Annual and Sub-Annual Effects of EUV (Extreme Ultraviolet) Heating. Volume II. Comparison with Density Observations,

Abstract

By a detailed comparison of annual and sub-annual components of extreme ultraviolet (EUV) absorption heat input with those of the Jacchia models, the authors consider the importance of EUV heating in the annual and sub-annual variations of the upper atmosphere. When all the geometrical effects of EUV heat input have been taken into account, it is found that a remarkable correspondence exists between properties of each harmonic component of EUV heat input and Jacchia model temperature and densities. Equinoctial latitude independence of diurnal averaged annual and sub-annual components of heat input and density is proposed as a test of the significance of the EUV heat input. The Jacchia model is found to satisfy this test rigorously. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 15, 1972
Accession Number
AD0745309

Entities

People

  • Barbara K. Ching
  • Yam T. Chiu

Organizations

  • The Aerospace Corporation

Tags

DTIC Thesaurus Topics

  • Absorption
  • Acquisition
  • Atmospheres
  • Data Acquisition
  • Grids
  • Latitude
  • Observation

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Combustion and Flow Dynamics.
  • Space Exploration and Orbital Mechanics.