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The radio occultation principle
- Title The radio occultation principle
- Released 28/03/2002 10:45 am
- Copyright ESA
A schematic of atmospheric profiling by GPS radio occultation. An occultation occurs whenever a GPS satellite rises or sets on the Earth limbs as seen from the Low Earth orbit (LEO) satellite. The GPS signal is refracted and slowed as it traverses the Earth’s atmospheric limb. This causes a phase delay that relates to characteristics of the Earth's atmosphere.
- Id 194211