inscription
PORTAIL D'INFORMATION GÉOGRAPHIQUE

Résultats de la recherche (341 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • The Aberystwyth symposium, 1975 (suivi de) Activity of working group of the periglacial committee of the I.G.U.
  • Seismicity and submarine Volcanic activity in French Polynesia
  • Models of fluvial activity on Mars in Models in geomorphology.
  • Eddy activity propagation, mean flow acceleration and Siberian blocking
  • Aktieve hellingserosie in België. (Erosion active de versants en Belgique)
  • Patterns of quaternary aggradational and dissectional landform development in the Almeria region, southeast Spain : a dry region, tectonically active landscape
  • Mise en évidence de deux facteurs principaux pour l'évolution du paysage quaternaire dans la région de Almeria : la tectonique et le climat aride. La tectonique active a favorisé la formation de Badlands, de glacis et de cônes d'alluvion. Le climat
  • Reconnaissance of the dynamic characteristics of an active Strzelecki Desert longitudinal dune, southcentral Australia
  • Etude de la sédimentation et de l'érosion sur une dune longitudinale active du désert de Strzelecki. Des profils topographiques ont été levés à différents moments pour déceler la migration latérale de la dune. Utilisation de la cartographie de la
  • Hydrologicka analogie a jeji vyuziti ke kvantifikaci zmen hydrologického rezimu rek zpusobenych cinnosti cloveka. (Hydrological analogy and its utilization for the quantification of changes of the regimes of rivers caused by human activity)
  • The utilization of hydrological analogy reprezents an indirect way for solution of some problems caused by human activities, from a large area of interest. Empirical and experimental methods, correlation methods, water balance, statistical analysis
  • Geomorphology of the central Southern Alps, New Zealand : the interaction of plate collision and atmospheric circulation in The geomorphology of plate boundaries and active continental margins.
  • The variation in the character of the landscape across the Southern Alps reflects the changes in uplift and erosion rates, elevation, and the degree of preservation of relict landforms. These result from the interaction of active mountain building
  • The northernmost part of Scandinavia, the Varanger peninsula, belongs to Subarctic zone. It is possible to observe there the occurrence of both active and inactive periglacial phenomena at the some height above sea level. The area is picked out
  • as being transitional between the active periglacial zone of the Arctic, and the fossilised periglacial zone of Central Europe. In comparison with Spitsbergen, Varanger only exhibits half the active high Arctic periglacial processes.
  • Radio-transmitters were fixed to the backs of 20 hedgehogs who were followed nightly for four to six week periods year round, except in winter, in order to determine their activity patterns. Sleep was shown to account annually for 87 % of the time
  • . Feeding takes place during the first half of the night. From midnight to daybreak, other important seasonal activities, such as social contacts, exploration and nest-building were recorded. The most important biotic and abiotic factors promoting activity
  • Soil erosion is an active geomorphic process and requires a close attention of geomorphologists who investigate into present-day relief-forming processes and into the history of the relief's evolution. Spatial differences and changes in time can
  • be traces in the erosion and deposition on slopes both unchanged and changed by the man's activity. Morphological structure of the slope's surface, form, quantity and character of elementary units the slope consists of are also importance. Soil erosion
  • are restricted to dry steppes and semideserts. Human activity enlarged the scope of the process which became now azonal. In the course of the Pleistocene there were some epochs of active soil erosion and deluvial deposition similar to the present - man-induced
  • The active layer and climate in Coastal and inland periglacial processes. Canadian Arctic.
  • Couche active ; Géographie physique ; Géomorphologie climatique ; Permafrost ; Périglaciaire ; Sol ; Variation saisonnière
  • Une des caractéristiques essentielles de la couche active est la modification de la vitesse de surrection morphogénique au cours de l'été. Elle décroît avec le temps. Ce changement est désigné ici comme la loi de la réduction conséquente et il est
  • Altération cryogénique| relations entre la couche active et le permafrost.
  • Episodic Aleutian Ridge igneous activity: Implications of Miocene and younger submarine volcanism West of Buldir Island
  • La réserve naturelle des Hautes-Fagnes deviendra-t-elle un Observatoire Géo-biosphère? L'évolution des végétations de tourbière haute active sur le plateau des Hautes Fagnes
  • and volcanic activity at a spreading centre, and the second phase involved a period of off-axis volcanic and tectonic activity.
  • Effects of man's activities on groundwater quality
  • Report on activities of the IGU working group on desertification in and around arid lands
  • Fotometriceskie metody opredelenija opticeski aktivnyh sloev ryhlyh porod i pocv. (Méthodes photométriques pour la détermination des couches optiquement actives de roches meubles et de sols)