South Aral Sea Syr Darya, would be diverted in order to irrigate cotton and food crops in Kazakhstan and Uzbekistan. In 1986, due to an accelerated loss of water, the Aral Sea was split into northern and southern parts; the northern part is the current North Aral Sea. In 2007, the western basin had a salinity of 70 g/l and the eastern basin 100 g/l. Once the water level falls below the connecting channel (elevation 29 m), the salinities can be expected to diverge further. Under current conditions, the eastern basin may receive water from the Amu Darya in wet years, fluctuating in
Eustatic sea level Eustatic sea level The eustatic sea level is the distance from the center of the earth to the sea surface. An increase of the eustatic sea level can be generated by decreasing glaciation, slower spreading rates of the mid-ocean ridges or fewer mid-oceanic ridges. Conversely increasing glaciation, faster spreading rates or more mid-ocean ridges lead to a fall of the eustatic sea level. Changes in the eustatic sea level lead to changes in accommodation and therefore affect the deposition of sediments in marine environments. Eustatic (global) sea level refers to the sea level change of the volume of Earth’s oceans.