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Résultats de la recherche (46 résultats)

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  • Active layer ; Aeolian features ; Dating ; England ; Grain size distribution ; Heavy minerals ; Kent ; Micromorphology ; Palaeo-environment ; Patterned ground ; Periglacial features ; Permafrost ; Quaternary ; Stratigraphy ; United Kingdom
  • 2003
  • The AA. use wind speed measurements from 1996-2001 at 70 m above ground (a typical wind turbine height) to investigate interannual variability in wind speed and wind power at 5 sites in Minnesota, and to determine whether the sites have similar
  • patterns of variability. They use the standard deviation (computed from mean hourly data) as a measure of within-year variability because squared differences emphasize the effects of the long tails of the wind speed and wind power distributions.
  • 2003
  • Climate change and ground water
  • This article summarizes the theory of climate change and the relationship of climate-change forcing to hydrologic and aquifer processes. It focuses on regional aquifer systems and on the methods to link large-scale climate-change processes to ground
  • -water recharge and to simulate ground-water flow and solute transport in a warmer, 2xCO2 climate. In addition, it outlines the development of a methodology to quantify the effects of climate change and of changes in ground-water use by population growth
  • 2003
  • Massive ground ice body of glacial origin at Yugorski Peninsula, Arctic Russia
  • Arctic Region ; Ground ice ; Ice ; Oxygen 18 ; Palaeogeography ; Permafrost ; Quaternary ; Russia ; Stratigraphy
  • A massive ground ice body at Cape Shpindler on Yugorski Peninsula, southern Kara Sea coast, Russia, was studied with regard to large-scale internal structures, its stratigraphic context and contacts to surrounding sediments, in order to highlight
  • 2003
  • Imaging periglacial conditions with ground-penetrating radar
  • Canada ; Geophysics ; Ground ice ; Northwest Territories ; Periglacial features ; Permafrost ; Radar ; Research technique ; Soil temperature ; Soil water ; Stratigraphy
  • Three important parameters that need to be quantified for many permafrost studies are the location of ice in the ground, the position of thermal interfaces, and spatial variations of the water content in the active layer. The data from over 100
  • investigations in permafrost regions demonstrate that ground-penetrating radar (GPR) offers an effective way to measure these parameters at a scale appropriate for many process and geotechnical studies. The AA. discuss the fundamental properties of GPR and how
  • 2003
  • Intensive cooling through an open-work blocky layer : ground temperature monitoring in the Swiss Alps
  • Alps (The) ; Ground survey ; Mountain ; Periglacial features ; Permafrost ; Rock glacier ; Slope gradient ; Snow cover ; Soil temperature ; Switzerland
  • This paper presents the results of two-year monitoring of ground temperatures on two kinds of alpine ground surfaces, a rock glacier and a soil slope in the Upper Engadin, Swiss Alps. The monitoring sites lie close to the regional lower limit
  • 2003
  • Use of Ground Penetrating Radar (GPR) soundings for investigating internal structures in rock glaciers. Examples from Prins Karls Forland, Svalbard.
  • Arctique ; Glacier ; Glacier rocheux ; Ground Penetrating Radar ; Méthodologie ; Norvège ; Prins Karls Forland ; Radar ; Structure géologique ; Svalbard ; Technique de recherche
  • Les AA. présentent les quatre profils de glaciers rocheux obtenus par la méthode du GPR (Ground Penetrating Radar) au Svalbard à Prins Karls Forland (Norvège). Ils débattent des possibilités offertes par cette méthode pour étudier la structure
  • 2003
  • Ground ice and soluble cations in near-surface permafrost, Inuvik, Northwest Territories, Canada
  • Active layer ; Canada ; Geochemistry ; Grain size distribution ; Ground ice ; Northwest Territories ; Organic materials ; Periglacial features ; Permafrost ; Soil moisture
  • 2003
  • Contrails of globalization and the view from the ground : an essay on isolation in East-Central Siberia
  • 2003
  • Investigating mountain permafrost distribution by ground temperature measurements in the Tateyama mountains, the northern japanese alps, central Japan.
  • 2003
  • Authors investigate the vertical and horizontal movements of ground water for a longer time period in the Tokaj wine growing area (NE-Hungary). This knowledge may help in tracing the way of pollutants in the ground water, and many contribute
  • 2003
  • A grounded approach to identifying national competitive advantage : a preliminary exploration
  • 2003
  • A model for regional-scale estimation of temporal and spatial variability of active layer thickness and mean annual ground temperatures
  • 2003
  • Chemical erosion ; Cold area ; Geophysics ; Ground freezing ; Lapland ; Periglacial features ; Regolith ; Seasonal variation ; Spatial variation ; Sweden ; Weathering
  • describe regolith thickness and ground frost conditions at the time of measurement.
  • 2003
  • The use of tomographic geoelectrical measurements for the detection of ground ice occurrences in mountainous regions is evaluated. Because isolated ground ice occurences in a warming climate may be subject to rapid thawing, they present a future
  • 2003
  • Losing ground ? Tuvalu, the greenhouse effect and the garbage can
  • 2003
  • on regional development, but it has also its own space. Drawing on European experiences, the book intends to provide conceptual and empirical ground for further in-depth analysis of the relation between finance and innovation. - (IFL)
  • 2003
  • Arctic Region ; Cold area ; Comparative study ; Creep ; Geodesy ; Global Positioning System ; Ground survey ; Permafrost ; Rock glacier ; Svalbard
  • 2003
  • The ponds on the Seward Peninsula were examined to determine if recent changes in climate have impacted their development and degradation. These investigations included field studies through coring and thermal analyses, ground penetrating radar (GPR
  • 2003
  • remnants, presumably due to the degradation of significant ground ice and permafrost. In this study, the DeKalb mounds are presumed to have developed from an intricate set of glacial dead-ice and mass movement processes. This reinterpretation reflects
  • 2003