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Résultats de la recherche (134 résultats)

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  • Variability of the South Shetland Islands geoecosystem
  • Air temperature ; Biodiversity ; Ecosystem ; Geosystem ; Global change ; Human impact ; Interannual variability ; Marine fauna ; Polar region ; Shetland Islands ; United Kingdom ; Water temperature
  • Variability is one of the characteristic features of polar geoecosystems. On the meso- and macro-time scales, the variability of geoecosystems can be expressed in relation to : irregular interannual changes, multi-year cyclic changes, year-to-year
  • directional changes and anthropogenic changes. Polish multidisciplinary research concerning the physical, chemical and biological processes in the region of Admiralty Bay (King George Island, South Shetland Islands) demonstrates such variability.
  • 1997
  • Long-term variability in the number of days with precipitation in Kraków in relation to circulation patterns
  • Atmospheric circulation ; Cracow ; Interannual variability ; Nineteenth Century ; Poland ; Precipitation ; Seasonal variability ; Time series ; Twentieth Century
  • This paper analyses long-term variability in the number of days with precipitation in Kraków in relation to changes in atmospheric circulation. This paper provides a certain contribution to the reconstruction of the climate in the first half
  • 1997
  • Climatic variability and change over southern Africa : a reflection on underlying processes
  • Atmospheric circulation ; Climate oscillation ; Climatic variation ; El Niño ; Greenhouse effect ; Interannual variability ; Model ; Ocean atmosphere interaction ; Precipitation ; Semi-arid area ; South Africa ; Surface temperature ; Tropical
  • In this paper, progress in understanding the interannual variability of the atmosphere over southern Africa and its association with the surrounding oceans is reviewed. First, the quasi-periodic nature of interannual rainfall variability
  • 1997
  • Catastrophe ; Indiana ; Interannual variability ; Land use ; Seasonality ; Spatial variation ; Synoptic climatology ; Tornado ; United States of America ; Weather type
  • This paper documents the spatial and temporal variability of tornadic storms in the state of Indiana and the nature and severity of those events, and employ statistical techniques to infer causality of the variability with particular emphasis
  • 1997
  • Congo ; Gabon ; Interannual variability ; Precipitation ; Rainfall regime ; Tropical zone
  • 1997
  • Applied hydrology ; California ; Climatic variation ; Delta ; Global change ; Hydraulic works ; Interannual variability ; Seasonal variability ; United States of America ; Water resources
  • 1997
  • Agriculture ; Agroclimatology ; China ; Climate ; Climatic event ; Interannual variability ; Natural hazards ; Spatial variation
  • 1997
  • Andalusia ; Climate ; Interannual variability ; Nineteenth Century ; Periodicity ; Precipitation ; Spain ; Spectral analysis ; Time series ; Twentieth Century
  • 1997
  • Agroclimatology ; Cereal ; Crop yield ; Impact ; Interannual variability ; Morocco ; Precipitation ; Wheat
  • 1997
  • Bioclimatology ; Greece ; Heat ; Heat wave ; Human bioclimatology ; Interannual variability ; Spatial variation ; Statistics ; Temperature ; Years 1980-89
  • 1997
  • Campania ; Climate ; Climatic trend ; Interannual variability ; Italy ; Perception ; Snow ; Snow cover ; Twentieth Century ; Winter
  • 1997
  • Climatic variation ; El Niño ; Evaporation ; Global change ; Hydrology ; Interannual variability ; Model ; Precipitation ; Scale ; Seasonal variation ; Simulation ; South Africa ; Temperature ; Water balance ; Water resources
  • 1997
  • Annual variation ; Climatology ; Interannual variability ; Methodology ; Spatial analysis ; Spatial autocorrelation ; United States of America ; Wind ; Wind speed
  • 1997
  • Africa ; Atmospheric dynamics ; Central Africa ; Convection ; Forest ; Interannual variability ; Phenology ; Precipitation ; Tropical rain forest ; Tropical zone ; Water cycle
  • 1997
  • Variability of precipitation in selected regions of the Carpathians in the years 1951-1995
  • Atmospheric circulation ; Carpathian Mountains ; Cyclone ; Poland ; Precipitation ; Seasonal variability ; Spatial variation ; Statistics ; Time series
  • The paper presents an analysis of recent trends for precipitation in the Carpathians on the basis of data for the period 1951-1995. Temporal variability in precipitation was examined based on area-averaged data for the Carpathians
  • 1997
  • On relationships between climate variability and change, and societies
  • Adaptation ; Climate ; Climatic variability ; Climatic variation ; Forecast ; Impact ; Modelling ; Social change ; Society
  • 1997
  • Quantification of catchment discharge sensitivity to climate variability
  • Atmospheric circulation ; Climatic variability ; France ; Global change ; Hydrology ; Loire ; Model ; Watershed
  • 1997
  • Variability of the air temperature in Central Europe in the years 1792-1995
  • Air temperature ; Annual variation ; Austria ; Central Europe ; Cracow ; Czech Republic ; Europe ; Nineteenth Century ; Periodicity ; Poland ; Prague ; Regression analysis ; Seasonal variability ; Temperature ; Time series ; Twentieth Century
  • to serve also a basis for further, more precise studies including the variability and cyclicity of air temperature values in particular months. The methods used are known in statistics. Applied were : the equalization of long series by way of moving means
  • 1997
  • Dunefield activity and interactions with climatic variability in the southwest Kalahari Desert
  • Aeolian features ; Aeolian transport ; Africa ; Arid area ; Climatic variability ; Desert ; Dune ; Index ; Plant canopy ; Potential evapotranspiration ; Precipitation ; Sand ; Southern Africa ; Wind
  • An analysis is undertaken of the temporal variability of climatic parameters that influence dunefield aeolian activity. Data from 7 meteorological stations in the southwestern Kalahari Desert are used, spanning the period 1960-1992. Erosivity
  • 1997
  • Multiple regression analysis is used to address a central research question : what variables predict the location of pollution emissions ? Data are used to assess relationships among socioeconomic class variables, industrial and land-use variables
  • , and pollution emissions. Manufacturing employment, urbanization variables, dwelling value, and household income are all related to pollution emissions. A conceptual model of the development process is formulated to explain the positive relationship between
  • 1997