Variations in rainfall change the appearance of the Caspian Sea as the
seasons change. This image sequence from the Sea-viewing Wide Field-of-view Sensor
(SeaWiFS) shows sediment brightening the water of the Caspian’s northern section.
The Volga River, which enters from the upper lefthand side of this image, is the
largest source of fresh water to the sea. To the right the Kaydak Salt Flat dries
out from June to November.
The Caspian is home to the sturgeon, a fish which supplies the world
with caviar. This region also has extensive oil reserves. which are just now
being fully explored.
Image courtesy the SeaWiFS Project,
NASA/Goddard Space Flight Center, and ORBIMAGE
A hazy plume drifted over the northern end of the Caspian Sea in early April 2008. The translucent plume swirling over the water contrasts with the nearby opaque white clouds. The plume might result partly from smoke from springtime agricultural fires in farmland north of the sea.