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Latest Water cycle Stories

9cd95ea8e09c8463238eacb21b0569661
2010-04-16 13:23:42

Evidence that the world's water cycle has already intensified is contained in new research to be published in the American Journal of Climate. The stronger water cycle means arid regions have become drier and high rainfall regions wetter as atmospheric temperature increases. The study, co-authored by CSIRO scientists Paul Durack and Dr Susan Wijffels, shows the surface ocean beneath rainfall-dominated regions has freshened, whereas ocean regions dominated by evaporation are saltier. The paper...

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2009-12-21 08:50:00

Earth has a limited amount of water that recycles itself in what is called the "Ëœwater cycle'. Climate change, weather and human life are highly affected by changes in this continuous, interconnected cycle. Observing and monitoring the key variables governing the global water cycle is essential to our understanding of the Earth's climate, forecasting our weather, predicting floods and droughts, and improving water management for human use. Recent advances in Earth observation (EO)...

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2009-06-20 15:33:28

Researchers trace a problem with a key climate model to its hyrdrology scheme and find a simpler scheme keeps simulations in line with real-world observations Imagine a climate model as a black box. You put something in, you get something out. But what happens when the output is completely unexpected? "If you don't get the results you expect, that's when you start to ask why," said climate modeler Peter Lawrence from the University of Colorado at Boulder's Cooperative Institute for Research...

d7896d1d07c0d4e312eb79204aea1fb11
2009-01-12 11:00:00

Part of the changing climate, earlier spring snowmelt could affect hydropower generation, agriculture Soot from pollution causes winter snowpacks to warm, shrink and warm some more. This continuous cycle sends snowmelt streaming down mountains as much as a month early, a new study finds. How pollution affects a mountain range's natural water reservoirs is important for water resource managers in the western United States and Canada who plan for hydroelectricity generation, fisheries and...

b0bc64fd9694b65627504899778978c4
2007-12-03 09:51:00

From the deserts of the American southwest to the pine forests of the Deep South, drought-weary residents have one thing on their minds: "I wish it would rain!" Technically, what they should be wishing for is "more streamflow," says Dr. Ashutosh Limaye, a hydrologist at the National Space Science and Technology Center (NSSTC) in Huntsville, Alabama. Streamflow is a term used by water management specialists to mean, very simply, the amount of water in streams and rivers. Areas of drought have...

63e42b18efc95424709a4174a6aaea69
2007-03-05 11:05:00

People have lived with rain and snow for millennia, and scientists have studied weather for more than a century. You might think that, after all that time, we would have precipitation pretty much figured out. And you'd be wrong. "It's amazing how much we don't know about global patterns of rain and snow," says Walt Petersen, an atmospheric scientist with the National Space Science and Technology Center (NSSTC) and the University of Alabama (UAH) in Huntsville. For instance, how much snow...

2007-02-01 09:00:43

U.S. scientists say they've determined rain evaporation and continental convection play an important part in the tropical water cycle. The researchers, led by John Worden at the National Aeronautics and Space Administration's Jet Propulsion Laboratory, analyzed global measurements of the isotopic composition of water vapor from NASA's Tropospheric Emission Spectrometer to determine the processes driving the tropical hydrological cycle. The scientists say they discovered rainfall...

6aedb6f079693a2b450f72774d1dc6a31
2005-10-17 16:19:26

NASA -- A NASA study is offering new insight into how the Earth's water cycle might be influenced by global change. In recent years, scientists have warned that the water cycle may be affected by temperature changes, as warmer temperatures can increase the moisture-holding capacity of air. The global water cycle involves the transfer of water molecules between the Earth's land masses, cryosphere, oceans and atmosphere. It's a gigantic system powered by the sun, fueling a continuous exchange...


Latest Water cycle Reference Libraries

22_319d33a1f9f347feb9c006816dbc1357
2009-07-06 17:58:20

The water cycle (or hydrologic cycle) describes the continuous movement of water above, below, and on the planet. Since the water cycle is in fact a "cycle", there is no beginning or end. Water exists in three states: liquid, vapor, and ice. Although the balance of water on our planet is fairly constant, individual water molecules may come and go. The water cycle is driven by the sun. The sun heats the oceans and allows water to evaporate into the air. The sun also heats snow and ice which...

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Word of the Day
conjunto
  • A style of popular dance music originating along the border between Texas and Mexico, characterized by the use of accordion, drums, and 12-string bass guitar and traditionally based on polka, waltz, and bolero rhythms.
The word 'conjunto' comes through Spanish, from Latin coniūnctus, past participle of coniungere, to join together; see conjoin