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Old 06-11-2019, 10:01 AM
gnoitall is offline
Join Date: Jul 2009
Posts: 5,968
Originally Posted by friedo View Post
Unless it's a severe malfunction ( ), a GPS issue would not be an atmospheric condition, surely. And I don't think UPS flies any CRJ's.

On second thought, maybe there's some solar flares or something causing ionization that is interfering with GPS. That would be an atmospheric issue.
Yes. The ionosphere is part of the atmosphere, and ionospheric scintillation affects GPS accuracy.

Originally Posted by NOAA Space Weather Prediction Center
Ionospheric scintillation is the rapid modification of radio waves caused by small scale structures in the ionosphere. Severe scintillation conditions can prevent a GPS receiver from locking on to the signal and can make it impossible to calculate a position. Less severe scintillation conditions can reduce the accuracy and the confidence of positioning results.