Accession Number:

ADA053312

Title:

The 1979 Solar Eclipse and Validation of D-Region Models.

Descriptive Note:

Technical rept.,

Corporate Author:

ARMY ELECTRONICS RESEARCH AND DEVELOPMENT COMMAND WSMR NM ATMOSPHERIC SCIENCES LAB

Personal Author(s):

Report Date:

1978-03-01

Pagination or Media Count:

38.0

Abstract:

The 26 February 1979 solar eclipse provides an opportunity for controlled experiments to help differentiate among the several processes of D-region ionization. One major concern is whether the sources of ionization are largely solar or predominantly due to particle precipitation. Of equal importance are the electron attachment and detachment processes which determine the free electron densities. Comparisons of current gas-phase ion chemistry calculations with scattered available data show serious discrepancies for electron density variations above 70 km. The inclusion of a new class of reactions involving aerosols or particulates would seem to be indicated. A correct determination of D-region electron densities and electron attachment and detachment processes is necessary for proper utilization of Army communications systems and a better understanding of the effects of nuclear weapons in the middle atmosphere. Author

Subject Categories:

  • Atmospheric Physics
  • Nuclear Physics and Elementary Particle Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE