Howell, Benjamin F. (1942) Some effects of geologic structure on radio reception. Master's thesis, California Institute of Technology. http://resolver.caltech.edu/CaltechTHESIS:02262010-130747297
Radio fields at standard broadcast frequencies were examined over faults to determine how the geologic conditions affected the fields. The fields in rugged and densely inhabited areas were found to be too irregular to yield understandable patterns. Very small variations in the direction of the field were suggested but not proven over the San Jacinto Fault in the San Jacinto Valley. No variations in intensity were found over the San Andreas Fault east of Palm Springs, but variations were observed at some places over the Piedmont Fault in New Jersey. Such variations might be due to the higher conductivity of the fault plane, or to the addition of waves reflected and refracted by the fault surface. Weak areas near San Bernardino were noted, but could not be correlated with faults. Further studies, especially directional, with more delicate apparatus than used in this survey are needed.
|Item Type:||Thesis (Master's thesis)|
|Degree Grantor:||California Institute of Technology|
|Division:||Geological and Planetary Sciences|
|Thesis Availability:||Public (worldwide access)|
|Defense Date:||1 January 1942|
|Default Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Tony Diaz|
|Deposited On:||12 Apr 2010 16:02|
|Last Modified:||26 Dec 2012 03:21|
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