Navigation Links
Sensing disasters from space
Date:10/22/2009

One small step for mankind is now a leap for averting natural and man-made disasters on earth.

New Tel Aviv University technology combines sophisticated sensors in orbit with sensors on the ground and in the air to create a "Hyperspectral Remote Sensor" (HRS). It can give advance warnings about water contamination after a forest fire, alert authorities of a pollution spill long before a red flag is raised on earth, or tell people in China where a monsoon will strike.

Prof. Eyal Ben-Dor of Tel Aviv University's Department of Geography describes his team's HRS technology as a combination of physical, chemical and optical disciplines. "When a devastating forest fire hits the Hollywood Hills, for example, we can see from space how the mineralogy of the soil has changed," he explains. "Because of these changes, the next rainstorm may wash out all the buildings or leach contaminants into the soil. With our new tool, we can advise on how to contain the pollutants after the fire, and warn if there is a risk for landslides."

Details on new applications of this technology were presented recently in several leading journals including Soil Science Society of American Journals, Soil Science Journal and the International Journal of Remote Sensing.

Putting a price on dirt

HRS provides information useful to property developers as well. It can offer a soil profile map with detailed information for contractors, farmers or vintners interested in making major land purchase deals or managing existing ones. It can also indicate where water runoff should be directed and what minerals may be lacking in a given parcel of land.

"Water is an expensive commodity today," says Prof. Ben Dor. "Knowing how to better manage water resources is a top priority for states like California, and our new tool could help them do that."

Today, it can take years before authorities can detect chemicals that can compromise our health. For example, about 90% of all gas stations leak contaminants into the soil, says Prof. Ben-Dor. His new HRS can monitor gas stations and identify problematic areas. "Our space sensors combined with ground measurements and GPS data will be able to detect and map hydrocarbon contamination in real time. Within a year, we'll be able to identify these problematic areas far more quickly than with traditional methods," he says.

Seeing where Earth takes the heat

The HRS simultaneously acquires hundreds of optical images, each from a different frequency, that enable a "spectral assessment" from distances high in the air via airplanes and in orbit using satellites. This raw data is then processed by Prof. Ben Dor and his team to yield sophisticated thematic maps. "These are not regular maps at all," says Prof. Ben-Dor. "We are combining properties from the physical, chemical and optical worlds, using all the latest technologies available from these fields. Ours is one of a few leading teams in the world exploring this novel way of mapping earth."

These "soil maps" supply a bigger picture. Water bodies and sediment runoff in California. A small soil patch in a California forest after a fire. Impending monsoons and floods in China. Contaminants surrounding a factory. All these can literally be "seen" from space with the HRS.

Previous research by Prof. Ben-Dor, which focused on mapping urban heat islands from space, is now regularly used by cities and urban planners to develop projects such as "green" roofs or new parks.


'/>"/>

Contact: George Hunka
ghunka@aftau.org
212-742-9070
American Friends of Tel Aviv University
Source:Eurekalert  

Related biology news :

1. Common herbicides and fibrates block nutrient-sensing receptor found in gut and pancreas
2. UV-B light sensing mechanism discovered in plant roots
3. Too hot to handle! Scientists identify heat sensing regulator
4. Biosensing nanodevice to revolutionize health screenings
5. Rice scientists make breakthrough in single-molecule sensing
6. Pervasive environmental sensing a possibility
7. Northwestern study looks at sensing, movement and behavior
8. New insight into the mechanisms of voltage sensing and transduction in biological processes
9. Pollution at home lurks unrecognized, instead attributed to large-scale environmental disasters
10. International Council for Science launches major research program on natural disasters
11. Scientists outline planetary boundaries: A safe operating space for humanity
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Sensing disasters from space
(Date:1/28/2016)... SAN JOSE, Calif., Jan. 28, 2016 Synaptics (NASDAQ: ... financial results for its second quarter ended December 31, 2015. ... the second quarter of fiscal 2016 increased 2 percent compared to ... the second quarter of fiscal 2016 was $35.0 million, or $0.93 ... Non-GAAP net income for the first quarter of fiscal 2016 ...
(Date:1/25/2016)... , Jan. 25, 2016  Glencoe Software, the ... pharma and publication industries, will provide the data management ... Centre (NPSC). ... Phenotypic analysis measures ... whole organisms, allowing comparisons between states such as health ...
(Date:1/21/2016)... , January 21, 2016 ... to a new market research report "Emotion Detection and ... Others), Software Tools (Facial Expression, Voice Recognition and ... - Global forecast to 2020", published by MarketsandMarkets, ... expected to reach USD 22.65 Billion by 2020, ...
Breaking Biology News(10 mins):
(Date:2/5/2016)... 5, 2016 On Thursday, February 11, ... for community, health and disaster services, and the ... to enhance care coordination and service delivery for the ... need and to better connect service providers to the ... San Diego has handled more than ...
(Date:2/4/2016)... ... February 04, 2016 , ... Morf ... today announced an interactive FDA compliance training course, Writing Effective ... Professional Society) accredited interactive course on Morf Playbook—now conveniently available on smartphones and ...
(Date:2/4/2016)... ... 2016 , ... Shimadzu Scientific Instruments will showcase several new ... poster sessions, and present on the analysis of mycotoxins and medical cannabis at ... 10 at the Georgia World Congress Center in Atlanta, Georgia. , Attendees ...
(Date:2/4/2016)... JUNCTION, N.J. , Feb. 4, 2016 /PRNewswire/ ... care immunotherapy leader commercializing its flagship CytoSorb® blood ... cardiac surgery patients around the world, announced that ... will present at the Source Capital Group,s 2016 ... and update on the company.  ...
Breaking Biology Technology: