Radar satellite image surface deformation monitoring has the following advantages

Jul 14, 2023

All-weather: Radar satellites can obtain images under any weather conditions, free from the interference of clouds, rain and snow and other weather factors, and can achieve all-weather deformation monitoring.

High resolution: Radar satellite images are usually of high resolution and can provide detailed information about surface deformation. High-resolution images can capture the small scale surface changes, which is of great significance for the study of crustal movement and seismic activity.

Wide coverage: Radar satellite images can cover a large area of the surface, so as to realize the deformation monitoring of a wide area. This is of great significance for monitoring geological hazards and ground subsidence caused by groundwater exploitation.

High precision: Through the comparison and analysis of multi-phase radar satellite images, high precision deformation measurement can be achieved. Differential interferometric synthetic aperture radar (D-InSAR) technology can be used to detect millimeter-scale surface deformation.

Applications of radar satellite imagery for surface deformation monitoring include but are not limited to the following areas:

Earthquake monitoring: The monitoring of the surface deformation before and after the earthquake can provide important information such as the active area, scale and development trend of the earthquake, which is of great significance for earthquake early warning and earthquake disaster assessment.

Geological disaster monitoring: Radar satellite images can monitor the deformation of geological disasters such as landslide and rock slip in real time, and provide the basis for early warning and disaster prevention measures.

Groundwater resource management: Ground subsidence caused by groundwater exploitation is an important environmental problem. The use of radar satellite image to monitor ground subsidence can provide data support for the reasonable development and management of groundwater resources.

Building deformation monitoring: By monitoring the deformation of urban buildings, the deformation of buildings can be found and assessed in time, and provide the basis for urban planning and structural safety assessment.