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roster's avatar

I tried accessing the dataset from umbra.space and contrary to what is in the transcript, yes there is an open data program, but I could not find any on the Giza plateau. Its possible to browse the bucket and dataset but only a few are named and other just have some sort of hash code that you cannot identify. Also in Umbras handbook on the technology at no point there is mention on subterrain data.

What Ive asked myself anyway is how the "transform light into sound" idea would work anyway given the satellite does not have a "sound sensor" for that. Apparently Umbra works in the X-Band "for high resolution surface mapping". For ground penetration you would need much lower frquencies. Also in general Doppler Shift Analysis in SAR is used for velocity mapping (e.g., moving targets) not subsurface scanning. So I would really like to see more on their methodology.

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Malcolm McIntyre's avatar

Congrats on an informative and unbiased article.

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