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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 20 of 100 for “"Beaufort"”.
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An astronomical observatory near Beaufort-West
No Abstract.
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Remote sensing of ice dynamics in the Beaufort Sea
… the past several decades, particularly in the Beaufort Sea. The comprehension of the sea ice decline requires an understanding of the annual sea ice retreat during the summer melt season. While there are observations of the seasonal sea ice retreat, there is no accurate data on the evolution of …
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Air-sea CO2 cycling in the southeastern Beaufort Sea
… atmosphere, and ecosystem in the southeastern Beaufort Sea. This thesis examines components of the system that control the air–sea exchange of carbon dioxide. Using eddy covariance measurements, we found enhanced CO2 exchange associated with new ice formation in winter flaw leads. This exchange …
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Remote Sensing of Ice Dynamics in the Beaufort Sea
… the past several decades, particularly in the Beaufort Sea. The comprehension of the sea ice decline requires an understanding of the annual sea ice retreat during the summer melt season. While there are observations of the seasonal sea ice retreat, there is no accurate data on the evolution of …
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Low frequency active sonar performance in the Arctic Beaufort Lens
… environment present throughout much of the Beaufort Sea in the Arctic has a major effect on active acoustic transmissions. This work performs an in depth analysis of how the lower duct impacts the propagation of various active signals used commonly for acoustic communications or active …
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Low frequency active sonar performance in the Arctic Beaufort Lens
… environment present throughout much of the Beaufort Sea in the Arctic has a major effect on active acoustic transmissions. This work performs an in depth analysis of how the lower duct impacts the propagation of various active signals used commonly for acoustic communications or active …
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Reflection seismic investigations of the Canadian Beaufort Sea margin, Arctic Ocean
… and sedimentary architecture of the Canadian Beaufort Sea margin are investigated using a comprehensive grid of two-dimensional seismic reflection data. Three cross-shelf troughs, representing locations of former ice streams draining a 1000 km-long section of the Laurentide Ice Sheet (LIS), …
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Interannual variability of the Pacific Water boundary current in the Beaufort Sea
… Pacific Water boundary current in the Alaskan Beaufort Sea near 152° W. Using velocity and hydrographic data from six year-long deployments during this time period, we examine the interannual variability of the current. It is found that the volume, heat, and freshwater transport have all …
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Hydrological and ecological observations along the eastern Beaufort Sea coast of Alaska
The US Beaufort Sea coast is fringed by barrier islands, which enclose numerous bays and lagoons that provide habitat for migratory fish and waterfowl that are essential to the subsistence and culture of Iñupiat communities of northern Alaska. In the eastern Beaufort, in particular, residents of …
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Interannual variability of the Pacific water boundary current in the Beaufort Sea
… Pacific Water boundary current in the Alaskan Beaufort Sea near 152° W. Using velocity and hydrographic data from six year-long deployments during this time period, we examine the interannual variability of the current. It is found that the volume, heat, and freshwater transport have all …
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Environmental effects of the Beaufort Lens on underwater acoustic communications during Arctic operations
… ice is present. The recent presence of the Beaufort Lens is changing the acoustic propagation paths throughout the Arctic region. Here a network of buoys were employed to communicate with an Autonomous Undersea Vehicle (AUV) while it operated under the ice throughout the Beaufort Lens with …
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The geometry of some Beaufort group sandstones and its relationship to uranium mineralisation
… Diictodon Assemblage Zone west of Beaufort West it is found that three discrete sandstone types called: A) straight channel sandstones, B) low sinuosity channel sandstones and C) transitional sandstones can be identified, in what has previously been considered as high sinuosity …
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Environmental Effects of the Beaufort Lens on Underwater Acoustic Communications during Arctic Operations
… ice is present. The recent presence of the Beaufort Lens is changing the acoustic propagation paths throughout the Arctic region. Here a network of buoys were employed to communicate with an Autonomous Undersea Vehicle (AUV) while it operated under the ice throughout the Beaufort Lens with …
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Cooperation or Conflict in the Arctic? UNCLOS and the Barents and Beaufort Sea Disputes
… I examine the Barents Sea dispute and the Beaufort Sea dispute as case studies to demonstrate the potential for cooperation in the Arctic. I claim that the settlement of the Barents Sea dispute between Norway and Russia gives important lessons on how to solve the Beaufort Sea dispute …
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A vorticity-based analysis of the spatial and temporal characteristics of the Beaufort Anticyclone
Made available in DSpace on 2011-01-21T22:51:36Z (GMT). No. of bitstreams: 2 Gleicher_Kirstin.pdf: 3580007 bytes, checksum: 034248fb612ccbfd7b83d606be1c2407 (MD5) license.txt: 4066 bytes, checksum: d0e8157a3dee2da2612f72dd723bbec5 (MD5)
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The stratification maxima of the seasonally varying Surface layer in the Arctic Ocean’s Beaufort Gyre
The Beaufort Gyre region of the Arctic Ocean is strongly stratified at the base of the wintertime mixed layer, which impedes the vertical transport of heat, energy, and other tracers. Ice-Tethered Profiler observations during 2004-2018 were used to characterize and investigate the seasonal and …
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Ambient acoustics as indicator of environmental change in the Beaufort Sea: experiments & methods for analysis
… noise characteristics due to changes to the Beaufort Sea sound speed profile (SSP) and ice cover. Specifically, the emergence of a warm water intrusion near 70 m depth has altered the historical Arctic SSP while the ice cover has become thinner and younger due to the rise in average global …
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