GNSS signal distortions to ionospheric delay maps

GNSS Signal Distortions to Ionospheric Delay Maps

This tool explains how ionospheric conditions distort GNSS signals and provides key ionospheric delay parameters relevant for signal correction and mapping.

Distortion Type	Effect on GNSS Signal	Typical Delay Range (ns)	Map Parameter
Group Delay	Signal propagation slowed, causing timing errors	1 - 100	Total Electron Content (TEC)
Phase Advance	Phase shift causing carrier phase measurement errors	-5 to -100	Ionospheric Pierce Point (IPP)
Scintillation	Rapid fluctuations in amplitude and phase causing signal fading	Variable	S4 Index
Faraday Rotation	Rotation of signal polarization affecting dual-frequency measurements	Dependent on geomagnetic field	Rotation Angle Map

Generate Ionospheric Delay Map

Enter Total Electron Content (TEC) in TEC Units (1 TECU = 10¹⁶ electrons/m²):

Enter TEC and click "Generate Delay Map" to see ionospheric delay estimations.