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1 January 2006 Evaluation of High-Resolution Satellite Imagery for Assessing Rangeland Resources in South Texas
J. H. Everitt, C. Yang, R. S. Fletcher, D. L. Drawe
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Abstract

QuickBird satellite imagery was evaluated for differentiating among rangeland cover types on the Welder Wildlife Refuge in south Texas. The satellite imagery had a spatial resolution of 2.8 m and contained 11-bit data. Four subsets of the satellite image were extracted and used as study sites. Field spectral measurements made among the dominant vegetation types showed significant differences in visible and near-infrared reflectance. Unsupervised classification techniques were used to classify false color composite (green, red, and near-infrared bands) images of each study site. Accuracy assessments performed on the classification maps of the 4 sites had overall accuracies ranging from 79% to 89%. These results indicate that QuickBird imagery can be a useful tool for identifying rangeland cover types at a regional level.

J. H. Everitt, C. Yang, R. S. Fletcher, and D. L. Drawe "Evaluation of High-Resolution Satellite Imagery for Assessing Rangeland Resources in South Texas," Rangeland Ecology and Management 59(1), 30-37, (1 January 2006). https://doi.org/10.2111/04-093.1
Published: 1 January 2006
JOURNAL ARTICLE
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KEYWORDS
accuracy assessment
image analysis
light reflectance
QuickBird satellite imagery
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