Surveying Glossary — Letter U

A surveying method using unmanned aerial vehicles equipped with cameras, LiDAR, or other sensors to capture geospatial data and create accurate maps of land, structures, and terrain.

UAV LiDAR is a remote sensing technology that combines unmanned aerial vehicles with light detection and ranging sensors to capture high-resolution three-dimensional topographic data for surveying and mapping applications.

Underground survey is the process of mapping, measuring, and documenting subsurface features, utilities, and geological structures beneath the earth's surface using specialized surveying techniques and equipment.

A specialized surveying method that locates and maps underground and above-ground utilities including pipes, cables, and conduits to prevent damage during construction or excavation.

UTM is a global map projection system that divides Earth into 60 zones, each 6 degrees wide in longitude, using transverse Mercator projection to minimize distortion for accurate surveying and mapping.

UTM (Universal Transverse Mercator) Projection is a coordinate system that divides the Earth into 60 zones, each 6 degrees wide in longitude, using a transverse Mercator map projection to provide accurate planar coordinates for surveying and mapping applications.