Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Mars Global Surveyor"”.
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Low frequency plasma waves at Mars
Mars Global Surveyor's magnetometer/electron reflectometer (MAG/ER) experiment has returned over eight years of observations of low frequency plasma waves produced in the interaction of the solar wind with the Martian ionosphere. Using the MAG/ER data, I identify the properties and physical origins …
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Judging a planet by its cover : insights into lunar crustal structure and Martian climate history from surface features
… of the Moon and the climatic history of Mars. In chapter 2, I use gravity data from the Gravity Recovery and Interior Laboratory (GRAIL) mission to constrain the quantity and location of hidden volcanic deposits on the Moon. In chapter 3, I combine GRAIL data with elevation measurements …
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Simulation of the radiative flux at the martian surface between 180 and 1100 nm
… radiative transfer model of the atmosphere of Mars, the UVIS simulation, has been created to simulate the non-ionising radiative flux at the surface of Mars. The simulation operates over the range 180 - 1100 nm and determines the diffuse component of the surface flux using the delta-Eddington …
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Radiative transfer modeling of thermal infrared emissivity spectra: applications to martian regolith observations
… effects that are clearly present in the Mars Global Surveyor Thermal Emission Spectrometer (MGS-TES) and Mars Exploration Rover mini-TES datasets. The research goals of this dissertation directly involve the extraction of information on two major dust microphysical properties: particle …
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Spatiotemporal Variations in the Radiant Energy Budgets of Mars and Earth
… dissertation investigates the energy budgets of Mars and Earth. First, the first meridional profiles of Mars’ energy budget are generated at seasonal and annual timescales from long-term, multi-instrument measurements returned by Mars Global Surveyor in Martian orbit. Mars, being a dry, dusty …
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Non-LTE diagnostics of the infrared observations of the planetary atmosphere
… non-LTE problems in the atmospheres of Earth and Mars it is demonstrated that ALI approach is far superior to the other algorithms in minimizing computer time and storage and in converging much more rapidly. While ``atmospheric'' groups concentrated on the development of codes suitable for …
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Solar activity variations of the ionospheres of Venus and Mars
… of how the ionospheres of Venus and Mars react to solar activity; namely, how the electron density and ion composition respond to changing solar irradiance in the highly variable region above the ionospheric peak. Using remote sensing observations from Venus Express and Mars Global …
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Vertically Propagating Tides in the Martian Atmosphere
… tides significantly influence the dynamics of Mars' upper atmosphere. The impact of tides on the mean state of the present-day Martian atmosphere is especially large at high altitudes. Certain tides can propagate away from the region of generation in the lower atmosphere and reach the upper …
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Using Crustal Thickness Modeling to study Mars' Crustal and Mantle Structures
Mars has an intriguing topographic and crustal dichotomy that divides the planet into a Northern Hemisphere and a Southern Hemisphere. The biggest question is to understand how this dichotomy was formed and what are the implications to the interior evolution of the planet. This study uses …
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The Origins of Four Paterae of Malea Planum, Mars
… of Hellas Planitia, the largest impact basin on Mars. Four large circular structures on Malea Planum have traditionally been identified as paterae, or low relief, central vent volcanoes (Plescia and Saunders, 1979). A geologic map was constructed and new crater counts made to explore the ages and …