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China literally paints their mountains green. (Source: guy who lived in china for 12 years and did a travel documentary.then was forced out by government, now
by drekipus 3y ago
China literally paints their mountains green.
(Source: guy who lived in china for 12 years and did a travel documentary.then was forced out by government, now has contacts all around China)
https://youtu.be/Cvc7VymDa4c?si=xIcqLGiIC9gNTd7Y https://youtu.be/Cvc7VymDa4c?si=xIcqLGiIC9gNTd7Y
- mardifoufs 3y agoI don't think NASA measures the leaf area by literally just looking at the color of the land it is surveying.
- patmorgan23 3y agoI mean they might literally do that with satellite imagery. How do you think they do it?
- jcbe 3y agoThey use the difference between measured red and infrared light divided by the sum of measured red and infrared light https://en.wikipedia.org/wiki/Normalized_difference_vegetation_index https://en.wikipedia.org/wiki/Normalized_difference_vegetati...
- motbus3 3y agoI've read it and it states it is not an useful metric and, please correct me if I'm wrong, does not say anything about measuring fake plants. As far as I understood, it does use the reflectance in red and infra red to detect soil, water and vegetation, but it was not designed to detect fake green plastic from plants anyway. I mean, who would think someone would use fake grass and fake plants and also use paint in mountains. It is so stupid that no one would even think in measuring it.
- relaxing 3y agoPlastic doesn't look like foliage under NIR.