TES satellite instrument gives new insight into water cycle

Research using NASA satellite measurements has given scientists a better understanding of what happens to rain and snow that falls on land—how much runs off into rivers, lakes and aquifers; how much plants use; and how much simply evaporates. Among the new findings: plants around the world use less water than previous studies had indicated, and most freshwater passes more rapidly through soil than previously thought, with less exposure to the nutrients and contaminants contained there.

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