3) Wetlands classes are extremely difficult to extract from Landsat TM spectral information alone. NLCD 1992, NLCD 2001, NLCD 2006, and NLCD 2011 are National Land Cover Database classification schemes based primarily on Landsat data along with ancillary data sources, such as topography, census and agricultural statistics, soil characteristics, wetlands, and other land cover maps. USGS National Land Cover Data 1992 (NLCD 92) NLCD 92 data by State ... USGS CTG Land Use/Land Cover (LULC) Data . Additional information about the National Land Cover Dataset (NLCD) can found at URL: . 4) Separation of natural grass and shrub is problematic. Originator: Multi-Resolution Land Characteristics (MRLC) Consortium - USGS, EPA, NOAA, BLM, NASA, NPS, USDA-NASS, USFWS, US Army COE. These areas are not subject to intensive management, but are often utilized for grazing. A geographically stratified random sampling is performed with one photograph from the National Aerial Photography Program photo being randomly selected from each cell (geographic strata), if a sampled photograph falls outside of the regional boundary it is not used. 14. Pasture or Hay - Areas of grasses, legumes, or grass-legume mixtures planted for livestock grazing or the production of seed or hay crops. Digital land cover and terrain data of the Arctic National Wildlife Refuge (ANWR) were prduced by the U.S. Geological Survey (USGS) Earth Resources Observation Systems Field Office, Anchorage, Alaska for the U.S. •USGS/EPA National Land Cover Dataset (NLCD) •DOI/USDA LANDFIRE Program •Western States Consumptive Water Use •NOAA Coastal Change Analysis Program •Global Forest Watch Forest Change Products Landsat is the most widely used land remote sensing data source within Federal civil agencies Low Intensity Residential - Includes areas with a mixture of constructed materials and vegetation. There are 15 categories of land use shown in this data set when the associated layer file (LAND_COVER_2006_USGS_IN.LYR) is loaded. Land Cover The National Land Cover Database (NLCD) provides nationwide data on land cover and land cover change at a 30m resolution with a 16-class legend based on a modified Anderson Level II classification system. Fish and Wildlife Service (USFWS). Emergent Herbaceous Wetlands - Areas where perennial herbaceous vegetation accounts for 75 to 100 percent of the cover and the soil or substrate is periodically saturated with or covered with water. Much emphasis was put on GAP, LUDA, or proximity to streams and rivers as well as spectral data to delineate wetlands in areas without NWI data. The use of ancillary information such as National Wetlands Inventory data is highly desirable. Transitional - Areas of sparse vegetative cover (less than 25 percent that are dynamically changing from one land cover to another, often because of land use activities. The U.S. Geological Survey (USGS), in partnership with several federal agencies, has developed and released four National Land Cover Database (NLCD) products over the past two decades: NLCD 1992, 2001, 2006, and 2011. The National Land Cover Dataset (NLCD) was produced as a cooperative effort between the U.S. Geological Survey (USGS) and the U.S. Environmental Protection Agency (US EPA) to produce a consistent, land cover data layer for the conterminous U.S. using early 1990s Landsat thematic mapper (TM) data purchased by the Multi-resolution Land Characterization (MRLC) Consortium. Note: download the data files labeled "grid_cell". 8. This raster spatial layer contains land cover information from the 1992 National Land Cover Dataset (NLCD) and was constructed to show land cover and land use in the upper Washita River basin in southwestern Oklahoma. The map legend based on NatureServe’s ecological system classification scheme provides detailed information on the vegetation types at a plant community level. Selected scenes were geometrically and radiometrically corrected, then combined into s… The land cover values were reclassified and numbered 1 to 20. Quarries, Strip Mines, or Gravel Pits - Areas of extractive mining activities with significant surface expression. The first version of NLCD--NLCD 92--was produced for subsets of ten federal regions that make up the conterminous United States. USGS 2001 National Landcover - Download Data data 71 views Download data Link is ok Openness score. The data analyst assumes that there is a temporal window during which hay and pasture green up before most other annual or perennial vegetation. NLCD provides spatial reference and descriptive data for characteristics of the land surface such as thematic class (for example, urban, agriculture, and forest), percent impervious surface, and percent tree canopy cover. NLCD provides spatial reference and descriptive data for characteristics of the land surface such as thematic class (for example, urban, agriculture, and forest), percent impervious surface, and percent tree canopy cover. The statistical accuracy of the data is known only for the region. Learn more about NLCD 2011 >> Why are these data important? 9. The U.S. Geological Survey (USGS), in partnership with several federal agencies, has developed and released four National Land Cover Database (NLCD) products over the past two decades: NLCD 1992, 2001, 2006, and 2011. The 2012 dataset is based on a slightly modified version of the National Land Cover Database 2011 (NLCD 2011) that was recoded to a schema of land uses, and mapped back in time to develop datasets for the four earlier eras. The Land Cover Data - Version 1.0 represents a highly thematically detailed land cover map of the U.S. The GAP/LANDFIRE National Terrestrial Ecosystems data layer provides detailed information about the vegetation of the United States. USGS 2006 National Landcover Metadata Updated: February 27, 2019 The National Land Cover Database products are created through a cooperative project conducted by the Multi-Resolution Land Characteristics (MRLC) Consortium. MCD12Q2 MODIS/Terra+Aqua Land Cover Dynamics Yearly L3 Global 500m SIN Grid V006 [Data set]. The National Land Cover Database products are created through a cooperative project conducted by the Multi-Resolution Land Characteristics (MRLC) Consortium. This service is designed to provide a seamless view of TNM data in a geographic information system (GIS) accessible format. Vegetation may account for 20 to 70 percent of the cover. These areas most commonly include single-family housing units. 12. Commercial, Industrial, or Transportation - Includes infrastructure (roads, railroads) and all highways and all developed areas not classified as High Intensity Residential. NASA EOSDIS Land Processes DAAC. Additional products include percent developed impervious, percent tree canopy, and land cover change. National Land Cover Database 2006 (NLCD2006) is a 16-class land cover classification scheme that has been applied consistently across the conterminous United States at a spatial resolution of 30 meters. High Intensity Residential - Includes heavily built up urban centers where people reside in large numbers. Shrub cover is generally greater than 25 percent when tree cover is less than 25 percent. However, if leaf-off data acquisition is not temporally ideal (e.g., the greenness level of hay/pasture areas is low), it may result in misclassification between hay/pasture and other agricultural lands. “National Land Cover Database 2011 (NLCD 2011) is the most recent national land cover product created by the Multi-Resolution Land Characteristics (MRLC) Consortium. Open Water - areas of open water, generally with less than 25 percent or greater cover of water (per pixel). Data themes included are Boundaries, Geographic Names, Transportation, Contours, Hydrography, Land Cover, Shaded Relief, and Bathymetry. Image Dimensions: 720 x 474 The Natural Terrestrial Ecosystems Viewer allows the user to explore the land cover data for the conterminous United States. Similar problems exist within agricultural classes due to crop rotations. The data in NLCD 2011 are completely integrated with NLCD 2001 (2011 Edition) and NLCD 2006 (2011 Edition). National Land Cover Database 2011 (NLCD 2011) is the most recent national land cover product created by the Multi-Resolution Land Characteristics (MRLC) Consortium. Access to land cover resources including a Factsheet and information about other land cover mapping efforts. Visually checked against land use and land cover data sets. Visit page . More information about the NLCD can be found at URL: . Figure 1. 16. Urban or Recreational Grasses - Vegetation (primarily grasses) planted in developed settings for recreation, erosion control, or aesthetic purposes. The National Land Cover Database (NLCD) serves as the definitive Landsat-based, 30-meter resolution, land cover database for the Nation. The class numbers shown below represent the original digital values of the classes in the NLCD data set. NOTE - All classes may NOT be represented in a specific state data set. Thus, the reliability of the data is greatest at the state or multi-state level. Links to access GAP/LANDFIRE National Terrestrial Ecosystems 2011 Data, Metadata and Web Services. Yup, you can get land cover data for the whole USA enchilada. Projected NLCD Rangeland Cover Products Through 2080 – Now Available. These products provide spatially explicit and reliable information on the Nation’s land cover and land cover change. 2001 National Land Cover Data Set Positives of the USGS 2001 National Land Cover Data Set Low accuracy for classes related to land use is understandable. The Digital Object Identifier (DOI) for the data product is given below. Originator: U.S. Geological Survey EROS data center Publication_Date: 2000 Title: LandCover_key -- National Land Cover Data Set key ... National Land Cover Dataset. Visually checked against land use and land cover data sets. NLCD 2011 provides - for the first time - the capability to assess wall-to-wall, spatially explicit, national land cover changes and trends across the United States from 2001 to 2011. Fish and Wildlife Service, Department of the Interior, Washington, D.C., 191 p. 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