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.
Results
Showing 1 to 20 of 55 for “"Glaciology"”.
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Iceberg-keel ploughmarks on the seafloor of Antarctic continental shelves and the North Falkland Basin: implications for palaeo-glaciology
… iceberg-keel ploughmarks as indicators of palaeo-glaciology and palaeo-oceanography at the time of formation is emphasised.
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COMMUNITY IMPACTS TO AND FROM GLACIOLOGY: ANALYZING THE EFFECTS OF CLIMATE CHANGE ON HIMALAYAN MOUNTAIN COMMUNITIES WHILE BUILDING THE NEXT GENERATION OF GEOSCIENTISTS
Human activity has undeniably caused the global temperature to rise, and with that rise comes variability and volatility to the climate system. As we face the myriad of environmental alterations that climate change will challenge humanity with, it is becoming increasingly important to turn our …
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Prediction under uncertainty : from models for marine-terminating glaciers to Bayesian computation
… thesis presents complementary developments in glaciology and in Bayesian computation.
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Antarctica: A Geography of the Sacred
… architecture. Through a coincidence of geology, glaciology and plate tectonics, the topography of Antarctica echoes these designs almost perfectly - the coastal regions and southern ocean corresponding to the picturesque outer ring or structure, the minimalist ice shelves and Polar Plateau …
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Geophysical investigations of icebergs in Antarctica
… are outlined. Some relevant research in glaciology, physics and mechanics of ice, oceanography and other related topics is summarised. The collected data (over a period of one year) are divided in three sets:- the dynamical behaviour of the iceberg; thermodynamical data; and mechanical …
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Climate, uncertainty, and the slippery measurement of Antarctic ice
… increasing centrality of ice sheet modelling to glaciology, the drive to extend time series into the pre-satellite past led scientists to excavate earlier research in search of older data points. I argue that scientists necessarily practice a socio-scientific "data archaeology" in the re-use of …
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Remote Sensing Studies of Svalbard Glaciers
… level. Third, several aspects of the regional glaciology of the Nordaustlandet ice caps are examined. Digital analysis of ice cap surface radiance characteristics provides data on snow line position and mass balance. The spatial and temporal pattern of detector saturation in each band of the …
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Glacier surging in the West Kunlun Shan
… in terms of understanding more about regional glaciology and climate, but also in better understanding surge behaviour as a whole.
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Quantifying Glacier-Derived Summer Runoff in Northwest Montana
Glacier National Park, located in northwest Montana contains the second largest concentration of glaciers in the U.S. Rocky Mountains. However, total glacier-covered area has shrunk by almost 30% over the past 50 years. This has important implications for local glacier-fed streams, especially …
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Quantifying Glacier-Derived Summer Runoff in Northwest Montana
Glacier National Park, located in northwest Montana contains the second largest concentration of glaciers in the U.S. Rocky Mountains. However, total glacier-covered area has shrunk by almost 30% over the past 50 years. This has important implications for local glacier-fed streams, especially …
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The flow and fracture of Antarctic Ice Shelves
This thesis explores the deformation of glacier ice, with an aim of deriving insights into its flow and fracture through satellite remote sensing methods. Glaciers deform through the driving force of their own weight and display dramatic responses to both external forcing, such as changes in …
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Hydrological and biogeochemical cycling along the Greenland ice sheet margin
Global warming has led to a significant increase in Greenland ice sheet (GrIS) melt and runoff since 1990, resulting in escalated export of fresh water and associated sediment to the surrounding North Atlantic and Arctic Oceans. Similar to alpine glacial systems, surface meltwater on ice sheet …
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150 Years of Light Absorbing Impurity Deposition on South Cascade Glacier, Washington State USA
Glaciers and seasonal snowpack in Washington State have undergone significant decline over the past 50 years. While warming global temperatures are widely recognized as the cause of glacial decline, the deposition of black carbon (BC) can also contribute to increased melt. BC, commonly referred to …
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Modelling the impact of surface melt on the hydrology and dynamics of the Greenland Ice Sheet
Increasing surface runoff from the Greenland Ice Sheet due to a warming climate not only accelerates ice mass loss by altering surface mass balance, but may also lead to increased dynamic losses. This is because surface melt draining to the bed can reduce ice-bed coupling, leading to faster ice …
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Investigating fast flow of the Greenland Ice Sheet
The dynamic response of a faster-flowing Greenland Ice Sheet to climate change is modulated by feedbacks between ice flow and surface meltwater delivery to the basal environment. While supraglacial melt processes have been thoroughly examined and are well constrained, the response of the englacial …
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Controls on terminus change of marine terminating glaciers in Greenland over the last 40+ years
Since the 1980s, the Greenland ice sheet has been losing ice mass at an increased rate. Our current understanding of the complex physical processes that control dynamic mass loss is incomplete and, therefore, leads to a wide range of possible future contributions to sea level. Ice dynamics, or …
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Acoustical characterization of glacierized fjords
The rapidly changing cryosphere motivates a better understanding of the physical processes governing ice-ocean boundaries. These processes are no more pronounced than in glacierized fjords where massive glaciers meet the ocean. This underwater acoustic environment is significantly louder than other …
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Micromorphology of Last Glacial Maximum Grounding line sediments around the Antarctic Peninsula
Sediments recovered from seven Last Glacial Maximum grounding lines sites, around the Antarctic Peninsula, were analyzed using micromorphology. This is the first evidence that grounding line sediments from around the Antarctic Peninsula have complex deformational histories and subglacial origins. …
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Disconnection of outlet glaciers and vulnerability of Harding Icefield, Southcentral Alaska
The Harding Icefield on Kenai Peninsula, southcentral Alaska, is the largest icefield in the United States and a key freshwater resource in southern Alaskan watersheds. Using Landsat imagery from 1986 to 2024 and a red/SWIR band-ratio mapping method with manual correction, this research created the …
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Reconstructing the Surge History and Dynamics of Fisher Glacier, Yukon, 1948-2022
Glacier surges are periods of dynamic instabilities which result in semi-regular alternating periods of slow flow, termed the quiescent phase, and fast flow, termed the active phase. This study uses remotely sensed imagery, digital elevation models, glacier velocity datasets, and in situ oblique …
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