NTRS - NASA Technical Reports Server

As of October 27, 2023, NASA STI Services will no longer have an embargo for accepted manuscripts. For more information visit NTRS News.

Back to Results
Effects of turbulence on average refraction angles in occultations by planetary atmospheresFour separable effects of atmospheric turbulence on average refraction angles in occultation experiments are derived from a simplified analysis, and related to more general formulations by B. S. Haugstad. The major contributors are shown to be due to gradients in height of the strength of the turbulence, and the sense of the resulting changes in refraction angles is explained in terms of Fermat's principle. Because the results of analyses of such gradient effects by W. B. Hubbard and J. R. Jokipii are expressed in other ways, a special effort is made to compare all of the predictions on a common basis. We conclude that there are fundamental differences, and use arguments based on energy conservation and Fermat's principle to help characterize the discrepancies.
Document ID
Document Type
Reprint (Version printed in journal)
Eshleman, V. R.
(Stanford University Stanford, Calif., United States)
Haugstad, B. S.
(Stanford Univ. CA, United States)
Date Acquired
August 9, 2013
Publication Date
May 1, 1978
Publication Information
Publication: Icarus
Volume: 34
Subject Category
Lunar And Planetary Exploration
Accession Number
Distribution Limits

Available Downloads

There are no available downloads for this record.
No Preview Available