inscription
Portail d'information géographique

Résultats de la recherche (5522 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
On the geomorphology of the Gulf of Elat-Aqaba and its borderlands in Beiträge zur Geomorphologie und Länderkunde. Prof. Dr. Harmut Valentin zum Gedächtnis.. (Contributions to the geomorphology and regional geography. To Professor Harmut Valentin's memory)
  • On the geomorphology of the Gulf of Elat-Aqaba and its borderlands in Beiträge zur Geomorphologie und Länderkunde. Prof. Dr. Harmut Valentin zum Gedächtnis.. (Contributions to the geomorphology and regional geography. To Professor Harmut Valentin's
  • A critical review of existing literature and published maps with a combined interpretation of aerial photographs and available satellite imagery serves to map geomorphologic units in the region of the Gulf of Elat-Aqaba. An attempt is made
Geomorphological mapping in alluvial plain and the assessment of environmental quality in Environmental and dynamic geomorphology.
  • Geomorphological mapping in alluvial plain and the assessment of environmental quality in Environmental and dynamic geomorphology.
  • significant geomorphological types are delimited and mapped and the value of areal units for agricultural use is established. (DLO).
Geomorphology, engineering and planning
  • Geomorphology, engineering and planning
  • Applied geomorphology ; Comparative study ; Concept ; Inherited features ; Planning ; Poland ; Research technique ; Risk ; Sustainable development ; Twentieth Century ; United Kingdom
  • This paper discusses ways in which geomorphology might be used by engineers and planners. In many countries following the lead given by Poland, it is now standard practice to take full account of the morphology and processes of the landscape during
  • an investigation. The aim of this paper is therefore to describe the nature of modern geomorphology and discuss how the assessments might be based on new approaches.
American geomorphology at the dawn of the 20th century
  • American geomorphology at the dawn of the 20th century
  • Aeolian features ; American school ; Concept ; Erosion cycle ; Fluvial processes ; Geomorphology ; Orogeny ; Structural geomorphology ; United States of America ; Years 1900-09
  • of geomorphology by 1900.
The use of landslide units in geomorphological mapping : an example in the Italian Dolomites
  • The use of landslide units in geomorphological mapping : an example in the Italian Dolomites
  • This paper aims at illustrating an innovative method for mapping gravitational deposits by considering, in particular, their spatial and temporal relationships and by grouping them into homogeneous units called landslide units. This investigation
  • method has been applied to the area of Cortina d'Ampezzo (Italian Dolomites) where more than 30 landslides have been identified and grouped in 12 landslide units. The results are discussed.
Decades of change : contributions of geomorphology to fluvial and coastal engineering and management
  • Decades of change : contributions of geomorphology to fluvial and coastal engineering and management
  • Changing the face of the earth-engineering geomorphology
  • Applied geomorphology ; Coastal environment ; England ; Environment ; Environmental management ; Geotechnics ; Model ; River management ; Stream ; United Kingdom ; Years 1990-99
  • Major developments in the contribution of geomorphology to engineering and environmental management have taken place over the past ten years in the United Kingdom, particularly in the coastal and fluvial spheres. This paper is not focused
  • on the results of specific applied studies, though examples are given, but rather aims to show that the policy, social, and wider scientific context has a profound influence on the opportunities for contribution of geomorphology and the type of work that is done.
Geomorphological zoning for flood inundation using satellite data
  • Geomorphological zoning for flood inundation using satellite data
  • Analyse en composantes principales ; Cartographie thématique ; Classification ; Crue ; Delta ; Inondation ; LANDSAT ; Risque naturel ; Thaïlande ; Thematic Mapper ; Télédétection ; Unité de paysage
  • Classification ; Delta ; Flood ; Inundation ; LANDSAT ; Landscape unit ; Natural hazards ; Principal components analysis ; Remote sensing ; Thailand ; Thematic Mapper ; Thematic mapping
  • works. The AA. classified land form units in the central plain of Thailand as following; delta, tidal flat, lagoon, mud spit, back marsh, natural levee, fan and former river course and so on. After that they transfer geomorphological land classification
  • The AA. investigated geomorphological features on the central plain of Thailand utilizing satellite remote sensing data and made geomorphological land classification map showing flood-stricken area. This map is useful for planning of flood control
An automated approach to the classification of the slope units using digital data
  • An automated approach to the classification of the slope units using digital data
  • Special issue. Application of remote sensing and GIS in geomorphology
  • objects and to extract the objects as groups of aggregated pixels. The geomorphological objects selected are slope units.
  • Computer analysis of integrated digital data sets can be exploited for geomorphological classification using automated methods developed in the remote sensing community. In this study, geomorphological classification in a moderate- to high-relief
  • area dominated by slope processes in southwest Yukon Territory, is performed with a combined set of geomorphometric and spectral variables in a linear discriminant analysis. An automated method was developed to find the boundaries of geomorphological
Mapping the spatial distribution of geomorphological processes in the Okstindan area of northern Norway, using Geomorphic Process Units as derived from remote sensing and ground survey
  • Mapping the spatial distribution of geomorphological processes in the Okstindan area of northern Norway, using Geomorphic Process Units as derived from remote sensing and ground survey
  • Aerial photography ; Digital elevation model ; Geomorphological mapping ; LANDSAT ; Mountain ; Norway ; Periglacial features ; Remote sensing ; Research technique ; Solifluction ; Spatial distribution ; Subarctic zone
  • The delineation of Geomorphic Process Units (GPUs) aims to quantify past, current and future geomorphological processes and the sediment flux associated with them. Five GPUs have been identified for the Okstindan area of northern Norway
  • by glacial and periglacial processes. The GPUs are focussed upon periglacial and colluvial processes. They have been applied to a test site in order to illustrate their potential for mapping the spatial distribution of geomorphological processes.
Arid geomorphology
  • Arid geomorphology
  • Arid land;Arid environment ; Climatic variation ; Dune ; Earth surface processes ; Eolian features ; Greenhouse effect ; United States
  • A large amount of recent and current research in arid lands geomorphology suggests that landform development is episodic, with climatic changes in timescales of decades to centuries providing an overable process framework. This article provides
Tájföldrajzi megfigyelések a Szentendrei-szigeten
  • Botany ; Danube ; Geomorphology ; Hungary ; Island ; Land use ; Landscape ; Microclimate ; Soil science
  • This paper summarises the results of a geomorphological and landscape analytical research on a sample area, the Szentendre island in the Danube. On the basis of detailed geomorphological, pedological, botanical surveys and micro-climatological
  • observations, the main landscape units (geotope groups) are identified and proposals for optimal land uses are made. - (JS)
Begriff und Wesen des Strandes als geomorphologische und naturräumliche Erscheinung. (The coastal shoreline as a geomorphological and regional phenomenon)
  • Begriff und Wesen des Strandes als geomorphologische und naturräumliche Erscheinung. (The coastal shoreline as a geomorphological and regional phenomenon)
  • A new definition of term coastal shoreline is given which will include all features of a seashore such as location, substance, processes, minor units, environmental effects, and technogenous facilities, and in this way considers the coastline
  • as a geomorphological and regional phenomenon being the interface of land and sea. (HL).
Geomorphology of subtidal and intertidal areas in the Southwest of the Netherlands in Developments in physical geography. A tribute to J. I. S. Zonneveld..
  • Geomorphology of subtidal and intertidal areas in the Southwest of the Netherlands in Developments in physical geography. A tribute to J. I. S. Zonneveld..
  • In the Southwest of the Netherlands tidal currents are responsible for deposition of subtidal and intertidal sediments in which several characteristic geomorphological units can be distinguished. (AIS).
Geomorphological mapping and surveying in intertropical regions : an example from the plateau regions in Southern-Shaba (Zaiire) in Proceedings.
  • Geomorphological mapping and surveying in intertropical regions : an example from the plateau regions in Southern-Shaba (Zaiire) in Proceedings.
  • Méthode utilisée pour l'élaboration d'une carte morphologique au 1:40 000. Description des unités macromorphologiques.-(HN)
  • International Geographical Union (IGU) Commission on geomorphological Survey and Mapping, International
Challenges and objectives for geomorphology in U.K. river management
  • Challenges and objectives for geomorphology in U.K. river management
  • Special issue: geomorphology at work
  • Applied geomorphology ; Bank erosion ; Drainage ; England ; Flood ; Floodplain ; Fluvial erosion ; Fluvial processes ; Human impact ; River management ; United Kingdom ; Wales ; Watershed
  • This paper reviews some of the challenges and objectives in the application of fluvial geomorphology to improved river management in the U.K. It describes the mechanisms by which geomorphology can be applied to solve problems, including
  • the development of design guidance, policy, management approaches, procedures and training. Perhaps some of the most significant challenges for luvial geomorphology in U.K. river management during the next decade will concern river and floodplain restoration.
Mapping of slope exposure in Environmental and dynamic geomorphology.
  • Mapping of slope exposure in Environmental and dynamic geomorphology.
  • Methods to map exposure of slopes, directly important for agriculture and influencing geomorphic processes too, are described. Percentage distributions are given of the exposure classes for administrative units, to promote regional planning. (DLO).
Szeged geomorfologiai vazlata. (Geomorphological sketch of Szeged)
  • Szeged geomorfologiai vazlata. (Geomorphological sketch of Szeged)
  • The five distinct topographic units of the vicinity of the town (alluvial plain covered with wind-blown sand, Upper Pleistocene residual levels, high flood-plain, low flood-plain and the active flood-plain) are described and mapped by the author.
Soils and geomorphology of the lower Little Cedar River valley, northeast Iowa
  • Soils and geomorphology of the lower Little Cedar River valley, northeast Iowa
  • Alluvium ; Floodplain ; Fluvial terrace ; Geomorphology ; Holocene ; Iowa ; Pleistocene ; Quaternary ; Sedimentology ; Soil ; Stratigraphy ; United States of America ; Valley
  • The AA. investigated the alluvial stratigraphy, soils, and geomorphology along a section of the lower Little Cedar River to aid in understanding the processes forming this landform region. They used terrace- and floodplain surface height above
  • the Little Cedar River, soil development, sedimentological characteristics, and stone lines to distinguish alluvial units and landforms. Three Pleistocene surfaces were mapped in the valley, including two terraces and an erosion footslope. Holocene alluvial
  • units identified include three terraces and the modern floodplain. Elsewhere in the Midwest, these units have been described as the Deforest Formation.
The chronology of coastal dune development in the United Kingdom in Dunes of the European Coasts. Geomorphology - Hydrology - Soils.
  • The chronology of coastal dune development in the United Kingdom in Dunes of the European Coasts. Geomorphology - Hydrology - Soils.
Distribution and genesis of soils of the northeastern United States in Appalachian geomorphology.
  • Distribution and genesis of soils of the northeastern United States in Appalachian geomorphology.