that shows DOC concentrations in April and August 2012. Basically this shows that concentrations of most constituents are higher under the ice than in open water conditions. It also shows how much variation there is between lakes.
The material on this web site is based upon work supported by the National Science Foundation Arctic Observing Network (AON) and Arctic System Sciences (ARCSS) Programs. Additional support is provided by the U.S. Geological Survey, Bureau of Land Management, and the Arctic LCC.