AIG Resistivity Method

If you are going to be doing a scientific experiment to test the soil in a certain area, you probably have a few end goals. For one thing, you want to find out what is included in the soil, looking for things like nitrogen, when can be very important to plant growth. You may also be looking for contamination that could come from pollution in the nearby area or from acid rain. Finally, you might just be looking at the natural soil composition to find out how much is true soil, how much is rock, how much is sand, and how saturated the area is with underground water sources.

A good first step is to use the AIG resistivity method to test the area and see what is below the surface. The resistivity meter is going to send out an impulse of electricity, something so small that you cannot even see it, but the machine can track it and watch the speed at which it passes through the ground. The speed is going to vary depending on what materials it is passing through. For example, it may move faster if there are metal deposits in the soil or if there is a major waterway below the surface.

After you track the speed of the electricity, you can compare it to a chart of elements that are commonly found underground - different types of rock, for instance, or clay - and the speed at which electricity moves through those things. You can then look at the differences in speed and easily see what is down there since the electricity is going to move in a predictable fashion. With most machines, you do not even have to do all of this by hand. The machine is going to create a 2D or a 3D model - depending on which one you get - that will show you what you have found.

This is a good starting point for your experiment because it gives you some solid information to form the basis of your test. You really know what the area is like and what you should expect before you start. This helps you know how you should carry out the experiment and what you need to do to get accurate results. It can also make it easier to see things that you did not expect; outliers like pollution are really going to stand out.

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