Practice Ionospheric And Tropospheric Delays (14.6.2) - GNSS Survey

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9 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What are ionospheric delays?
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Think about the atmosphere and charged particles.
Question 2.
What affects tropospheric delays?
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Consider weather conditions.
3Question 3.
What causes ionospheric delays in GNSS?
- Solar activity
- Water vapor
- Temperature changes
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Consider what is present in that atmospheric layer.
4Question 4.
Tropospheric delays are influenced primarily by?
- True
- False
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Think about the weather affecting our signals.
Question 5.
Analyze a GNSS signal delay scenario where the ionosphere is experiencing high solar activity. What impact does this have on positioning accuracy?
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Consider how changes in the ionosphere affect signal speed.
Question 6.
You are tasked with surveying an area during a storm. Describe how you would account for tropospheric delays in your data collection.
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Think about models and corrections.

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