The proper use and citation of imagery and products will vary according to source, and detailed information is provided in the sections below. Disclaimer: this is an historic version of NLCD provided for research and citation purposes. An official website of the United States government. The National Land Cover Database (NLCD) serves as the definitive Landsat-based, 30-meter resolution, land cover database for the Nation. 3.2 The basis for a new approach 3.2.1 Definition adopted for land cover. Land Cover. You can find the latest suite of synced products at www.mrlc.gov. 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. Published Dec 02, 2020. Some datasets available through the USGS EROS archives are hosted and distributed based on partnership or other agreement with an external (non-USGS) source. See the USGS Visual Identity System Guidance for further details on proper citation and acknowledgement of USGS products. These products provide spatially explicit and reliable information on the Nation’s land cover and land cover change. Some of those products also have value as independent products and are provided here. 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. Land cover and its change analysis across the Hindu Kush Himalayan (HKH) region is realized as an urgent need to support diverse issues of environmental conservation. LockA locked padlock Most of the images, data, and related products available from the USGS Earth Resources Observation and Science (EROS) Center, which also contains the NASA Land Processed Distributed Active Archive Center (LP DAAC), are federally created data and therefore reside in the public domain and may be used, transferred, or reproduced without copyright restriction. × After completion of the 2001 land cover, biennial updates have been done using a disturbance database to identify areas of change. Land cover and canopy cover maps from the 2011 National Land Cover Database (NLCD) (Homer et al. Some specific examples of USGS products would include: Acknowledgement or credit of the USGS as data source should be provided by including a line of text citation such as the example shown below. NLCD 2006 is the most recent 30-meter, seamless, wall-to-wall land cover database for the conterminous United States. The USGS, in collaboration with the Bureau of Land Management, has produced projected rangeland fractional cover products for Western U.S. The spatial resolution of the data is 30 meters and mapped in the Albers Conic Equal Area projection, NAD 83. The USGS EROS Center supports delivery and access systems for a variety of NASA’s LP DAAC science datasets. 2001 Base Mapping. Overview; EROS is central to the creation of the National Land Cover Database (NLCD), which is updated every five years and stands as the definitive land cover database for the United States. The EEA technical guidelines were followed for production using the InterChange support package for mapping CLC changes, and revising the 2006 map. Environmental Management}, year = {}} Secure .gov websites use HTTPS ) or https:// means you’ve safely connected to the .gov website. The National Land Cover Database (NLCD) serves as the definitive Landsat-based, 30-meter resolution, land cover database for the Nation. NLCD 2016 Available Now! BibTeX @MISC{Nowak_evaluatingthe, author = {D. J. Nowak and E. J. Greenfield}, title = {Evaluating the national land cover database tree canopy and impervious cover estimates across the conterminous United States: a comparison with photo-interpreted estimates. The National Land Cover Database for Alaska (NLCD 2001; Homer et al. In this update the landcover footprint was extended along the northern coast to include the islands that were missed in previous versions, and several duplicate roads (offset by 1 or 2 pixels) were removed on the Aleutian Islands. National Land Cover Database. National Land Cover Database 2016 - Landcover & Imperviousness (NLCD2016) National Land Cover Database 2016 - Landcover & Imperviousness (NLCD2016) References. Learn More about LANDFIRE 2012. Projected data include three time periods (2020s, 2050s, and 2080s) and two climate scenarios (Representative Concentration Pathways [RCP] 4.5 and … As part of the next generation NLCD 2016 mapping process, the NLCD research team developed a suite of intermediate products that were used to generate the final NLCD Land Cover products. NLCD2006 is based primarily on the unsupervised classification of Landsat Enhanced Thematic Mapper+ (ETM+) circa 2006 satellite data. 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. 5. IKONOS. Specific examples of LP DAAC datasets would include: The appropriate citation of NASA’s LP DAAC datasets are product-specific and should follow the Digital Object Identifier (DOI) string standard. Science Center Objects . 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 National Land Cover . A .gov website belongs to an official government organization in the For additional information, please refer to the README file, license file, or other information delivered along with the image product. 1. 2012-3020. Specific examples of non-USGS imagery or data products include: Users may still acknowledge or cite any non-USGS dataset according to the format listed under USGS Products with some modification. The common integrated approach adopted here defines land cover as the observed (bio)physical cover on the earth's surface (see Section 2.1, above), but, in addition, it is emphasized that land cover must be considered a geographically explicit feature that other disciplines may use as a geographical reference (e.g. Derived from the early to mid-1990s Landsat Thematic Mapper satellite data, the National Land Cover Data (NLCD) is a 21-class land cover classification scheme applied consistently over the United States. These products provide spatially explicit and reliable information on the Nation’s land cover and land cover change. Share sensitive information only on official, secure websites. The National Land Cover Database (NLCD) 2001 is created by partitioning the U.S. into 66 mapping zones delineated within the conterminous U.S. based on ecoregion, geographical, and other characteristics. This update to the Alaska National Land Cover Database (NLCD) 2016 replaces the files dated 20200213. Landsat Thematic Mapper satellite data are used as the base imagery for the classification. Any questions or comments can be directed toward USGS EROS User Services. Visit the full site . Request PDF | On Jan 1, 2012, C.H. Provide operational users of EROS products and services with an opportunity and platform to discuss opinions, needs, and concerns in a structured and consistent manner; Provide EROS projects with a consistent platform for targeted communications and opportunity for direct feedback from the user community on product-. The National Land Cover Database products are created through a cooperative project conducted by the Multi-Resolution Land Characteristics (MRLC) Consortium. The purpose of the EROS User Group (EUG) is three-fold: Geographic Names Information System (GNIS), Mapping, Remote Sensing, and Geospatial Data, Earth Resources Observation and Science (EROS) Center, Earth Resources Observation and Science Center, Advanced Spaceborne Thermal Emission and Reflection Radiometer (, Moderate Resolution Imaging Spectroradiometer (, Visible Infrared Imaging Radiometer Suite (, Making Earth System Data Records for Use in Research Environments (. 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. NLCD (the National Land Cover Database) is a 30-m Landsat-based land cover database spanning 8 epochs (1992, 2001, 2004, 2006, 2008, 2011, 2013 and 2016). C-CAP data forms the coastal expression of the National Land Cover Database (NLCD) and the A-16 land cover theme of the National Spatial Data Infrastructure. For any dataset, the specific construction of the correct citation information can be found on the Data Landing page for each individual product and can be accessed below: For further details and information on the proper citation and acknowledgment of LP DAAC products, please refer to Citing Our Data. The National Land Cover Database (NLCD) serves as the . Find satellite images and data, aerial photography, elevation and land cover datasets, digitized maps, and our Image Gallery collections. These products must be used together for correct analysis. 3. When using any imagery, data products, or information accessed from USGS or NASA’s LP DAAC systems, we do ask that proper credit be given. The last update of the National Land Cover Map stems from 2007 (LCM2007) and is closer to the CLC2006 status database than the new update reference. NLCD supports a wide variety of Federal, State, local, and nongovernmental applications that seek to assess ecosystem status and health, understand the spatial patterns of biodiversity, predict effects of climate change, and develop land management policy. Please read the product descriptions to understand what the product represents. 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. This study presents the first and most complete national land cover database of Nepal prepared using public domain Landsat TM data of 2010 and replicable methodology. Database (NLCD) land cover layer is one of several primary and supplementary layers in NLCD 2006. 1992 data are primarily based on unsupervised classification of Landsat data, while the rest of the images rely on the imperviousness data layer for the urban classes and on a decision-tree classification for the rest. All NLCD data products are available for download at no charge to the public from the MRLC Web site: http://www.mrlc.gov. United States. Nationwide coverage, including Alaska, Hawaii, and Puerto Rico. The National Land Cover Database (NLCD) provides thematic land cover and land cover change data at 30-meter spatial resolution for the United States. With the 2016 release, the intended snapshot interval is 2-3 years, beginning with 2001. The USGS EROS Center systems provide access to a variety of products from USGS sources. (Product, Image, Photograph, or Dataset Name) courtesy of the U.S. Geological Survey. Fact Sheet National Land Cover Database 2011 (NLCD 2011) is the most recent national land cover product created by the Multi-Resolution Land Characteristics (MRLC) Consortium. NLCD data are public domain, and may be freely downloaded from the MRLC website. Projected NLCD Rangeland Cover Products Through 2080 – Now Available. The use of standardized data and procedures assures consistency through time and across geographies. Explore recent publications by USGS authors, Browse all of Pubs Warehouse by publication type and year, Descriptions of US Geological Survey Report Series, Earth Resources Observation and Science (EROS) Center. Different release dates of NLCD cannot be used with other release dates for correct analysis. Explore the world’s largest civilian collection of images of the Earth’s surface. This map was created by the Environmental Protection Agency to delineate the Chesapeake Bay and the land cover that can be found in this area. 30 meter raster, with cells classified into one of 21 land cover classes. 2. National Land Cover Database 2011 (NLCD 2011) is the most recent national land cover product created by the Multi-Resolution Land Characteristics (MRLC) Consortium. Homer and others published The National Land Cover Database | Find, read and cite all the research you need on ResearchGate The United States National Land Cover Database (NLCD) was initiated during this era to bring national large-area land cover classification to a medium resolution (30-m) in order to make land cover information more relevant to national applications (Vogelmann et al., 2001). Commercial satellite imagery (e.g. Each release of NLCD generates a complete set of directly comparable products. 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