OSAVI (Optimized Soil-Adjusted Vegetation Index)
OSAVI is a vegetation index derived from red and near-infrared reflectance that adds a soil-adjustment term to reduce the influence of bare-ground background, making it more reliable than raw NDVI over sparse or patchy canopy such as pipeline rights-of-way. Vegetation indices are used broadly across agriculture and land monitoring as a proxy for plant health and stress, because changes in canopy reflectance can appear before any visually obvious change - which is what makes them a subject of ongoing research interest in infrastructure and environmental monitoring.
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This is one term out of many an integrity team has to track. Sentrix turns the underlying inspection evidence into a standardised, prioritised, defensible decision - see the platform, or explore the free tools.