Article | REF: R1814 V1

Measuring the Earth's gravity field

Author: Michel DIAMENT

Publication date: June 10, 2005

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


1. Earth's gravity field

A point of mass on the Earth's surface, rotating with it, undergoes an acceleration known as gravity acceleration. This acceleration is the result of the Newtonian attractions of the Earth's masses (gravity), the centrifugal acceleration due to the Earth's rotation, and the Newtonian attraction of the other bodies in the solar system (in practice, these are essentially the Moon, not very massive but close, and the Sun, distant but very massive). The modulus of the acceleration of gravity at a given point and time, known as gravity, therefore depends on the distribution of masses in the Earth and in the immediate vicinity of the measurement point, its geographical position and its relative position to the Moon and Sun.

In the International System (SI), the unit of gravity is the meter per square second (m/s 2 ). Spatial...

You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


The Ultimate Scientific and Technical Reference

A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors
+ More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year
From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

This article is included in

Mechanical and dimensional measurements

This offer includes:

Knowledge Base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

Practical Path

Operational and didactic, to guarantee the acquisition of transversal skills

Doc & Quiz

Interactive articles with quizzes, for constructive reading

Subscribe now!

Ongoing reading
Earth's gravity field