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Freshwater: A Precious Resource

Explore the importance of freshwater, its distribution, and the impact of water scarcity. Discover the water cycle, learn about global precipitation measurement, and find real-world applications for the data collected.

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Freshwater: A Precious Resource

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  1. Developed by the Global Precipitation Measurement mission Education and Public Outreach Team POC: Dorian Janney Dorian.w.Janney@nasa.gov Freshwater: A Precious Resource

  2. Blue Gold: Have the Next Resource Wars Begun?

  3. Our beautiful water world!

  4. Solid? Liquid? Gas?

  5. Freshwater vs. Saltwater How much of Earth’s water is freshwater? We will make a model of Earth’s freshwater. • Take the plastic cup, and imagine that the cup is a model of Earth’s surface. • Fill up ~ 75% with water. This represents how much of Earth’s surface is covered with water. • Take out one eye-dropper of water, and place it in the small medicine cup. This represents how much of Earth’s water is freshwater- ~ 2.5% • Take one drop of this water- this represents how much freshwater is easily accessible to us!

  6. Freshwater is a precious resource. http://ga.water.usgs.gov/edu/earthwherewater.html

  7. Where is all the water on Earth?

  8. Saltwater versus Freshwater

  9. “Show Me the Water” Show Me the Water video (2:49)

  10. Estimated Water Use in US Thermoelectric 49% Public Supply 11% Domestic 1% Irrigation 31% Other- 8%: Mining 1%, Industrial 4%, Aquaculture 2%, Livestock 1% From the American Water Works Assoc.

  11. Earth’s Water Cycle

  12. “A Tour of the Water Cycle” Follow a molecule of water as it makes its way through the water cycle.

  13. Precious Freshness Source: Journal Nature, Sept. 2010 Freshwater is not distributed evenly around the world. We have a lot of water on Earth, but some locations have too much, and other locations don’t have enough.

  14. Can’t we just make more water? We know the “recipe” for water- but we can’t make it. There is evidence that the water we have on Earth was created billions of years ago in space when supernovae stars exploded! It is pretty amazing to imagine that the explosion made in faraway stars actually ended up in your water glass. Water makes life as we know it possible, and as we look for the possibility of life on other planets, we are looking at locations that have water.

  15. Global Precipitation Measurement mission • We know that the water we drink mostly comes to us from precipitation. • How do we keep track of how much precipitation is falling around the world? • NASA has a satellite that is able to measure how much rain and snow is falling to Earth- and it can make these measurements all over the globe every three hours!

  16. Looking at the Data Here is an animation of how much precipitation was falling last week all over the world!

  17. “For Good Measure” video This is a short video that describes why we have a satellite to measures global precipitation.

  18. Want to Learn More? You can visit our “Precipitation Education” website to learn about the water cycle, weather and climate, technology, and the real-world applications for the data that GPM is collecting. https://pmm.nasa.gov/education/

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