Posts Tagged ‘ rainfall ’

NASA Water Cycle Video

June 4, 2011
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Here’s a nice animation showing the water cycle: Follow the red dot to track the water as evaporates, forms into clouds, condensates, rains down, gets absorbed into ground water, seeps into rivers and lakes, flows down into the ocean, and evaporates again to complete the cycle.
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Atmospheric Moisture

June 3, 2011
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Atmospheric Moisture

We are working on our movie for the D.R.I.P.S. presentation in Paris this summer. To really explain how our invention would work, we need to give a few definitions and provide some physics background. So this post is a collection of useful concepts and definitions about water in the air. The Hydrologic Cycle This...
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Qualitative and Quantitative Evaluation

November 28, 2010
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EDF Evaluation Question: “Please estimate your project benefits for the plant and people, demonstrating its sustainable potential.” and “If a qualitative evaluation is possible, please prescribe the impact of your project, listing your sources and the evaluation tool applied.” Answer: D.R.I.P.S. project is designed to reduce Water Footprint, Preserve Raw Materials, and add to...
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“The Big Potential of Small Farms”—Scientific American Article

November 24, 2010
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In September 2005 issue of Scientific American Journal, there was an article: “The Big Potential of Small Farms” by Paul Polak (August 22, 2005). Paul Polak started IDE—International Development Enterprises—in 1981 to come up with good solutions to water problems. The article describes IDE’s work and the problems they are trying to solve. There’s...
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Map of World Rainfall

November 21, 2010
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Map of World Rainfall

This is map of total rainfall around the world. Source: NOAA.
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Evapotranspiration

November 21, 2010
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Information on evapotranspiration from Wikipedia: “Potential evapotranspiration supplements the measurement of rainfall in providing a scientific measurement-based definition of a desert. The water budget of an area can be calculated using the formula P − PE ± S, wherein P is precipitation, PE is potential evapotranspiration rates and S is amount of surface storage...
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