Field water loss research. Agricultural engineer (on ladder) and hydrologic technician determining the water loss from a field, by measuring the sensi
Field water loss research. Agricultural engineer (on ladder) and hydrologic technician determining the water loss from a field, by measuring the sensible heat flux with a large-aperture scintillometer (upper centre). The sensible heat flux is the amount of energy heating a surface without evaporating a liquid from it. This research is part of ongoing studies to preserve the Ogallala, one of the world's largest aquifers, an underground layer of water-bearing permeable rock, in the Great Plains of the USA.
Size: 3403px × 5161px
Photo credit: © PEGGY GREB/US DEPARTMENT OF AGRICULTURE/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
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