops in his boat on a hot summer day, motors to the middle of a lake near Brainerd, Minn., and lowers a white disk into the depths...
Read more from the Minneapolis Star Tribune (.pdf)

Water Colors: Earth-orbiting satellites give natural resource managers a new way to look at lake quality
04/01/2002 - Once a week, on calm clear days between May and September, retired veterinarian Harold Dziuk fires up the 15-horsepower engine on his fishing launch and sets off for a spot about a quarter mile from his home on Big Turtle Lake, a 2,000-acre body of water in Itasca County...
Read more from the University of Minnesota's College of Natural Resources publication, Spectrum (.pdf)

Testing the Waters: Using satellites to monitor lake water clarity
03/11/2002 - Unless you are a toad or a swamp rat, chances are you don't want to live on the edge of a smelly, algae-filled lake. Most people like their lakes clean, clear, and fresh...
Read more from the Earth Observatory