inscription
Portail d'information géographique

Résultats de la recherche (1314 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre Par ville ? Par pays ? Par continent ?
  • On depositional cycles and geomorphological development of the Han River Delta of South China in Coasts : erosion and sedimentation.
  • Chine ; Chine du Sud ; Delta ; Géographie physique ; Géomorphodynamique ; Han River delta ; Niveau marin ; Quaternaire ; Sédimentologie ; Transgression
  • This paper has three objectives : to analyze the depositional cycles and features of the delta| to discuss the geomorphological characteristics and to describe the landform types| to give a discussion about the developmental process and mode
  • of the delta.
  • The evolution pattern on the Yellow River delta system
  • Capacité de charge ; Chine ; Delta ; Fluviatile ; Hebei ; Huanghe ; Hydrodynamique ; Méandre ; Stratigraphie ; Sédimentologie
  • Carrying capacity ; China ; Deltas ; Fluvial processes ; Huang He ; Hydrodynamics ; Meander ; Sedimentology ; Stratigraphy
  • The Yellow River delta is a fluvial action dominating, highly constructive sedimentary system. The evolution pattern of the delta is closely related to the hydrologic features and the suspended sediment load of the Yellow River as well as the river
  • mouth depositional forms and the diversion mode of the river's lower courses.
  • The development and planning of ports in the Zhujiang delta in Spatial development in the Pearl River Delta.
  • Chine ; Delta ; Développement ; Guangdong ; Géographie humaine ; Hydrodynamique ; Infrastructure portuaire ; Politique portuaire ; Port ; Site portuaire ; Xijiang delta
  • Barchan dunes on the Kuiseb River Delta, Namibia
  • Barkhane ; Delta ; Dune ; Désert ; Géomorphodynamique ; Namibie ; Variation spatiale
  • Barchan ; Delta ; Desert ; Dune ; Earth surface processes ; Namibia ; Spatial variation
  • The shape and behaviour of the barchan dunes on the Kuiseb River delta, south of the town of Walvis Bay, and the temporal and spatial variability of those characteristics are the focus of this study. - (AJC)
  • Land accretion of the Yellow River delta as influenced by drainage basin factors
  • Accrétion ; Action anthropique ; Bassin-versant ; Chine ; Delta ; Dynamique littorale ; Erosion ; Gestion de l'environnement ; Huanghe ; Précipitation
  • China ; Coastal dynamics ; Delta ; Environmental management ; Erosion ; Huang He ; Human impact ; Precipitation ; Watershed
  • In this study, an effort has been made to elucidate the effect of changing human activities and precipitation on land accretion of the Yellow River delta, to provide a stronger basis for environmental management in the Yellow River drainage basin
  • and its delta.
  • Updrift river mouth migration on cuspate deltas : two examples from the coast of Tuscany (Italy)
  • Delta ; Dynamique littorale ; Déboisement ; Italie ; Littoral ; Modèle ; Toscana ; Transport sédimentaire
  • Coastal dynamics ; Coastal environment ; Deforestation ; Delta ; Italy ; Model ; Sediment transport ; Toscana
  • The configuration of the Arno and Ombrone deltas (Italy) is evaluated.
  • Sediment transport in relation to a developing river delta in Models in geomorphology.
  • Cours d'eau ; Delta ; Etats-Unis ; Géographie physique ; Littoral ; Mississippi River ; Sédimentologie ; Transport sédimentaire
  • Implications of some near-bottom current measurements made on the continental shelf offshore of the developing Atchafalaya delta.
  • Relative sea-level rise in Yellow River Delta - Implications and response strategies
  • Action anthropique ; Chine ; Delta ; Géographie de l'Asie ; Holocène ; Huanghe ; Littoral ; Niveau marin ; Risque naturel ; Subsidence
  • rise is mainly a result of land subsidence. The major direct impacts of relative sea-level rise on the Yellow River Delta are submergence and salinity increase.
  • This paper focuses on the coastal plain, including three younger deltas, i.e. the delta near Tiajin, the modern delta, and the abandoned delta. In the first two deltas, land subsidence, both natural and man-induced, is serious, and local sea-level
  • The Mulberry Dike-Fish Pond complex: A Chinese ecosystem of land-water interaction on the Pearl River Delta
  • Canton River Delta ; Chine ; Delta ; Ecologie humaine ; Ecosystème ; Guangdong ; Géographie de l'Asie ; Pearl river ; Système de culture
  • Etude de l'efficacité tant écologique qu'économique du système de culture dans le delta de la rivière Pearl en Chine. (CBP).
  • Hong Kong's new industrial partnership with the Pearl River Delta in Spatial development in the Pearl River Delta.
  • Chine ; Coopération économique ; Division du travail ; Exportation ; Guangdong ; Géographie humaine ; Hong-Kong ; Investissement ; Localisation industrielle ; Relations internationales ; Sous-traitance ; Stratégie d'entreprise ; Xijiang delta
  • The paper focuses attention on the new cooperation in industrial development between Hong Kong and the Pearl River Delta. Both secondary and first-hand delta have been used to portrait the extent, nature and spatial configuration of the relationship
  • Environmental change in the Yangtze river delta since 12,000 years B.P.
  • Chine ; Datation C 14 ; Delta ; Diagramme pollinique ; Holocène ; Niveau marin ; Palynologie ; Paléo-environnement ; Quaternaire ; Stratigraphie ; Variation climatique
  • C14 dating ; China ; Climatic variation ; Delta ; Holocene ; Paleo-environment ; Palynology ; Pollen diagram ; Quaternary ; Sea level ; Stratigraphy
  • The AA. present a radiocarbon-dated pollen and sediment stratigraphy from a 52-m core collected from the Yangtze River delta. The data are interpreted in the context of climatic and vegetational changes, delta development, and sea-level history
  • of the Yangtze River delta region during the last 12,000 yr.
  • Anthropogenic effect on the flow and sediment of the lower Yellow River and its bearing on the evolution of Yellow River delta, China
  • Action anthropique ; Chine ; Cours d'eau ; Crue ; Delta ; Ecoulement fluvial ; Huanghe ; Ressource en eau ; Sécheresse ; Transport sédimentaire ; Utilisation de l'eau
  • China ; Delta ; Drought ; Flood ; Huang He ; Human impact ; Sediment transport ; Stream ; Stream flow ; Water resources ; Water use
  • This paper discusses the remarkable effect of flood discharge, unusual drought and strong storm surge on the evolution of the Yellow River delta and shows that in the study of deltas, greater attention should be paid to the rare events.
  • Les deltas et leur aménagement
  • Coastal environment ; Delta ; Fluvial deposit ; Geomorphometry ; River management
  • Accumulation fluviatile ; Aménagement fluvial ; Delta ; Géomorphométrie ; Littoral
  • Etude générale sur les deltas articulée autour des thèmes suivants : origine, caractéristique et types de deltas, aménagement des cours fluviaux et de deltas, exploitation des ressources deltaïques (sans ou avec modification du milieu hydro
  • The Pearl River Delta, Hong Kong and the Guangdong hinterland in Spatial development in the Pearl River Delta.
  • Dynamic analysis of evapotranspiration based on remote sensing in Yellow River Delta
  • Chine ; Date 1999 ; Delta ; Donnée climatique ; Evapotranspiration ; Gestion de l'eau ; Huanghe ; LANDSAT ; Modèle ; Ressource en eau ; Shandong ; Télédétection
  • China ; Climatic data ; Delta ; Evapotranspiration ; Huang He ; LANDSAT ; Model ; Remote sensing ; Shandong ; Water management ; Water resources
  • In this study SEBAL, an evapotranspiration (ET) computation model using remote sensing method is applied in the Yellow River Delta where water resource faces a rigorous situation. Three Landsat TM images and meteorology data of 1999 were used for ET
  • computation, and spatial and temporal change patterns of ET in the Yellow River Delta were analysed.
  • The evolution of the modern Luanhe River delta, north China
  • Beijing ; Charge en suspension ; Charge solide ; Chine ; Cours d'eau ; Delta ; Dune ; Fluviatile ; Géographie historique ; Géométrie hydraulique ; Lagune ; Luanhe ; Plaine d'inondation
  • Beijing ; Channel geometry ; China ; Delta ; Dune ; Floodplain ; Fluvial processes ; Historical geography ; Pool ; Sediment load ; Stream ; Suspended load
  • In 1915, the Luanhe River changed course to its present position, and has since developed a typical fan-shaped delta under fluvial-wave interaction. Owing to the water conservancy projects constructed in the catchment, the sand load that the Luanhe
  • River takes into the sea has decreased sharply since 1980. Hence, the evolution of the Luanhe River Delta can be divided into two phases : the delta constructing phase between 1915 and 1979, and the para-abandoned phase after 1979. In the different
  • phases, the delta characteristics are not alike, the delta has a different geometric pattern.
  • Regional accessibility of land traffic network in the Yangtze River Delta
  • Accessibilité ; Chine ; Delta ; Région ; Réseau de transports ; Trafic ferroviaire ; Trafic routier ; Yangtze
  • Accessibility ; China ; Delta ; Railway traffic ; Region ; Road traffic ; Transport network
  • Basé sur le réseau de trafic terrestre, les AA. évaluent l'accessibilité régionale présente et future de 16 villes majeures dans le delta du fleuve Yangtze.
  • Evolution of landforms in the area between the Krishna and the Godavari Deltas
  • Delta ; Godavari River ; Géographie de l'Asie ; Géomorphodynamique ; Géomorphologie littorale ; Inde ; Krishna River ; Lagon ; Photo-interprétation ; Télédétection
  • This write up is mainly based on the interpretation of air photos and Landsat imagery of the Inter-Delta Area between the Krishna and Godavari Deltas, has revealed a number of land forms such as lagoons, ancient beach ridges, tidal marshes, tidal
  • Barchan migration on the Kuiseb River delta, Namibia
  • Barkhane ; Dune ; Eolien ; Géographie de l'Afrique ; Kuiseb delta ; Namibie ; Photo-interprétation ; Photographie aérienne ; Transport éolien
  • A dense concentration of barchan sand dunes in the Kuiseb River delta were examined to ascertain the rate of migration, through the study of aerial photographs taken in 1961 and 1976 and fieldwork in 1988. Wide variations in migration rates were
  • Environmental consequences of human activity on the Yellow River and its delta, China
  • Action anthropique ; Capacité de charge ; Chine ; Cours d'eau ; Crue ; Delta ; Débit ; Ecosystème ; Géométrie hydraulique ; Huanghe ; Hydrologie fluviale ; Loess
  • Carrying capacity ; Channel geometry ; China ; Delta ; Discharge ; Ecosystem ; Flood ; Fluvial hydrology ; Huang He ; Human impact ; Loess ; Stream
  • deltas are eroding, whereas the present delta being formed in Bohai Bay is growing rapidly. Human activity, including extensive agriculture, heavy water consumption, the use of river-control structures, and war, has been responsible for many
  • of the changes occurring in the Yellow River and its delta.
  • The Yellow River is unique among the major rivers of the world because of its extremely heavy sediment load in relation to its small discharge. The Yellow River has changed courses numerous times during the past 5000 to 6000 years. The abandoned