Much of the data we collect at LLO eventually appears in the public domain. Some of the larger repositories with ongoing data input are listed here.
The LLO's Google Scholar page contains citations for books, book chapters, articles and meeting abstracts created by researchers at the Large Lakes Observatory.
Rolling Deck to Repository (R2R): data collected using sensors on the RV Blue Heron, such as temperature, chlorophyll, current speeds captured by the ship's ADCP, etc.
Biological & Chemical Oceanography Data Management Office: Some LLO biological and chemical data is archived at BCO-DMO. Look under the Program, "Laurentian Great Lakes Ecosystem Studies" that may also include data from beyond LLO.