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The dataset provides an estimate of 2017 herbaceous annual percent cover predicted on May 1st with an emphasis on annual grasses. The pixel values range from 0 to100 with an overall mean value of 7.1 and a standard deviation of +/-10.5. The model's test mean error rate (n = 1670), based on nine different randomizations, equals 4.9% with a standard deviation of +/- 0.15. This dataset was generated by integrating ground-truth measurements of annual herbaceous percent cover with 250-m spatial resolution eMODIS NDVI satellite derived data and geophysical variables into regression-tree software. The geographic coverage includes the Great Basin, the Snake River Plain, the state of Wyoming, and contiguous areas. We applied...
This map was last updated May 2012. This map service presents low-resolution satellite imagery for the world and high-resolution (1m or better) imagery for the United States and other areas around the world. The service includes NASA Blue Marble: Next Generation 500m resolution imagery at small scales (above 1:1,000,000), i-cubed 15m eSAT imagery at medium-to-large scales (down to 1:70,000) for the world, and US This map was last updated May 2012. This map service presents low-resolution satellite imagery for the world and high-resolution (1m or better) imagery for the United States and other areas around the world. The service includes NASA Blue Marble: Next Generation 500m resolution imagery at small scales (above...
Categories: Data;
Types: ArcGIS REST Map Service,
Map Service;
Tags: Aerial Imaging,
Imagery,
Satellite,
aerial photograph,
basemap,
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