نتایج جستجو برای: wind sediments
تعداد نتایج: 111368 فیلتر نتایج به سال:
For the study of field wind erosion and the design and evaluation of wind erosion control techniques, detailed observations of soil particle transport and vertical destribution of eroded soil particles are needed. The objectives of this study were: 1) To describe one device for soil transport particle measurement, i. e. the BSNE sediment catcher and 2) To assess vertical distribution of wind–er...
The research on wind-driven rain (WDR) transport process of the splash-saltation has increased over the last twenty years as wind tunnel experimental studies provide new insights into the mechanisms of simultaneous wind and rain (WDR) transport. The present study was conducted to investigate the efficiency of the BEST® sediment traps in catching the sand particles transported through the splash...
the main objective of this study is evaluation and wind statistic analysis, investigation of wind regime role on discharge flow and direction of sediments transferring in the case study. thus, sabzevar station anemometer data duration 10 years statistic period (1996-2005) analyzed. sand drift potential amount of study area is 160.9 v.u and result drift directionâ is west as well as sand flux is...
For the study of field wind erosion and the design and evaluation of wind erosion control techniques, detailed observations of soil particle transport and vertical destribution of eroded soil particles are needed. The objectives of this study were: 1) To describe one device for soil transport particle measurement, i. e. the BSNE sediment catcher and 2) To assess vertical distribution of wind–er...
Coastal and inland dune sands in desert environments are compositionally and texturally controlled by physical and chemical processes such as the wind action, marine/fluvial processes, weathering, air temperature and precipitation. The objectives of this research are study of sedimentological characteristics, calculation of CIA in the Aeolian sediments and classification of sand dunes in the Ya...
Introduction Nebkhas stabilized aeolian landforms in arid and semiarid areas which have been formed due to the deposition of sediments around trees, shrubs and bushes (Cooke et al, 2006:61). In addition to the wind pattern, sand resources and other natural factors like topography, rainfall and depth of the groundwater play a role in the formation and development of this landform (Melton, 194...
However, they played an important role in the understanding of soil properties and land use planning, and came later to provide a useful basis for national soil mapping. The geological surveys gave rise to the so-called Quaternary and Petrological Maps, the first one being published 1857. The maps show mineralogy and texture and genesis of the parent material, e.g. texture of glacial till and w...
1 We present analyses of the noise wavefield in the vicinity of VIRGO, 2 the Italy-France gravitational wave observatory located close to Pisa, 3 Italy, with special reference to the vibrations induced by a nearby 4 wind park. The spectral contribution of the wind turbines is investi5 gated using (i) on-site measurements, (ii) correlation of spectral am6 plitudes with wind speed, (iii) directio...
Riverine and wind-borne materials transferred from Patagonia to the SW Atlantic exhibit a homogeneous rare earth element (REE) signature. They match well with the REE composition of Recent tephra from the Hudson volcano, and hence this implies a dominance of material supplied by this source and other similar Andean volcanoes. Due to the trapping effect of proglacial and reservoir lakes, the lar...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید