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  4. Early Estimates of Exotic Annual Grass (EAG) in the Sagebrush Biome, USA, 2024
  5. Early Estimates of Exotic Annual Grass (EAG) in the Sagebrush Biome, USA, 2024 (ver. 4.0, May 2024)

Early Estimates of Exotic Annual Grass (EAG) in the Sagebrush Biome, USA, 2024 (ver. 4.0, May 2024)

Dates

Publication Date
Start Date
2024-04
End Date
2024-06
Release Date
2024-05-10

Citation

Dahal, D., Boyte, S.P., Postma, K., Pastick, N.J., and Megard, L., 2024, Early Estimates of Exotic Annual Grass (EAG) in the Sagebrush Biome, USA, 2024 (ver. 6.0, May 2024): U.S. Geological Survey data release, https://doi.org/10.5066/P1Y5TZBM.

Summary

These datasets provide early estimates of 2024 fractional cover for exotic annual grass (EAG) species and one native perennial grass species on a weekly basis from April to late June. Typically, the EAG estimates are publicly released within 7-13 days of the latest satellite observation used for that version. Each weekly release contains five fractional cover maps along with their corresponding confidence maps for: 1) a group of 16 species of EAGs, 2) cheatgrass (Bromus tectorum); 3) Field Brome (Bromus arvensis); 4) medusahead (Taeniatherum caput-medusae); and 5) Sandberg bluegrass (Poa secunda). These datasets were generated leveraging field observations from Bureau of Land Management (BLM) Assessment, Inventory, and Monitoring (AIM) [...]

Contacts

Point of Contact :
Devendra Dahal, U.S. Geological Survey, LAND RESOURCES
Originator :
Devendra Dahal, Stephen P Boyte, Sujan (Contractor) Parajuli, Kory Postma, Neal J Pastick, Logan (Contractor) J Megard, Dinesh (Contractor) Shrestha
Metadata Contact :
Audra (Contractor) J Griebel, U.S. Geological Survey, CORE SCIENCE SYSTEMS
Publisher :
U.S. Geological Survey
SDC Data Owner :
Earth Resources Observation and Science (EROS) Center
USGS Mission Area :
Core Science Systems
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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Metadata_EAG_May3.2024_v4.0.xml
Original FGDC Metadata
View 		36.62 KB application/fgdc+xml
PercentCover_ArcGIS_ColorRamp.lyr 27 KB application/x-tika-msoffice
PercentCover_QGIS_ColorRamp.qml 2.24 KB text/plain
RevisonHistory_v4.txt 941 Bytes text/plain
EAG_PercentCover_May10_2024.png thumbnail 7.97 MB image/png
Extension: Exotic Annual Grass Confidence, May 3, 2024.zip
ExoticAnnualGrass_2024May03_Confidence.tif 405.02 MB
Extension: Cheatgrass Confidence, May 3, 2024.zip
Cheatgrass_2024May03_Confidence.tif 485.84 MB
Extension: Exotic Annual Grass Percent Cover, May 3, 2024.zip
1.11 GB
Extension: Cheatgrass Percent Cover, May 3, 2024.zip
1.02 GB
Extension: Field Brome Confidence, May 3, 2024.zip
FieldBrome_2024May03_Confidence.tif 289.12 MB
Extension: Field Brome Percent Cover, May 3, 2024.zip
FieldBrome_2024May03_PercentCover.tif 466.73 MB
Extension: Medusahead Confidence, May 3, 2024.zip
Medusahead_2024May03_Confidence.tif 261.62 MB
Extension: Medusahead Percent Cover, May 3, 2024.zip
Medusahead_2024May03_PercentCover.tif 367.79 MB
Extension: Sandberg Bluegrass Confidence, May 3, 2024.zip
SandbergBluegrass_2024May03_Confidence.tif 345.44 MB
Extension: Sandberg Bluegrass Percent Cover, May 3, 2024.zip
SandbergBluegrass_2024May03_PercentCover.tif 630.68 MB

Purpose

The purpose for these releases is to provide land managers and researchers with near real time estimates of spatially explicit exotic annual grasses percent cover in the study area. Appropriate use of the data should be defined by the user; however, this data comes with caveats. First, these estimates should be viewed as relative abundances. Second, comparing this dataset to similar datasets with different spatial resolutions or different dates can lead to substantial differences between dataset values.
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