Media Information

 
 
 
Collection:
NASA Scientific Visualization Studio Collection
Title:
Aral Sea Evaporation (WMS)
Instrument:
Landsat-7/ETM
Instrument:
Landsat-1/MSS
Instrument:
Landsat-4/MSS
Description:
A Landsat-7 image of the northern part of the Aral Sea, taken on July 29, 2000.
Abstract:
The Aral Sea is actually not a sea at all, but an immense fresh water lake. In the last thirty years, more than sixty percent of the lake has disappeared because much of the river flow feeding the lake was diverted to irrigate cotton fields and rice paddies. Concentrations of salts and minerals began to rise in the shrinking body of water, leading to staggering alterations in the lake's ecology and precipitous drops in the Aral's fish population. Powerful winds that blow across this part of Asia routinely pick up and deposit the now exposed lake bed soil. This has contributed to a significant reduction in breathable air quality, and crop yields have been appreciably affected due to heavily salt laden particles falling on arable land. This series of Landsat images taken in 1973, 1987 and 2000 show the profound reduction in overall area at the north end of the Aral, and a commensurate increase in land area as the floor of the sea now lies exposed.
Completed:
2005-02-15
Credit:
*Please give credit for this visualization to*
NASA/Goddard Space Flight Center
Scientific Visualization Studio
Studio:
SVS
Animator:
Joycelyn Thomson (Lead)
Animator:
Horace Mitchell
Scientist:
Darrel Williams (NASA/GSFC)
Series:
WMS
Data Collected:
1973/05/29, 1987/08/19, 2000/07/29
DEPC Metadata:
*DEPC Metadata* is available here.
Keywords:
DLESE
Keywords:
GCMD
Keywords:
Hydrology
Keywords:
Human geography
Keywords:
Agricultural science
Keywords:
EARTH SCIENCE
Keywords:
Biosphere
Keywords:
Human Dimensions
Keywords:
Hydrosphere
Keywords:
Chemical oceanography
Keywords:
Biology
Keywords:
Chemistry
Keywords:
Aquatic Habitat
Keywords:
Lakes
Keywords:
Environmental Impacts
Keywords:
Water Management
Keywords:
Habitat Conversion/Fragmenta tion
Keywords:
Irrigation
Keywords:
Surface Water
note:
More Information on this topic available at
stories/earthday2001 /index.html
Web Map Service:
*This product is available through our Web Map Service. Click here to learn more. [ http://svs.gsfc.nas…]*
facet_where:
Aral Sea
facet_where:
Goddard Space Flight Center (GSFC)
facet_when:
1973
facet_when:
July 29, 2000
facet_what:
Landsat
facet_what:
Earth
facet_what:
WMS
facet_when_year:
2000
facet_when_year:
1973
Animation Number:
3112
UID:
SPD-SCIVS-http://svs .gsfc.nasa.gov/vis/a 000000/a003100/a0031 12/aral_geo.20000729 -IMAGE
original url:

Aral Sea Evaporation (WMS)