ilmakuvausLiDAR

IlmakuvausLiDAR, which translates to Aerial LiDAR, is a remote sensing technique that uses light detection and ranging (LiDAR) technology mounted on aircraft or drones to survey terrain and generate precise 3D information. Unlike traditional aerial photography, LiDAR actively emits laser pulses towards the ground and measures the time it takes for these pulses to return after reflecting off surfaces. This allows for the creation of highly accurate digital elevation models (DEMs) and digital surface models (DSMs).

The primary advantage of ilmakuvausLiDAR is its ability to penetrate vegetation. The laser pulses can pass through tree canopies, reaching the ground beneath. This capability is crucial for mapping the bare earth terrain in forested areas, which is difficult to achieve with optical imagery. The data collected can be used for a wide range of applications. In forestry, it aids in estimating tree height, biomass, and forest health. For urban planning and infrastructure development, it supports the creation of detailed city models, flood risk assessment, and network planning.

Geologists and geographers utilize ilmakuvausLiDAR for mapping geological formations, identifying landslide hazards, and monitoring coastal erosion. Environmental scientists employ it for habitat mapping and understanding landscape changes. The high spatial resolution and accuracy of LiDAR data enable detailed analysis and informed decision-making across various scientific and professional fields. The integration of GPS and inertial measurement units (IMUs) with the LiDAR sensor ensures precise georeferencing of the collected data.