Recently, in the Auerswald et al. (2015) comment on "Rainfall erosivity in Europe", 5 criticisms were addressed: i) the neglect of seasonal erosion indices, ii) the neglect of published studies and data, iii) the low temporal resolution of the data, especially of the maximum rain intensity, iv) the use of precipitation data instead of rain data and the subsequent deviation of the R-factor in Ge...

a Laboratoire de technologie écologique, Institut d’ingénierie de l’environnement, Faculté de l’environnement naturel, architectural et construit (ENAC), Station 2, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland. Ph. +41 (21) 693-8073; +41 (21) 693-5576; +41 (21) 693-5919; Fax. +41 (21) 693-8035. Email addresses: [email protected], [email protected], aless...

The area I refer to is a bit of country lying between two rivers with my headquarters as the centre. The country is fertile at both ends-, being fed by rivers. But the affected area is arid, the climate is hot and dry, and the soil consists mainly of conker and to a less extent of black clay and red earth. It is fed by rain and the people draw their water supply almost exclusively from rain-fed...

The current focus on renewable energy is driving installation of a growing number wind turbines. In recent years, efforts to improve power generation efficiency by using larger turbine blades have resulted in higher blade tip speeds. glass fiber reinforced plastic (GFRP) used for surfaces subject wear due particle impingement from wind, rain, and dust during long-term operation. As the mechanic...

Leading edge erosion (LEE) repairs of wind turbine blades (WTBs) involve infield application leading protection (LEP) solutions. The industry is currently aiming to use factory based LEP coatings that can applied the WTBs before they are shipped out for installation. However, one main challenges related these solutions choice a minimum length be in spanwise direction WTBs. Generally, coating su...

Soil erosion constitutes one of the main environmental and food security threats, derived from loss its productive capacity. With help remote sensing (RS), geographic information systems (GIS), a revised version universal soil equation (RUSLE), this research has mostly focused on measuring potential hazard water conservation ratio (SWCR) in El-Minia region Egypt. Based integration S2A images di...

Soil loss from dryland farms on the Columbia Plateau in Oregon and Washington (USA) results primarily from rain falling on frozen, cultivated soil. Soils are most susceptible to erosion when moldboard plowed, summer-fallowed, repeatedly rodweeded or cultivated, and fall planted to winter-wheat. These tillage practices are used because they help control weed and disease infestations and consiste...

Leading edge erosion on a wind turbine blade from Vindeby offshore farm is characterized by X-ray tomography, and air bubbles within the top coat are observed. Similar coating systems with almost without tested R&D Test Systems style whirling arm rain tester (RET) found to have different V–N curves. In general, slope of two curves was comparable. However, absolute performance value RET differs ...

The rain-induced fatigue damage in the wind turbine blade coating has attracted increasing attention owing to significant repair and maintenance costs. present paper develops an improved computational framework for analyzing induced by rain erosion. first presents extended stochastic field simulation model that considers different raindrop shapes (spherical, flat, spindle), sizes, impact angles...