Browsing by Author "University of Minnesota Fisheries Ecosystem Ecology Lab"

Now showing 1 - 1 of 1
  • Thumbnail Image
    Item
    Digitization of Minnesota and Wisconsin bathymetric maps resulting in hypsographic data
    (2020-09-09) Rounds, Christopher I; Hansen, Gretchen JA; Vitense, Kelsey; Van Pelt, Amanda; round060@umn.edu; Rounds, Christopher; University of Minnesota Fisheries Ecosystem Ecology Lab
    The data set includes hypsographic data (area-at-depth) for over 750 Minnesota and Wisconsin lakes throughout the states. The majority of these lakes (650+) did not have publicly available hypsography. The hypsography was derived by digitizing bathymetric DNR maps using ImageJ. One hundred Minnesota lakes were selected that had DNR hypsographic data (in the form of a DEM) available and a comparison between the hypsographic data derived from DEMs and ImageJ was completed. These results, as well as code and hypsographic data is all available. The purpose of this work was to release broad scale lake area-at-depth data for limnological and aquatic biology studies.