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Channel responses to urbanization : scull and mud creeks in Fayetteville, Arkansas
  • Arkansas ; Cours d'eau ; Crue ; Erosion des berges ; Etats-Unis ; Fayetteville ; Géométrie hydraulique ; Impact ; Urbanisation ; Végétation ripicole
  • sediment sampling over 18 months. Standard U.S. Geological Survey measurement and sampling techniques were used. An overall decrease in mean depth was observed over the study period. Channel shape varied with land use in the study area. Sites with more
  • 2007
Supplementary data confirming the relationship between critical Shields stress, grain size and bed slope
  • Ecoulement ; Ecoulement fluvial ; Expérimentation ; Granulométrie ; Lit fluvial ; Pente de versant ; Royaume-Uni ; Régime hydrologique ; Scotland ; Seuil ; Transport sédimentaire
  • for a range of flows at different bed slopes. A reference transport method was used to define the beginning of sediment motion. The experimental data confirm the recent finding that the critical Shields stress for motion of coarse uniform sediment varies
  • 2007
Evidence for freeze-thaw events and their implications for rock weathering in northern Canada : II. The temperature at which water freezes in rock
  • British Columbia ; Canada ; Cycle gel-dégel ; Eau de la roche ; Météorisation ; Roche ; Seuil ; Température
  • Data collected from northern Canada indicate that the temperature at which freezing occurs can vary substantially, even for the same site. The results indicate that any form of freeze-thaw event counting, in the absence of some indicator
  • 2007
Evolution of hot-spring travertine accumulation in Karlovy Vary/Carlsbad (Czech Republic) and its significance for the evolution of Teplá valley and Ohře/Eger rift
  • Evolution of hot-spring travertine accumulation in Karlovy Vary/Carlsbad (Czech Republic) and its significance for the evolution of Teplá valley and Ohře/Eger rift
  • on the Karlovy Vary travertine accumulation.
  • VARY, K.
  • 2007
Ritual and place. Memorials of D-Day in Normandy
  • Since the 1950s commemorations have experienced a boom in European Societies. People flock to commemorations not only to heal and to identify with particular events but also to justify and to accuse. Such varying motives lead to differing
  • 2007
Simulation of the dissolution of weathered versus unweathered limestone in carbonic acid solutions of varying strength
  • Simulation of the dissolution of weathered versus unweathered limestone in carbonic acid solutions of varying strength
  • 2007
Mapping hostilities : the geography of xenophobia in southern Africa
  • , and to scapegoat non-citizens. The intensity of these feelings varies from country to country. The harshest sentiments are expressed by the citizens of South Africa, Namibia and, to a lesser extent, Botswana. - (AJC)
  • 2007
Microvariability in the early stages of cobble weathering by microenvironment on a glacier foreland, Storbreen, Jotunheimen, Norway
  • This paper addresses 3 matched microenvironments, namely cobbles that are exposed but whose surfaces vary between lichen covered and lichen free, and cobbles that are buried in the soil at about 40 cm. This suite of microenvironments is examined
  • 2007
The hottest and coldest places in the conterminous United States
  • National Weather Service data published in USA Today archive are used to analyze daily hottest and coldest places in the lower 48 states over a 10-year period (1995-2005). The location of hot and cold places vary considerably depending on what
  • 2007
Patterns of correlation among landscape metrics
  • The aim of this research is to gain a better understanding of the effects of spatial representation in landscape ecology. Nine hundred artificial landscapes were generated with varying spatial patterns created using a fractal landscape generator
  • 2007
Negative and positive effects of topsoil biological crusts on water availability along a rainfall gradient in a sandy arid area
  • Data on rainfall, runoff, soil moisture regime, and vegetation cover were collected at 5 monitoring sites in a sandy area along the Israeli-Egyptian border, where average annual rainfall varies from 86 to 160 mm. Results obtained cast doubt
  • 2007
Intra-storm attributes of extreme storm events in the Drakensberg, South Africa
  • the first detailed intra-storm data for the Drakensberg. Extreme rainfall events were found to vary in duration and in depth, but all stations measure a clear exponential distribution of cumulative kinetic energy content of storm rainfall over time. Further
  • 2007