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Résultats de la recherche (173 résultats)

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  • Glacial geomorphology : towards a convergence of glaciology and geomorphology
  • Special Issue : The future of geomorphology
  • This review presents a perspective on recent trends in glacial geomorphological research, and in particular the increasing engagement with investigating glaciation over larger and longer timescales facilitated by advances in remote sensing
  • and numerical modelling. The AA. focus on the example of West Antarctica. They discuss 2 examples of the ways in which numerical models offer significant potential for testing ‘glacial geomorphological’ hypotheses of continental glacial landscape evolution
  • and smaller-scale landform development. They close by identifying some future challenges in glacial geomorphology.
  • 2010
  • Geomorphology and Earth system science
  • Special Issue : The future of geomorphology
  • Atmospheric circulation ; Bibliography ; Biogeochemical cycle ; Climate ; Earth surface processes ; Geomorphology ; Geosystem ; Land atmosphere interaction ; Model ; Tectonics ; The 2000's ; Topography
  • The aim of this review is to introduce some key examples showing the role of Earth surface processes, the traditional subject of geomorphology, within the interacting Earth system. The paper considers three examples of environmental systems in which
  • geomorphology plays a key role: (1) links between topography, tectonics, and atmospheric circulation; (2) links between geomorphic processes and biogeochemical cycles; and (3) links between biological processes and the Earth’s surface. In conclusion, key
  • 2010
  • Periglacial geomorphological evolution of the Fontainebleau Massif (France)
  • Aeolian features ; Biodiversity ; Dune ; France ; Geomorphology ; Ile-de-France ; Inheritated geomorphological features ; Periglacial features ; Plateau ; Sand ; Sandstone ; Seine-et-Marne ; Topography
  • 2010
  • The trajectory of geomorphology
  • Special Issue : The future of geomorphology
  • Applied geomorphology ; Dating ; Earth surface processes ; Epistemology ; Geomorphology ; Geosystem ; History of sciences ; Human impact ; Nineteenth Century ; Remote sensing ; Twentieth Century
  • Modern geomorphology was founded in the nineteenth century as an exercise of historical interpretation of landscapes. After the mid-twentieth century it dominantly became a quest to understand the processes by which landscapes are modified
  • . The period also saw the emergence of an applied geomorphology. Toward the end of the twentieth century the subject was transformed by improved technologies for remote sensing and surveying of Earth’s surface, the advent of personal computation and of large
  • -scale computation, and important developments of absolute dating techniques. These technical innovations in turn promoted recognition of geomorphology as a ‘system science’ and facilitated the reintegration of tectonics into geomorphology. Finally
  • 2010
  • Geomorphological environment of boulders and grain-size analysis of gravel sheets in the Southern Börzsöny, Hungary
  • Erratic boulder ; Geomorphology ; Grain size distribution ; Gravel ; Hungary ; Komáron-Esztergom ; Lithology ; Mountain ; Slope deposit
  • gravel sheet locations of the mountains, the geomorphological and grain-size analyses have resulted in some important conclusions. The geomorphology of the two areas is very similar to each other. The correlational statistical analysis of grain size shows
  • 2010
  • Tectonics and geomorphology
  • Special Issue : The future of geomorphology
  • Bibliography ; Digital elevation model ; Earth surface processes ; Erosion rate ; Fluvial processes ; Geological structure ; Geomorphology ; Glacial features ; Landslide ; Numerical model ; Sediment budget ; Slope ; Tectonics ; The 2000's
  • Most tectonic geomorphology research is concerned with rivers, but glaciers, debris flows and hillslope processes also play a key role in hypotheses linking climate to tectonics, via surface processes, while submarine geomorphology has barely been
  • into geomorphic process ‘laws’, and demonstrating key tectonic geomorphology hypotheses. The review concludes with thoughts on future research directions.
  • 2010
  • Hydrological and geomorphological significance of rock glaciers in the dry Andes, Chile (27°-33°S)
  • The latitudinal-altitudinal distribution of rock glaciers in the dry Chilean Andes between 27° and 33°S was analysed and their hydrological and geomorphological significance evaluated. Statistical estimation techniques were used based on digital
  • glacier volumes, and geomorphological significance.
  • 2010
  • Hydraulic and geomorphological effects of run-of-river dams
  • As, in part related to public-safety concerns, the number of removals of run-of-river dams increases, it is crucial to understand the effects that these structures have on river geomorphology and sedimentology. This paper reviews current knowledge
  • related to the influence of run-of-river dams on the hydraulics and geomorphology of rivers and suggests types of studies that need to be undertaken to address gaps in current knowledge : numerical modeling and experimental investigations to determine
  • 2010
  • Applied ecology ; Geomorphology ; Györ-Sopron ; Hungary ; Hydraulic works ; Stream
  • The aim of the paper is to describe the geomorphologic situation in the environment of the red sludge reservoirs at Ajka and to make a proposal for the regulation of the hydrographical system over the surrounding territories. - (AM)
  • 2010
  • Geoheritage assessment based on large-scale geomorphological mapping : contributes from a Portuguese limestone massif example
  • Estremadura (Portugal) ; Geodiversity ; Geomorphological mapping ; Geomorphology ; Geomorphosite ; Inheritated geomorphological features ; Karst ; Limestone ; Mountain ; Patrimony ; Portugal ; Quantitative analysis ; Scale ; Site preservation
  • 2010
  • Africa ; Cenozoic ; Cretaceous ; Cuesta ; Niger ; Palaeogeography ; Regional geology ; Sahara ; Sedimentary basin ; Stratigraphy ; Structural geomorphology ; Tectonics
  • In this paper reflections on the development of scarpfoot depressions are presented from a geomorphologic-geological, and sedimentological point of view. They are intended to clarify whether post-sedimentary relief development in Central Sahara
  • started pre-Upper Cretaceous or only in Tertiary, and further whether the geomorphological forms in the area of examination are to be classified as belonging mainly to either a (semi)humid-tropical type of relief or a semi-arid type in terms
  • 2010
  • Dyke ; Etna ; Fault ; Geomorphological map ; Geomorphology ; Italy ; Sicilia ; Structural geomorphology ; Tectonics ; Volcano
  • 2010
  • Concept ; Europeans ; Geomorphology ; Human impact ; Landscape ; Landscape dynamics ; Model ; Rwanda ; Sustainable development
  • The dissertation deals with geomorphologic analyses of the rwandic landscape. The theoretic findings are able with the help of the geomorphologic analyses empirical to confirm. The developed model differ in two big phases of landscape development
  • 2010
  • Area of old hard rocks ; Bohemia ; Czech Republic ; Fluvial terrace ; Geomorphology ; Morphostratigraphy ; Quaternary ; Stream
  • The results of geomorphological research into the Sázava river terraces are presented. This terrace system is characteristic by its variable structure which is conditioned by specific hydrodynamic processes that existed during the late Cenozoic
  • 2010
  • Cliff ; Geomorphogenesis ; Geomorphology ; Landscape unit ; Lithology ; Microrelief ; Morphometry ; Poland ; Rock
  • locations of rocks and rock formations, their morphometry and shape, and the microrelief of rock faces. This leads on to a discussion of the Gorge’s overall relief, as well as an indication as to the main geomorphological processes shaping it. – (BJ)
  • 2010
  • The geomorphology of the Coastal Platform in the southern Cape
  • 2010
  • Soil erosion assessment using geomorphological remote sensing techniques : an example from southern Italy
  • The aim of this study is to assess of the distribution and map the geomorphological effects of soil erosion at the basin scale identifying newly-formed erosional landsurfaces (NeFELs), by means of an integration of Landsat ETM 7+ remotely sensed
  • data and field-surveyed geomorphological data. The study was carried out in a typical Mediterranean area located in southern Italy. The study area was first characterized from a lithological, pedological, land-use and morpho-topographic point of view
  • 2010
  • Micro-geomorphology determines community structure of biological soil crusts at small scales
  • This paper considers the contribution of micro-geomorphology to biodiversity in the extreme arid desert systems. The AA. tested the hypothesis that micro-geomorphological features determine the spatial distribution of biological soil crusts (BSCs
  • 2010
  • Dynamic interactions of life and its landscape : feedbacks at the interface of geomorphology and ecology
  • Adaptation ; Biodiversity ; Co-evolution ; Ecology ; Environmental management ; Geomorphology ; Human impact ; Impact ; Inter-disciplinary approach ; Landscape dynamics ; Model ; Population dynamics ; Research ; Sustainable development
  • and indirect actions). Also outlined are the state of the art in analytical, experimental and modelling techniques in ecological and geomorphological research, and novel new research avenues that combine these techniques are suggested.
  • 2010
  • Asian part of Russia ; Continental shelf ; Geomorphology ; Khabarovsk
  • 2010