A Simulation Study to Test the Prediction of 1 deg x 1 deg Mean Gravity Anomalies Using Least Squares Collocation from the GRAVSAT Mission,

Abstract

The purpose of this simulation study was to test the accuracy of prediction of mean gravity anomalies from the GRAVSAT mission, to establish the resolution achievable in terms of anomaly block size, and to draw conclusions for the data requirement for economical processing in terms of computer time. It was found that though the estimates of the formal standard deviation of the predicted 1 deg anomalies were reduced with the increase in size of the data cap, and with the increase in the density of data inside the cap, there was little improvement in the predicted value of 1 deg anomalies by least squares collocation technique. Besides, there was a large increase in the computer time required for the processing of the increased data.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1981
Accession Number
ADA108867

Entities

People

  • Dhaneshwar P. Hajela

Organizations

  • Ohio State University

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Altitude
  • Computational Science
  • Computations
  • Data Processing
  • Data Reduction
  • Error Analysis
  • Gravitational Fields
  • Gravity Anomalies
  • Grids
  • Line Of Sight
  • Measurement
  • Short Wavelengths
  • Simulations
  • Statistics
  • Weighting Functions

Readers

  • Computational Modeling and Simulation
  • Geodesy