Thesis (M.S. in Applied Physics)--Naval Postgraduate School, June 2010. / Thesis Advisor(s): Smith, Craig ; Second Reader: Glenn, Lew. "June 2010." Description based on title screen as viewed on July 14, 2010. Author(s) subject terms: National Ignition Facility, GEODYN, Ground Coupling, Coupling Curve, Surface Nuclear Detonation. Includes bibliographical references (p. 73). Also available in print.

Thesis--Wisconsin. / Vita. Includes bibliographical references (leaves 171-176).

Thesis (M.S.)--University of Wisconsin--Madison. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 52-53).

Thesis (Ph. D.)--University of Wisconsin--Madison, 1970. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (M.S.)--University o Wisconsin--Madison, 1982. / Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 19-20).

Thesis (M.S.)--University of Wisconsin--Madison, 1968. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (M.S.) -- University of Texas at Dallas, 2006 / Includes vita. Includes bibliographical references (leaves 24-25)

Thesis (Ph.D.) -- University of Texas at Dallas, 2005 / Includes vita. Includes bibliographical references (leaves 155-169)

The classification and possible origin of geomagnetic micropulsations are discussed. In particular, pearls are described in some detail and previous investigations reviewed. Records from Victoria and Resolute Bay, Canada; Uppsala, Sweden; Reykjavik, Iceland; Huancayo, Peru; Ruth, Nevada and Isabella and Palomar, California are examined and the times of commencement and termination of pearl activity determined. The conclusion is reached that pearls in mid-latitudes are local mean time dependent and tend to occur during two periods of the day. These periods correspond roughly to sunrise and sunset, the times of rapid change in the critical frequency in the F₂ layer. Pearls seem to occur most often when the geomagnetic Kp index is less than 4o and greater than 0₊. No correlation is evident between occasional pearl-like signals at Huancayo and pearls observed at other stations. It is suggested that the appearance of pearls is to a certain extent controlled by local ionospheric conditions. / Science, Faculty of / Physics and Astronomy, Department of / Graduate

Normally, the wobble of the earth has been dealt with in a manner that assumes that the two main periodic components have constant phase and amplitude. An initial assumption of this thesis is that both these parameters can vary with time. A technique of predictive filtering is used to determine the Chandler component of the wobble from basic latitude measurements at the five I.L.S. observatories. A simple analytic procedure is employed to obtain the phase and amplitude variation of the periodic Chandler motion. The results indicate that major changes in both phase and amplitude occur in the period 1922 to 1949. These changes are possibly associated with earthquake activity, although there is nothing to indicate that there is a correlation between individual earthquakes and events in the Chandler motion. The calculated period of the Chandler wobble is 437 days and the damping time is so uncertain that a value approaching infinity is not unlikely. / Science, Faculty of / Earth, Ocean and Atmospheric Sciences, Department of / Graduate