BENGALURU: In view of the recent natural disasters like the landslide in Kerala, where many people are trapped under debris, ISRO chairman S Somanath on Saturday said only a certain depth of filtration is possible with space technology and could not be relied on for finding those people.
The ISRO chief was answering a question in this regard in the outreach programme organised by ISRO, #asksomanatisro on Instagram.
"There are limitations of space-based sensors to locate objects that are buried under debris, which is currently an issue. It is not possible to detect what is deep under the ground from space.
A certain depth of filtration is always possible by radar signals, but it is not possible to find, say, underground channels or petroleum deposits and deep minerals," added Somanath.