23 Feb '12, 11pm

The Aral Sea, Before the Streams Ran Dry [image] #NASA

The Aral Sea, Before the Streams Ran Dry [image] #NASA

It was once the fourth largest lake in the world. Fed primarily by snowmelt and precipitation from faraway mountains, the Aral Sea supported extensive fishing communities and a temperate oasis in a mostly arid region of Kazakhstan and Uzbekistan. But in the 1950s and 60s, the government of the Soviet Union launched projects that diverted the region’s two major rivers—the Syr Darya and the Amu Darya. The dams, canals, and other water works were built in order to transform the desert into agricultural fields for cotton and other crops. The Aral Sea has been slowly disappearing ever since. An Argon reconnaissance satellite acquired this image of the Aral Sea on August 22, 1964, before the drop in water levels altered the shoreline and devastated surrounding communities. This inland “Sea of Islands” was home to more than a thousand of them. Vozrozhdeniye, translated as “renais...

Full article: http://earthobservatory.nasa.gov/IOTD/view.php?id=77193&s...

Tweets

Dust over the Arabian Sea [image] #NASA

Dust over the Arabian Sea [image] #NASA

earthobservatory.nasa.gov 24 Feb '12, 10pm

Dust plumes stretched southward over the Arabian Sea in late February 2012. The Moderate Resolution Imaging Spectroradiome...

Mackenzie Bay, Antarctica [image] #NASA

earthobservatory.nasa.gov 22 Feb '12, 11pm

Off the northeastern edge of Antarctica’sAmery Ice Shelf lies Mackenzie Bay, which was painted with a ghostly blue-green m...

Iceberg shards & ghostly tendrils stream from a...

earthobservatory.nasa.gov 23 Feb '12, 2am

Off the northeastern edge of Antarctica’s Amery Ice Shelf lies Mackenzie Bay, which was painted with a ghostly blue-green ...

Oldest Arctic Sea Ice is Disappearing [image] #...

earthobservatory.nasa.gov 29 Feb '12, 11pm

A new study by NASA scientist Joey Comiso has found that the oldest and thickest Arctic sea ice is disappearing at a faste...

Snow and Volcanoes on Kamchatka : Image of the ...

earthobservatory.nasa.gov 26 Feb '12, 9am

Besides bordering the Pacific Ocean, the east coast of Eurasia and the west coast of the Americas have something in common...

Lake Fitri, Chad [image] #NASA

earthobservatory.nasa.gov 19 Feb '12, 11pm

Lake Fitri is an endorheic or “terminal” lake in the southern Sahara Desert. Deserts get so little rainfall that the river...

Snow and Volcanoes on Kamchatka [image] #NASA

earthobservatory.nasa.gov 25 Feb '12, 11pm

Besides bordering the Pacific Ocean, the east coast of Eurasia and the west coast of the Americas have something in common...

Guam [image] #NASA

earthobservatory.nasa.gov 18 Feb '12, 11pm

Guam has two seasons: wet (June to December) and dry (January to June), and ALI acquired this image during the transition ...

The ice in the Arctic is getting younger, so mo...

earthobservatory.nasa.gov 29 Feb '12, 11pm

A new study by NASA scientist Joey Comiso has found that the oldest and thickest Arctic sea ice is disappearing at a faste...