| Section 1 | Overview | |||
| Originator | Minnesota Department of Natural Resources and Minnesota Geospatial Information Office | |||
| Title | Hillshade, LiDAR-derived, Minnesota | |||
| Abstract | The hillshade is a black-and-white image showing elevation changes in the landscape. It is created from a digital elevation model as if the elevation surface were illuminated by a hypothetical light source shining from the northwest. | |||
| Purpose | Hillshades make it easier to visualize changes in elevation over a landscape. They can be used on their own or as a backdrop layer for other geographic data. | |||
| Time Period of Content Date | ||||
| Currentness Reference | Hillshades were generated from a number of LiDAR datasets collected at different times. See the source metadata listed on the Minnesota LiDAR information webpage: http://www.mngeo.state.mn.us/chouse/elevation/lidar.html | |||
| Progress | Complete | |||
| Maintenance and Update Frequency | As needed | |||
| Spatial Extent of Data | State of Minnesota | |||
| Bounding Coordinates | -97.23 -89.53 49.37 43.5 | |||
| Place Keywords | Minnesota | |||
| Theme Keywords | elevation, LiDAR, DEM, digital elevation model, contour, topographic, topo, DTM, LAS, breakline, hillshade | |||
| Theme Keyword Thesaurus | ISO 19115 | |||
| Access Constraints | None | |||
| Use Constraints | See Disclaimer field for complete use conditions. | |||
| Contact Person Information | Brent Lund,
IT Specialist Minnesota Geospatial Information Office (MnGeo) 658 Cedar Street, Room 300 St. Paul, MN 55155 Phone: 651-201-2487 Email: gisinfo.mngeo@state.mn.us | |||
| Browse Graphic | Click to view a data sample.
Example hillshade in southeast Minnesota | |||
| Associated Data Sets | For more information about elevation data for Minnesota, see: http://www.mngeo.state.mn.us/chouse/elevation/index.html | |||
| Section 2 | Data Quality | |||
| Attribute Accuracy | Several areas in Kanabec County have known highly visible major errors. The vendor who provided the original data has been notified of the problem. | |||
| Logical Consistency | ||||
| Completeness | Complete except for large lakes for which no LiDAR data was collected. | |||
| Horizontal Positional Accuracy | Variable. See the source metadata listed on the Minnesota LiDAR information webpage: http://www.mngeo.state.mn.us/chouse/elevation/lidar.html | |||
| Vertical Positional Accuracy | Variable. See the source metadata listed on the Minnesota LiDAR information webpage: http://www.mngeo.state.mn.us/chouse/elevation/lidar.html | |||
| Lineage | Processing for about half the counties was done by the Minnesota Department of Natural Resources and the remaining counties were processed by the Minnesota Geospatial Information Office.
Hillshades were created from 1-meter source DEMs using the ArcGIS 10 Hillshade command. Default options were used: Altitude 45, Azimuth 315. At MnGeo, the hillshades were exported from ArcGIS as grayscale images and were then imported into the Geospatial Image Service, a WMS service. | |||
| Section 3 | Spatial Data Organization (not used in this metadata) | |||
| Section 4 | Coordinate System | |||
| Horizontal Coordinate Scheme | Universal Transverse Mercator | |||
| UTM Zone Number | 15 | |||
| Horizontal Datum | NAD83 | |||
| Horizontal Units | meters | |||
| Cell Width | 1 | |||
| Cell Height | 1 | |||
| Section 5 | Attributes | |||
| Overview | The hillshade is a black-and-white image showing elevation changes in the landscape. It is created from a digital elevation model as if the elevation surface were illuminated by a hypothetical light source. | |||
| Detailed Citation | ||||
| Table Detail: | ||||
| Section 6 | Distribution | |||
| Publisher | Minnesota Geospatial Information Office | |||
| Publication Date | 08/23/2012 | |||
| Contact Person Information | Nancy Rader,
GIS Data Specialist Minnesota Geospatial Information Office (MnGeo) 658 Cedar Street, Room 300 St. Paul, MN 55155 Phone: 651-201-2489 Email: gisinfo.mngeo@state.mn.us | |||
| Distributor's Data Set Identifier | Minnesota LiDAR-derived Hillshade | |||
| Distribution Liability | 1. Minnesota Department of Natural Resources General Geographic Data License Agreement: http://www.dnr.state.mn.us/sitetools/data_software_license.html
2. MnGeo's data disclaimer: http://www.mngeo.state.mn.us/chouse/disclaimer.html | |||
| Ordering Instructions | The hillshade image is available via MnGeo's Geospatial Image service (a WMS service); it is the "Hillshade (LiDAR)" layer. Click on the "I AGREE" link below for more information about the service and how to use it.
For more help with Minnesota's LiDAR data, see http://www.mngeo.state.mn.us/chouse/elevation/lidar.html | |||
| Online Linkage | I AGREE to the notice in "Distribution Liability" above. Clicking to agree will either begin the download process, link to a service, or provide more instructions. See "Ordering Instructions" above for details. | |||
| Section 7 | Metadata Reference | |||
| Metadata Date | 11/27/2017 | |||
| Contact Person Information | Nancy Rader,
GIS Data Specialist Minnesota Geospatial Information Office (MnGeo) 658 Cedar Street, Room 300 St. Paul, MN 55155 Phone: 651-201-2489 Email: gisinfo.mngeo@state.mn.us | |||
| Metadata Standard Name | Minnesota Geographic Metadata Guidelines | |||
| Metadata Standard Version | 1.2 | |||
| Metadata Standard Online Linkage | http://www.mngeo.state.mn.us/committee/standards/mgmg/metadata.htm | |||
