Accession Number:

ADA180990

Title:

Electron Density Profiles from Automatically Scaled Digital Ionograms. The Artist's Valley Solution.

Descriptive Note:

Technical rept.,

Corporate Author:

LOWELL UNIV MA CENTER FOR ATMOSPHERIC RESEARCH

Report Date:

1985-07-01

Pagination or Media Count:

48.0

Abstract:

Electron density true height profiles are calculated from automatically scaled Digisonde ionograms. The profile algorithm uses the modified polynomial fitting method separately for the E and the F region profile calculations. A new approach to considering the transition region between the E and F layers allows to determine the F profile with good accuracy from the ordinary echo trace. The total electron content between the peak of the E layer and the bottom of the F layer is estimated to account for the observed retardation as function of frequency on the F trace. No effort is made to find the valley shape since this is not possible from the O trace alone. The new algorithm is tested on some model ionograms. Keywords Electron density True height Digital ionograms Digisonde.

Subject Categories:

  • Atmospheric Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE