Ground Truth (geospatial term)

Ground truth in geospatial contexts refers to the accurate, on-the-ground information collected directly from physical locations to verify or improve remote sensing data, like satellite images. It involves verifying map data, land features, or other geographic information through field observations or measurements. This process ensures the accuracy and reliability of spatial data used in mapping, land management, or environmental monitoring. Essentially, ground truthing confirms that the digital or satellite data correctly represents real-world conditions, serving as a crucial reference point for calibrating and validating geospatial analyses.