Personally I'm not a fan of your way of doing it, it just seems like you're overthinking it, making it less straightforward. Why de-fog the geoscape when Kracken's simple green overlay does the job more intuitively whilst also looking better?
I don't agree that the green-overlay radar is so obviously superior. Not that i'm criticizing Kracken's work. I'm glad he's working on it... But as a graphic designer, it's something i can profitably contribute ideas to.
With my version, you'll eventually have a globe that's nearly all clear and crisp.
With the green version, you'll eventually have a globe that's nearly all greenish--- that's the wrong progression.
... assuming that the new radar display is going to be on all the time... which i think is worthwhile
Kracken's method is more obvious to think of, but not more obvious to use... especially when you start adding the national and IVX overlays. A green overlay will muddy the colors, and make it harder to distinguish national colors... A neutral grey will dull the colors, but it won't shift them to something else.
Every game i can think of indicates vision by dulling or darkening the area you can't see, rather than putting a color overlay on the area you can see in. And with good reason: It's the more intuitive method.