Validation of Ionospheric Models

Abstract

During the period of April 1999 through March 2000, research efforts continued in the Validation of ionospheric Models. These efforts included the development and augmentation of a model that predicts positioning errors for the single-frequency GPS user. This model has the ability to utilize the Parameterized ionosphere Model (PIM) or the Parameterized Real-time ionosphere Model (PRISM). This model has further been assimilated into the Operational Space Environment Network Display (OP-SEND) space weather product Other efforts included comprehensive validations of PIM and PRISM together with comparisons of PIM with other climatological models. Advancements were also made in the development of analytical techniques to theoretically model Equatorial Spread F. A database of TEC from the TOPEX satellite was accessed and used to describe longitudinal dependence of the equatorial anomaly and to test ExB control of the anomaly features of the LowLat model. Finally, efforts to define a relationship between rapid changes in TEC and amplitude scintillation were made.

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Document Details

Document Type
Technical Report
Publication Date
Mar 31, 2000
Accession Number
ADA419681

Entities

People

  • Patricia H. Doherty

Organizations

  • Boston College

Tags

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Amplitude
  • Artificial Satellites
  • Data Sets
  • Electron Density
  • Environment
  • Global Positioning Systems
  • Ground Based
  • Ionosphere
  • Ionospheric Models
  • Jet Propulsion
  • Magnetic Fields
  • Measurement
  • Meteorological Satellites
  • Space Environments
  • Space Weather
  • Spacecraft

Readers

  • Computational Modeling and Simulation
  • Positioning, Navigation, and Timing (PNT) Technology.
  • Space/Atmospheric Physics.

Technology Areas

  • Space