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GPR Imagery Overview
Understanding GPR Imagery is a learned skill. Below are the basic
fundamentals of GPR imagery interpretation.
The MDS‑10 has a unique visual representation of subsurface imagery. This allows the Operator to
distinguish anomalies visually, as well as audibly. Visual interpretation is based on soil composition, size,
shape and density of the anomaly.
Basics of GPR Imagery
The MDS‑10 displays GPR raw data which shows an image of buried objects and sub surface structures.
Data scrolls in real‑time across the screen from right to left (4). The image represents 4 seconds of data, with
the left representing data from 4 seconds ago. The most recent data is displayed on the right.
Shallow buried objects (close to Sensor Head) will be displayed near the top of the image and deep buried
objects are displayed lower in the image.
Parts of the GPR Imagery
Note: GPR imagery varies with type, density and moisture content of soil.
Least recent data
1. Air
The space from the bottom of the Sensor Head
to the surface of the ground.
2. Ground surface response
The most prominent (dark and light) lines show
the ground surface response.
4 s
3 s
Seconds since data creation
3. Area under ground
Everything below the ground bounce line is
displaying what is in the ground.
4. Data Flow
Arrow shows the direction of data flow across
the screen from right to left.
2 s
1 s
Most recent data
1
2
3
4
GPR Overview | 43
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