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Title: Coastal dune systems on Ukrainian shores: modern tendencies of development
Authors: Vykhovanets, Galina V.
Citation: Sustainable waterfront and coastal developments in Europe: socioeconomics, technical and environmental aspects— International Conference EUROCOAST Fereration “LITTORAL
Issue Date: 1998
Keywords: the Black Sea
accumulative forms
aeolian process
Abstract: Coastal dunes are widely spread on sandy shore of the Black Sea within Ukraine. However, their dimensions are small. Usually they look like discontinuos or continuous ridge, 1-2 m high above the beach surface (maximum 5.8 m) and from 10 to 90 m wide in total. In their composition sand with coarseness 0.1-0.25 mm (up to 85%) prevails. The main reason of the small size is prevailing of winds blowing from the Land to the Sea, and original response of the complex landscape structure on sandy form surface to the action of winds of various velocities, directions and durations. 6 scenarios of coastal foredunes development were pointed out, depending on combination: of sediment supply and direction of the resulting vector of wind energy flow. The 6th scenario is the most spread one. According to it there is acute deficit of sediments and the average resulting vector is directed seaward. All scenarioes are described by aeolian drift factor. Space-time peculiarities of the action of aeolian factor and processes, and the character of wind impact to shore dune development are considered. The information obtained is necessary for optimal planning of economic activity, management and development of dune systems in order to preserve them.
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