Prediction accuracies of 5° x 5° mean anomalies from 1° x 1° means at different latitudes
Loading...
Date
1968-11
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University. Division of Geodetic Science
Abstract
Covariance functions for 5' x 5' and 1° x 1° blocks are derived from the covariance function for point anomalies at different latitudes. Using the 1° x 1° covariance function at certain latitudes and different 1° x 1° configurations, prediction accuracies for 5° x 5° blocks are studied for three different methods. It is shown that the accuracies are generally the same for any one method at different latitudes for any given 1° x 1° configuration. If the number of 1° x 1° blocks in any 5° x 5° block is more than about ten, the arithmetic mean method gives practically the same accuracy as the minimum variance method even if all known 1° x 1° blocks are used.
Description
Prepared for Air Force Cambridge Research Laboratories, Office of Aerospace Research, United States Air Force, Bedford, Massachusetts: Contract No. AF19(628)-5701, Project 7600, Task No. 760002, 04