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Wind pollution index and wind pollution frequency a climatological problem in urban planning.
  • Wind pollution index and wind pollution frequency a climatological problem in urban planning.
  • Arguing from the bases that the frequencies of occurrence of weather conducive to air pollution with wind from different directions are more useful to the planning of industrial location than the prevailing wind principle, the author suggests two
  • equations the wind pollution index, and the wind pollution frequency measurement for consideration by urban planners. (TNC).
Wind abrasion on Earth and Mars in Models in geomorphology.
  • Wind abrasion on Earth and Mars in Models in geomorphology.
  • Characteristics of wind blown particles, wind frequencies and material properties appropriate for estimating rates of wind abrasion on Earth and Mars.
Loess distribution by variable winds
  • Loess distribution by variable winds
Wind velocities determined from the surface textures of sand grains
  • Wind velocities determined from the surface textures of sand grains
Interaction between wind and sand surface
  • Interaction between wind and sand surface
  • Sand transport takes place when the wind speed is higher than some critical value. When the wind speed is not too high and the sand has a monodisperse size distribution it is possible that ripples are formed. Simple relationships are derived between
Wind-blown particles as weathering agents? An Antarctic example
  • Wind-blown particles as weathering agents? An Antarctic example
  • Observations from Taylor Valley suggest that the wedging effect of sand particles, packed by powerful winds into cracks in rocks, may act as a weathering mechanism. Discussion.
Wind tunnel experiments on dune sands
  • Wind tunnel experiments on dune sands
  • The effect of the dry bulk density, time and the presence of roughness elements at the surface on the wind erodibility of a dry dune sand (D=230-250m) were evaluated in a laboratory study.
Scale model simulations of the deposition of loess in hilly terrain
  • The sedimentation of loess in a 40 km2 area on the northern border of the Belgian loess belt, is investigated by means of wind tunnel experiments. Loess deposition is simulated on a relief scale model for different wind directions. Simulation
  • with northeast winds produces a loess deposition pattern that coincides closely to the field pattern, which may be an indication that the loess-bearing winds at the end of the Weichselian came from the northeast. Loess deposition occurs preferably on windward
  • slopes and not on leward ones. The wind-shadow concept, which is important in the case of sand deposition may not apply to fine materials such silt and clay.
Windprofile in der unteren Troposphäre nach Feinauswertung primärer Radiosondendaten. (Wind profiles in the lower troposphere obtained from a precision evaluation of primary radiosonde data)
  • Windprofile in der unteren Troposphäre nach Feinauswertung primärer Radiosondendaten. (Wind profiles in the lower troposphere obtained from a precision evaluation of primary radiosonde data)
  • This paper is concerned with the estimation of the errors of vertical wind profiles which are based on a rather detailed evaluation of routine radiosonde ascents. Errors occuring in determining wind direction, wind speed, and height are discussed
Interaction of the monsoon and Pacific trade wind system at interannual time scales. Part I. The equatorial zone
  • Interaction of the monsoon and Pacific trade wind system at interannual time scales. Part I. The equatorial zone
  • The monsoon and trade-winds are strongly coupled at interannual time scales. The coupling is effected through pulsations of the massive low-level convergence in the Indo-Pacific created by the joint action of each wind system. The interaction may
  • also be thought of as the spatial expansion/contraction of the individual wind systems. (JPB).
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
  • ). These values may then be used to estimate wind velocity at any other height above the surface or to estimate available wind power.
Influence of roughness elements and soil moisture on the resistance of sand to wind erosion in Aridic soils and geomorphic processes.
  • Influence of roughness elements and soil moisture on the resistance of sand to wind erosion in Aridic soils and geomorphic processes.
  • Data from wind tunnel tests show that the presence of roughness elements (gravels, spheres) on a dry, flat sand surface affects the erosional capacity of the wind. Their influence is twofold: they activate erosion when their density is small
  • and they protect the ground when their number is large. When the cover density is small, or the wind is strong enough, the spheres move in a direction opposite to the wind, at the same time digging themselves in the sand. Small quantities of soil moisture have
Lateral migration of linear dunes in the Strzelecki Desert, Australia
  • In this paper, the new and old observations are used to argue that these classical longitudinal dunes are oblique to modern winds, Holocene winds, and possibly to Pleistocene winds. Computer graphics experiments demonstrate that many
Velocity profiles measured on the windward slope of a transverse dune
  • The principal aim of this study is to measure the variability in wind speed on the windward slope of a dune, determine the magnitude of wind acceleration, describe the effects of this acceleration on the shape of wind profiles, and discuss
Particle dislodgment from a flat sand bed by wind
  • Particle dislodgment from a flat sand bed by wind
  • The paper describes a series of experiments in which dyed sand grains, spread on the surface of quartz dune sand in a wind-tunnel, were photographed at five second intervals while the sand was exposed to wind. The data on rate of loss of coloured
Macquarie Island. Eine vom Wind geprägte Naturlandschaft in der Sub-Antarktis. (Macquarie Island. A wind exposed natural region in the sub-Antarctic)
  • Macquarie Island. Eine vom Wind geprägte Naturlandschaft in der Sub-Antarktis. (Macquarie Island. A wind exposed natural region in the sub-Antarctic)
Windgeschwindigkeit als Verstärkungsfaktor für Rauchschäden im Wald in Abhängigkeit von Waldaufbau und Relief. (The wind velocity as a factor increasing the smoke damages in forests and their dependence on structure of the forest and relief conditions)
  • Windgeschwindigkeit als Verstärkungsfaktor für Rauchschäden im Wald in Abhängigkeit von Waldaufbau und Relief. (The wind velocity as a factor increasing the smoke damages in forests and their dependence on structure of the forest and relief
  • High wind velocities increase smoke damage in forests. Measures against smoke damage in forests include the investigation of the influence of forest structure and relief on the wind velocity. The forest structure under investigation is step-shaped
Uber die Beziehung zwischen dem Widerstandkoeffizienten und dem Windweg über See bei ablandigem Wind in Küstennähe. (On the relation between the drag coefficient and fetch above the sea in the case of land wind in coastal areas)
  • Uber die Beziehung zwischen dem Widerstandkoeffizienten und dem Windweg über See bei ablandigem Wind in Küstennähe. (On the relation between the drag coefficient and fetch above the sea in the case of land wind in coastal areas)
Cloud track winds in the polar regions from sequences of AVHRR images in Special issue : Applications of AVHRR data.
  • Cloud track winds in the polar regions from sequences of AVHRR images in Special issue : Applications of AVHRR data.
Characteristics of natural wind
  • Characteristics of natural wind