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St. Louis River Habitat Map orthomosaic drone imagery, Minnesota and Wisconsin 2024
- Identification Information
- Spatial Reference Information
- Data Quality Information
- Distribution Information
- Content Information
- Spatial Representation Information
- Metadata Reference Information
Identification Information
- Citation
- Title
- St. Louis River Habitat Map orthomosaic drone imagery, Minnesota and Wisconsin 2024
- Originator
- Wisconsin State Cartographer's Office
- Publication Date
- 2025-06-30
- Geospatial Data Presentation Form
- mapDigital
- Collection Title
- Coastal
- Other Citation Details
- Flight dates: 8/22/24: Weasel and North Bays MSP 8/23/24: Pokegama MSP, Rask Bay MSP part 1 8/26/24: Rask Bay MSP part 2, Weasel and North Bays RGB 8/27/24: Nemadji MSP part 1 8/29/24: Nemadji MSP part 2 9/5/24: Pokegama RGB 9/9/24: Nemadji partial RGB
- Abstract
- This collection of orthomosiacs were produced by the University of Minnesota's Natural Resources Research Institute (NRRI) for the National Estuarine Research Reserve System (NERRS) mapping project, led by a collaboration between the Lake Superior Reserve, the University of Wisconsin-Madison State Cartographer's Office, and U-Spatial at the University of Minnesota. The purpose of the UAV flights was to gather high resolution imagery for certain locations within the St. Louis River Estuary to assist with vegetation class identification.The source imagery for the raster (TIFF format) mosaics were collected in August and September 2024 (flight dates below) with the WingtraOne Gen2 fixed-wing drone equipped with the Sony a6100 RGB camera or MicaSense RedEdge-P multispectral (MSP) camera. All flights occurred under fully cloudy conditions except for the final flight day (Nemadji RGB). MSP imagery collection was prioritized. Spectral bands collected include red, green, blue, red-edge, near infrared, and panchromatic. With the multispectral camera, the drone was flown at an altitude of 386 feet, resulting in a ground sampling distance of 3.7 cm. With the RGB camera, the drone was flown at an altitude of 394 feet, resulting in a ground sampling distance of 2.2 cm. PPK service provided by MNCors was utilized for accuracy corrections.Imagery were orthorectified and mosaicked using Pix4DFields mapping software. Pix4DFields was also used to calculate the normalized vegetation difference index (NDVI) and surface model elevation (meters above mean sea level) rasters.
- Purpose
- This collection of orthomosiacs were produced by the University of Minnesota's Natural Resources Research Institute for the National Estuarine Research Reserve System (NERRS) mapping project, led by a collaboration between the Lake Superior Reserve, the University of Wisconsin-Madison State Cartographer's Office, and U-Spatial at the University of Minnesota. The purpose of the UAV flights was to gather high resolution imagery for certain locations within the St. Louis River Estuary to assist with vegetation class identification.
- Supplemental Information
- This is an archived copy of the data held at UW-Madison
- Temporal Extent
- Time Period
- Begin
- 2024-08-22T00:00:00
- End
- 2024-09-09T00:00:00
- Bounding Box
- West
- -92.256163
- East
- -92.230113
- North
- 46.655424
- South
- 46.644407
- ISO Topic Category
- biota
- environment
- imageryBaseMapsEarthCover
- Place Keyword
- Wisconsin
-
Minnesota
- Place Keyword Thesaurus
- Theme Keyword
- Habitat
-
Coastal
- Theme Keyword Thesaurus
- Resource Constraints
- Use Limitation
- Although this data is being distributed by the University of Wisconsin-Madison, no warranty expressed or implied is made by the University as to the accuracy of the data and related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the University in the use of this data, or related materials.
- Maintenance and Update Frequency
- unknown
- Language
- eng
- Credit
- This work was sponsored by the National Estuarine Research Reserve System Science Collaborative, which supports collaborative research that addresses coastal management problems important to the reserves. The Science Collaborative is funded by the National Oceanic and Atmospheric Administration and managed by the University of Michigan Water Center (NA19NOS4190058).
- Point of Contact
- Contact
- Kristi Nixon
- Position Name
- GIS Specialist
- Point of Contact
- Contact
- Howard Veregin
- Position Name
- State Cartographer
Spatial Reference Information
- Reference System Identifier
- Code
- 32615
- Code Space
- EPSG
- Version
- 9.8.8(3.0.1)
Data Quality Information
- Lineage
- Process Step
- Description
- Adding data to UW-Madison geospatial archive.
- Process Date
- 2025-06-30T00:00:00
Distribution Information
- Format Name
- Raster Dataset
- Online Access
- https://web.s3.wisc.edu/rml-gisdata/St_Louis_River_Habitat_Map_2025
- Protocol
- WWW:DOWNLOAD-1.0-http--download
- Name
- GeoData@Wisconsin
- Function
- download
Content Information
- Content Type
- image
Spatial Representation Information
- Raster
- Number of Dimensions
- 2
- Column Count
- 50272
- Row Count
- 30569
- Cell Geometry Type
- area
- Corner Points
- Point
- 556924.432335 5165937.335051
- Point
- 556924.432335 5167142.542565
- Point
- 558906.446537 5167142.542565
- Point
- 558906.446537 5165937.335051
- Center Point
- 557915.439436 5166539.938808
Metadata Reference Information
- Hierarchy Level
- dataset
- Metadata File Identifier
- A2B11A46-9B56-4187-8B60-A2C0DF6D193B
- Metadata Point of Contact
- Name
- Kristi Nixon
- Position Name
- GIS Specialist
- Metadata Date Stamp
- 2025-06-30
- Metadata Standard Name
- ISO 19139 Geographic Information - Metadata - Implementation Specification
- Metadata Standard Version
- 2007
- Character Set
- utf8
