To create the map I used open data from several online sources. I downloaded bathymetry data from NOAA, bouys and channel data from Florida Fish and Wildlife Conservation, and some road and point of interest data from OpenStreetMap. I needed several tools to work with the data and create the map. To manipulate the raster bathymetry data, I used GDAL, which has a bunch of awesome tools to merge, warp, color map, and create contours from a bunch of common data formats. Read More