Accession Number:

AD0529359

Title:

Experiments and Models in Prairie Smoke

Descriptive Note:

Final technical rept. 1 Sep 1971-31 Oct 1973

Corporate Author:

AERONOMY CORP CHAMPAIGN IL

Report Date:

1973-12-15

Pagination or Media Count:

82.0

Abstract:

This final report describes additional experiments to study the morphology of artificial spread F ASF irregularities by measuring the scintillation of VHF and UHF signals transmitted through the disturbed region from geostationary and orbital satellites. Scintillation depth, structure size and drift velocity measurements are described for Prairie Smoke IV, and are related to heater power. Detailed correlation analysis shows the presence of a smaller structure in ASF of about 10 meter size. The results of these experiments are combined into a model for scintillation and spread F. The report also contains recommendations on the effect of antenna power patterns and beam steering on field-aligned VHF scatter and on models for D-region absorption.

Subject Categories:

  • Active and Passive Radar Detection and Equipment
  • Radiofrequency Wave Propagation
  • Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE