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 9 of 9 for “"HiRISE"”.
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Investigation of Small Scale (<50m) Surface Features on Mars' North Polar Cap Using Data from HiRISE
… High Resolution Imaging Scientific Experiment (HiRISE), features less than 50 m over the entirety of the NPLD are characterized and mapped. A 2D Fast Fourier Transform is used to infer general spacing and orientation tendencies of surface patterns. Whether these features can be formed by …
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Investigations of the Martian Mid-Latitudes: Implications for Ground Ice
… the High Resolution Imaging Science Experiment (HiRISE) camera. I discuss the theory of sublimation by free convection and describe a model that improves on the standard version used in the Mars literature. This model shows some differences from experimental data, but this appears to be because …
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Using remote sensing to track complex sinuous ripple migration on a barchan dune in Herschel Crater, Mars
… deemed indurated. However, since the release of HiRISE (2023) satellite images it is clear that these dunes are in fact very much the opposite. These dunes were actively migrating and presented some unique superimposed ripples. With this, we set out to measure the migration of both the …
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Automatic Classification and Segmentation of Patterned Martian Ground Using Deep Learning Techniques
… of Martian polygonally patterned ground from HiRISE images. Three tasks are considered, a binary classification to identify images containing polygons, multiclass classification distinguishing different polygon types and semantic segmentation of polygon regions. Due to time and resource …
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Constraining the Hydration State of the Phyllosilicate Deposits of Eastern Valles Marineris Mars
… of SHARAD radar. In addition, we utilize HiRISE and CRISM data to draw correlations between the clays and the radar observations. Our study finds that a catastrophic flooding event is a sufficient and plausible explanation for this contradiction. Leftover pooled water from the flood was …
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Judging a planet by its cover : insights into lunar crustal structure and Martian climate history from surface features
… using images of the PLDs from the MOC and HiRISE instruments aboard the Mars Global Surveyor (MGS) and Mars Reconnaissance Orbiter (MRO) to constrain their ages and deposition rates.
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Distal Flow Deposits: Exploring Impact Related Surface Flow Morphologies Beyond the Layered Ejecta Blankets of Mars
… in diameter (21 high confidence and 20 awaiting HiRISE verification images), DFDs are shown to exist around well-preserved craters throughout the mid-latitude and equatorial regions of Mars (35.7ºS to 25.11ºN). Geomorphological and morphometric analysis suggests DFDs form as an extended …
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The Water Cycle at the Phoenix Landing Site, Mars
… High-Resolution Imaging Science Experiment: HiRISE), the Phoenix Lander Surface Stereo Imager: SSI), and employing non-linear spectral mixing models. The landing site is covered for part of the year by the seasonal ice cap, a layer of CO2 and H2O ice that is deposited in mid-fall and …
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Impact Melt-Bearing Deposits Around Martian Craters
In this work, we investigate impact melt emplacement around Martian craters. We compare our results to melt emplacement processes found on Venus, the Moon, and Mercury. We tentatively find Martian melt emplacement more closely resembles Venusian emplacement, rather than lunar emplacement. This …