Self-Consistent Modeling of the Ionosphere-Thermosphere-Magnetosphere System

Abstract

One of the most significant results to emerge from this contract is the systems theory approach to thermospheric dynamics which was developed as part of the Dissertation research of Mihail Codrescu, a Ph.D. student supported by AFOSR. The basic components of the computational approach are a piecewise linearization method capable of preserving nonlinear features of a dynamical system (in this case, the NCAR TIGCM), and a response function 'library' consisting of quasi-steady state and sample response functions characteristic of the system. A typical usage would be approximating the dynamical thermospheric response to an arbitrary change in forcing by performing a specialized convolution between the specified forcing and an appropriate set of response functions from the 'library'. This methodology may provide the basis for computationally efficient real-time (operational) predictions without on-line use of a TIGCM.

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Document Details

Document Type
Technical Report
Publication Date
May 31, 1992
Accession Number
ADA253232

Entities

People

  • Jeffrey M. Forbes

Organizations

  • Boston University

Tags

Communities of Interest

  • Human Systems

DTIC Thesaurus Topics

  • Contracts
  • Convolution
  • Couplings
  • Dynamics
  • Engineering
  • Gravity Waves
  • High Latitudes
  • Ionosondes
  • Ionosphere
  • Magnetic Storms
  • Magnetosphere
  • Mechanical Engineering
  • Steady State
  • Students
  • Thermosphere
  • Theses
  • Universities

Readers

  • Computational Modeling and Simulation
  • Control Systems Engineering.
  • Technical Research and Report Writing.