Making a comprehensive global map of changes in soil level; it can help scientists detect ground movements before, during and after earthquakes and volcanic eruptions, and to detect effects from flood or groundwater. With the new technology called CubeSat Imaging Radar (CIRES) for Earth Sciences, administrators and emergency administrators will be given the opportunity to better prepare for disasters.
Although the explosion of K─źlauea affects an area of ÔÇőÔÇő125 square kilometers, the change in soil level is not always noticeable to the human eye. The S-band Interferometric Synthetic Aperture Radar (InSAR) in CIRES can reach the ground from the top of the vegetation. CIRES detects differences between the two images by processing two images of a specified region taken from space at different times.
It is thought that a team of small InSAR satellites can work in harmony with NASA’s first InSAR satellite NASA-ISRO SAR Mission (NISAR) being developed. It is thought that many small satellites can collect data such as earthquakes, volcanic eruptions and landslides by adding data frequently together with the rapidly developing processes, to NISAR’s system.
Normally, researchers use ground sensors and GPS to detect distortions on the ground. InSAR is said to be complementary to ground measurements and will often guide ground radar placement. Orbital InSAR satellites can observe ground deformation because these areas swell with magma before volcanic eruption occurs. Scientists can predict that a volcanic eruption will occur even though they cannot determine how big the eruption will be.
It is emphasized that CIRES type satellites will be ‘dreamlike‘ in terms of rapid disaster response. Although it is not possible to process the information provided by small satellites of CIRES type similar to larger satellites, it is possible to obtain data more quickly when a disaster occurs.
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