EnviroAtlas - Baltimore, MD - Meter-Scale Urban Land Cover (MULC) Data

The Baltimore, MD EnviroAtlas Meter-scale Urban Land Cover (MULC) dataset comprises 4,545 km2 around the city of Baltimore and portions of surrounding counties. These MULC data and maps were derived from LiDAR and 1-m pixel, four-band (red, green, blue, and infrared light) leaf-on aerial photography acquired from the United States Department of Agriculture (USDA) National Agriculture Imagery Program (NAIP) as well as ancillary vector data (e.g., roads, building footprints). Seven land cover classes were mapped: Water, Impervious Surfaces, Soil/Barren, Trees, Grass/Herbaceous, Agriculture, and Wetlands (Woody and Emergent). Wetlands were delineated using the best available existing wetlands data, which was a National Wetlands Inventory (NWI) layer from the years 1981, 1999, and 2013 (http://wetlands.fws.gov). An analysis of about 600 completely random and 90 stratified random photo-interpreted land cover reference points yielded a simple overall user's accuracy (MAX) of 90% and an overall fuzzy user's accuracy (RIGHT) of 93% within the census block group boundary (see confusion matrices below). These data were developed as part of the Chesapeake Bay High-Resolution Land Cover Project, a cooperative agreement between the Chesapeake Conservancy and the National Park Service, funded through an interagency agreement with the Environmental Protection Agency (EPA). The Chesapeake Conservancy, under the direction of Margaret Markham, created the initial statewide 1-meter land cover data. EPA added agriculture and wetlands taken from ancillary data sources. See detailed processing steps and workflow below. This dataset was produced by the Chesapeake Conservancy, the National Park Service, and the US EPA to support research and online mapping activities related to EnviroAtlas. EnviroAtlas (https://www.epa.gov/enviroatlas) allows the user to interact with a web-based, easy-to-use, mapping application to view and analyze multiple ecosystem services for the contiguous United States. The dataset is available as downloadable data (https://edg.epa.gov/data/Public/ORD/EnviroAtlas) or as an EnviroAtlas map service. Additional descriptive information about each attribute in this dataset can be found in its associated EnviroAtlas Fact Sheet (https://www.epa.gov/enviroatlas/enviroatlas-fact-sheets).

                                            {
  "fn": "U.S. Environmental Protection Agency, Office of Research and Development-Sustainable and Healthy Communities Research Program, EnviroAtlas",
  "@type": "vcard:Contact",
  "hasEmail": "mailto:enviroatlas@epa.gov"
}
                                        

                                            []
                                        

                                            [
  "Ecosystem",
  "Environment",
  "Agriculture",
  "Ecology",
  "Ecosystem",
  "Ecosystem Services",
  "EnviroAtlas",
  "Environment",
  "Environmental Atlas",
  "Exposure",
  "Health",
  "Impact",
  "Land",
  "Land Cover",
  "Natural Resources",
  "Recreation",
  "Surface Water",
  "Water",
  "Wetlands",
  "Maryland",
  "Baltimore, MD"
]
                                        

                                            []
                                        

                                            {
  "name": "U.S. EPA Office of Research and Development (ORD) - National Exposure Research Laboratory (NERL)",
  "@type": "org:Organization"
}