Danube Delta Geomorphology

Danube Delta, located in the NW Black Sea (between 44 ˚ 46'00 "wide. N - Bugeac platform, 45 ˚ 40'00" wide. N and 28 ˚ 40'24 "long. E - North Dobrogea orogen, and 29 ˚ 40'50 "long.'s - the Black Sea platform), representing a relief Geomorphologically accumulation developed at the mouth of the Danube in the Black Sea. (Coteţ P., 1973, Gh Romanescu, 1995)
According to FAO classification (SOTER - Procedure Manual, 1993) [5], the Danube Delta is included under regional landforms type wet lowland river on alluvial deposits with a high degree of fragmentation.


Delta is characterized by positive landforms called levees and negative landforms represented by depressions filled with water (lakes). Currently, Delta is in the form of a flat with a slope of 0.006 ‰, crossed by a web of water: the river arms, channels and streams, punctuated by lakes and backwaters. Differences in elevation above sea level, are 8-10 m in the levees and -2 to -4 m in the lake depressions.

Danube Delta territory is divided into two geographical subregions, namely: Delta itself occupying an area of 4250 km2, located between the river arms and Razim area, with an area of  990 km2. The physico-geographical Delta arms across the river is divided into two natural sub-delta and delta river sea.

River Delta covers over 65% of the total area of the delta and extends to Ceatalul Ismail, to downstream until Letea and Caraorman Periprava line (on Chilia) - Crisan (Sulina arm) - Ivancea (Holy arm . George) - Crasnicol - patties. The Danube Delta is sub-divided into several natural units such as: Depression Sireasa, sont-Storm Depression Depression Pardina Depression-Merhei Matiţa, Grindul Chilia Grindul Stipoc in evolutionary Tataru in evolutionary Babina in evolutionary Cernovca Depression Litcov, Erenciuc Depression, Depression-Buhaiova Rosca, Tulcea Meadow Dranov-Dunavăţ Murighiol and Depression, etc..

Delta Ocean less than 35% of the Danube Delta area, east of the line-Crisan-Ivancea Periprava-Crasnicol-perishable. In this sub-region, as in the river delta, we find areas with positive and negative relief, but unlike the first subregion, the bottom of the depression is below sea level in most cases.