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 32 for “"Barents Sea"”.
-
Nitrogen uptake and phytoplankton productivity in the changing Barents Sea
… decades, with a significant reduction<br/>in sea ice extent and duration as a result. These sea ice changes and the resultant<br/>changes in ocean mixing are affecting nutrient supply, uptake and cycling and will<br/>have large-scale consequences for the distribution and magnitude of primary …
-
The Impact of Wind-Driven Mixing in the Barents Sea
… is changing rapidly, and the characteristic sea ice cover that defines<br/>the Arctic Ocean is retreating rapidly. Despite extensive study and<br/>investigation of many parameters and processes, it remains uncertain how a<br/>future Arctic will respond to reduction of sea ice. The loss of …
-
Making Resource Futures: Petroleum and Performance by the Norwegian Barents Sea
… in the larger region. It examines how oil in the Barents region is both disputed and celebrated, and how this resource, which has been central to the Norwegian economy and society for the last 50 years, is understood from northern perspectives. In particular, it explores what forms consent and …
-
Water mass distribution and Polar Front structure in the Southwestern Barents Sea
The water mass distribution in the southwestern Barents Sea, the thermohaline structure of the western Barents Sea Polar Front, and the formation of local water masses are described based on an analysis of historical hydrographic data and a recent process-oriented field experiment. This study …
-
Reconstruction of recent and palaeo sea ice conditions in the Barents Sea
… isoprenoid alkene derived from certain Arctic sea ice diatoms that, when detected in marine sediments, has been used as a proxy for past Arctic sea ice over the last decade. In the current study, the structure of this biomarker was determined following large-scale extraction from sediment …
-
Water mass distribution and Polar Front structure in the Southwestern Barents Sea
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, and Woods Hole Oceanographic Institution, 1996.
-
Prediction of the beamformed acoustic ray arrival structure for the 1992 Barents Sea coastal tomography test
… propagation problem associated with the 1992 Barents Sea Polar Front Experiment Tomography Test, the transmission of a 224 Hz pulse signal from a near bottom sound source to a vertical hydrophone array was simulated based on three-dimensional ray theory. based on three- dimensional ray theory. …
-
Modern sedimentation in the Northern Barents Sea : input, dipersal and deposition of suspended sediments from glacial meltwater
… environment of the northern epicontinental Barents Sea varies from proximal to distal glaciomarine. The regional surface sediment distribution is controlled by erosion of shallow banks of the Pleistocene glaciated surface, with the fine material deposited in the deep basins. Near-bottom …
-
Acoustic travel time perturbations due to an internal tide and internal wave field in the Barents Sea
… an internal tide and internal mode field in the Barents Sea are examined. A formalism for the travel time perturbation due to a change in sound speed is presented. Internal tide and internal wave amplitude spectra are calculated from Brancker temperature loggers which were deployed on moorings in …
-
Modern sedimentation in the Northern Barents Sea : input, dipersal and deposition of suspended sediments from glacial meltwater
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric and Planetary Sciences, 1985.
-
Development of biomarker-based proxy methods for reconstructing the late Quaternary sea ice history in the Barents Sea
… branched isoprenoid (HBI) termed IP25 to paleo-sea ice reconstruction has confirmed its utility as a qualitative seasonal sea ice proxy. Combination of IP25 and a pelagic biomarker into the Phytoplankton-IP25 index (PIP25) has facilitated more detailed, semi-quantitative descriptions of sea ice …
-
Late Paleozoic basin analysis of the Loppa High and Finnmark Platform in the Norwegian Barents Sea : integration of seismic attributes and seismic sequence stratigraphy
… and the Finnmark platform in the Norwegian Barents Sea (southwest Barents Sea) were investigated using 2D/3D seismic datasets combined with well and core data. These sedimentary successions represent a case of mixed siliciclastic-carbonates depositional systems, which formed during the …
-
Changes in shelf waters due to air-sea fluxes and their influence on the Arctic Ocean circulation as simulated in the OCCAM global ocean model
… that buoyancy fluxes that occur due to air-sea exchanges on the continental shelves are an important driving force for the boundary current in the model.<br/>The formation area of the circumpolar boundary current is found in the Barents Sea, where there is a high pressure area associated …
-
Investigating the importance of different sources of organic matter as food for the benthos on three Arctic shelves
… sources. Three Arctic shelves were studied: the Barents Sea, the Northeast<br/>Greenland Shelf, and the Beaufort Sea Shelf, representing the often-described inflow,<br/>outflow, and interior shelves, respectively. Highly branched isoprenoids – lipid biomarkers<br/>produced with distinct …
-
An investigation of metal contaminants in sediments of Arctic Svalbard: Inferences for sources and transport pathways
… sedimentary environment. The aim of this research was to investigate further heavy metal contamination, specifically within the sediments of the Svalbard region, and the Barents Sea area, within the Arctic. Ten sediment cores were taken for analysis from three main fieldwork excursions. The …
-
Cooperation or Conflict in the Arctic? UNCLOS and the Barents and Beaufort Sea Disputes
… conflict dilemma in the Arctic. 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 …
-
Oil spills in cold climates with special reference to the transportation and exploration of hydrocarbons in the Kara Sea
… considering the oil exploration in the Kara Sea have been developed. In this work the fate and behaviour of the oil in ice, environmental conditions in the Kara Sea and the present and past exploration of the region has been summarised. Oil spilled under ice will be encapsulated within the …
-
Analysis of water masses distribution and circulation in the White Sea, Russia
The White Sea is a semi-enclosed sea, which consists of several bays and estuaries connected to the open ocean through the narrow and shallow Gorlo Strait. Several studies have been carried out in the region during the last decade in order to investigate the potential threat of anthropogenic …
-
Development of biomarker-based proxies for paleo sea-ice reconstructions
The analysis of the sea-ice diatom biomarker IP25 (a mono-unsaturated Highly Branched Isoprenoid (HBI) alkene) in Arctic marine sediments has previously been shown to provide a useful qualitative proxy measure for the past spring sea-ice occurrence. In the Southern Ocean the occurrence and variable …
Page 1 of 2