Source: That Sinking Feeling - NASA Jet Propulsion Laboratory This could be very useful when trying to understand sea level in areas where the land is descending . . . and perhaps areas being fracked. Bob Wilson
Much of the oceans' floors are being re-mapped continuously every year. I have worked with sailors who were involved with mapping gravity deflections in the 60s and continuously on through the 90s. I have been crewmember on various subs that rely on that data for navigation. In turn 'we' [sub crews] do their own re-mapping looking for changes.
One of the couples we go out to dinner with ... the husband is continuously sending me stuff about the yellowstone caldera - knowing we're up in N/West Montana every year. Hopefully this tech can be used for big volcanoes too ... really REALLY big ones. .
The Yellowstone caldera (YC) is an area of interest and has a lot of ground-based hi-res GPS stations and other geology magical ways of 'looking down'. Now things are rather calm there, but if they change, it will be news. I am not sure that SAR from orbit could improve our understanding of the YC, nor even if there are SAR birds flying now. Anyway, YC is a big gun should it decide to discharge, and has the potential to render many of our daily concerns moot. Trust me, you want that baby to continue sleeping as it has for 640,000 years or so. Globally, the other big guns are not as well instrumented and might be better SAR targets. Volcanoes from below, asteroids from above, and climate-changers in the middle. Dang, we just can't catch a break
"Mother Nature's Revenge" = Asteroids (above) , climatoid-changes (middle), hemorrhoids (below)...(wink,wink)!
Well I'm impressed: source: Sentinel-1 overview / Copernicus / Observing the Earth / Our Activities / ESA It is a huge, 2,300 kg, satellite. Not the largest but that is a big one. Bob Wilson
