Accession Number:

ADA024408

Title:

The Construction of Storm-Time Corrections for Ionospheric F-Region Parameters and Their Application to Trans-Ionospheric Group-Path Delay.

Descriptive Note:

Annual rept. 1 Sep 74-31 Aug 75,

Corporate Author:

BOSTON UNIV MASS DEPT OF ASTRONOMY

Personal Author(s):

Report Date:

1976-03-01

Pagination or Media Count:

68.0

Abstract:

A two-part investigation of magnetic storm effect upon the mid-latitude ionosphere has been carried out using as its data the AFCRL Atlas of storm effects in the F-region parameters total electron content TEC, peak density N sub max and equivalent slab thickness tau. Part I deals with the problem of applying average storm patterns in percent as predictions for storm-time corrections to existing TEC, N sub max, and tau models used in various propagation systems. Part II describes an analysis performed to determine the extent of trans-ionospheric group delay enhancements at 1600 MHz associated with the so-called Positive ionospheric disturbances in TEC induced by geomagnetic storms. Statistical summaries are presented which describe the magnitude, duration and local time dependence of the enhancements in group delay delta tau, measured with respect to predicted values which do not take magnetic activity into account.

Subject Categories:

  • Atmospheric Physics
  • Radiofrequency Wave Propagation

Distribution Statement:

APPROVED FOR PUBLIC RELEASE