InSARkartoitukseen

InSARkartoitukseen is a Finnish term that translates to "InSAR mapping" or "InSAR survey" in English. It refers to the application of Interferometric Synthetic Aperture Radar (InSAR) techniques for mapping and monitoring the Earth's surface. InSAR is a remote sensing method that uses radar data collected by satellites or aircraft to measure changes in the Earth's surface with very high precision, often on the order of millimeters.

The process involves acquiring at least two radar images of the same area at different times. By comparing the phase difference between the two radar signals, it's possible to detect subtle deformations of the ground. These deformations can be caused by various phenomena, including tectonic activity like earthquakes and volcanic eruptions, subsidence due to groundwater extraction or mining, the movement of glaciers, and the displacement of landslides.

InSARkartoitukseen is utilized in several fields. Geologists and geophysicists use it to study active fault lines, monitor volcanic unrest, and understand crustal movements. Engineers and urban planners employ it to detect and monitor land subsidence in urban areas, which can impact infrastructure. Environmental scientists use InSAR to track changes in ice sheets and glaciers, contributing to climate change research. The ability of InSAR to cover large areas repeatedly and without ground access makes it a powerful tool for large-scale, long-term monitoring and mapping of surface changes.