By Topic

Geological and geophysical considerations in radio propagation through the earth's crust

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Ames, L.A. ; U.S. Air Force Cambridge Research Laboratories, Bedford, MA, USA ; Frazier, J. ; Orange, A.

Geological and geophysical considerations applicable to radio propagation through the rock strata at the basement complex are presented. Information on electrical characteristics of rocks based on laboratory measurements on samples is shown to be misleading because in situ conditions are very difficult to analyze and reproduce. The complexity of the basement geology adds to the difficulty of predicting in situ rock characteristics pertinent to radio propagation. Folding and fracturing of the strata, variegated rock types and the anistropy of rock resistivity cause the actual propagation path loss to be vastly different than that predicted on the basis of a simple geological model. This conclusion is supported by the available experimental data. Deep resistivity measurements made from the surface indicate that basement strata will have resistivities of the order of 10^{3}-10^{4} ohm-meters over most of the United States.

Published in:

Antennas and Propagation, IEEE Transactions on  (Volume:11 ,  Issue: 3 )