When all four neural network prediction images agreed with a change of 50% or more from the 2011 NLCD map, the average of those four images replaced that pixel from the 2011 imperviousness map. Percentage IC has been a database element of NLCD since 2001. NLCD 2016 updates all previously released versions of impervious products for CONUS (NLCD 2001, NLCD 2006, NLCD 2011) along with a new date of impervious surface for 2016. Zone 5 (covering parts of California and Nevada) of the contiguous U.S. percent developed imperviousness dataset from NLCD 2006, released 2/16/2011. Click to view full size image. (1) U.S. Geological Survey developed an impervious surface estimate (NLCD Percent Developed Imperviousness) raster dataset based on the NLCD land cover data from year 2011. The data in NLCD 2011 are completely integrated with NLCD 2001 (2011 Edition, amended 2014) and NLCD 2006 (2011 Edition, amended 2014). NLCD imperviousness products represent urban impervious surfaces as a percentage of developed surface over every 30-meter pixel in the United States. For NLCD 2011, there are 5 primary data products: 1) NLCD 2011 Land Cover; 2) NLCD 2006/2011 Land Cover Change Pixels labeled with the 2011 land cover class; 3) NLCD 2011 Percent Developed Imperviousness; 4) NLCD 2006/2011 Percent Developed Imperviousness Change Pixels; and 5) NLCD 2011 Tree Canopy Cover provided by an MRLC partner - the U.S.D.A. Similarly, Anna’s Hummingbird (Calypte anna) and Black-chinned Hummingbird Questions about the NLCD 2001 Percent Developed Imperviousness 2011 Edition can be directed to the NLCD 2001 land cover mapping team at the National Center, EROS, Sioux Falls, SD (605) 594-6151 or mrlc@usgs.gov. NLCD 2016 offers 7 integrated epochs of land cover for years 2001, 2003, 2006, 2008, 2011, 2013, and 2016. Hummingbirds are one avian group that has shown positive responses to urbanization. Forest Service Remote Sensing … (2001 NLCD) Reference site selection Screened > 2400 candidate reference sites Objectives: ... 2011 es. The full dataset is divided into 25 zones, which can all be found in the NLCD 2006 gallery. NLCD 2006 Percent Developed Imperviousness. The NLCD 2011 final seamless products include: 1) NLCD 2011 Land Cover; 2) NLCD 2011 Percent Developed Imperviousness; 3) NLCD 2006/2011 Change Pixels labeled with the 2011 land cover class; 4) NLCD 2006/2011 Percent Developed Imperviousness Change and 5) NLCD 2011 Tree Canopy Cover. NLCD 2016 updates all previously released versions of impervious products for CONUS (NLCD 2001, NLCD 2006, NLCD 2011) along with a new date of impervious surface for 2016. Legend. For NLCD 2011, there are 5 primary data products: 1) NLCD 2011 Land Cover; 2) NLCD 2006/2011 Land Cover Change Pixels labeled with the 2011 land cover class; 3) NLCD 2011 Percent Developed Imperviousness; 4) NLCD 2006/2011 Percent Developed Imperviousness Change Pixels; and 5) NLCD 2011 Tree Canopy Cover provided by an MRLC partner - the U.S.D.A. NLCD imperviousness products represent urban impervious surfaces as a percentage of developed surface over every 30-meter pixel in the United States. NLCD is generated in cooperation with the Multi-Resolution Land Characteristics Consortium a partnership of Federal agencies working together to produce current, nationally consistent, land cover products for all 50 states and Puerto Rico.NLCD is used for thousands of applications that require information on landcover location or where it is changing. NLCD 2011 is the most up-to-date iteration of the National Land Cover Database, the definitive Landsat-based, 30-meter resolution land cover database for the Nation. The NLCD 2006 Percent Developed Imperviousness (2011 Edition)and the NLCD 2011 Percent Developed Imperviousness were compared in a model to provide the user community with a layer that depicts imperviousness change between 2006 and 2011. Legend. CSCI is responsive to stress 45 . Percent Developed Imperviousness. Forest Service Remote … NLCD 2011 Percent Developed Imperviousness. Imperviousness threshold values used to derive the NLCD developed classes are: (1) developed open space (imperviousness < 20%), (2) low-intensity developed (imperviousness from 20 - 49%), (3) medium intensity developed (imperviousness from 50 -79%), and (4) … Description. NLCD imperviousness products represent urban impervious surfaces as a percentage of developed surface over every 30-meter pixel in the United States. Impervious surfaces are materials that do not allow the penetration of water, such as buildings, roads, and parking lots. Click to view full size image. ... transitions out of “developed ... Chini LP, Frolking S, et al. Click to view full size image. These issues were evaluated and corrected, necessitating a reissue of NLCD 2001 data products (NLCD 2001 Version 2.0) as part of the NLCD 2006 release. (2011) Harmonization of land-use s cenarios for the period . 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. 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). NLCD 2016 updates all previously released versions of impervious products for CONUS (NLCD 2001, NLCD 2006, NLCD 2011) along with a new date of impervious surface for 2016. Generation of NLCD 2006 data products helped to identify some update issues in the NLCD 2001 land cover and percent developed imperviousness data products. A subspecies of Allen’s Hummingbird (Selasphorus sasin sedentarius) expanded its population in urban Southern California (Clark 2017). This EnviroAtlas national map estimates the percentage of land within each 12-digit hydrologic unit (HUC) that is classified as impervious by the 2011 National Land Cover Dataset (NLCD) Percent Developed Impervious Surface Layer.

(dataset) Multi-Resolution Land Characteristics Consortium (MRLC). The NLCD 2006 Percent Developed Imperviousness (2011 Edition)and the NLCD 2011 Percent Developed Imperviousness were compared in a model to provide the user community with a layer that depicts imperviousness change between 2006 and 2011. To examine results in a hydrologic application, the BELLR estimated BIAs were tested using two different types of hydrologic models to compare BELLR results with results using the National Land Cover Database (NLCD) 2011 Percent Developed Imperviousness data. This update represents a seamless assembly of updated NLCD 2001 Percent Developed Imperviousness for all 66 MRLC mapping zones. Data downloads. 2011). Data downloads. NLCD 2001 Percent Developed Imperviousness. NLCD provides %IC for each 30 m-x-30 m pixel in 1% increments from 0% to 100% for NLCD 2001 (Homer et al., 2007), NLCD 2006 (Fry et al., 2011), NLCD 2011 (Homer et al., 2015), and change across the three eras (Xian et al., 2011). The data in NLCD 2011 are completely integrated with NLCD 2001 (2011 Edition, amended 2014) and NLCD 2006 (2011 Edition, amended 2014). Compared to the ground truth, the method used showed significant promise, with an R2 of 0.73 and RMSE of 0.123. Percent Impervious Area. NLCD 2006 classes and percent of study region area. Description. The NLCD 2006 Percent Developed Imperviousness (2011 Edition) and the NLCD 2011 Percent Developed Imperviousness were compared in a model to provide the user community with a layer that depicts imperviousness change between 2006 and 2011. Dataset ) Multi-Resolution land Characteristics Consortium ( MRLC ) covering parts of California and Nevada ) of the U.S.. 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