Webinar The Basics of Interpreting GPR Data Part 2 Quiz and Answers
GPR Interpretation Basics – Part 2
This is the second webinar in our series on the Basics of Interpreting GPR Data. It is an extension of Part 1 and covers more advanced areas of GPR data interpretation.
If you have not seen Part 1, it is suggested that you watch it before attending Part 2. The recording of Part 1 can be found here: Webinar: Basics of Interpreting Groun...
Can’t make it? Register anyway and we’ll send you a link to the recorded session once it’s available or Subscribe to our YouTube channel and don’t miss out!
Website: https://www.sensoft.ca/
0:00 - Introduction
0:16 – Review of Part 1
3:51 – Using Hyperbolas to calibrate for target depth
13:20 – Targets of Different Shapes
18:27 – Reflections from the bottom of a non-metallic pipe
19:45 – Determining the diameter of a non-metallic pipe
23:18 – “Ringy” responses
26:47 – Reflections within a non-metallic pipe
28:17 – Responses from Point Targets
30:30 – Responses from small, shallow metal objects
32:35 – Air waves
36:06 – How to measure the distance to an object in air
41:15 – Responses from large diameter objects
42:37 – Responses from Utilities in trenches
45:12 – Random Noise
46:14 – Coherent System Noise
51:30 – GPR Interpretation Quiz
51:40 – Question 1 – How many utilities?
52:35 – Question 2 – How many targets?
53:44 – Question 3 – Could the strong, flat reflector be the water table?
55:40 – Question 4 – How high is the ceiling of the warehouse?
56:33 – Question 5 – What could cause these types of reflections?
58:28 – Question 6 – Which object is not round?
58:55 – Question 7 – Did the GPR line end near a utility or is the hyperbola an air wave?
1:00:22 – Question 8 – Could this be a coffin buried 6 feet deep?
1:01:30 – Question 9 – Which hyperbola is best to calibrate on?
1:02:30 – Question 10 – Why is the reflection from the bottom of the concrete slab missing?
1:04:06 – Finish
This is the second webinar in our series on the Basics of Interpreting GPR Data. It is an extension of Part 1 and covers more advanced areas of GPR data interpretation.
If you have not seen Part 1, it is suggested that you watch it before attending Part 2. The recording of Part 1 can be found here: Webinar: Basics of Interpreting Groun...
Can’t make it? Register anyway and we’ll send you a link to the recorded session once it’s available or Subscribe to our YouTube channel and don’t miss out!
Website: https://www.sensoft.ca/
0:00 - Introduction
0:16 – Review of Part 1
3:51 – Using Hyperbolas to calibrate for target depth
13:20 – Targets of Different Shapes
18:27 – Reflections from the bottom of a non-metallic pipe
19:45 – Determining the diameter of a non-metallic pipe
23:18 – “Ringy” responses
26:47 – Reflections within a non-metallic pipe
28:17 – Responses from Point Targets
30:30 – Responses from small, shallow metal objects
32:35 – Air waves
36:06 – How to measure the distance to an object in air
41:15 – Responses from large diameter objects
42:37 – Responses from Utilities in trenches
45:12 – Random Noise
46:14 – Coherent System Noise
51:30 – GPR Interpretation Quiz
51:40 – Question 1 – How many utilities?
52:35 – Question 2 – How many targets?
53:44 – Question 3 – Could the strong, flat reflector be the water table?
55:40 – Question 4 – How high is the ceiling of the warehouse?
56:33 – Question 5 – What could cause these types of reflections?
58:28 – Question 6 – Which object is not round?
58:55 – Question 7 – Did the GPR line end near a utility or is the hyperbola an air wave?
1:00:22 – Question 8 – Could this be a coffin buried 6 feet deep?
1:01:30 – Question 9 – Which hyperbola is best to calibrate on?
1:02:30 – Question 10 – Why is the reflection from the bottom of the concrete slab missing?
1:04:06 – Finish
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