Navigation Links
Satellite data provide a new way to monitor groundwater in agricultural regions
Date:12/13/2010

rometric synthetic aperture radar, known as InSAR. It is a radar technique that measures the shape of the surface of Earth and can be used to track shape changes over time. Earth scientists often use InSAR to measure how much the ground has shifted after an earthquake.

While continuously orbiting, a satellite sends an electromagnetic wave down to the surface. The wave then bounces back up and is detected by the satellite. The properties of the wave tell scientists how far the wave traveled before it was reflected back. This distance is directly related to the position of the ground.

After the satellite completes a circle around the globe, it returns to the same location to send down another radar wave and take another measurement. Measurements are taken every 35 days and data collection can go on for years.

Compared to drilling wells for monitoring groundwater aquifers, using InSAR data would be much cheaper and provide many more data points within a given area. Traditional methods rely on wells that were not built with scientific data sampling in mind and their results can be inconsistent. Moreover, the number of wells drilled into any particular aquifer is much too small to be able to cover the entire groundwater system.

Hydrologists and regulatory bodies looking for more data to better understand their groundwater system could one day set policies requiring farmers to leave a patch of land clear for InSAR data collection. Furthermore, the technique could be used in agricultural regions anywhere in the world, even those that lack modern infrastructure such as wells.

"I think it really has potential to change the way we collect data to manage our groundwater," said Reeves.


'/>"/>

Contact: Louis Bergeron
louisb3@stanford.edu
650-725-1944
Stanford University
Source:Eurekalert  

Page: 1 2 3

Related biology news :

1. Satellites helping aid workers in Honduras
2. Value of satellites recognized for conserving wetlands
3. Small satellite takes on large thunderstorms
4. Satellite imagery shows fragile Wilkins Ice Shelf destabilized
5. ESA satellites focusing on the Arctic
6. ESA satellites flying in formation
7. New satellite data reveal impact of Olympic pollution controls
8. Satellites search out South Pole snowfields
9. New satellite techniques for looking at climate change
10. European satellites provide new insight into ozone-depleting species
11. DEIMOS joins MARS and its satellite of instruments on seafloor
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Satellite data provide a new way to monitor groundwater in agricultural regions
(Date:4/17/2014)... need to produce hydrogen sulfide in order to properly ... study from the Center for Craniofacial Molecular Biology at ... Professor Songtao Shi, principal investigator on the project, said ... governs the flow of calcium ions. The essential ions ... osteogenesis, or the creation of new bone tissue, and ...
(Date:4/17/2014)... of forests in the Amazon help create tinderbox ... rapid and widespread forest loss during drought years, ... show that forests in the Amazon could reach ... forest fires lead to large-scale loss of trees, ... professor of geography, Penn State. , "We documented ...
(Date:4/17/2014)... Indiana University researchers have detected new early-warning signs of ... discovery could have far-reaching implications for the diagnosis and ... over 25 million Americans. , "We had not expected ... such early stages," said Ann Elsner, professor and associate ... author of the study. "We set out to study ...
Breaking Biology News(10 mins):Drought and fire in the Amazon lead to sharp increases in forest tree mortality 2Drought and fire in the Amazon lead to sharp increases in forest tree mortality 3New technique detects microscopic diabetes-related eye damage 2New technique detects microscopic diabetes-related eye damage 3
... (Washington, DC) The American Society for Bone and ... scientific meeting in the world on bone and mineral ... research, technology and new clinical treatments in bone diseases ... year,s Annual Meeting, being held in Baltimore, MD USA, ...
... 2013, Cleveland: Cleveland Clinic,s 8th Annual Obesity Summit will bring ... 17, 2013, at the InterContinental Hotel and Bank of America ... the escalating obesity epidemic in the United States. ... every six children are obese. In addition to causing health ...
... been vilified for detrimental effects to water quality and fish ... "ecological and engineering resilience" to climate change in the Columbia ... Canadian journal Atmosphere-Ocean , looked at the effects of ... reaches of seven sub-basins of the Columbia River from 1950 ...
Cached Biology News:American Society for Bone and Mineral Research Annual Meeting Oct. 4-7 2Cleveland Clinic's 2013 Obesity Summit explores causes, prevention and treatment of obesity 2Dams provide resilience to Columbia River basin from climate change impacts 2
(Date:1/15/2014)... FALLS, N.Y., Jan. 15, 2014   Niagara Thermal Products ... selected by Buffalo BioBlower Technologies LLC ("B3") as the ... Phase 2 award from the Army Corps of Engineers.  ... that kills all biological contaminants and destroys VOCs and ...
(Date:1/15/2014)... 2014 Cynvenio, a cancer diagnostics company ... genomic analysis of tumor cells in the bloodstream, today ... cancer decision support application powered by CollabRx, Inc. ... genomic test, Therapy Finder will provide breast cancer patients ...
(Date:1/15/2014)... 2014 ­ RedBrick Health , a fast-growing leader ... announces that EmblemHealth , the New ... now providing the RedBrick Compass health assessment, combined with ... of its members. EmblemHealth is among the first health ...
(Date:1/15/2014)... , January 15, 2014 A study ... races on the Formula 1 track could help to tackle ... Applied Technologies (MAT), Stowhealth (a GP surgery based in Stowmarket) ... healthcare provider Simplyhealth. Telemetry technology, which is inspired ...
Breaking Biology Technology:Niagara Thermal Products LLC Selected as Critical Supplier for Buffalo BioBlower Air Purification Systems 2Cynvenio Offers New Breast Cancer Therapy Finder Application for its ClearID Breast Cancer Genomic Test 2Cynvenio Offers New Breast Cancer Therapy Finder Application for its ClearID Breast Cancer Genomic Test 3EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 2EmblemHealth Selects RedBrick Health to Power its Next-Generation Health Engagement and Behavior Change System 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 2Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 4
... a provider of health-care and business technology, announced a seven-year ... Medicaid Management Information System (MMIS). The new system is expected ... in November, contracts EDS to implement its InterChange health system ... and Family Services . The contract is worth approximately $189 ...
... Inc. , a provider of education products in Wisconsin ... subsidiary's president, John Stearns. , ,Generation21 lost $4.6 million ... Renaissance Learning said it had looked for strategic alternatives ... to Stearns was its best option. , ,The company ...
... Greenspan, chairman of the Federal Reserve Bank, is famous ... (and sounding smart doing it). Recently however, he managed ... skills problem that now exists within the American workforce. ... his semi-annual report to Congress on February 12, 2005 ...
Cached Biology Technology:State picks long-time vendor for $189m Medicaid information system 2Is America prepared to win the global skills race? 2Is America prepared to win the global skills race? 3Is America prepared to win the global skills race? 4
... Roche Applied Science, which pioneered the ... Expand High Fidelity and Expand Long Template ... FidelityPLUS PCR System the first product ... This new blend combines Taq DNA ...
The HEPTEST assays provide a sensitive, simple, rapid, and convenient in vitro quantitation of heparin, low molecular weight heparins, and heparinoids in plasma and whole blood. Sample Type: wh...
...
... Synergistic enzyme mix (Thermoprime Plus DNA Polymerase ... least four times higher fidelity than standard ... standard Taq DNA polymerase, Amplifies DNA templates ... long PCR, PCR for cloning and mutagenesis ...
Biology Products: