Correção Declinação
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
About this calculator
A Correção Declinação é uma ferramenta essencial em topografia e geodésia. Ela ajuda a calcular a correção necessária para compensar a declinação magnética, que é a diferença entre a direção verdadeira e a direção magnética.
A formula para calcular a correção declinação é simples: Az verd = Az mag + δ, where Az verd is the true direction, Az mag is the magnetic direction and δ is the magnetic declination.
Esta correção é crucial em projects de construção, como a instalação de tubulações, cabos elétricos and other underground systems. Additionally, it's important to consider the variability of the magnetic declination over time and space.
To get accurate results, it's important to keep in mind common considerations, such as the accuracy of the measurement of the magnetic declination and the consideration of local variations in the magnetic field.
Frequently asked questions
What is magnetic declination?
Magnetic declination is the difference between true direction and magnetic direction. It can vary over time and space.
Why is it important to consider magnetic declination in construction projects?
Magnetic declination is important in construction projects because it can affect the accuracy of measurements and the installation of underground systems.
How do I calculate magnetic declination correction?
The formula for calculating magnetic declination correction is simple: Az verd = Az mag + δ, where Az verd is the true direction, Az mag is the magnetic direction and δ is the magnetic declination.
What are common considerations when calculating magnetic declination correction?
Common considerations include the accuracy of the measurement of magnetic declination and the consideration of local variations in the magnetic field.