Question

In reduction of gravity data, the latitude correction is maximum at:

• A. 35° latitude
• B. 45° latitude
• C. 55° latitude
• D. 65° latitude

Hint:

The maximum latitude correction in gravity data occurs at 45° latitude due to the Earth's oblate shape and rotational effects on gravitational measurements.

Answer 1

The Correct Option is B

Latitude correction is important in gravity measurements as the Earth's gravitational field varies with latitude due to its oblate shape. The latitude correction is maximized at around 45°, which is halfway between the equator and the poles. This correction compensates for variations in Earth's gravity due to its shape and rotation.

Step 1: Understanding Latitude Correction.
Gravity measurements are influenced by the latitude because gravity is stronger at the poles and weaker at the equator. The greatest latitude correction occurs at 45° latitude, where the effect is the most pronounced.

Step 2: Correct Answer Identification.
The latitude correction is maximum at 45°, which is well-known in geophysical studies.

Final Answer: \boxed{(B)}