How to Calculate and Solve for Elevation Correction | Gravity
Last Updated on April 15, 2024
The image above represents elevation correction. To calculate elevation correction, two essential parameters are needed and these parameters are Free Air Correction (δgF) and Bouguer Correction (δgB).
The formula for calculating elevation correction:
δgE = δgF – δgB
Where:
δgE = Elevation Correction
δgF = Free Air Correction
And, δgB = Bouguer Correction
Let’s solve an example;
Find the elevation correction when the free air correction is 12 and the bourger correction is 17.
This implies that;
δgF = Free Air Correction = 12
δgB = Bouguer Correction = 17
That is, δgE = δgF – δgB
δgE = 12 – 17
δgE = -5
Therefore, the elevation correction is -5 mGal.
Calculating the Free Air Correction when the Elevation Correction and the Bourger Correction are Given
δgF = δgE + δgB
Where;
δgF = Free Air Correction
δgE = Elevation Correction
And, δgB = Bouguer Correction
Let’s solve an example;
Find the free air correction when the elevation correction is 34 and the bourger correction is 21.
This implies that;
δgE = Elevation Correction = 34
δgB = Bouguer Correction = 21
This means, δgF = δgE + δgB
δgF = 34 + 21
δgF = 55
Therefore, the free air correction is 55.
Read more:How to Calculate and Solve for Free Air Anomaly | Gravity
Calculating the Bourger Correction when the Elevation Correction and the Free Air Correction is Given
δgB = δgF – δgE
Where;
δgB = Bouguer Correction
δgE = Elevation Correction
And, δgF = Free Air Correction
Let’s solve an example;
Find the bourger correction when the elevation correction is 21 and the free air correction is 44.
This implies that;
δgE = Elevation Correction = 21
δgF = Free Air Correction = 44
Then, δgB = δgF – δgE
δgB = 44 – 21
δgB = 23
Therefore, the bourger correction is 23.
How to Calculate Elevation Correction | Gravity in Nickzom Calculator
Nickzom Calculator – The Calculator Encyclopedia is capable of calculating the elevation correction.
To get the answer and workings of the elevation correction using the Nickzom Calculator – The Calculator Encyclopedia. First, you need to obtain the app.
You can get this app via any of these means:
Web – https://www.nickzom.org/calculator-plus
To get access to the professional version via web, you need to register and subscribe for NGN 2,000 per annum to have utter access to all functionalities.
You can also try the demo version via https://www.nickzom.org/calculator
Android (Paid) – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator
Android (Free) – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator
Apple (Paid) – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8
Once, you have obtained the calculator encyclopedia app, proceed to the Calculator Map, then click on Geology under Add-on.
Now, Click on Gravity under Geology
So, Click on Elevation Correction under Gravity
The screenshot below displays the page or activity to enter your values, to get the answer for the elevation correction according to the respective parameters which are the Free Air Correction (δgF) and Bouguer Correction (δgB).
Now, enter the values appropriately and accordingly for the parameters as required by the Free Air Correction (δgF) is 12 and Bouguer Correction (δgB) is 17.
Finally, Click on Calculate
As you can see from the screenshot above, Nickzom Calculator– The Calculator Encyclopedia solves for the elevation correction and presents the formula, workings and steps too.
