La medición de vapor de agua tiene una importancia fundamental desde un punto de vista climatológico. Este gas es tanto un síntoma como una causa del efecto invernadero. Su medición resulta fundamental para la creación de modelos climáticos realistas, y para el estudio del comportamiento climático global. Esta tesis pretende realizar un aporte a la medición de este parámetro, utilizando diferentes técnicas, como radiosondeos. posicionamiento global (GPS), y radiómetros de vapor de agua ubicados en satélites. Los resultados permiten estimar vapor de agua integrado (IPWV) desde distintas técnicas, resultando un importante aporte principalmente en regiones donde actualmente no se dispone de este dato.

Preparatory steps for the experimental investigation of the highly forbidden 5s - 6s transition in rubidium using an atom trap and laser cooling are reported. A magneto-optical trap (MOT) has been assembled including saturation spectroscopy and a dichroic vapor laser lock. A frequency-doubled diode laser system has been installed to perform the spectroscopy of the forbidden transition with cold Rb atoms in the trap. The properties of the ns - n's transition in the presence of an external electric fi#12;eld have been investigated theoretically. A fi#12;rst measurement will be exploring the Stark-induced transition amplitude and the very faint magnetic dipole amplitude. The rubidium experiment is a precursor study for a long-term project at TRIUMF, Canada's National Laboratory for nuclear and particle physics, to measure atomic parity violation in the equivalent 7s - 8s transition in francium, the heaviest alkali atom which has no stable isotopes.

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Thesis (M.S.)--Rochester Institute of Technology, 1994. / Typescript. Includes bibliographical references (leaves 134-137).

Thesis (M.S.)--Rochester Institute of Technology, 1991. / Typescript. Includes bibliographical references (leaves 165-168).

Thesis (Ph. D.)--University of Michigan, 1928. / Cover title. At head of title: Exhibit A.

Thesis (Ph. D.)--Mechanical Engineering, Georgia Institute of Technology, 2005. / Z.L. Wang, Committee Member ; Thomas Starr, Committee Member ; Mostafa Ghiaasiaan, Committee Member ; W. Jack Lackey, Committee Chair; Shreyes Melkote, Committee Member. Vita. Includes bibliographical references.

Thesis (Ph.D.)--Syracuse University, 2007. / "Publication number: AAT 3295538."

Thesis (Ph. D.)--University of Washington, 1996. / Vita. Includes bibliographical references (leaves [158]-168).

Thesis (M.S.)--University of Wisconsin--Madison, 1966. / eContent provider-neutral record in process. Description based on print version record. Bibliography: l. 36-38.