NOTICE: The project that is the subject of this report was approved by the Governing Board of the National Research Council, whose members are drawn from the councils of the National Academy of ...
The U.S. Geological Survey used a drone last week to measure streamflows in the Roaring Fork and Colorado rivers. The crow-sized quadcopter buzzed 100 to 200 feet above the rivers, filming the water’s ...
Groundwater provides drinking water for millions of Americans and is the primary source of water to irrigate cropland in many of the nations most productive agricultural settings. Although the ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results