Question
Geomatics Engineering Question on Geographic Information System - GIS
Which of the following factors is/are responsible for ionospheric delay in GNSS observations?
A
Total electron count in the ionosphere
B
Carrier signal frequency
C
Size of GPS reciever
D
Size and accuracy of atomic clocks
Answer
Total electron count in the ionosphere
Explanation
Solution
The correct answer is (A and B) : Total electron count in the ionosphere AND Carrier signal frequency