Thermospheric Density Variability and Forecast Model Development.

Abstract

Thermospheric densities derived from SETA-1, SETA-2 and SETA-3 accelerometer data, and cross track winds from SETA-1, were analyzed to determine the nature of latitudinal structures at latitudes greater than 45 degrees. Distinct dependencies on magnetic activity level, local time, hemisphere and season are revealed. Empirical models such as MSIS or J70 do not represent the observed high latitude structures. The Coupled Thermosphere Ionosphere Model (CTIM), however, is able to reproduce several of the salient high latitude structures revealed in the SETA data, albeit usually at about half the amplitude.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 15, 1997
Accession Number
ADA326239

Entities

People

  • Jeffrey M. Forbes
  • Timothy Fuller-rowell

Organizations

  • University of Colorado Boulder

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Amplitude
  • Atmospheric Density
  • Climate Change
  • Data Analysis
  • Data Sets
  • Databases
  • Electric Fields
  • Grids
  • Grids (Coordinates)
  • Hemispheres
  • High Latitudes
  • Intensity
  • Latitude
  • Magnetic Storms
  • Solar Activity
  • Spatial Distribution
  • Statistical Analysis

Fields of Study

  • Environmental science

Readers

  • Space/Atmospheric Physics.