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Aquifers/Groundwater

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002 How Water Moves Through Soil. Ability of Sand, Silt, and Clay Particles to Conduct Water. Soil is a Filter: Annotated. CK-12 Foundation. Groundwater Study Guide. This study guide is designed to help you and your students begin thinking about groundwater - where it comes from, why it's important, and how it can be conserved and protected.

Groundwater Study Guide

It includes a brief overview, glossary and classroom activities. Visit the DNR site for additional information on groundwater education (Leaves EEK!). The entire Groundwater Study Guide: Groundwater Wisconsin's Buried Treasure Study Guide (PDF, 2.01 MB) Activity Guide, 32 Pages plus worksheets, ? 2006. Well Well Well activity. Groundwater is Cool. Pumped Dry: The Global Crisis of Vanishing Groundwater - Desert Sun. A drying shame: With the Ogallala Aquifer in peril, the days of irrigation for western Kansas seem numbered.

The prairie wind buffeted Brant Peterson as he stood in a half-dead field of winter wheat.

A drying shame: With the Ogallala Aquifer in peril, the days of irrigation for western Kansas seem numbered

In front of him, a red-winged blackbird darted in and out of a rippling green sea of healthy wheat. Behind him, yellowed stalks rotted in the ground. The reason for the stark contrast was buried 600 feet under Peterson’s dusty boots: Only part of the field — the thriving part — had been irrigated by water pumped at that depth from the ancient Ogallala Aquifer, one of the largest underground sources of fresh water in the world. “If not for irrigation, that whole field would look like this,” Peterson said, nudging the dead wheat with the toe of his boot. But irrigation soon could end on Peterson’s southwest Kansas farm. Three of his wells are already dry. Within five years, Peterson estimates, he likely won’t be able to irrigate at all. Pumped beyond limits, many U.S. aquifers in decline.

SUBLETTE, Kansas – Just before 3 a.m., Jay Garetson’s phone buzzed on the bedside table.

Pumped beyond limits, many U.S. aquifers in decline

He picked it up and read the text: “Low Pressure Alert.” He felt a jolt of stress and his chest tightened. He dreaded what that automated message probably meant: With the water table dropping, another well on his family’s farm was starting to suck air. Soil Properties that affect Groundwater. Porosity The shape and arrangement of soil particles help determine porosity.

Soil Properties that affect Groundwater

Porosity or pore space is the amount of air space or void space between soil particles. April: Soils Clean and Capture Water. Water Movement in Soil. Groundwater Contamination. Groundwater Contamination. Land and People: Finding a Balance. Groundwater - flash animated diagram. Montana's Ground-Water Information Center (GWIC) USGS Groundwater Depletion study of Aquifer decline in the United States. The Ogallala aquifer and other aquifers produce about one-third of america’s corn, wheat, alfalfa and other crops that feed both people and animals.

USGS Groundwater Depletion study of Aquifer decline in the United States

They are being depleted rapidly and most wont’ be recharged until after the next ice age. MBMG Web Mapping Application. Montana's Ground-Water Information Center (GWIC) Montana's Ground-Water Information Center (GWIC) Issue.

Montana's Ground-Water Information Center (GWIC)

Sustainability: Water - The Ogallala Aquifer. USGS Fact Sheet 2009-3057: California’s Central Valley Groundwater Study: A Powerful New Tool to Assess Water Resources in California’s Central Valley. Competition for water resources is growing throughout California, particularly in the Central Valley.

USGS Fact Sheet 2009-3057: California’s Central Valley Groundwater Study: A Powerful New Tool to Assess Water Resources in California’s Central Valley

Since 1980, the Central Valley’s population has nearly doubled to 3.8 million people. It is expected to increase to 6 million by 2020. Statewide population growth, anticipated reductions in Colorado River water deliveries, drought, and the ecological crisis in the Sacramento–San Joaquin Delta have created an intense demand for water. Tools and information can be used to help manage the Central Valley aquifer system, an important State and national resource. The U.S. New NASA data show how the world is running out of water. The world’s largest underground aquifers – a source of fresh water for hundreds of millions of people — are being depleted at alarming rates, according to new NASA satellite data that provides the most detailed picture yet of vital water reserves hidden under the Earth’s surface.

New NASA data show how the world is running out of water

Twenty-one of the world’s 37 largest aquifers — in locations from India and China to the United States and France — have passed their sustainability tipping points, meaning more water was removed than replaced during the decade-long study period, researchers announced Tuesday. Thirteen aquifers declined at rates that put them into the most troubled category. The researchers said this indicated a long-term problem that’s likely to worsen as reliance on aquifers grows. If You Think the Water Crisis Can't Get Worse, Wait Until the Aquifers Are Drained. Aquifers provide us freshwater that makes up for surface water lost from drought-depleted lakes, rivers, and reservoirs.

If You Think the Water Crisis Can't Get Worse, Wait Until the Aquifers Are Drained

We are drawing down these hidden, mostly nonrenewable groundwater supplies at unsustainable rates in the western United States and in several dry regions globally, threatening our future. We are at our best when we can see a threat or challenge ahead. If flood waters are rising, an enemy is rushing at us, or a highway exit appears just ahead of a traffic jam, we see the looming crisis and respond. We are not as adept when threats—or threatened resources—are invisible.

The Ogallala Aquifer: Saving a Vital U.S. Water Source. On America’s high plains, crops in early summer stretch to the horizon: field after verdant field of corn, sorghum, soybeans, wheat and cotton.

The Ogallala Aquifer: Saving a Vital U.S. Water Source

Framed by immense skies now blue, now scarlet-streaked, this 800-mile expanse of agriculture looks like it could go on forever. It can’t. The Ogallala Aquifer, the vast underground reservoir that gives life to these fields, is disappearing. Groundwater depletion, USGS water science. Groundwater is a valuable resource both in the United States and throughout the world. Where surface water, such as lakes and rivers, are scarce or inaccessible, groundwater supplies many of the hydrologic needs of people everywhere. In the United States. It is the source of drinking water for about half the total population and nearly all of the rural population, and it provides over 50 billion gallons per day for agricultural needs. Water Data Library - Groundwater Level Reports.

Study: Third of Big Groundwater Basins in Distress. About one third of Earth's largest groundwater basins are being rapidly depleted by human consumption, despite having little accurate data about how much water remains in them, according to two new studies led by the University of California, Irvine (UCI), using data from NASA's Gravity Recovery and Climate Experiment (GRACE) satellites. This means that significant segments of Earth's population are consuming groundwater quickly without knowing when it might run out, the researchers conclude. The findings are published today in Water Resources Research.

"Available physical and chemical measurements are simply insufficient," said UCI professor and principal investigator Jay Famiglietti, who is also the senior water scientist at NASA's Jet Propulsion Laboratory in Pasadena, California. Episode 640: The Bottom Of The Well : Planet Money. Pistachio trees in California's drought-stricken Central Valley. Stacey Vanek Smith / NPR hide caption toggle caption Stacey Vanek Smith / NPR.