https://www.e-education.psu.edu/geog862/node/1721

Interesting feature from our perspective.
A multipath gps signal is bad news for a drone, and may happen over water as well I believe.
I guess filtering them out may be a function of cost.
Also guessing that it shows up on spark first as a yaw error.

Interesting info! Thanks for posting

Very good reason not to fly in cities.  Or from appartment balconies (flyaway and recovered thread).