Soil aeolian erodibility is the efficiency with which soil produces dust for a given meteorological forcing. Quantifying soil erodibility is crucial for forecasting dust events and the climatological distribution and forcing of dust. We use long term station observations and satellite indices of mineral dust to ascertain the role of regional topography, geomorphology, and hydrology in controlli...

1875-9637/$ see front matter 2009 Elsevier B.V. A doi:10.1016/j.aeolia.2009.07.002 * Corresponding author. Tel.: +1 208 220 6571; fax E-mail addresses: [email protected], jbsankey@hotm [email protected] (M.J. Germino), [email protected] (N.F. G 1 Tel.: +1 208 282 3285; fax: +1 208 282 4570. 2 Tel.: +1 208 345 1994; fax: +1 208 345 8353. Aeolian transport is an important contemporary geomorphic process ...

The greatest obstacle to soil erosion modelling at larger spatial scales is the lack of data on soil characteristics. One key parameter for modelling soil erosion is the soil erodibility, expressed as the K-factor in the widely used soil erosion model, the Universal Soil Loss Equation (USLE) and its revised version (RUSLE). The K-factor, which expresses the susceptibility of a soil to erode, is...

Introduction and Methods Cohesive sediments in marine and coastal environments are responsible for degrading water quality, influencing the cycling and availability of particle bound contaminants, and infilling navigable waterways. In spite of their significance to coastal environments, there are still major gaps in our understanding of many of the fundamental processes governing cohesive sedim...

Equations used to calculate erodibility in the Water Erosion Prediction Project soil erosion Ž . model WEPP are based on erodibility studies in the USA and may not function well in another Ž . region. This study was conducted to: i analyze erodibility and infiltration characteristics of some Ž . predominant soils of southern Spain, and ii test equations used to calculate interrill erodibility i...

The overall goal of this research is to compare the effects of woody and herbaceous vegetation on stream bank erosion. This chapter presents the third of three substudies that address the impact of vegetation on stream bank erosion. The goal of this study was to determine the erodibility of rooted stream bank soils and to evaluate the relative effects of vegetation type, root density, and freez...

the soil erodibility factor varies spatially according to variations of some soil properties on the surface. this study was carried out to compare spatial variability of the soil erodibility factor as estimated and measured using the usle. the study was conducted in an agricultural zone with an area of in 900 km2 in hashtrood, northwestern iran. in the study area, 36 square grids with a dimensi...

Internal erosion is known as the most important cause of dam failure after overtopping. It is important to improve the erosion resistance of the erodible soil by selecting an effective technique along with the reasonable costs. To prevent internal erosion of embankment dams the use of chemical stabilizers that reduce the soil erodibility potential is highly recommended. In the present study, a ...

Global atmospheric dust is simulated using DEAD (Dust Entrainment and Deposition model) in combination with the global scale Oslo CTM2 using meteorological data for 1996. Dust sources are calculated both using mean wind speeds with model resolution (T63) and sub-grid wind speeds. Different datasets are used to describe soil erodibility. We explain how the different assumptions on dust productio...

Overtopping, internal erosion, and piping are the main causes of accidents and failures of embankments for dams, lagoons, and levees. A key parameter in the failure of these structures is the erodibility of the soil materials used in construction of the embankments. The soil materials are typically constructed based on compaction specifications. The jet erosion test (JET) has been developed to ...