No Paper
GIS Solutions to Problems in Physical Geodesy
Track: Defense and Intelligence
Author(s): James Beale

The aim of physical geodesy is an understanding of the structure of the Earth's

gravity field. Knowledge of the Earth’s gravity field plays a role in Inertial Navigation

Systems, defining heights, and in monitoring temporal variations of mass within the


In this discussion, we focus on the role of GIS in the analysis of local and global

sets of point gravity measurements that are used to develop worldwide gravity models.

We will describe the features of the data and describe a simple data model. We will

describe unique characteristics and features of sample data sets and illustrate the types

of tools required to perform interesting geodetic computations. Finally, we will provide

examples of the physical insight that a GIS analysis can provide into the behavior of

the data.

James Beale
1227 Big Bend Rd
Manchester , Missouri 63021
United States
Phone: 314-676-0821
E-mail: james.r.beale@nga.mil