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Résultats de la recherche (148 résultats)

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Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Automated mapping ; European part of Russia ; Human impact ; Interannual variability ; Northern Russia ; Pollution ; Precipitation ; Spatial variation ; Thematic map
  • 2007
  • Aerosol ; Atmosphere ; European part of Russia ; Impact ; Interannual variability ; Moscow ; Pollution ; Urban area
  • 2007
  • Air temperature ; European part of Russia ; Evaporation ; Forecast ; Interannual variability ; Karelia ; Ladoga Lake ; Modelling ; Precipitation ; Twenty-first century ; Watershed
  • 2007
  • Atmospheric circulation ; Atmospheric pressure ; Climatic change ; Climatic variation ; Forecast ; Greenhouse effect ; Interannual variability ; Radiation balance ; Scenario ; Twentieth Century ; Twenty-first century
  • 2007
  • Brittany ; Drinking water ; France ; Hazard ; Hydrogeology ; Interannual variability ; Island ; Mid-latitude climate ; Risk ; Water ; Water budget ; Water resources
  • 2007
  • Dammed lake ; European part of Russia ; Forecast ; Interannual variability ; Lacustrine sediment ; Lake ; Spatial variation ; Suspended load ; Volga
  • 2007
  • Asia ; Central Asia ; Evaporation ; Glacier ; Interannual variability ; Precipitation ; Snow ; Stream ; Water budget ; Watershed ; Years 1930-39 ; Years 1980-89
  • 2007
  • Birch ; European part of Russia ; Interannual variability ; Phenology ; Russian Plain ; Vegetation ; Vegetation cycle ; Years 1970-79 ; Years 1990-99
  • 2007
  • Air temperature ; Climate fluctuation ; Climatology ; Europe ; Interannual variability ; Spatial distribution ; Thermal anomaly ; Twentieth Century
  • 2007
  • Recent developments in estimating land surface biogeophysical variables from optical remote sensing
  • Algorithme ; Années 2001-2007 ; Bibliographie ; Biogéographie ; Indice de végétation ; Modèle ; Réflectance ; Réseau neural ; Télédétection
  • This article reviews state-of-the-art algorithms for estimating land surface biogeophysical variables in optical remote sensing (from the visible to the thermal infrared spectrum) to stimulate the development of new algorithms and to utilize
  • 2007
  • Use of terrain variables for mapping gully erosion susceptibility in Lebanon
  • This paper predicts the geographic distribution and size of gullies across central Lebanon using a geographic information system (GIS) and terrain analysis. Eleven primary and three secondary topographic variables were generated and used along
  • with digital data collected from other sources (soil, geology) to statistically explain gully erosion field measurements. Three tree-based regression models were developed using different variables. The best regression tree model combined the steady-state
  • topographic wetness and sediment transport capacity indices and explained 80% of the variability in field gully measurements.
  • 2007
  • Traditional and geographic box plots of one hypothetical and two real-world geographic variables are constructed and compared to illustrate the often marked differences between traditional and geographic box plots of the same geographic variables
  • . The real-world geographic variables considered here are human population density (in the year 2000) within the contiguous 48 United States and five-year-average (January 2001 - December 2005) air temperature over the Artic land surface. Discussion
  • 2007
  • Impact of climate variability on Alpine glaciers in northwestern Italy
  • Alps (The) ; Climatic variability ; Climatic variation ; Glacier ; Glacier fluctuation ; Glacier retreat ; Impact ; Italy ; Twentieth Century
  • 2007
  • China ; Climatic change ; Climatic variability ; Hydrological regime ; Precipitation ; Snow ; Stream flow ; Temperature ; Watershed ; Xinjiang
  • This paper studies the change of streamflow and the impact of climatic variability conditions on regional hydrological cycle in the headwater of the Tarim River Basin. This study investigates possible causes of observed trends in streamflow
  • in an environment which is highly variable in terms of atmospheric conditions, and where snow and ice melt play an important role in the natural hydrological regime.
  • 2007
  • Inter-decadal variability in daily rainfall at Durham (UK) since the 1850s
  • Climatic variability ; Climatic variation ; England ; Pluviometry ; Precipitation ; Seasonality ; United Kingdom
  • 2007
  • Relation between vegetation changes, climate variables and land-use policy in Shaanxi Province, China
  • Agricultural land use ; China ; Climate ; Climatic variability ; Land use ; Loess ; Plateau ; Remote sensing ; Shaanxi ; Vegetation ; Vegetation dynamics ; Vegetation index ; Years 2000-2009
  • This study investigates relationships among land use, overall vegetation production, and climate variability in Shaanxi Province between 2000 and 2004. The data in this assessment include remote sensing information from moderate-resolution imaging
  • 2007
  • Regional variability of volcanic ash soils in south Ecuador : the relation with parent material, climate and land use
  • In this high Andes region, the land use changes affect particularly the páramo. The AA. analyse the regional variability of the soils in the south Ecuadorian rio Paute basin. Data from soil profiles along north-south transects are used to determine
  • the soil properties, and to relate the spatial variability of these properties to the major trends in parent material, volcanic ash deposits and climate. The impact of human activities on the soil properties is assessed in a case study in the Machangara
  • 2007
  • Agroclimatology ; Cereal ; Climatic change ; Ethiopia ; Geographical information system ; Model ; Precipitation ; Seasonal variability
  • is analysed by comparing daily rainfall data from 4 stations in 2 periods, 1963 to 1982 and 1984 to 2003, for changes in totals, seasonal distribution and variability. In spite of a greater variability in rainfall the farmers proved their knowledge
  • 2007
  • Climatic trend ; Climatic variability ; Model ; Periglacial features ; Permafrost ; Snow cover ; Soil properties ; Temperature ; Thermal regime
  • With a variable or changing climate, short-term energy imbalances between the active layer and permafrost result in transient departures from the equilibrium condition. This study examines the effects of such variability on an equilibrium permafrost
  • 2007
  • Comprehensive analysis of the climate variability in the eastern Mediterranean. Part I : map-pattern classification
  • Anticyclone ; Atmospheric circulation ; Classification ; Climate ; Climatic variability ; East Mediterranean Sea ; Mediterranean Sea ; Synoptic climatology ; Weather type
  • 2007