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Image service displaying Slope for LiDAR-derived DEMs (expressed in Degrees) for all counties in Wisconsin and along the shore of Lake Michigan, last updated May 7, 2024. A Slope Raster Function was applied to the Referenced Mosaic Dataset used to publish this service, with the Slope function Output Measurement set to DEGREE, and a Z factor of 1. The data sources are county-produced LiDAR with a range of flight years and DEM resolution, along with topobathy data provided by National Oceanic and Atmospheric Administration (NOAA).
Counties with 3-Meter resolution DEMs: Waupaca (2005). Counties with 2-meter resolution DEMs: Fond du Lac (2011) and Green Lake (2009)
Counties with 1-meter resolution DEMs: Ashland (2014) within the Bad River Reservation, Barron (2019), Buffalo (2016), Clark (2018), Dane (2017), Dodge (2017), Door (2018), Dunn (2019), Forest (2017), Iron (2015) within the Bad River Reservation, Kenosha (2017), La Crosse (2017), Lincoln (2015), Manitowoc (2015), Marquette (2018), Oconto (2019), Oneida inside the Lac du Flambeau Reservation (2013), Outagamie (2018), Ozaukee (2015), Portage (2016), Racine (2017), Shawano (2016), Sheboygan (2019), Taylor (2016), Vilas inside the Lac du Flambeau Reservation (2013), Walworth (2015), Washburn (2016), Washington (2015), Waukesha (2015). Counties with 2-foot resolution DEM: Adams (2019), Ashland (2019) outside the Bad River Reservation, Calumet (2018), Chippewa (2020), Columbia (2020), Crawford (2021), Green (2022), Eau Claire (2020), Florence (2019), Grant (2020), Iron (2019) outside the Bad River Reservation, Iowa (2022), Jefferson (2019), Juneau (2021), Kewaunee (2021), Lafayette (2019), Langlade (2017), Marathon (2021), Marinette (2021), Menominee (2020), Monroe (2019), Pepin (2019), Pierce (2021), Polk (2022), Price (2018), Richland (2021), Rock (2020), Rusk (2020), Sauk (2020), Sawyer (2017), St Croix (2021), Vernon (2020), Waushara (2017), Winnebago (2022), also the City of Oshkosh and portions of adjacent Townships (2019). Counties with 1-foot resolution DEM: Bayfield (2022), Brown (2021), Burnett (2022), Douglas (2022), Jackson (2022), Milwaukee (2020), Oneida and Vilas outside of the Lac du Flambeau Reservation (2022), and Wood (2022). Tobobathy data along the Lake Michigan shoreline (2020). Some gaps or data holidays exist in the topobathy data coverage due to a number of operational and environmental conditions. See https://www.fisheries.noaa.gov/inport/item/71376, Data Quality tab for more information.
Elevation units are Meters. The Vertical Datum for the county DEMs is NAVD88, Vertical Datum for Lake Michigan is IGLD 1985 height. WI DNR acknowledges the NRCS, USGS, FEMA, NOAA, US Army Corps of Engineers, the Southeastern WI Regional Planning Commission, and the individual counties listed above, for making source data available. For more information, visit https://dnr.wisconsin.gov/feedback and click on Geographic Services Information. |