| Section 1 | Overview | |||
| Originator | Richard Strong, Ryan Mattke, Len Kne, Coleman Shepard, Melinda Kernik, and Richard Graves, U of MN | |||
| Title | Twin Cities Historical Surface Waters Based on Original Public Land Survey Maps, 1848 -1858 | |||
| Abstract | These shapefiles of lakes, streams, wetlands, river bottoms, and the Mississippi River represent the hydrological landscape of Minneapolis and St. Paul as recorded in the original public land survey conducted between 1848 and 1858. The hydrologic features were digitized from scanned, georeferenced 1:24000 maps during the 2017 Faculty Research Sprint held at the University of Minnesota. | |||
| Purpose | Many streams and other hydrologic features that were present in the Twin Cities at the time of the original land survey were channelized, covered, or filled during the late 1800's. These features, however, still function as water conduits within the hydrology systems of urban water and have immense importance to the water regime in the Twin Cities. This data was generated as part of a larger "Lost Waters" research project - aiming to create a visible, physical representation of these waters in the current urban landscape. | |||
| Time Period of Content Date | ||||
| Currentness Reference | 1848 - 1858 | |||
| Progress | ||||
| Maintenance and Update Frequency | Unknown | |||
| Spatial Extent of Data | Minneapolis and St. Paul, Minnesota | |||
| Bounding Coordinates | -93.3537 -92.9640 45.0514 44.8608 | |||
| Place Keywords | Minneapolis, St.Paul, Twin Cities | |||
| Theme Keywords | inlandWaters, hydrology, lakes, streams, wetlands, historical waters, lost waters, sustainable landuse, urban | |||
| Theme Keyword Thesaurus | ISO 19115 Topic Category | |||
| Access Constraints | Attribution-NonCommercial 3.0 United States (CC BY-NC 3.0 US) | |||
| Use Constraints | You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. | |||
| Contact Person Information | Richard B. Strong,
Senior Research Fellow University of Minnesota 1425 University Avenue SE, Suite 140 Minneapolis, MN 55455 Phone: 612-624-7327 Email: stron081@umn.edu | |||
| Browse Graphic | None available | |||
| Associated Data Sets | ||||
| Section 2 | Data Quality | |||
| Attribute Accuracy | ||||
| Logical Consistency | No integrity tests were conducted | |||
| Completeness | Hydrologic features which appeared on the land survey maps within the temporal and spatial extent of the study were digitized. The boundaries of hydrologic features vary with climate patterns and thus the snapshot of the landscape provided by the survey may have excluded some historic hydrologic features. | |||
| Horizontal Positional Accuracy | ||||
| Lineage | Scanned maps from the original public land survey of the Twin Cities were downloaded from Minnesota IT Services Geospatial Information Office. These georeferenced images of 1:24000 maps were provided in the NAD 1983 geographic coordinate system (EPSG:4269). Three researchers and staff from the Unversity of Minnesota digitzed features related to streams, lakes, and wetlands in ArcMap using the "Create Features" tool in the editor toolbar. The digitized layers for each type of water feature were merged together, converted into shapefiles, and reprojected into the WGS 1984 Web Mercator Auxiliary Sphere projection (EPSG: 3857). Source: http://www.mngeo.state.mn.us/chouse/GLO/ | |||
| Section 3 | Spatial Data Organization (not used in this metadata) | |||
| Section 4 | Coordinate System | |||
| Horizontal Coordinate Scheme | ||||
| Horizontal Datum | WGS84 | |||
| Horizontal Units | ||||
| Section 5 | Attributes | |||
| Overview | OBJECTID = an ID field automatically generated by the editing tool
Date = an approximate date for the map from which the hydrologic feature was digitized Name = the name of the hydrologic feature, if recorded on the map MapName = the name for the map series ModernName = the current name (as of 2017) for the hydrologic feature, if known Shape_Leng = a field automatically generated for each object within the geodatabase (meters, calculated based on EPSG:4269) Shape_Area = a calculation of the polygon's area automatically generated for each object within the geodatabase (meters, calculated based on EPSG:4269) | |||
| Detailed Citation | ||||
| Table Detail: | ||||
| Section 6 | Distribution | |||
| Publisher | University of Minnesota | |||
| Publication Date | 09/13/2017 | |||
| Contact Person Information | Spatial Data Curator,
University of Minnesota 309 19th Ave S, S76 O Meredith Wilson Library Minneapolis, MN 55455 Phone: 612-301-3932 Email: datarepo@umn.edu | |||
| Distributor's Data Set Identifier | http://hdl.handle.net/11299/190187 | |||
| Distribution Liability | There is no guarantee or representation to the user as to the accuracy, currency, suitabilty, or reliability of this data for any purpose. The user accepts the data "as is." | |||
| Ordering Instructions | ||||
| 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 | 09/22/2017 | |||
| Contact Person Information | Spatial Data Curator,
University of Minnesota 309 19th Ave S, S76 O Meredith Wilson Library Minneapolis, MN 55455 Phone: 612-301-3932 Email: datarepo@umn.edu | |||
| 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 | |||