Publication Details
- Title:
- High resolution land cover for Mecklenburg County, NC (2012)
- Author(s):
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University of Vermont Spatial Analysis Laboratory - Publication Year:
- 2013
- How to Cite:
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If you use these data in a publication, presentation, or other research product please use the following citation:
University of Vermont Spatial Analysis Laboratory. 2013. High resolution land cover for Mecklenburg County, NC (2012). Burlington, VT: University of Vermont Spatial Analysis Laboratory. https://gis.w3.uvm.edu/utc/Landcover/Mecklenburg_County.zip
- Abstract:
- High resolution land cover dataset for Mecklenburg County. Seven land cover classes were mapped: (1) tree canopy, (2) grass/shrub, (3) bare earth, (4) water, (5) buildings, (6) roads, and (7) other paved surfaces. The minimum mapping unit for the delineation of features was set at 3.33 feet square . The primary sources used to derive this land cover layer were 2012 LiDAR data and 2012 NAIP CIR imagery. Ancillary data sources included GIS data (Buildings, roads, sidewalks, hydrography, railroads) provided by Mecklenburg County. This land cover dataset is considered current as of 2012. Object-based image analysis techniques (OBIA) were employed to extract land cover information using the best available remotely sensed and vector GIS datasets. OBIA systems work by grouping pixels into meaningful objects based on their spectral and spatial properties, while taking into account boundaries imposed by existing vector datasets. Within the OBIA environment a rule-based expert system was designed to effectively mimic the process of manual image analysis by incorporating the elements of image interpretation (color/tone, texture, pattern, location, size, and shape) into the classification process. A series of morphological procedures were employed to insure that the end product is both accurate and cartographically pleasing. No accuracy assessment was conducted, but the dataset was subject to a thorough manual quality control. More than 5000 corrections were made to the classification.
- Keywords:
- environment; imageryBaseMapsEarthCover; planningCadastre; Environment and People; Urban natural resources management; Natural Resource Management & Use; urban tree canopy; UTC; land cover; North Carolina; Mecklenburg County
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