- Subheading: SAR
The main source of information for deriving ground motion data are Synthetic Aperture Radar (SAR) data from the ESA Copernicus Sentinel-1 mission.
This mission provides full coverage of USA from at least one (many areas from two different) observation geometries (ascending or descending) every 12 days.
From these data, ground motion can be derived using InSAR time series analyses. There are many different InSAR processing concepts, and common to all is an end product consisting of a set of ground motion time series valid for specific points or pixels, with a corresponding quality measure. SILLE uses cutting edge technology and scientific findings integrated to the system.
Among our partners are the key scientists in the world of Interferometric Synthetic Aperture Radar Persistent Scatterer InSAR science.
InSAR is a technique that determines the component of movement along a vector parallel to the satellite-to-ground line of sight (LOS) vector, relative to a chosen reference point.
Each point on Europe’s surface is imaged regularly from both ascending (north going) and descending (south going) orbits. Since the Sentinel-1 satellites are side looking, the result is that the velocity of each point can be measured along two different lines of sight, one looking east and one looking west.
Differences between LiDAR and SAR
LiDAR SAR Weather dependent (blocked by cloud coverage) Continuous coverage (see through clouds) Extremely high-resolution data al...Read more
Output of the application
Basic displacement information provided by the service is the satellite line-of-sight (LOS), with projected to ground geometry and quality measures pe...Read more
The main source of information for deriving ground motion data are Synthetic Aperture Radar (SAR) data from the ESA Copernicus Sentinel-1 mission. Th...Read more
Sentinel-1 routinely collects data in three modes: Interferometric Wide Swath (IW), Extra Wide Swath (EW) and Wave (WV). The latter two are used for m...Read more
Synthetic Aperture Radar Interferometry (InSAR) is the main technology for space based ground motion measurement. It has been in use for more than 25 ...Read more
This service offers analyzed data in powerful yet simple to operate visual mapping application. SILLE enables data analytics, comparison, reporting an...Read more
Sille uses InSAR satellites
Sille uses European Space Agency Interferometric synthetic aperture radar (InSAR) satelite Sentinel-1 to gather information. What is InSAR? InSar is...Read more