Cameron Wingren

This bathymetric mapping project developed my ability to manage the workflow involved in making a bathymetric map. Following the proper steps of this workflow is important to create a quality bathymetric map that conveys the proper info in an easy to understand and visually appealing way.  To create the bathymetric map of the Lake Tomahawk Area Lakes, I began with data that was provided by Dr. Sean Hartnett. The first step was to create a TIN in ArcMap using the exported data.  To do this, the Create TIN tool from the 3D analyst extension was used, with the lake shoreline shapefile and the depth measurements being added to the tool with the depth variable selected for both objects.  Next, the projection was set to UTM Zone 15 as this is the area where the lakes are located.  The output was symbolized with a blue color ramp with a defined interval of 1 foot.  Next, the TIN to Raster to was used to create a 1-meter grid file by inputting the raster and setting the sampling distance to a cell size of 1.  The next step was to classify the water rater with an interval of 1 foot and select the same blue color ramp used for the TIN.  The Contour tool was then used to create a set of contour lines within each lake with a contour interval of 10 feet which was used to signify the changes in depth within the lake in addition to the color ramp.  These contour lines were smoothed to make them more visually appealing and cleaner looking.  Once this was all completed in ArcMap, the image was exported to Adobe Illustrator where items such as a scale bar, title, north arrow, legend, and some other ancillary information was added.  With this done, a high-quality JPEG and PDF were exported from Adobe Illustrator to be used for print and publication.