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Simulation of daily total wind energy using a time-series model
  • Simulation of daily total wind energy using a time-series model
  • Climatic variability ; Forecast ; Interannual variability ; Model ; Simulation ; Statistics ; Time series ; United States of America ; Wind ; Wind speed
  • The focus of this research is the development, evaluation, and implementation of a mathematical/statistical time-series model to simulate daily total wind energy in the central United States. By modeling the annual cycle, sub-annual cycles
  • , autocorrelation, and random component of the time series, a concise representation of daily total wind energy is provided. The model can be used to create scenarios and probability distributions for wind energy that are conditional on time of year and persistence
  • 1998
Wind erosion in agricultural soils : an example of limited supply of particles available for erosion
  • Wind erosion in agricultural soils : an example of limited supply of particles available for erosion
  • Agricultural practice ; Agropedology ; Aragón ; Arid area ; Semi-arid area ; Soil ; Soil erosion ; Spain ; Wind ; Wind erosion
  • Due to particular soil and climate conditions and inappropriate agricultural practices, Central Aragón (NE Spain) is a semiarid region prone to land degradation by wind erosion. A field study was conducted during the summer 1995 to provide a first
  • quantification of wind erosion in agricultural soils of this region. This paper focuses on the mouldboard ploughing experiment, analysing in detail changes in vertical dust flux with time in response to changes in soil surface erodibility.
  • 1998
Influence of cryptogamic crust disturbance to wind erosion on sand and loam rangeland soils
  • Influence of cryptogamic crust disturbance to wind erosion on sand and loam rangeland soils
  • Aeolian features ; Australia ; Biogenic process ; Duricrust ; Erodibility ; Erosion rate ; Experimentation ; New South Wales ; Soil erosion ; Soil properties ; Wind erosion
  • This paper reports on a study using a portable field wind tunnel to investigate the relative sediment fluxes and threshold wind velocities of two soils with three levels of surface crust disturbance : nil, moderate and severe. A sheep's foot roller
  • was used to simulate the disturbance caused by domestic stock. Hypotheses about the role of cryptogamic crusts in providing soil protection from wind erosion by binding the surface and increasing its surface roughness are explored.
  • 1998
Climatology of wind-driven rain for the contiguous United States for the period 1971 to 1995
  • Climatology of wind-driven rain for the contiguous United States for the period 1971 to 1995
  • Applied climatology ; Climatic chart ; Climatic event ; Linear regression ; Model ; Precipitation ; Season ; United States of America ; Wind ; Years 1970-79 ; Years 1980-89 ; Years 1990-99
  • Rainfall that is pushed along horizontally by the wind is referred to as wind-driven rain (WDR) or driving rain. Water penetration of exposed building surfaces is enhanced with WDR, and structural damage is accelerated with repeated WDR exposure
  • 1998
Transient sand transport rates after wind tunnel start-up
  • Transient sand transport rates after wind tunnel start-up
  • Aeolian features ; Aeolian transport ; Experimentation ; Grain size distribution ; Research technique ; Sand ; Scotland ; United Kingdom ; Wind speed
  • Wind tunnel experiments were conducted with a well mixed, flat sand bed, 5.7 m in length, to study the initial sand flux response at 3 different shear velocities. In some experiments, the bed was allowed to deplete without replenishment; in others
  • , sand was fed 10.8 m upstream of the monitored cross-section. Many factors bring about non-stationarity in total sand transport rate. The nature and relative importance of each is discussed by reference to the reported wind tunnel experiments
  • 1998
Aeolian micromorphology as a geoindicator of wind conditions in granitic mountains
  • Aeolian micromorphology as a geoindicator of wind conditions in granitic mountains
  • Aeolian features ; Biological indicator ; Micromorphology ; Mountain ; Portugal ; Topoclimate ; Wind
  • 1998
Particle transport and adjustments of the boundary layer over rough surfaces with an unrestricted, upwind supply of sediment
  • Aeolian deflation ; Aeolian features ; Experimentation ; Gravel ; Roughness ; Sediment transport ; Simulation ; Wind ; Wind erosion
  • This paper reports on a series of wind-tunnel simulations of the development of a deflation lag with natural pebbles of varied sizes, shapes and placements. Following the stabilization of the surface, an external upwind source of sand was introduced
  • 1998
Wind-blown sand on beaches : an evaluation of models
  • Wind-blown sand on beaches : an evaluation of models
  • Five models for predicting rates of aeolian sand transport were evaluated using empirical data obtained from field experiments conducted in April 1994, at a beach on Inch Spit, County Kerry, Ireland. Measurements were made of vertical wind profiles
  • 1998
Windpolished boulders as indicators of a Late Weichselian wind regime in Denmark in relation to neighbouring areas
  • Windpolished boulders as indicators of a Late Weichselian wind regime in Denmark in relation to neighbouring areas
  • Aeolian features ; Denmark ; Erratic boulder ; Ice sheet ; Palaeo-environment ; Quaternary ; Spatial variation ; Wind ; Wind erosion
  • 1998
Wind-traverse corrugations in Pleistocene periglacial landscapes of central Pennsylvania
  • Wind-traverse corrugations in Pleistocene periglacial landscapes of central Pennsylvania
  • Aeolian features ; Mass movement ; Nivation hollow ; Palaeo-environment ; Pennsylvania ; Periglacial features ; Pleistocene ; Snow ; Thermokarst ; United States of America ; Wind
  • Periglacial conditions beyond the Wisconsin glacial limit produced wind-transverse corrugations in east-central Pennsylvania. The corrugations are low, linear ridges typically several hundred meters long, 10-30 m wide, 3-8 m above the local slope
  • 1998
Influence of vegetation cover on sand transport by wind : field studies at Owens Lake, California
  • Influence of vegetation cover on sand transport by wind : field studies at Owens Lake, California
  • Aeolian features ; Aeolian transport ; California ; Delta ; Dune ; Erosion control ; Model ; Plant cover ; United States of America ; Vegetation ; Wind erosion ; Wind speed
  • 1998
Against the wind : on reintroducing commons law in Northern Norway
  • Against the wind : on reintroducing commons law in Northern Norway
  • 1998
Slope effect on saltation over a climbing sand dune
  • Aeolian features ; Aeolian transport ; Arid area ; Desert ; Dune ; Grain size distribution ; Israel ; Model ; Negev ; Slope gradient ; Wind speed
  • Results from a three-year study are presented that integrate field work (in the Negev Desert of Israel), physical modeling (wind-tunnel testing at UC Davis), and numerical solutions of grain trajectories to model and explain sand transport over
  • 1998
Le potentiel d'énergie éolienne de l'oblast de Kaliningrad
  • Energy ; European part of Russia ; Kaliningrad ; Oblast ; Power station ; Seasonal variability ; Wind ; Wind energy
  • 1998
Soil degradation - diagnosis, appraisal and reversing measures
  • Agricultural land use ; Concept ; Desertification ; Land use ; Landslide ; Salinisation ; Soil ; Soil degradation ; Soil erosion ; Soil properties ; Water erosion ; Wind erosion
  • Part I of this volume I with 6 chapters : soil functions and land quality indicators; land resources information systems for decision-making; soil alteration by climate change; water and wind erosion; humus degradation and nutrient depletion
  • 1998
Les étapes du développement et les perspectives de l'énergétique éolienne en Inde
  • Electricity ; Energy ; Energy resources ; Energy source ; India ; Renewable energy ; Renewable resources ; Wind ; Wind energy
  • 1998
La photographie aérienne sous cerf-volant. Une technique performante avec la visée vidéo
  • Aerial photography ; Archaeology ; Arid area ; Remote sensing ; Research technique ; Wind ; Wind speed
  • 1998
The effect of turbulent flow structures on saltation sand transport in the atmospheric boundary layer
  • Aeolian features ; Aeolian transport ; Atmospheric circulation ; Niger ; Sahel ; Semi-arid area ; Tropical zone ; Turbulence ; Wind erosion ; Wind speed
  • 1998
Aeolian transport of sediment on a beach during and after rainfall, Wilwood, NJ, USA
  • A field investigation was conducted 9 March 1994 on a dissipative beach to compare wind characteristics and aeolian transport during and after a light rain, at Wildwood, New Jersey. The amount of sand trapped at Wilwood during rainfall is relatively
  • high when compared to many previous studies on beaches in the absence of rain. The great length of the beach as a source area, combined with parallel or oblique winds are significant in increasing rates of sediment transport.
  • 1998
Cyclones tropicaux, tempêtes tropicales et ouragans
  • Atmospheric disturbance ; Atmospheric dynamics ; Catastrophe ; Climatology ; Precipitation ; Tropical cyclone ; Tropical zone ; Wind
  • 1998