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The nature of adjoint sensitivities with respect to model parameters and their use in adaptive data assimilation /Ancell, Brian C. January 2006 (has links)
Thesis (Ph. D.)--University of Washington, 2006. / Vita. Includes bibliographical references (p. 107-112).
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Vergil, Aratus and others the weather-sign as a literary subjectGillespie, William Ernest, January 1938 (has links)
Thesis (Ph. D.)--Princeton University, 1937. / Lithoprinted. Bibliography: p. 69-72.
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The dissipation of radiation fog by insolation processesWright, William Barton, January 1966 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1966. / eContent provider-neutral record in process. Description based on print version record. Bibliography: l. 43-44.
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Seasonality in human mortality a demographic approach /Rau, Roland. January 2007 (has links)
Thesis (doctoral) - Universität, Rostock, 2005. / Includes bibliographical references (p. [187]-214).
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Essays on using weather derivatives in dairy productionChen, Gang 12 September 2005 (has links)
No description available.
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A monthly forecast strategy for Southern AfricaTennant, Warren James January 1998 (has links)
Dissertation submitted to the Faculty of Science,
University of the Witwatersrand, Johannesburg
for the Degree of Master of Science / Various techniques and procedures suited to monthly
forecasting are investigated and tested. These include using the
products generated by atmospheric general circulation models during
a 17-year hindcast experiment, and downscaling the forecast
circulation to regional rainfall in South Africa using circulation
indices and canonical correlation analysis. The downscaling methods
are evaluated using the cross-validation technique. Various model
forecast bias-correction methods and skill-enhancing ensemble
techniques are employed to improve the 30-day prognosis of the
model. Forecasts from the general circulation model and each
technique are evaluated. Those demonstrating reasonable skill over
the southern Africa region, and which are feasible when considering
available resources, are adopted into a strategy which can be used
operationally to produce monthly outlooks. Various practical issues
regarding the operational aspects of long-term forecasting are also
discussed. / Andrew Chakane 2019
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The aliased and the de-aliased spectral models of the shallow water equationsUnknown Date (has links)
"The most widely used spectral models with the transform method are the de-aliased spectral model in which the de-aliased technique is used in the discrete Fourier transform according to the 3/2-rule. From the viewpoint of the Walsh-Hadamard transform, the multiplications of the values of the variables on the gridpoints do not yield the aliasing terms. In the shallow water equations, we compare the aliased spectral model with the de-aliased spectral model using the initial conditions of the Rossby-Haurwitz wave and the FGGE data. The aliased spectral models are more accurate and more efficient than the de-aliased spectral models. For the same wavenumber truncation, the computational amount of the aliased spectral model is only 60 percent of the de-aliased spectral model. We have not yet discovered the phenomenon of the nonlinear computational instability induced by the aliasing terms in the long time integration of the aliased spectral models. Thus, in the spectral models with the transform method the necessity of using the 3/2-rule in the discrete Fourier transform may be viewed with suspicion"--Abstract. / Typescript. / "Spring Semester, 1991." / "Submitted to the Department of Meteorology in partial fulfillment of the requirements for the degree of Master of Science." / Advisor: Richard L. Pfeffer, Professor Directing Thesis. / Includes bibliographical references (leaves 92-95).
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Boundaries of research : civilian leadership, military funding, and the international network surrounding the development of numerical weather prediction in the United StatesHarper, Kristine C. 25 April 2003 (has links)
American meteorology was synonymous with subjective weather forecasting in the
early twentieth century. Controlled by the Weather Bureau and with no academic
programs of its own, the few hundred extant meteorologists had no standing in the
scientific community. Until the American Meteorological Society was founded in
1919, meteorologists had no professional society. The post-World War I rise of
aeronautics spurred demands for increased meteorological education and training.
The Navy arranged the first graduate program in meteorology in 1928 at MIT. It
was followed by four additional programs in the interwar years. When the U.S.
military found itself short of meteorological support for World War II, a massive
training program created thousands of new mathematics- and physics-savvy
meteorologists. Those remaining in the field after the war had three goals: to create
a mathematics-based theory for meteorology, to create a method for objectively
forecasting the weather, and to professionalize the field. Contemporaneously,
mathematician John von Neumann was preparing to create a new electronic digital
computer which could solve, via numerical analysis, the equations that defined the
atmosphere. Weather Bureau Chief Francis W. Reichelderfer encouraged von
Neumann, with Office of Naval Research funding, to attack the weather forecasting
problem. Assisting with the proposal was eminent Swedish-born meteorologist
Carl-Gustav Rossby. Although Rossby returned to Stockholm to establish his own
research school, he was the de facto head of the Meteorology Project providing
personnel, ideas, and a publication venue. On-site leader Jule Charney provided the
equations and theoretical underpinnings. Scandinavian meteorologists supplied by
Rossby provided atmospheric reality. Six years after the Project began,
meteorologists were ready to move their models from a research to an operational
venue. Attempts by Air Force meteorologist Philip D. Thompson to co-opt
numerical weather prediction (NWP) prompted the academics, Navy, and Weather
Bureau members involved to join forces and guarantee that operational NWP
would remain a joint activity not under the control of any weather service. This is
the story of the professionalization of a scientific community, of significant
differences in national styles in meteorology, and of the fascination (especially by
non-meteorologists) in exploiting NWP for the control of weather. / Graduation date: 2003
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Seasonality in human mortality a demographic approach /Rau, Roland. January 2007 (has links)
Thesis (doctoral)--Universität, Rostock, 2005. / Description based on print version record. Includes bibliographical references (p. [187]-214).
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Seasonality in human mortality a demographic approach /Rau, Roland. January 2007 (has links)
Thesis (doctoral) - Universität, Rostock, 2005. / Includes bibliographical references (p. [187]-214).
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