I noticed one minor area for potential improvement: when I look at the ATL area right now, it looks like aircraft are clipping through the ground at takeoff and landing.
I'm guessing this is because you're taking the pressure altitude which is derived from aircraft transponder data, and incorrectly interpreting it as altitude above sea level, without correcting for local air pressure variations. Right now, local barometric pressure in Atlanta is about 1028 mbar, which means pressure altitude is about 450 feet lower than true MSL altitude.
(Pilots need to know their altitude relative to sea level and the ground, so they have to manually adjust their altimeters to correct for pressure variations, based on the latest local weather conditions. For ATC, it's more critical to know aircraft's altitudes relative to each other. So transponders report the pressure altitude without correction, to guarantee that inconsistent pressure corrections can't cause errors.)
No this is a known issue, there is some mitigation for it right now, but I haven’t chased down all of the edge cases.
There are some places on the map where the terrain texture isn’t great, or is below the elevation of the centered airport, and the planes will breach the mesh. There’s a setting in there where you can manually tweak the ‘ground elevation’ if it gets annoying to you.
I noticed one minor area for potential improvement: when I look at the ATL area right now, it looks like aircraft are clipping through the ground at takeoff and landing.
I'm guessing this is because you're taking the pressure altitude which is derived from aircraft transponder data, and incorrectly interpreting it as altitude above sea level, without correcting for local air pressure variations. Right now, local barometric pressure in Atlanta is about 1028 mbar, which means pressure altitude is about 450 feet lower than true MSL altitude.
(Pilots need to know their altitude relative to sea level and the ground, so they have to manually adjust their altimeters to correct for pressure variations, based on the latest local weather conditions. For ATC, it's more critical to know aircraft's altitudes relative to each other. So transponders report the pressure altitude without correction, to guarantee that inconsistent pressure corrections can't cause errors.)