ABSTRACT The discovery of numerous debris discs around white dwarfs (WDs) gave rise to extensive study such and their role in polluting WDs, but the formation evolution these is not yet well understood. Here, we aeolian (wind) erosion solids WD discs. Aeolian a destructive process that plays key shaping properties size distribution planetesimals, boulders, pebbles gaseous protoplanetary Our ana...

The interaction of wind and water in semiarid and arid areas usually leads to low-frequency flash flood events in desert rivers, which have adverse effects on river systems and ecology. In arid zones, many aeolian dune-fields terminate in stream channels and deliver aeolian sand to the channels. Although aeolian processes are common to many desert rivers, whether the aeolian processes contribut...

risk assessment of soil erosion, one of the most important land degradation problems worldwide, is very essential for land and water resources management, and development of soil conservation methods. in the present study, the temporal changes of soil erosion risk were assessed from 1987 to 2010, based on the revised universal soil loss equation (rusle) using remote sensing (rs) and geographic ...

[1] The geologic history of Crater Terby is developed through geomorphic and stratigraphic analyses within the regional context of the Hellas basin. Terby exhibits 2-km-thick sequences of layers that consist of repetitive, subhorizontal and laterally continuous beds. The layers are predominantly fine-grained as indicated by their ease of aeolian erosion, although a few consolidated layers weath...

Desertification is a worldwide concern and the assessment of aeolian desertification has become one hotspot in global ecosystem research. In this paper, hyperspectral data acquired from modular OMIS-I imaging spectrometer, combined with ETM data and field survey data, was used to assess the aeolian desertification in Korqin Sand, Inner Mongolia, China by pixel-level. The results indicated that ...

Sand drift erosion is common on aeolian landforms, particularly in the Gobi desert where sand often quite strong. can lead to many types of hazards, including severe crop loss, structural damage buildings or infrastructure, and abrasion soil clay components that contribute production fine particulate matter. This article combines flow model with solid particles simulate process a variety enviro...

The basis of emission assessment at the Open Pit "Milojević Brdo" is to define dust distribution depending on wind influence and emitters. This paper presents data for equipment engaged open pit. Through an analytical approach, total emitted by mining aeolian erosion in area pit was determined. results this analysis represent a prediction state impact environment during exploitation process

The western Canadian Arctic is identified as an area of potentially significant global warming. Thawing permafrost, sea level rise, changing sea ice conditions and increased wave activity will result in accelerated rates of coastal erosion and thermokarst activity in areas of ice-rich permafrost. The Yukon Coastal Plain is widely recognized as one of the most ice-rich and thaw-sensitive areas i...