Webinar: Basics of Interpreting Ground Penetrating Radar Data - Part 1

How to read GPR data?
This webinar explores the basics of signals seen on GPR cross-sections. Understand responses from subsurface objects and boundaries. Learn that not everything you see in a GPR line is necessarily from the subsurface. Join us to understand how to avoid common pitfalls of GPR data interpretation.
Part 2 available here - • Webinar The Basics of ...
Contact Sensors & Software Inc. - www.sensoft.ca/contact-us-gpr/
GPR Interpretation Basics - Part 1
0:00 - Introduction
1:55 - What causes GPR Reflections?
4:25 - What controls the amount of GPR energy that reflects?
12:37 - GPR reflections from metallic and non-metallic utilities
16:17 - Geological reflections example
16:54 - Utility reflections example
18:50 - The shape of GPR signals
19:39 - Attenuation of GPR Signals
22:49 - Types of subsurface objects
24:20 - Hyperbolas in GPR images
27:00 - Tracking the path of a utility
28:32 - Crossing a utility at an angle
33:38 - Reflections from boundaries
34:20 - Direct air and ground arrivals at the top of all GPR images
37:24 - Direct arrivals change as surface conditions change
38:40 - Background radio frequency noise in GPR images
42:55 - Depth of GPR signal penetration
44:03 - GPR Interpretation Quiz
44:38 - Question 1 - Which target is likely non-metallic?
46:05 - Question 2 - What is the composition of the targets?
47:36 - Question 3 - Was this concrete data collected in the basement or on the second floor?
49:18 - Question 4 - What is the most plausible explanation of what happened to the pipe on Line 3?
51:22 - Question 5 - How do you interpret the vertical signals in the middle of this GPR line?
52:26 - Question 6 - Why is hyperbola 1 wider than hyperbola 2?
54:00 - Question 7 - Where is the gravel layer?
55:13 - Question 8 - What is happening in the concrete?
56:40 - Question 9 - Why are there no reflections here?
58:53 - Question 10 - What is causing the strong reflectors at about 1.6 meters?
1:00:15 - Summary
1:01:26 - Finish

[@completepreservation]

Fantastic webinar....now on to part 2 :)

[@myke0101]

Great Webinar for basic interpreting GPR data

[@valentinnistor8500]

One of the best webinars about GBR, thanks

[@m1sha2o]

Very helpful, thanks for sharing

[@pablodavidjimenezpatino2095]

This is Great! Congratz

[@diarpanduable]

Great Presentation...

[@user-qt2tp1cf3w]

Thank you for the interesting explanation, Can the water table be determined in the GPR profile based on the amplitude and how?

[@instinct0199]

Very very very! Helpful and informative thank you thank you ..hoping for more videos like this

[@sensoftgpr]

Thanks for your kind words. We are glad that you found it helpful. Be sure to watch the Interpretation Part 2 video!

[@ericbriones6580]

Thanks for sharing

[@padmalochanarao7568]

Thanks.

[@oan3055]

Great lecture Thank you! Can GPR be used to indicate corroded rebar or pipe? for instance would there be a difference in reflectivity between good steel and corroded steel- ferrous oxide?

[@xoloto513]

Thank you for posting your presentation, it helped me a lot

[@sensoftgpr]

Have you watched part 2 of this series ruclips.net/video/2DG3Z65O6yw/видео.html
Glad you liked it. Do let us know if you need more information. www.sensoft.ca/contact-us-gpr/

[@saidben3834]

Hello what 00212629582038 WhatsApp thanks

[@mikeconnery4652]

Very interesting thank you

[@ericpham4644]

The round object maybe because it was active meaning it has emision or vibration from transportation. A calibration is needed before confirm a other measurment.

[@zackbourne127]

vivid explanation

[@LubomirFotev]

Thanks for posting this, it's very informative.

[@sensoftgpr]

Check out part 2 of this series - ruclips.net/video/2DG3Z65O6yw/видео.html

[@tremendous6732]

Tremendous

[@craigtowell7670]

Nice webinar. In your computer simulations at the beginning the pulse is travelling out in a spherical wavefront, leading to large geometrical spreading losses. Why not simulate it more like a flashlight beam?

[@sensoftgpr]

The animation of a wavefront is how GPR waves propagate into the subsurface. We don’t try to narrow the beam width like a flashlight because that causes all kinds of other issues in the data.

[@craigtowell7670]

@@sensoftgpr thanks!

[@ericpham4644]

measurement. Reflection of heaven is more when it rain than dried season because universal frequency had more chance to go back from under

[@kobajamy1049]

Sr pls help me how to do interpretation of underdug caches ( metal items) ...not able to understand the graph

[@sensoftgpr]

Thank you!
Contact us here if you need more information - www.sensoft.ca/contact-us-gpr

[@danpride2804]

Please see Prides Corner Treasure Hunt, Your skills needed, see compensation package.

[@mohamedmorshdi6818]

Thanks for this amizing video.
Can I have conversation whit you?

[@sensoftgpr]

Thank you!
Contact us here if you need more information - www.sensoft.ca/contact-us-gpr

[@ericpham4644]

The expert can fool the sensor if the know technical data from sensor

[@khaliddarwish2572]

كم سعر جهاز

[@sensoftgpr]

Hi Khalid, please fill out this form, and one of our sales representatives will contact you. www.sensoft.ca/contact-us-gpr/