inscription
PORTAIL D'INFORMATION GÉOGRAPHIQUE

Résultats de la recherche (1669 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre Par ville ? Par pays ? Par continent ?
Les référentiels de topographie et de géodésie
  • Les référentiels de topographie et de géodésie
  • GPS ; Géodésie ; Topographie
  • Geodesy ; Topography
The role of topography in controlling throughflow generation: a reply
  • The role of topography in controlling throughflow generation: a reply
  • Eau du sol ; Ecoulement ; Géographie physique ; Hydrogéologie ; Infiltration ; Méthodologie ; Topographie ; Versant
  • Réponse à l'article de Speight (J. C.): The role of topography in controlling throughflow generation: a discussion. Earth Surface Processes, 1980, n5, pp.187-191.
Determining paleosol topography using seismic refraction
  • Determining paleosol topography using seismic refraction
  • Chine ; Gansu ; Interglaciaire ; Loess ; Paléosol ; Plateau ; Quaternaire ; Sismique ; Stratigraphie ; Technique de recherche ; Topographie
  • China ; Gansu ; Interglacial ; Loess ; Palaeosol ; Plateau ; Quaternary ; Research technique ; Seismic method ; Stratigraphy ; Topography
  • The seismic refraction reversed profiling technique has been used to investigate the topography of the last interglacial soil (paléosol S1) within the central Chinese Loess Plateau near Xifeng: variations in the depth. Discussion about the results
Fractal interrelationships between topography and structure
  • Fractal interrelationships between topography and structure
  • Amérique du Nord ; Appalachian Mountains ; Distribution spatiale ; Faille ; Géomorphologie structurale ; Géométrie fractale ; Sismique ; Tectonique ; Topographie
  • Appalachian Mountains ; Fault ; Fractal geometry ; North America ; Seismic method ; Spatial distribution ; Structural geomorphology ; Tectonics ; Topography
  • The purpose of this paper is to demonstrate that fractal analysis reveals systematic changes in the appearance of topography and near-surface structure and can be used to quantify systematic interrelationships between them. The study incorporates
  • fractal analysis of topography, structural cross-sections and reflection seismic data of two area of the North American central Appalachian Mountains : one in the intensely deformed Valley and Ridge province and the other in the relatively undeformed
Topography and ice sheet growth
  • Topography and ice sheet growth
  • Bilan de masse ; Glaciaire ; Inlandsis ; Modèle ; Paléotempérature ; Prévision ; Royaume-Uni ; Scotland ; Topographie ; Variation climatique
  • Climatic variation ; Forecast;Prediction ; Glacial features ; Glacier mass balance ; Ice sheets;Ice cap;Inlandsis ; Model ; Scotland ; Topography ; United Kingdom
  • This paper uses a numerical ice sheet model to investigate the role of topography in influencing ice sheat growth. The model is applied to the maritime, mid-latitutde uplands of Scotland and relies on a series of assumptions about mass balance
  • , topography, and ice flow. It is driven by an imposed pattern of temperature change. The model is able to predict effectively the extent and thickness of the Loch Lomond ice sheet, using a palaeotemperature curve based on Coleoptera assemblages.
Flow and bed topography in curved open channels
  • Flow and bed topography in curved open channels
Submarine topography near Showa Station, Antarctica
  • Submarine topography near Showa Station, Antarctica
Insights into the tectonic topography of the present-day landscape of the central Iberian Peninsula (Spain)
  • Insights into the tectonic topography of the present-day landscape of the central Iberian Peninsula (Spain)
  • Espagne ; Modèle numérique de terrain ; Paysage ; Pente de versant ; Rugosité ; Structure géologique ; Système d'information géographique ; Tectonique ; Topographie
  • Digital elevation model ; Geographical information system ; Geological structure ; Landscape ; Roughness ; Slope gradient ; Spain ; Tectonics ; Topography
  • This paper examines topography-structure relationships in an effort to evaluate tectonic signatures in the landscape, paying special attention to recent tectonic activity. Topography, defined by elevation data, was analysed by both GIS and trend
  • -surface analysis. Digital data were used to produce a Digital Elevation Model, allowing for rapid characterization of landscapes and the analysis of tectonic structure-topography relationships. By combining slope gradients and slope orientations, the AA
  • . created maps of topography roughness, in which incised river valleys are well described.
The effect of topography on the development of salt-affected soils in Hungary in Environmental and dynamic geomorphology.
  • The effect of topography on the development of salt-affected soils in Hungary in Environmental and dynamic geomorphology.
  • Effet orographique ; Fluviatile ; Géographie de l'Europe ; Hongrie ; Plaine alluviale ; Pédogenèse ; Sol ; Sol salin ; Topographie
  • The governing role of topography is stressed in the spatial distribution of salt-affected soils and in the constellation of conditions inducing solonchak formation. Flood-plain geomorphological patterns (natural levees and enclosed depressions
Naissance et développement de la topographie de la France in Cartografia e istituzioni in età moderna.
  • Naissance et développement de la topographie de la France in Cartografia e istituzioni in età moderna.
  • Cartographie ; France ; Histoire de la cartographie ; Histoire de la géographie ; Topographie
Ecological observations in a tropical karst terrain, West Malaysia. I. Variations in topography, soils and vegetation
  • Ecological observations in a tropical karst terrain, West Malaysia. I. Variations in topography, soils and vegetation
  • Géographie de l'Asie ; Karst ; Malaisie ; Sol ; Synécologie descriptive ; Topographie ; Végétation ; West Malaysia ; Zone intertropicale
Topografie-geodezie.. (Topographie-géodésie)
  • Topografie-geodezie.. (Topographie-géodésie)
  • Enseignement de la géographie ; Généralités sur la géographie ; Géodésie ; Manuel ; Topographie
Topography of the Oceans with Deep Sea Drilling Project sites through LEG 71.
  • Topography of the Oceans with Deep Sea Drilling Project sites through LEG 71.
  • Carte ; Deep sea drilling project ; Fond sous-marin ; Géographie physique ; Localisation ; Monde ; Océan ; Topographie
Prostranstvennye korreljacionnye funkcii maksimal'nyh rashodov vody gornyh rek. (Débit maximal des rivières de montagne en fonction de la topographie)
  • Prostranstvennye korreljacionnye funkcii maksimal'nyh rashodov vody gornyh rek. (Débit maximal des rivières de montagne en fonction de la topographie)
  • Cours d'eau ; Débit ; Ecoulement ; Géographie physique ; Montagne ; Topographie ; URSS ; Variabilité
Modelling gravel-bed topography from sediment transport
  • Modelling gravel-bed topography from sediment transport
  • Présentation d'un modèle de simulation de la topographie d'un lit de graviers, basé sur la description du transport des sédiments grain par grain.
Tyr a l epoque des croisades : topographie urbaine d une ville majeure de Terre sainte
  • Tyr a l epoque des croisades : topographie urbaine d une ville majeure de Terre sainte
  • Tyr - Liban - Moyen-Orient - Moyen-Orient - Archeologie medievale - Topographie - Croisades - Fortifications - Paysage urbain
Recherches sur la topographie chretienne des cites de l Afrique antique (a l exception de Carthage)
  • Recherches sur la topographie chretienne des cites de l Afrique antique (a l exception de Carthage)
  • Afrique du Nord - Afrique - Topographie urbaine - Eglises - Architecture religieuse
The influence of topography on snowpatch distribution in southern Iceland : a new hypothesis for glacier formation? : comment and reply
  • The influence of topography on snowpatch distribution in southern Iceland : a new hypothesis for glacier formation? : comment and reply
  • Glaciation ; Glacier ; Islande ; Modèle ; Neige ; Niche de nivation ; Topographie
  • Glaciation ; Glacier ; Iceland ; Model ; Nivation hollow ; Snow ; Topography
  • Brown and Ward (1996) have brought attention to the importance of topography on snow accumulation. Surveying the mountainous region north of Myrdalsjökull in southern Iceland, they offer an alternative view with a bottom-up model of initial
Maximum entropy spectral analysis for the estimation of fractals in topography
  • Maximum entropy spectral analysis for the estimation of fractals in topography
  • Analyse spectrale ; Colorado ; Etats-Unis ; Géométrie fractale ; Modèle ; Méthodologie ; Texas ; Topographie ; Variation spatiale
  • Colorado ; Fractal geometry ; Methodology ; Model ; Spatial variation ; Spectral analysis ; Texas ; Topography ; United States of America
  • surfaces. Comparisons will be made with one of the few published examples of the application of this estimation method for the analysis of topography and calculation of fractal dimension.
Developments in monitoring and modelling small-scale river bed topography
  • Developments in monitoring and modelling small-scale river bed topography
  • Dynamique fluviale ; Fluviatile ; Lit fluvial ; Modèle numérique ; Montagne ; Photogrammétrie ; Suisse ; Topographie ; Valais
  • Fluvial dynamics ; Fluvial processes ; Mountain ; Numerical model ; Photogrammetry ; River bed ; Switzerland ; Topography ; Valais
  • This paper presents a detailed assessment of the distributed monitoring and terrain modelling of river bed topography using a technique that combines rigorous analytical photogrammetry with rapid ground survey. A detailed assessment is undertaken