What does LiDAR primarily measure?

LiDAR, which stands for Light Detection and Ranging, primarily measures distances between the sensor and reference objects using laser light. This technology works by emitting laser pulses toward a target and calculating the time it takes for each pulse to return after hitting the object. By knowing the speed of light, the system can determine the distance to the object with high precision.

This capability allows LiDAR to create detailed three-dimensional representations of the surveyed area. It is widely used in applications such as topographic mapping, forestry management, and urban planning, where understanding precise distances is crucial for analysis and modeling. The focus on measuring distances is what distinguishes LiDAR from other types of sensors, making it a valuable tool in various fields that require accurate spatial information.

The other options pertain to different types of measurements that are not the primary function of LiDAR technology. For example, air pressure variations, wind speed assessments, and temperature fluctuations are not measured by LiDAR but are typically assessed by meteorological instruments designed for those specific purposes.