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 14 of 14 for “"alpine glaciers"”.
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Meltwater temperature in streams draining from Alpine glaciers
… in rivers. In meltwater streams draining from Alpine glaciers, temperatures measured close to glacier termini show strong diurnal variation and paradoxical seasonal variation, being cool when energy availability is greatest. This thesis aims to describe temporal variations of water temperatures …
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Characteristics of lateral-frontal moraine formed at Arctic and Alpine glaciers
… 21st centuries has stimulated the recession of glaciers world-wide. Moraines developed by valley glaciers provide a sedimentary record of their past response to climatic forcing. Despite the use of moraines for understanding the character and behaviour of former glaciers, our understanding of …
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Snowmelt Detection on Alpine Glaciers using Synthetic Aperture Radar Time Series
<p>Hindu Kush Himalayan (HKH) glaciers serve as some of the most sensitive indicators of changes in global climate. These glaciers shape the hydrologic dynamics of river systems supplying freshwater to over 2 billion people throughout Asia and regulate the geochemistry of sensitive aquatic alpine …
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Determining the ability of terrestrial time-lapse microgravity surveying on a glacier to find summer mass balance using gravitational modeling
Mass loss of alpine glaciers presently account for about half of the cryospheric contribution to the global sea-level rise. Mass balance of alpine glaciers has predominantly been monitored by; (1) glaciological and hydrological methods, and (2) satellite gravimetric methods using data from NASA’s …
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Centennial-scale reconstructions of mountain glacier fluctuations during the Holocene, West Greenland
Mountain glaciers and ice caps are an integral part of the Earth’s climate system yet the Holocene history of mountain glacier variability remains poorly known, particularly in remote regions of the Arctic. In Greenland, for example, continuous records of Holocene alpine glacier change are …
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The hydrology of debris-covered glaciers
… of glacier-hydrology have focused on clean Alpine glaciers, and recently ice sheet outlet glaciers, but there are few studies on debris-covered glaciers. It is known debris affects ablation rates, and that debris-covered glaciers evolve differently to their debris-free counterparts, but how …
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The effects of temperature and moisture on alpine microbial processes across a gradient of soil development
Alpine ecosystems are being transformed by global change. Climate change and atmospheric nitrogen deposition are exposing soils to novel temperature regimes, melting alpine glaciers, altering precipitation patterns, and directly introducing bioavailable nutrients. Because microbial communities are …
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Studies of Seismic Sources in Antarctica Using an Extensive Deployment of Broadband Seismographs
… Transantarctic Mountains (associated with active alpine glaciers), and icequake events at calving glaciers along the coastline. In West Antarctica I find tectonic earthquakes, icequakes, and tectonic events related to volcanism. I do not find evidence of tectonic events in West Antarctica that …
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Meltwater stream temperature responses to air temperature and characteristics
… temperature in meltwater rivers draining from Alpine Glaciers. Hood et al, (2013) suggested that percentage glacierisation was the determining influence on water temperature in streams draining large glacierisied basins in Alaska. Percentage glacierisation however is an unusual basin …
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Suspended sediment concentration in Alpine glacial meltwaters
… concentration in meltwaters draining from Alpine glaciers vary considerably both diurnally and seasonally. In order to characterise sediment variability, sub-daily close-interval sampling measurements of suspended sediment concentrations are usually undertaken. In close-interval sampling, …
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Soil and permafrost distribution, soil characterisation and soil vulnerability to human foot trampling, Wright Valley, Antarctica
… Lower Wright Glacier, Upper Wright Glacier and alpine glaciers, contain massive ice within 100 cm of the soil surface and are classified as Glacic Haplorthels or Glacic Haploturbels where there is field evidence of cryoturbation. As a generalization, at either end of the valley, soil moisture …
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SURFACE WATER – GROUNDWATER INTERACTIONS IN A PROGLACIAL ALPINE CATCHMENT: Applications of Heat Tracing, Modeling, and Remote Sensing Methods
… currently depend on meltwater from snowpack or glaciers during dry periods. One place whose water stability could be heavily impacted by the loss of meltwater resources is Peru. During the dry, arid months of May through September, the region to the west of the Peruvian Andes relies on stream …
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Temperature-index modelling of runoff from adeclining Alpine glacier
… meltwater fromGornergletscher and its tributary glaciers, which contribute a large proportion of therunoff from this highly-glacierised basin. As the mass of ice has declined, recessionof many smaller tributary glaciers has resulted in their separation from the trunkGornergletscher. Declining …
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The interaction of climate, tectonics, and topography in the Olympic Mountains of Washington State: the influence of erosion on tectonic steady-state and the synthesis of the alpine glacial history
… State is explored to determine the influence of glaciers on spatially variable erosion and rock uplift rates. As glaciers have long been present on the peninsula, could glacial erosion explain the observed pattern of rock uplift? A numerical model of glacial flow, ICE Cascade, is used to …