[etrautmann]

With a highly detailed map, it becomes a statistical fitting problem, to locate yourself based on an estimate of position history using intertidal measurements and your time history of gravitational measurements, starting from an initial position estimate. I would imagine this could be quite accurate.

[quickthrower2]

Dead reckoning with gravitational adjustments?

[tehlike]

Pretty much a slam application.

[etrautmann]

exactly - presumably a subset of the full SLAM challenge if a detailed map already exists and you're just localizing within it

[etrautmann]

Oops fat fingers - s/intertidal/inertial

[unhammer]

what a strangely fitting typo though :-)