14.6.2. Ionospheric and Tropospheric Delays

Try these first

1. 1.

   What are ionospheric delays?

   Hint

   Think about the atmosphere and charged particles.

2. 2.

   What affects tropospheric delays?

   Hint

   Consider weather conditions.

3. 3.

   What causes ionospheric delays in GNSS?

   • Solar activity
   • Water vapor
   • Temperature changes

   Hint

   Consider what is present in that atmospheric layer.

4. 4.

   Tropospheric delays are influenced primarily by?

   • True
   • False

   Hint

   Think about the weather affecting our signals.

5. 5.

   Analyze a GNSS signal delay scenario where the ionosphere is experiencing high solar activity. What impact does this have on positioning accuracy?

   Hint

   Consider how changes in the ionosphere affect signal speed.

6. 6.

   You are tasked with surveying an area during a storm. Describe how you would account for tropospheric delays in your data collection.

   Hint

   Think about models and corrections.