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NASA Satellite Measures Human Impact in Water Storage

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To investigate humans’ impact on freshwater resources, scientists have now conducted the first global accounting of fluctuating water levels in Earth’s lakes and reservoirs – including ones previously too small to measure from space. Scientists used these height measurements to study 227,386 water bodies over 22 months and discovered that, from season to season, the water level in Earth’s lakes and ponds fluctuate on average by about 8.6 inches (0.22 m). At the same time, the water level of human-managed reservoirs fluctuate on average by nearly quadruple that amount – about 34 inches (0.86 m).

For further reading: https://www.nasa.gov/feature/goddard/2021/nasa-scientists-complete-first-global-survey-of-freshwater-fluctuation

Music: "Cycle of the Moon," "Domestic Idyll," Universal Production Music

Video credit: NASA's Goddard Space Flight Center/Scientific Visualization Studio
Ryan Fitzgibbons (USRA): Producer, Editor
Sarah Cooley (Stanford University): Scientist
Trent Schindler (USRA): Visualizer

This video can be freely shared and downloaded at https://svs.gsfc.nasa.gov/13824. While the video in its entirety can be shared without permission, some individual imagery provided by pond5.com and is obtained through permission and may not be excised or remixed in other products. Specific details on stock footage may be found here https://svs.gsfc.nasa.gov/13824. For more information on NASA’s media guidelines, visit https://www.nasa.gov/multimedia/guidelines/index.html.

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Category
Tech
Tags
NASA, ICESat-2, water
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