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Latest Soil physics Stories

2014-05-12 08:37:38

The Decagon Devices MPS-6 Matrix Water Potential Sensor uses Ceramic discs to take long term and accurate soil moisture measurements in any environment. PULLMAN, Wash., May 12, 2014 /PRNewswire/ -- The Decagon Devices MPS-6 Matric Water Potential Sensor uses ceramic discs and a six-point water potential calibration to take soil water potential measurements across the plant available water range in almost any environment. The Decagon Devices MPS-6 matric water potential sensor...

Impact Of El Niño On Continental Evaporation
2014-01-22 12:05:08

ESA As global temperatures gradually increase, more water is expected to evaporate into the atmosphere. But using satellite data, scientists have discovered that El Niño-induced droughts have caused global declines in evapotranspiration despite rising temperatures. Terrestrial evaporation, or evapotranspiration, is the transfer of water from soil and vegetation into the atmosphere. It’s a critical component of the global water cycle and, in recent years, it has gained increased...

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2011-06-07 08:40:37

Findings could aid in the development of better technologies for hydraulic fracturing and other fluid extraction techniques from the earth When geologists survey an area of land for the potential that gas or petroleum deposits could exist there, they must take into account the composition of rocks that lie below the surface. Take, for instance, sandstone"”a sedimentary rock composed mostly of weakly cemented quartz grains. Previous research had suggested that compaction...

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2011-05-12 07:45:18

Western Europe's exceptionally dry spring is clear to see in maps generated using data from SMOS. While these maps offer an interesting view of the stark difference in soil moisture compared to a year ago, the data are also important for agricultural and hydrological applications. ESA's Soil Moisture and Ocean Salinity (SMOS) mission has been orbiting Earth for 18 months now, making global observations of the moisture held in the top layers of soil and salt in the surface waters of the...

2010-11-08 05:18:00

SANTA CLARA, Calif., Nov. 8, 2010 /PRNewswire/ -- High Speed Design Center (HSDC) and PacketMicro announced today that they are offering a family of handheld TDR BladeProbes and an impedance standard substrate to the US market. The high-bandwidth, fixed-pitch probe design enables accurate and repeatable impedance measurements for high-speed PCB development and manufacturing. "The BladeProbe offering provides the best combination of performance, accuracy and price," said Ben Chia, HSDC...

2010-08-02 17:14:33

A simple and inexpensive demonstration of soil water retention and field capacity Using little more than PVC rings, a trashcan, and a scale, students can literally get a feel for soil water retention and field capacity, concepts that are important and useful in fields from farming to engineering. The demonstration, developed by Adam Howard, Drs. Josh Heitman and Dan Bowman of North Carolina State University, was designed to illustrate concepts that can be difficult for students to visualize...

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2010-04-25 08:37:04

Agricultural Research Service (ARS) scientists are helping U.S. Nuclear Regulatory Commission (NRC) experts model the movement of radioactive materials in the soil. Their findings can be used to fine-tune the risk assessment studies that are an essential component in the development of commercial nuclear facilities. Soil scientists Yakov Pachepsky, Timothy Gish and Andrey Guber all work in the ARS Animal and Natural Resources Institute in Beltsville, Md. The team set up their study at the...

2009-10-02 16:26:00

WASHINGTON, Oct. 2 /PRNewswire-USNewswire/ -- The Honorable Jo-Ellen Darcy was sworn in today as the U.S. Army's 11th Assistant Secretary of the Army for Civil Works (ASA(CW)) in a Pentagon ceremony. Secretary of the Army John McHugh conducted the swearing-in ceremony. "I am tremendously honored to have this opportunity to serve as the Assistant Secretary of the Army for Civil Works," said Darcy. "America is faced with many challenges in how to best conserve, protect, enhance and use...

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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...


Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.