4.15.2. Atmospheric Disturbances

Try these first

1. 1.

   What is ionospheric scintillation?

   Hint

   Think about what happens to the signals when ionospheric conditions change.

2. 2.

   How many satellites must be visible for accurate GNSS positioning?

   Hint

   Consider how triangulation works.

3. 3.

   What type of atmospheric disturbance causes rapid fluctuations in GNSS signal strength?

   • Ionospheric Scintillation
   • Tropospheric Delay
   • Multipath Effect

   Hint

   Remember the changes related to charged particles in the ionosphere.

4. 4.

   True or False: Atmospheric disturbances always enhance the accuracy of GNSS.

   • True
   • False

   Hint

   Think about how weather affects signal transmission.

5. 5.

   Imagine you are an engineer working on a project in a mountainous area. Describe how atmospheric disturbances might affect your GNSS-based surveying and suggest two mitigation strategies.

   Hint

   Consider how the topography impacts satellite signals and what tools can counteract this.

6. 6.

   You are tasked with evaluating the effect of ionospheric scintillation on GNSS in an area experiencing high solar activity. What factors would you consider, and how would you determine adjustments to improve accuracy?

   Hint

   Focus on the relationship between solar activity and ionospheric behavior.