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Predicting wind velocities from sand dune and draa spacings determined by Fourier analysis in Interpretation of windflow characteristics from Eolian landforms.
  • Predicting wind velocities from sand dune and draa spacings determined by Fourier analysis in Interpretation of windflow characteristics from Eolian landforms.
  • The spacing of sand dunes and draas (dune groups) is one parameter that can be used to estimate wind velocity and available wind power. Measurements of spacings can be made directly from LANDSAT imagery or aerial photography. Fourier analysis
  • of these measurements reveals the predominant spacings. Assuming that shear velocity is the dominant factor determining the wave leugth of bedforms, the spacing can be used to compute the threshold shear velocity using mathematical relationships derived by Wilson (1972
Grossmassstäbige Trendflächenanalysen für Merkmale der geookologischen Raumstruktur. (Large-scale analyses of trend areas for characteristics of geoecological space structures)
  • Grossmassstäbige Trendflächenanalysen für Merkmale der geookologischen Raumstruktur. (Large-scale analyses of trend areas for characteristics of geoecological space structures)
  • The georelief (especially of solid stone areas covered wih loose sediments and loose materials) as well as features of geoecological space structures (plant-sociological multitude of species, formation of biomass and yield) may be modelled as trend
Vegetation communities and the empty pore space of soils as indicators of catchment hydrology
  • Vegetation communities and the empty pore space of soils as indicators of catchment hydrology
A study of space variations of precipitation by factor analysis
  • A study of space variations of precipitation by factor analysis
Population regionals a perspective in geographic space of India in Natural hazards management in South America.
  • Population regionals a perspective in geographic space of India in Natural hazards management in South America.
Izucenie morfostruktury gornyh stran po kosmiceskim snimkam Etude de la morphostructure des montagnes d'après les images satellite
  • The paper considers some possibilities of the mountains' morphostructural analysis on the basis of space data. Regional examples of space photoes interpretation are given, folds, blocks and volcanic structures were identified within Pacific
  • and Mediterranean belts. The examples testify to the scientific and technological efficiency of the remote sensing application to geotectural and morphostructural studies of lineaments, linear and isometric structures on various scales. Space morphostructural
Variation in the time and space of leaf area index in a Zambesian open forest of wetter Miombo type (Lubumbashi, Zaïre)
  • Variation in the time and space of leaf area index in a Zambesian open forest of wetter Miombo type (Lubumbashi, Zaïre)
On the characterization of Belgian soils in Land qualities in space and time.
  • On the characterization of Belgian soils in Land qualities in space and time.
Dynamic plant ecology: the spectrum of vegetational change in space and time
  • Dynamic plant ecology: the spectrum of vegetational change in space and time
Space-time quantification of rainfall inputs for hydrological transport models
  • Space-time quantification of rainfall inputs for hydrological transport models
Bed forms and bend-arc spacings of some coarse bedload channels in upland Britain
  • Bed forms and bend-arc spacings of some coarse bedload channels in upland Britain
Agrarregionen unter Standortstress. Produktionsverfahren der Bodennutzung in Marginalzonen des Weltagrarraumes.. (Agricultural regions under the stress of their location. Techniques of production of the land use in marginal zones of the world agricultural space)
  • agricultural space)
Dust storms in space and time
  • Dust storms in space and time
Antarctic circumpolar current: space and time fluctuations in the Drake Passage
  • Antarctic circumpolar current: space and time fluctuations in the Drake Passage
Some comparisons of flood statistics in real and log space
  • Some comparisons of flood statistics in real and log space
On methods for measuring natural evaporation
  • This paper presents an integrated overview of measurement and computing methods for estimating natural evaporation from communities ranging from agricultural to forested lands and the adequacy of the methods in terms of space scale and time scale.
The influence of microform bed roughness elements on flow and sediment transport in gravel bed rivers
  • A series of laboratory flume experiments shows that flow resistance rises to, and falls from, a peak value as the longitudinal spacing of pebble clusters decreases, in a manner similar to that shown by others for strip roughness, isolated blocks
  • , and simulated ripples and dunes. The experiments also reveal a strong inverse relationship between bedload flux rates and the flow resistance induced by the concentration of pebble clusters. It is concluded that pebblo cluster spacing tends towards
The distribution in space of local rainfall in the Namib desert
  • The distribution in space of local rainfall in the Namib desert
The simulation of space-dependent data in geology in Future trends in geomathematics.
  • The simulation of space-dependent data in geology in Future trends in geomathematics.
Soulèvement cryogénique de petites pierres par la glace en lentilles. Rôle initiateur de la cryodessiccation
  • 1 Stones smaller in size than the spacing between the ice lenses in a frost susceptible matrix are pushed up by basal ice segregation. This nucleation takes place in a dessiccation crack open at the base of the stone (shrinking). 2 Stones bigger
  • in size that the spacing between the ice lenses use to be pulled up by frost heaving. Nevertheless, in very humid conditions, the frost pull effect can be enhanced by a frost push effect resulting of a basal segregation occurring in a drawing crack