20260106 11513400 1.0 North American Profile of ISO19115 2003 FALSE lake_bathymetric_contours Projected GCS_North_American_1983 NAD_1983_UTM_Zone_15N <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.1'><WKT>PROJCS["NAD_1983_UTM_Zone_15N",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-93.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",26915]]</WKT><XOrigin>-5120900</XOrigin><YOrigin>-9998100</YOrigin><XYScale>10000</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>26915</WKID><LatestWKID>26915</LatestWKID></ProjectedCoordinateSystem> Linear Unit: Meter (1.000000) 20140213 12111400 20140213 12111400 Andy Williquett Minnesota DNR - Fisheries GIS Data Contact 651-259-5244 500 Lafayette Rd Saint Paul MN 55155 andrew.williquett@state.mn.us 20240528 ArcGIS Metadata 1.0 Zeb Thomas Minnesota DNR - GIS GIS Data Systems Coordinator 651-259-5637 500 Lafayette Rd Saint Paul MN 55155 zeb.thomas@state.mn.us Please visit the download page for this dataset on the Minnesota Geospatial Commons website using the web link below (Online Linkage). Shapefile Not Applicable http://gisdata.mn.gov/dataset/water-lake-bathymetry Lake Bathymetric Outlines, Contours, and DEM 2021-10-04 DNR Division of Fish and Wildlife - Section of Fisheries DNR Division of Fish and Wildlife - Section of Fisheries This file geodatabase includes the following individual layers: Lake Bathymetric Contours: Contours lines corresponding to lake bathymetry, digitized from existing lake contour maps produced by the DNR Ecological Services Lake Mapping Unit. Use in combination with other Lake Bathymetric GIS products. Classify and label contour lines with depth values. Convert to polygons and calculate lake surface area for each depth interval. Overlay onto bathymetric DEM shaded relief image. Lake Bathymetric Digital Elevation Model (DEM): A digital elevation model (DEM) representing lake bathymetry. Cell size is most often 5m, although 10m cells were used for some lakes to reduce grid file size. This grid contains one attribute DEPTH that represents lake depth in (negative) feet. Use in combination with other Lake Bathymetric GIS products. Reclassify DEM based on various depth intervals. Calculate zonal and neighborhood statistics. Derive slope surface. Model depth data with other cell-based parameters (e.g., slope, vegetation, substrate, chemistry) to predict habitat suitability, functional niches, etc. (Note: These raster analyses require Spatial Analyst or Arc Grid.) Lake Bathymetric Outline: Lake outline as digitized from 1991-92 aerial photography (1m DOQ's). Use in combination with other Lake Bathymetric GIS products. Overlay onto bathymetric contour lines and bathymetric DEM shaded relief image. Lake Bathymetric Metadata: Metadata for the Lake Bathymetry layers. Each lake is represented by a polygon. The polygon attributes contain information about when the bathymetry fieldwork was completed. This layer can be used to query for bathymetry created on or between certain dates, or to ascertain what date a particular lake was investigated. The dates are in a text field. Date formats vary from record to record. Contours: Limnological studies, experimental design, field studies, morphometric analyses. DEM: Spatial modeling, slope determination, volumetric calculations, cell-based analyses. Outline: Mapping, morphometric analyses (surface area, shoreline length). Metadata: To support the use of the Lake Bathymetry layers with fieldwork dates. Andy Williquett Minnesota DNR - Fisheries GIS Data Contact 651-259-5244 500 Lafayette Rd Saint Paul MN 55155 andrew.williquett@state.mn.us https://resources.gisdata.mn.gov/pub/gdrs/data/pub/us_mn_state_dnr/water_lake_bathymetry/preview/preview.jpg Minnesota hydrography, lakes, bathymetry, contours, depth, inlandWaters, surface area, shoreline hydrography, lakes, bathymetry, contours, depth, inlandWaters, surface area, shoreline Minnesota The Minnesota Department of Natural Resources General Geographic Data License Agreement is online: http://www.dnr.state.mn.us/sitetools/data_software_license.html ArcView true -96.719299 -89.998661 48.559229 43.460328 Time Period of Content date indicates the date which the user can be confident of accuracy and completeness of the dataset. Product dates depend on field work dates related to production of original lake contour maps. Zero depth values correspond to lake shoreline and islands as digitized from various aerial photography datasets. See Contact Information to obtain dates for individual products. 2021-10-04 This dataset is kept up to date with core layer dowlknum Not Applicable http://www.mngeo.state.mn.us/committee/standards/mgmg/metadata.htm lake_bathymetry_mapdates table indicating date DOW Lake Bathymetry Fieldwork was done lake_bathymetric_metadata Feature Class Attribute Table LAKE_NAME Lake name per Division of Waters LKDBMAIN database DOWLKNUM Minnesota DNR Division of Waters Lake ID (sub-basin number;may end in '01, 02, etc.; refers to a single basin) 010001-879999 The first two digits (01-87) of these composite codes denote which county the lake is in. LKNAME Lake Name LOCATION No Information Available TILE_NAME DRS directory name ("d" + "dowlknum") MAPID Lake contour map identification number FILENAME Filename and path for scanned lake contour map (.tif images) stored at: Dnrco2\Shareco2\Faw\Lakemaps FLDW_END End date of fieldwork for lake contour map lake_bathymetric_contours DEPTH Depth 0 Lake shoreline or island contour -1 to - 200 Depth (in negative feet), usually a multiple of -5 lake_bathymetric_elevation_model VALUE Estimated depth (in negative feet) lake_bathymetric_outline LAKE_NAME Lake name per Division of Waters LKDBMAIN database CTY_NAME County name DOWLKNUM Minnesota DNR Division of Waters Lake ID (sub-basin number;may end in '01, 02, etc.; refers to a single basin) 010001-879999 The first two digits (01-87) of these composite codes denote which county the lake is in. ID Unique ID for each basin having same DOW# AREA Surface area of lake basin in square meters. ACRES Surface area of lake basin in acres PERFEET Perimeter of lake basin (shoreline) in feet PERIMETER Perimeter of lake basin (shoreline) in meters