{ "snippet": "This dataset represents a comprehensive statewide inventory of Mississippi Building Footprints, integrated with LIDAR-derived Ground Elevation and Parcel Information.\nThe primary purpose is to provide an identification and spatial location of structures supporting certain analysis for the following:\n\u2022 Emergency Management & Flood Mapping: Flood Risk Analysis, Disaster Damage Assessment, and Vulnerability Mapping.\n\u2022 Urban Planning and Development: Land Use Analysis and Infrastructure Development.\n\u2022 State and Local Agencies: High-Level Geospatial Analysis and Decision-Making Purpose.", "summary": "This dataset represents a comprehensive statewide inventory of Mississippi Building Footprints, integrated with LIDAR-derived Ground Elevation and Parcel Information.\nThe primary purpose is to provide an identification and spatial location of structures supporting certain analysis for the following:\n• Emergency Management & Flood Mapping: Flood Risk Analysis, Disaster Damage Assessment, and Vulnerability Mapping.\n• Urban Planning and Development: Land Use Analysis and Infrastructure Development.\n• State and Local Agencies: High-Level Geospatial Analysis and Decision-Making Purpose.", "extent": [ [ -91.6895892877169, 30.193008164707 ], [ -88.0977695795708, 35.0053999676205 ] ], "accessInformation": "Microsoft, BING, MARIS", "thumbnail": "thumbnail/thumbnail.png", "maxScale": 1.7976931348623157E+308, "typeKeywords": [ "ArcGIS", "ArcGIS Server", "Data", "Map Service", "Service" ], "description": "
This dataset provides a statewide collection of building footprint polygons for Mississippi. The core geometry was derived from BING Raster imagery by Microsoft. MARIS obtained the original dataset in JSON format and converted it to a WGS84 Geographic Coordinate System shapefile using MapShaper software. The dataset was subsequently reprojected into the NAD 1983 Mississippi Transverse Mercator (MSTM) coordinate system (Meters). The 2022 release contains approximately 1,507,496 building footprint polygons statewide.<\/span><\/span><\/p> Key Components:<\/span><\/span><\/p> Geometry<\/span><\/span>: The dataset contains <\/span><\/span>over 1.5 million structure<\/span><\/span> polygons representing various building footprints. After quality control, the dataset was reduced to <\/span><\/span>1,502,581<\/span><\/span> structures by removing approximately 4,900 footprints located outside the state boundary and 15 polygons that were inaccurately positioned on roadways.<\/span><\/span><\/p><\/li> Elevation Integration:<\/span><\/span> Each polygon has been attributed with Z-values derived from statewide LIDAR datasets. This includes calculated values such as Ground Elevation (at the base of the structure).<\/span><\/span><\/p><\/li> Parcel Linkage:<\/span><\/span> <\/span><\/span>Footprints are spatially joined to the Statewide Cadastral Framework, providing a link between physical structures and county tax assessor records (Parcels).<\/span><\/span><\/p><\/li> Coordinate System:<\/span><\/span> Projected in <\/span><\/span>Mississippi State TM (MSTM)<\/span><\/span>.<\/span><\/span><\/p><\/li><\/ul> Data Lineage & Processing: <\/span><\/span>The original Microsoft footprints were extracted using automated computer vision techniques and subsequently underwent a series of workflows. Users should be aware that while the data is highly comprehensive, accuracy is dependent on the date of the source imagery and LIDAR Dataset. <\/span><\/span><\/p>