The colour changes become common in the spring and early summer due to seasonal precipitation and climate patterns, Nasa said.
Spring is the wettest season in north western Iran, with rainfall usually peaking in April and snow on nearby mountains also melts.
The combination of rain and snowmelt sends a surge of fresh water into Lake Urmia in April and May sending salt levels down, but by July, the influx of fresh water has tapered off and lake levels begin to drop.
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16 march 2017 , 20:50 . has been previewed for 24345 times