How does the ionosphere affect GPS?
A) GPS satellites orbit the Earth in the ionosphere.
B) GPS ground stations lose contact with geosynchronous satellites orbiting near the poles.
C) GPS signals much pass through the ionosphere, whose gases weaken the signal.
D) Positively charged ions in the ionosphere speed up the GPS signal, causing signal error.

Question

Quizplus · Accepted Answer

GPS signals travel through the ionosphere on their way from the satellite to the receiver on the ground. However, the ionosphere contains charged gases that can interfere with the GPS signal and cause errors. This impact is known as ionospheric delay, where the ionosphere can slow down the GPS signal, reducing its accuracy.

How Does the Ionosphere Affect GPS