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Résultats de la recherche (1930 résultats)

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  • World energy crisis and Czechoslovakia
  • Balance ; Energie ; Energie nucléaire ; Exportation ; Géographie de l'Europe ; Importation ; Tchécoslovaquie
  • The energy balance, fuel consumption, electricity, coal, coke and other energy output development, exports and imports of energy to Czechoslovakia and evolution of new energy basis especially of nuclear energy.
  • The suburban energy balance in Miami, Florida
  • Energy balance ; Evaporation ; Florida ; Miami ; Radiation ; Subtropical zone ; United States of America ; Urban climate
  • Summertime measurements of local scale energy balance of a suburban site in a hot, wet climate, west Miami, in 1995, are presented. All of the radiation and turbulent heat fluxes were measured directly. In addition several derived surface
  • characteristics are calculated including the albedo, radiation temperature, emissivity, aerodynamic and canopy resistances. The results are used to test parameterizations to calculate several heat fluxes, including the fraction of energy used in evaporation.
  • Radiation and energy budgets of alpine tundra environments of North America
  • Albedo ; Bioclimatology ; Ecosystem ; Energy balance ; Microclimate ; Mountain ; Radiation ; Spatial variation ; Topoclimate ; Tundra
  • , and the relative importance of atmospheric and surface controls on the energy balance.
  • Recent physical climatology research (radiation and energy budget) from North American alpine tundra environments is summarized and directions for further research suggested: analyses of the spatial variations of albedo, the role of sloping surfaces
  • Belgium ; Consumption ; Energy ; Energy balance ; Energy consumption ; Industry ; Wallonie
  • Belgique ; Bilan énergétique ; Consommation ; Consommation d'énergie ; Energie ; Industrie ; Wallonie
  • Commerce extérieur ; Economies d'énergie ; Energie ; Energie nouvelle ; France ; Géographie de l'Europe ; Politique énergétique ; Source d'énergie
  • Situation et perspectives énergétiques générales. Besoins français d'énergie. Possibilités de couverture des besoins français. Comment réduire la dépendance du pays. Comment diminuer la charge de la balance commerciale. (INRA).
  • Energy, economy and environment in the Czech Republic
  • Czech Republic ; Economy ; Energy ; Energy balance ; Energy resources ; Natural gas ; Oil ; Twenty-first century
  • Bilan énergétique ; Economie ; Energie ; Gaz naturel ; Pétrole ; Ressource énergétique ; Siècle 21 ; Tchèque république
  • Situation and problems of energy and power industry in the country since 1989. The transition process is analysed with respect to the historical and regional background. In 21st century the Republic will have to face not only to resources of oil
  • Greenhouse gas and sulfate aerosol experiments using a simple global-energy-balance model
  • Aerosol ; Climatic variation ; Energy balance ; Global change ; Greenhouse effect ; Human impact ; Model ; Precipitation ; Temperature
  • A one-dimensional global-energy-balance model is used to simulate the climate response of increasing atmospheric greenhouse gas concentrations and sulfate aerosol loadings. The results from a simple numerical model provide interesting comparisons
  • Balance ; COMECON ; Energie ; Europe ; Géographie humaine ; Importance soviétique ; Structure
  • Role and dynamics of the basic energy-bearers in the SMEA countries and the significance of USSR to secure them with energy. Structure of fuel-power balance, classification concerning the degree of energy supply.
  • Ocenka ènergii podlednogo potoka
  • Energy ; Energy balance ; European part of Russia ; Moscow ; Regularization ; Runoff ; Stream ; Turbulence
  • Bilan énergétique ; Cours d'eau ; Ecoulement ; Ecoulement sous-glaciaire ; Energie ; Moskva ; Russie d'Europe ; Régularisation ; Turbulence
  • Examen du bilan énergétique d'un écoulement sous-glaciaire dans un cours d'eau régulé sur la partie de pente constante. Evaluation du rapport des pertes d'énergie dues au frottement visqueux à l'énergie totale d'écoulement.
  • The urban energy balance
  • Echange de l'énergie à l'interface terre-atmosphère comme base d'une classification des topoclimats
  • Climate ; Climate classification ; Heat balance ; Heat exchange ; Land atmosphere interaction ; Radiation balance ; Topoclimate
  • The paper presents the method of topoclimatic mapping which bases on the analyse of the heat balance of an active surface. The classification considers the structure of the radiation balance as well as the quantity of another components of the heat
  • balance equation. - (BJ)
  • Detecting energy-balance modifications at the onset of spring
  • Biogeography ; Climate ; Climatic data ; Energy balance ; Oklahoma ; Phenology ; Spring ; United States of America ; Vegetation cycle
  • The AA. explore a new-phenology-based strategy for evaluating the spring surface energy-balance shift. Their technique can reflect native-species responses and atmospheric surface layer change at a variety of sites, using synoptic-scale first leaf
  • of spring in midlatitudes is a modally abrupt (rather than gradual) seasonal transition in terms of energy balance and carbon-flux change that can be linked directly to vegetation phenology.
  • A spreadsheet-based (Microsoft Excel) point surface energy balance model for glacier and snow melt studies
  • Alps (The) ; Energy balance ; Glacial ablation ; Glacier ; Model ; Mountain ; Snow ; Software ; Switzerland
  • This paper describes a point surface energy balance model which runs whithin the Microsoft Excel spreadsheet package. The study incorporates a large amount of previous energy balance work and presents it in a useable form. The core model calculates
  • Besoins énergétiques ; Bulgarie ; Consommation d'énergie ; Energie ; Réserves énergétiques
  • Bulgaria ; Energetic reserve ; Energy consumption ; Energy;Power
  • The energy balance of Bulgaria is characterized by slow increase of the production and rapid expansion of the consumption of energy. From 17th in 1960 Bulgaria moved to 6th position in Europe by 1988 regarding the conditional fuel consumption
  • . The Bulgarian energy deficit is high - since 1975 about 62 % of the energy is imported and the relevant expences teach up to 3/4 of the agricultural export earnings of the country. - (MB)
  • Global energy balance and regional hydrology : a Burgundian case study
  • Atmospheric circulation ; Burgundy ; Climatic variation ; France ; Global change ; Greenhouse effect ; Model ; North America ; Paleoclimate ; Statistics ; Water balance
  • hydrological balance and presumably can be used to predict the effects of changing global energy balance on regional moisture.
  • In this article a link between annual global temperature and regional hydrological balance in east central France is demonstrated. Statistical significance and transfer functions are calculated using generally available data (stream discharge
  • Glavni izmenija v energijnija balans na socialisticeskite strani v Evropa (bez SSSR) Fundamental changes in the energy balance of the European socialist countries (the USSR excluded)
  • Besoins énergétiques ; Charbon ; Consommation d'énergie ; Dépendance énergétique ; Energie ; Europe ; Europe de l'Est ; Géographie de l'Europe ; Politique énergétique ; Source d'énergie
  • The structure and changes of energy balance are traced out for the period 1950-85 on the basis of conditional fuel (coal equivalent unit). In East Europe the coal bears 59 % of the calculated conditional fuel in 1985. The A. introduces relevant
  • from USSR). Gas extraction reaches 42 mld m3 and its consumption - 65 mld m3 (USSR being the only exporter). The rest of energy bearers in East Europe are also analyzed. - (MB)
  • The estimation and evapotranspiration of wheat field - An improved energy-aerodynamic resistance model
  • Results and discussion of the energy balance-aerodynamic resistance model for estimating the evapotranspiration of crops.
  • Modelling alpine permafrost distribution based on energy-balance data : a first step
  • Alps (The) ; Energy balance ; Meltwater ; Model ; Mountain ; Periglacial features ; Permafrost ; Snow ; Soil temperature ; Switzerland
  • The computer model PERMEBAL (which stands for Permafrost and Energy Balance) simulates the persistence of snow cover and daily ground surface temperatures of snow-free gridpoints. It was developed for high-mountain conditions. The model describes
  • different vertical energy fluxes at the surface. Special emphasis is given to simulation of snow-cover development (snow fall, snow redistribution, snowmelt). The aim is to model ground thermal conditions and thus permafrost distribution. The model
  • Summer energy balance on West Gulkana Glacier, Alaska, and linkages to a temporal synoptic index
  • Alaska ; Climatology ; Glacial ablation ; Glacier ; Glacier mass balance ; Glaciology ; Synoptic climatology
  • This paper analyzes summer, 1986, daily surface energy budgets, ablation, and variations of synoptic weather types experienced on the West Gulkana Glacier. Daily summer (June-August) synoptic conditions analyzed for the period 1948-86 were
  • Air temperature ; Albedo ; Bibliography ; Energy balance ; Glacier ; Meltwater ; Model ; Radiation
  • During the last few decades, a large variety of melt models have been developed, ranging from simple temperature-index to sophisticated energy-balance models. There is a recent trend towards modelling with both high temporal and spatial resolution
  • , modelling of turbulent fluxes and spatial and temporal variability in albedo constitute major uncertainties in current energy-balance models, and thus need further research.