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Articles 1 - 2 of 2
Full-Text Articles in Earth Sciences
Glacial Stratigraphy Of The Ridge River Area, Northern Ontario: Refining Wisconsinan Glacial History And Evidence For Laurentide Ice Streaming, Maurice Nguyen
Glacial Stratigraphy Of The Ridge River Area, Northern Ontario: Refining Wisconsinan Glacial History And Evidence For Laurentide Ice Streaming, Maurice Nguyen
Electronic Thesis and Dissertation Repository
Detailed field studies of Quaternary sediments were undertaken during the summer of 2012 in the remote Ridge River area of the Hudson Bay Lowland. Grain size, carbonate, stone lithologic analyses and stratigraphic relations of 31 sites were compiled and revealed two main till units likely deposited by the advance and retreat of the Laurentide Ice Sheet. Based grain size, carbonate, and lithologic data the tills cannot be distinguished and the abundance of distantly transported stones suggests rapid flux of glacial debris from Quebec over the Hudson Platform to the study area. Evidence from stone fabrics, striae, and glaciotectonic structures in …
Automated Image Interpretation For Science Autonomy In Robotic Planetary Exploration, Raymond Francis
Automated Image Interpretation For Science Autonomy In Robotic Planetary Exploration, Raymond Francis
Electronic Thesis and Dissertation Repository
Advances in the capabilities of robotic planetary exploration missions have increased the wealth of scientific data they produce, presenting challenges for mission science and operations imposed by the limits of interplanetary radio communications. These data budget pressures can be relieved by increased robotic autonomy, both for onboard operations tasks and for decision- making in response to science data.
This thesis presents new techniques in automated image interpretation for natural scenes of relevance to planetary science and exploration, and elaborates autonomy scenarios under which they could be used to extend the reach and performance of exploration missions on planetary surfaces.
Two …