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Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Spatial and scale-dependent controls on North American Pan-Arctic minimum river discharge
  • Alaska ; Amérique du Nord ; Analyse spatiale ; Arctique ; Bassin-versant ; Canada ; Changement climatique ; Cours d'eau ; Débit ; Echelle ; Hydrologie fluviale ; Modèle ; Northwest Territories
  • Alaska ; Arctic Region ; Canada ; Climatic change ; Discharge ; Fluvial hydrology ; Model ; North America ; Northwest Territories ; Scale ; Spatial analysis ; Stream ; Watershed
  • Spatial patterns of minimum monthly river discharge in the North American Pan-Arctic and its potential controls are explored with geographically weighted regression (GWR). Minimum discharge is indicative of soil water conditions; therefore
  • , understanding spatial variability of its controls may provide insights into patterns of hydrologic change. Here, GWR models are applied to determine a suitable combination of independent variables selected from a set of 8 variables. A model specification
  • with annual mean river discharge, temperature at time of minimum discharge, and biome describes well the spatial patterns in minimum discharge. However, minimum discharge in larger watersheds is influenced more by temperature and biome distributions than
  • 2012
  • Spatial patterns of March and September streamflow trends in Pacific Northwest streams, 1958-2008
  • Analyse spatiale ; Années 1958-2008 ; Changement climatique ; Cours d'eau ; Eau ; Eau de fonte ; Ecoulement fluvial ; Etats-Unis ; Idaho ; Modèle ; Oregon ; Précipitation ; Ressource en eau ; Réchauffement climatique ; Variation saisonnière
  • Climatic change ; Climatic warming ; Idaho ; Meltwater ; Model ; Oregon ; Precipitation ; Seasonal variation ; Spatial analysis ; Stream ; Stream flow ; United States of America ; Washington State ; Water ; Water resources
  • ) model results show spatial gradients of local R2 values with consistently higher local R2 values in the northern Cascades. This finding illustrates that different hydrologic landscape factors, such as geology and seasonal distribution of precipitation
  • , also influence streamflow trends in the PNW. In addition, the spatial analysis model results show that considering various geographic factors help clarify the dynamics of streamflow trends over a large geographical area, supporting a spatial analysis
  • approach over a spatial ordinary least squares (OLS)-estimated regression models for predicting streamflow trends.
  • 2012
  • Analyse spatiale ; Années 2000 ; Corrélation ; Croissance urbaine ; Eau souterraine ; Etats-Unis ; Hydrogéologie ; Recharge naturelle ; Ressource en eau ; Système d'information géographique ; Utilisation du sol ; Waukesha County ; Wisconsin
  • Correlation ; Geographical information system ; Hydrogeology ; Land use ; Natural recharge ; Spatial analysis ; The 2000's ; Underground water ; United States of America ; Urban growth ; Water resources ; Wisconsin
  • or moderate recharge potential; the correlation of urban growth with groundwater level is highly variable over time and space; and changes in groundwater level are strongly related to the spatial distribution of groundwater withdrawal. The study pinpointed
  • the need to consider the spatial unevenness of groundwater withdrawal in understanding the changes in groundwater level and groundwater recharge potential for better management of groundwater resources.
  • 2012
  • Analyse spatiale ; Années 1984-2008 ; Arizona ; Domaine aride ; Domaine semi-aride ; Espace-temps ; Etats-Unis ; Ilot de chaleur ; Indice de végétation ; LANDSAT ; Relation société-environnement ; Température ; Tucson ; Télédétection ; Utilisation
  • Arid area ; Arizona ; Heat island ; LANDSAT ; Remote sensing ; Semi-arid area ; Society-environment relationship ; Space time ; Spatial analysis ; Temperature ; Town ; United States of America ; Vegetation ; Vegetation index ; Water use
  • normalized difference vegetation index (NDVI) and surface temperatures, parcel-level zoning and assessor data, and residential water use records. Spatial analysis results demonstrate that cooling from vegetative evapotranspiration is mediated by development
  • 2012