differential leveling

Differential leveling is a surveying technique used to measure the relative heights or elevations of different points on the Earth's surface. It involves using a leveling instrument, like a leveling scope, to sight between sets of specific points called benchmarks. By recording height differences between points, surveyors can determine the elevation of one location relative to another. This method is essential for construction, mapping, and land assessment, ensuring accurate elevation data for planning and development. It provides precise, reliable measurements of changes in terrain, aiding in the understanding of natural and man-made features.