Urban Imperviousness
NLCD imperviousness products represent urban impervious surfaces as a percentage of developed surface over every 30-meter pixel in the United States. The NLCD 2021 release is update based, so the Impervious Surface products released in 2019 are unchanged and can be used directly with NLCD 2021.This update provides integrated analysis throughout all dates and includes a matching impervious surface descriptor layer. This descriptor layer identifies types of roads, wind tower sites, building locations, and energy production sites to allow a deeper analysis of developed features. No new imperviousness products for Alaska, Hawaii and Puerto Rico are available for NLCD 2021. (Read More)
NLCD Imperviousness (CONUS) All Years
CONUS
| 2021, 2019, 2016, 2013, 2011, 2008, 2006, 2004, 2001
NLCD 2019 Percent Developed Imperviousness (CONUS)
CONUS
| 2019
NLCD 2019 Developed Imperviousness Descriptor (CONUS)
CONUS
| 2019
NLCD 2016 Percent Developed Imperviousness (CONUS)
CONUS
| 2016
NLCD 2016 Developed Imperviousness Descriptor (CONUS)
CONUS
| 2016
NLCD 2011 Percent Developed Imperviousness (CONUS)
CONUS
| 2011
NLCD 2011 Percent Developed Imperviousness Zone 8 (ALASKA)
Alaska
| 2011
NLCD 2011 Developed Imperviousness Descriptor (CONUS)
CONUS
| 2011
NLCD 2006 Percent Developed Imperviousness (CONUS)
CONUS
| 2006
NLCD 2006 Developed Imperviousness Descriptor (CONUS)
CONUS
| 2006
NLCD 2001 Percent Developed Imperviousness (CONUS)
CONUS
| 2001
NLCD 2001 Developed Imperviousness Descriptor (CONUS)
CONUS
| 2001
NLCD 2001 to 2011 Developed Imperviousness Zone 8 Change (ALASKA)
Alaska
| 2001, 2011
NLCD 2001 Percent Developed Imperviousness Zone 8 (ALASKA)
Alaska
| 2001
NLCD 2021 Developed Imperviousness Descriptor (CONUS)
CONUS
| 2021
NLCD 2021 Percent Developed Imperviousness (CONUS)
CONUS
| 2021
NLCD 2016 Percent Developed Imperviousness Zone 8 (ALASKA)
Alaska
| 2016
NLCD 2016 Developed Impervious Descriptor Zone 8 (ALASKA)
Alaska
| 2016
NLCD 2016 Developed Urban Descriptor (ALASKA)
Alaska
| 2016
NLCD 2013 Developed Imperviousness (CONUS)
CONUS
| 2013
NLCD 2013 Developed Imperviousness Descriptor (CONUS)
CONUS
| 2013
NLCD 2011 to 2016 Developed Imperviousness Zone 8 Change (ALASKA)
Alaska
| 2011, 2016
NLCD 2011 Developed Impervious Descriptor Zone 8 (ALASKA)
Alaska
| 2011
NLCD 2011 Developed Urban Descriptor (ALASKA)
Alaska
| 2011
NLCD 2008 Percent Developed Imperviousness (CONUS)
CONUS
| 2008
NLCD 2008 Developed Imperviousness Descriptor (CONUS)
CONUS
| 2008
NLCD 2004 Percent Developed Imperviousness (CONUS)
CONUS
| 2004
NLCD 2004 Developed Imperviousness Descriptor (CONUS)
CONUS
| 2004
NLCD 2001 to 2016 Developed Imperviousness Zone 8 Change (ALASKA)
Alaska
| 2001, 2016
NLCD 2001 Developed Impervious Descriptor Zone 8 (ALASKA)
Alaska
| 2001
NLCD 2001 Developed Urban Descriptor (ALASKA)
Alaska
| 2001
Exotic Annual Grass
The Exotic Annual Grass (EAG) abundance dataset provides early season percent cover estimate of the exotic grass species in 30m spatial resolution for a mapped year in rangeland ecosystems of western United States. We plan to release these EAG estimates multiple times each year in early growing season. EAG is a continuous field consisting of abundance of non-native grass species whose life history is complete in one growing season. Cheatgrass (Bromus tectorum) is a dominant species, but this dataset also includes Bromus arvensis L., Bromus briziformis Fisch. & C.A. Mey. Bromus catharticus Vahl, Bromus commutatus Schrad, Bromus diandrus Roth, Bromus hordeaceus L., Bromus hordeaceus spp. Hordeaceus, Bromus japonicus Thunb, Bromus madritensis L., Bromus madritensis L. ssp. rubens (L.) Duvin, Bromus racemosus L., Bromus rubens L., Bromus secalinus L., Bromus texensis (Shear) Hitchc, and medusahead (Taeniatherum caput-medusae (L.) Nevski). A main objective of releasing these maps is to provide a tool for better monitoring EAG dynamics and informing conservation and management efforts at local to regional scales. (Read More)
Exotic Annual Grass Confidence Level June 19th, 2023
Western U.S.
| 2023
Exotic Annual Grass Percent Cover June 19th, 2023
Western U.S.
| 2023
Exotic Annual Grass Confidence Level June 12th, 2023
Western U.S.
| 2023
Exotic Annual Grass Percent Cover June 12th, 2023
Western U.S.
| 2023
Exotic Annual Grass Confidence Level June 5th, 2023
Western U.S.
| 2023
Exotic Annual Grass Percent Cover June 5th, 2023
Western U.S.
| 2023
Exotic Annual Grass Confidence Level May 29th, 2023
Western U.S.
| 2023
Exotic Annual Grass Percent Cover May 29th, 2023
Western U.S.
| 2023
Exotic Annual Grass Confidence Level May 22nd, 2023
Western U.S.
| 2023
Exotic Annual Grass Percent Cover May 22nd, 2023
Western U.S.
| 2023
Exotic Annual Grass Confidence Level May 15th, 2023
Western U.S.
| 2023
Exotic Annual Grass Percent Cover May 15th, 2023
Western U.S.
| 2023
Exotic Annual Grass Confidence Level May 8th, 2023
Western U.S.
| 2023
Exotic Annual Grass Percent Cover May 8th, 2023
Western U.S.
| 2023
Exotic Annual Grass Confidence Level May 1st, 2023
Western U.S.
| 2023
Exotic Annual Grass Percent Cover May 1st, 2023
Western U.S.
| 2023
Exotic Annual Grass Percent Cover - July 01, 2022
Western U.S.
| 2022
Exotic Annual Grass Confidence Level - July 01, 2022
Western U.S.
| 2022
Exotic Annual Grass Percent Cover - June 15, 2022
Western U.S.
| 2022
Exotic Annual Grass Confidence Level - June 15, 2022
Western U.S.
| 2022
Exotic Annual Grass Percent Cover - June 03, 2022
Western U.S.
| 2022
Exotic Annual Grass Confidence Level - June 03, 2022
Western U.S.
| 2022
Exotic Annual Grass Percent Cover - May 18, 2022
Western U.S.
| 2022
Exotic Annual Grass Confidence Level - May 18, 2022
Western U.S.
| 2022
Exotic Annual Grass Percent Cover - May 06, 2022
Western U.S.
| 2022
Exotic Annual Grass Confidence Level - May 06, 2022
Western U.S.
| 2022
Exotic Annual Grass Percent Cover - July 2021
Western U.S.
| 2021
Exotic Annual Grass Confidence Level - July 2021
Western U.S.
| 2021
Exotic Annual Grass Percent Cover - May 2021
Western U.S.
| 2021
Exotic Annual Grass Confidence Level - May 2021
Western U.S.
| 2021
RCMAP - Future Projections - 2020s, 2050s, and 2080s
RCMAP projected cover products characterize the fractional (i.e., percentage) cover of shrub, herbaceous, bare ground, litter, sagebrush, tree, and annual herbaceous in each 30-meter pixel in the Western United States. Projected data include three time periods (2020s, 2050s, and 2080s) and two climate scenarios (Representative Concentration Pathways [RCP] 4.5 and 8.5). Component cover were harmonized so that the sum of bare ground, shrub, herbaceous, tree, and litter cover adds to ~100% and secondary components sagebrush and annual herbaceous cover were harmonized to their respective primary components of shrub and herbaceous cover, (so their cover could not be greater than their primary component). These products have been produced by USGS in collaboration with the Bureau of Land Management. Component products are designed to be used individually or combined to support a broad variety of applications. Data are packaged by time-period and climate scenarios (six). Additionally, for comparison to reference conditions, a scenario based on 1991-2020 climate normal is available. (Read More)
Rangeland – Future Projections 2080s – rcp 4.5
Western U.S.
| 2080s
Rangeland – Future Projections 2080s – rcp 8.5
Western U.S.
| 2080s
Rangeland – Future Projections 2050s – rcp 4.5
Western U.S.
| 2050s
Rangeland – Future Projections 2050s – rcp 8.5
Western U.S.
| 2050s
Rangeland – Future Projections 2020s – rcp 4.5
Western U.S.
| 2020s
Rangeland – Future Projections 2020s – rcp 8.5
Western U.S.
| 2020s
Rangeland - Backcast 1991-2020
Western U.S.
| 1991-2020
Ecological Potential
Rangeland Ecological Potential - Component Cover, Cover Departure, and Vegetation States.
Ecological Potential rangeland fractional cover data products represent the potential cover given the most productive, least disturbed, portion of the 1985-2020 Landsat archive. Models used to predict Ecological Potential cover were trained on ecologically intact sites where annual herbaceous cover is low, no known disturbance or land treatment has occurred over the study period, and bare ground cover is relatively lower than expectations (Read More)
Ecological Potential Bare Ground Cover
Western U.S.
Ecological Potential Sagebrush Cover
Western U.S.
Ecological Potential Perennial Herbaceous Cover
Western U.S.
Ecological Potential Litter Cover
Western U.S.
Ecological Potential Shrub Cover
Western U.S.
Percent Error for Ecological Potential Bare Ground
Western U.S.
Percent Error for Ecological Potential Sagebrush
Western U.S.
Percent Error for Ecological Potential Perennial Herbaceous
Western U.S.
Percent Error for Ecological Potential Litter
Western U.S.
Percent Error for Ecological Potential Shrub
Western U.S.
Departure of Bare Ground Cover
Western U.S.
Departure of Sagebrush Cover
Western U.S.
Departure of Perennial Herbaceous Cover
Western U.S.
Departure of Litter Cover
Western U.S.
Departure of Shrub Cover
Western U.S.
Ecological Potential Vegetation State
Western U.S.
2018 Vegetation State
Western U.S.