Accession Number:

AD0292730

Title:

STUDIES OF THE F-REGION BY THE INCOHERENT BACK-SCATTER METHOD

Descriptive Note:

Corporate Author:

MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB

Personal Author(s):

Report Date:

1962-07-24

Pagination or Media Count:

1.0

Abstract:

The illstone Hill radar facility operated by Lincoln Laboratory has made measurements of the distribution of electrons in the F-region of the ionosphere by observing the weak incohere t backscatter signal. These measurements were first made early in 1960 and were continued throughout 1961 on a routine basis at least once a week. All electron density profiles measured up to the end of 1961 are presented. Results of spectralANALYSES OF THE SIGNALS MADE EARLY IN 1962 ARE ALSO GIVEN. The distribution of electrons above the peak of the F-region has been a subject of special study. On the basis of the results obtained to date the conclusions reached are a the scale height of the electron density increases with height, b the ion temperature is not very dependent on height, though it does show a marked diurnal variation, c the electron-to-ion temperature ratio is 11 during the hours of darkness, but during the daytime it increases to a peak value of approximately 1.61 around noon and d the scattering cross section for the electrons is close to the expected value when allowance is made for c. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE