Exotic Annual Grass (EAG) Fractional Cover (MRLC)
type: Dataset
comment: This dataset metadata was generated with the use of AI and reviewed by an expert. If you see any mistakes please file an issue on GitHub at https://github.com/earthcube/communityCollections/issues.
description: The Exotic Annual Grass (EAG) dataset provides frequent (weekly, during the core growing season) early estimates of fractional cover for multiple exotic annual grass targets and one native perennial grass species in arid and semi-arid rangelands of the western United States. Each release includes fractional cover maps and corresponding confidence maps for multiple species/groups (including cheatgrass and other Bromus species) generated using field observations, HLS NDVI, environmental drivers, and machine learning methods.
creator: U.S. Geological Survey (USGS) / MRLC Consortium
publisher: Multi-Resolution Land Characteristics (MRLC) Consortium
keywords: Exotic Annual Grass
keywords: EAG
keywords: cheatgrass
keywords: invasive species
keywords: fractional cover
keywords: rangelands
keywords: remote sensing
keywords: machine learning
variable measured: EAG fractional cover (multiple species group)
  type: PropertyValue
  temporal coverage: 2016-01-01/2025-12-31
  spatial coverage: Western United States (arid and semi-arid rangelands)
    type: Place
    geo: GeoShape
      box: -130,30 -95,50
  temporal resolution: not detected
  spatial resolution: QuantitativeValue
    value: 30
    unit text: m
variable measured: Cheatgrass (Bromus tectorum) fractional cover
  type: PropertyValue
  temporal coverage: 2016-01-01/2025-12-31
  spatial coverage: Western United States (arid and semi-arid rangelands)
    type: Place
    geo: GeoShape
      box: -130,30 -95,50
  temporal resolution: not detected
  spatial resolution: QuantitativeValue
    value: 30
    unit text: m
variable measured: Other Bromus spp. fractional cover (Field brome + Japanese brome)
  type: PropertyValue
  temporal coverage: 2016-01-01/2025-12-31
  spatial coverage: Western United States (arid and semi-arid rangelands)
    type: Place
    geo: GeoShape
      box: -130,30 -95,50
  temporal resolution: not detected
  spatial resolution: QuantitativeValue
    value: 30
    unit text: m
variable measured: Medusahead (Taeniatherum caput-medusae) fractional cover
  type: PropertyValue
  temporal coverage: 2016-01-01/2025-12-31
  spatial coverage: Western United States (arid and semi-arid rangelands)
    type: Place
    geo: GeoShape
      box: -130,30 -95,50
  temporal resolution: not detected
  spatial resolution: QuantitativeValue
    value: 30
    unit text: m
variable measured: Sandberg bluegrass (Poa secunda) fractional cover
  type: PropertyValue
  temporal coverage: 2016-01-01/2025-12-31
  spatial coverage: Western United States (arid and semi-arid rangelands)
    type: Place
    geo: GeoShape
      box: -130,30 -95,50
  temporal resolution: not detected
  spatial resolution: QuantitativeValue
    value: 30
    unit text: m
variable measured: Confidence maps (per target)
  type: PropertyValue
  temporal coverage: 2016-01-01/2025-12-31
  spatial coverage: Western United States (arid and semi-arid rangelands)
    type: Place
    geo: GeoShape
      box: -130,30 -95,50
  temporal resolution: not detected
  spatial resolution: QuantitativeValue
    value: 30
    unit text: m
measurement technique: Remote sensing (HLS NDVI and related drivers)
measurement technique: Field observations (BLM AIM plots) and machine learning regression modeling
license: https://creativecommons.org/publicdomain/zero/1.0/
citation: CreativeWork
  name: Dahal, D., Boyte, S., Megard, L., Postma, K., and Pastick, N., 2025, Early Estimates of Exotic Annual Grass (EAG) in the Sagebrush Biome, USA, 2025: U.S. Geological Survey data release, https://doi.org/10.5066/P14VQEGO
distribution: MRLC Exotic Annual Grass data landing page
  type: DataDownload
  description: MRLC landing page describing the EAG products and linking to individual releases.
distribution: USGS data release (DOI: 10.5066/P14VQEGO)
  type: DataDownload
  description: USGS authoritative data release record for EAG estimates (includes DOI and rights statement).
encoding format: image/tiff
encoding format: application=geotiff
encoding format: application/zip
is part of: catalog
about: Invasive species monitoring
about: Rangeland ecology
about: Remote sensing

PropertyValue
property ID: doi
value: 10.5066/P14VQEGO