Evapotranspiration (ET) is the sum of water evaporation from the land surface and its transpiration, or movement, through vegetation. ET measurements are useful in monitoring and assessing water availability, drought conditions, and crop production. An increase in available energy from the Sun through reductions in cloud cover, seasonal lengthening of daylight, and similar variables favors ...
True-color image of the Dead Sea (the dark body of water) and salt evaporation ponds (the green/blue green rectangular features at the southern end of the sea). This image was acquired on , by the Multi-Spectral Instrument (MSI) aboard the ESA (European Space Agency) Sentinel-2A and -2B satellites. Explore this image in Worldview.
Glacier Power is a curriculum supplement developed by NASA’s Alaska Satellite Facility Distributed Active Archive Center (ASF DAAC). Glossary of Terms Ablation, Ablation zone Processes (especially melting) by which a glacier loses ice and snow: melting, evaporation, calving, and erosion. The area of a glacier where ablation occurs. Accumulation, Accumulation zone Process (especially snowfall ...
The accumulation (input) zone is where a glacier gains snow and ice through snowfall and compression. Ice begins to flow like a conveyor belt, driven by gravity and ever mounting snows. In the lower region or ablation (output) zone, the glacier loses ice through melting and evaporation. Older ice is carried down to greater and greater depth. An equilibrium line divides the two areas. This spot ...
True-color image of the Cauchari-Olaroz Lithium Mine in Jujuy Province, Argentina. In the center of the image are bright green/cyan evaporation ponds with salars, or salt flats, to the north and south of the ponds. Lithium brine is pumped from the salars into the evaporation ponds. Solar evaporation concentrates the lithium brine in the ponds, then the concentrated lithium brine is processed ...