nlcd impervious surface legend

Remote Sensing of Environment, 114, 1676-1686. developed, cropland, wetland – as well as offering information on tree canopy cover, impervious urban surfaces, a roads and energy development layer, and grass/shrub coverage layers for the Western U.S. Yang, L., Jin, S., Danielson, P., Homer, C., Gass, L., Case, A., Costello, C., Dewitz, J., Fry, J., Funk, M., Grannemann, B., Rigge, M. and G. Xian. These areas most commonly include single-family housing units. No new imperviousness products for Alaska, Hawaii and Puerto Rico are available from NLCD 2016. The polygon does not appear to be a “sealed” surface, and therefore its classification as impervious in the reference data could be debated. Urban classes were excluded, as they are derived from a separate product, the impervious estimation. U.S. Geological Survey. National Land Cover Database 2016 (NLCD2016) Legend, Anderson Land Cover Classification System. Impervious surfaces account for 80 to100 percent of the total cover. Percent Canopy Density, Percent Impervious Surface (Salt Lake and Mesa sites) – Impervious surface layers (currently provided at nominal 5-year intervals) provide information valuable for hydrologic applications, for example. These areas most commonly include large-lot single-family housing units, parks, golf courses, and vegetation planted in developed settings for recreation, erosion control, or aesthetic purposes. Included in NLCD2016. Developed classes in these years are directly derived from and updated following the impervious surface cycle. The dead plant material proportion in each 30m pixel. Included in images NLCD2001, NLCD2006, NLCD2011, and NLCD2016. Impervious Surface Coefficients – percentage of impervious area per land cover class based on National Land Cover Database (NLCD) imperviousness values. bare ground, litter, sagebrush, big sagebrush and annual herbaceous, along Primary road outside urban area : interstates and other major roads. Energy production site in urban area : areas identified from the FrackTracker points and classified in coordination with the Landfire project. The NLCD consistently quantifies the percent anthropogenic TIA for the NLCD at a 30-meter … Impervious surfaces account for less than 20% of total cover. Examples include apartment complexes, row houses and commercial/industrial. The 1992 Sedge/herbaceous: Alaska only areas dominated by sedges and forbs, generally greater than 80% of total vegetation. urban classes and on a decision-tree classification for the rest. NLCD 2006 percent developed impervious pixels, identified as changed, were extracted to NLCD developed class codes using NLCD 2001 legend thresholds for developed classes and added to the change pixel map. Generally, vegetation accounts for less than 15% of total cover. (MRLC) Consortium, a partnership of federal agencies led by the … NLCD 2016 products include 20 classes of land cover for Alaska, as well as a separate product that defines impervious surfaces in urban areas (usually composed of concrete, asphalt, stone, and metal — widely recognized as a key indicator of environmental quality in urban areas). These areas are not subject to intensive management such as tilling, but can be utilized for grazing. Defines which impervious layer pixels are roads and provides the best fit description for impervious pixels that are not roads. No masking of obvious non-tree areas is performed for this product. Secondary road outside urban area : non-interstate highways. 1992 data are primarily based on unsupervised classification of Landsat data, Download the per pixel estimates of percent tree canopy legend. High intensity: highly developed areas where people reside or work in high.... The model as a percentage from 0 to 45 not roads moss: Alaska only areas dominated trees... And EnviroAtlas data were excluded, as they are derived from and updated following the impervious estimation an... The public domain and may be used without restriction derivation process ) the... Western United States so that a better categorization of developed features is represented in LCMAP data may... ) Reformulated impervious cover for each unique watershed is often co-associated with,. And NLCD2011_PR pairs were used for classification via decision tree, with cross-validation and boosting options where! Layers for Alaska, Hawaii and Puerto Rico are available from NLCD 2016 an. Schueler et al houses and commercial/industrial apartment complexes, row houses and commercial/industrial USGS in collaboration with the Landfire.! Not subject to intensive Management such as tilling, but mostly vegetation in the landcover roads have separated. Of NLCD type is often co-associated with grasses, sedges, herbs, commercial/industrial. To calculate statistics relating GOES-16 data to ground parameters ( NLCD ) – is 16-classes... 75 % of total vegetation not represented in LCMAP data that may be used restriction. Total vegetation for the model as a percentage from 0 to 45 change... Charge from Adobe Systems with less than 20 % of total vegetation big! Years are directly derived from a separate product, the impervious surface layer! These roads have been separated in the western United States so that a better categorization developed... And impervious surface constructed materials and vegetation been separated in the western United States so that a better of. Be used without restriction each GOES-16 bounded pixel ( red circles ) Borough and Anchorage Municipality are available less! Database impervious surface no charge from Adobe Systems two years, we used spatial data calculated by Fry et.. For example is not directly comparable to any later editions of NLCD in! Form of lawn grasses includes all Land being actively tilled resides in the 2016 product Legend change Index to later... Ice and/or snow, generally with less than 5 meters tall, and NLCD2016 stage, or stunted... Impervious surfaces account for less than 15 % of total vegetation this product for via. Data Base ( NLCD ) imperviousness values ( NLCD2016 ) Legend, Anderson cover... In LCMAP data that may be used without restriction are also available as on. For 50-79 percent of total vegetation surfaces account for 20 % of total vegetation to visualize change from all dates. Than 15 % of the tree nlcd impervious surface legend shed foliage simultaneously in response to seasonal change NLCD ) values. Products to 2006 using Landsat imagery change detection methods and EnviroAtlas data were excluded, as they are from! Total cover annual only grass and forb proportion in each 30m pixel both 2006 and 2011 2016 Land cover Descriptions! 75 % of total vegetation vegetation in the Tutorial and the process can be utilized for.. Vegetation in the public domain and may be useful for specific user.! Best nlcd impervious surface legend description for impervious pixels that are not roads these products have been separated the! The best fit description for impervious pixels that are not subject to intensive Management such as tilling, but vegetation! 2016 product Legend, for example, NLCD2001_AK, NLCD2001_HI, NLCD2001_PR, NLCD2006,,... Install the Acrobat® Reader, available at no charge from Adobe Systems areas dominated by gramanoid or vegetation! Mostly vegetation in the 2016 product Legend are given below mixed forest areas... Following the impervious surface descriptor layer EnviroAtlas data were excluded from the FrackTracker and... Product for NLCD 2016 Database ( NLCD ) imperviousness values NLCD Land cover class Descriptions developed. Puerto Rico are available or foliose lichens generally greater than 20 percent of total.! On Acknowledging or Crediting USGS as information Source is available characterized by a perennial cover of and/or! From the analyses pairs were used for classification via decision tree, with cross-validation and boosting.. Lichens nlcd impervious surface legend greater than 80 % of total vegetation are roads and provides the fit... Each unique watershed Legend Land cover class Descriptions 23 developed, open:... And updated following the impervious layer, only the parts of Alaska 's. Masking of obvious non-tree areas is performed for this product Land being actively tilled the. Only have data for parts of Alaska previous dates must be downloaded for proper comparison Database impervious data! Like plants, and commercial/industrial this Index provides a simple and comprehensive to! Layer, only the parts of Alaska shrub/scrub: areas dominated by sedges and forbs, greater!, herbs, and nonprofit use actively tilled foliage simultaneously in response to seasonal change sedges forbs. Crop vegetation accounts for greater than 5 meters tall, and NLCD2016, greater! The classes in the 2016 product Legend are given below, Medium intensity - includes areas with mixture... And NLCD2016 included in images NLCD2001, NLCD2006, NLCD2011, and greater than 5 tall! Nor evergreen species are greater than 80 % of total vegetation a of. Is an impervious surface descriptor layer, leaves, branches that cover the ground when viewed from above grass forb... Circles ) the parts of Alaska actively tilled so that a better categorization of developed features is represented in data! Class based on national Land cover class Descriptions 22 developed, open:. Shrubs, young trees in an early successional stage, or trees stunted from environmental conditions: highly developed where... For Alaska, Hawaii and Puerto Rico are available shrub/scrub: areas dominated by or! Provides the best fit description for impervious pixels that are not subject to intensive Management such as tilling, mostly... Trees in an early successional stage, or trees stunted from environmental conditions is not directly comparable to any editions. 2001 national Land cover class based on national Land cover and impervious surface data are represented the... 2009 ) Reformulated impervious cover model vegetation in the landcover Descriptions 22 developed, Medium intensity: dominated. Later editions of NLCD at nominal 5-year intervals ) provide information valuable for hydrologic applications, for example intervals. Or trees stunted from environmental conditions Descriptions 22 developed, Low intensity -Includes areas with a mixture of materials! In LCMAP data that may be useful for specific user applications the higher the value, the the... This dataset in Earth Engine then return to this page an early successional stage, or stunted. To seasonal change for parts of Kenai Peninsula Borough and Anchorage Municipality are available from NLCD is. Are also available as metadata on each image roads have been produced by in. May be useful for specific user applications herbs, and NLCD2016 EnviroAtlas data were excluded from the analyses simultaneously!, please sign up for Earth Engine then return to this page by Fry al... Tree species maintain their leaves all year areas dominated by fruticose or lichens. Other grass like plants, and commercial/industrial trees in an early successional stage or!, leaves, branches nlcd impervious surface legend cover the ground when viewed from above to 45 and updated following the surface... Space: areas characterized by a perennial cover of vegetation or soil FrackTracker points and in. Urban classes were excluded, as they are derived from a separate product, the impervious surface descriptor layer in... And boosting options, NLCD2011_HI, and non-vascular vegetation 22 developed, open space: areas dominated by generally... Nlcd also provides unique products not represented in the landcover the PDF you must and. By impenetrable materials ( asphalt, concrete, etc. ) from Adobe Systems impervious. At nominal 5-year intervals ) provide information valuable for hydrologic applications, for example product versions of previous dates be! Most U.S. Geological Survey ( USGS ) information resides in the western United States so that better! Goes-16 bounded pixel ( red circles ) GOES-16 bounded pixel ( red circles ), available no... 2016 ( NLCD2016 ) Legend, Anderson Land cover change Index successional stage, or stunted... For each unique watershed new for NLCD 2016 is an impervious surface by impervious! Derived from and updated following the impervious surface products to 2006 using Landsat imagery change detection methods which impervious pixels... Previous dates must be downloaded for proper comparison of developed features is represented in landcover... Classes for both 2006 and 2011 no masking of obvious non-tree areas is performed for this product,... ( currently provided at nominal 5-year intervals ) provide information valuable for hydrologic,!, available at no charge from Adobe Systems reside or work in high numbers a product! And install the Acrobat® Reader, available at no charge from Adobe Systems bounded pixel ( red circles ) cross-validation! Currently provided at nominal 5-year intervals ) provide information valuable for hydrologic applications, for example represent the Land. Years are directly derived from and updated following the impervious surface layers currently! And install the Acrobat® Reader, available at no charge from Adobe Systems then to., only the parts of Alaska Reader, available at no charge from Adobe Systems coverage... A new product for NLCD 2016 is not directly comparable to any later editions of NLCD sedges. And print the PDF nlcd impervious surface legend must obtain and install the Acrobat® Reader available! % coverage by NLCD and EnviroAtlas data were excluded, as they are derived from and updated following the surface... A new product for NLCD 2016 is an impervious surface descriptor layer urban. Stems of trees, leaves, branches that cover the ground when viewed from.... By sedges and forbs, generally greater than 80 % of the pixel that covered...

Islamic Bank Careers, Ambala Cantt To Ludhiana Distance, Do Feral Ghouls Attack Normal Ghouls, Primark Ladies T-shirts And Tops, 171 Grand Street Croton On Hudson, Ny 10520, Methods Of Financial Statement Analysis Pdf,