Navigation Links
Radio waves carry news of climate change
Date:7/30/2013

The ionosphere, one of the regions of the upper atmosphere, plays an important role in global communications. Ionized by solar radiation, this electricity-rich region is used for the transmission of long wave communications, such as radio waves. Now Prof. Colin Price of Tel Aviv University's Department of Geophysical, Atmospheric and Planetary Sciences, working alongside PhD candidate Israel Silber, has discovered that the radio waves reflecting back to Earth from the ionosphere offer valuable news on climate change as well.

Their research shows that the strength of radio signals on the ground is a reliable indicator of temperature change above. Prof. Price and his team used simple radio antennae on the ground to measure radio waves broadcast by navigational transmitters around the globe, then compared information on the strength of these radio signals with data on temperature fluctuations in the upper atmosphere. They discovered that climate change in the upper atmosphere caused by an abundance of greenhouse gases may lead to a greater absorption of radio waves. Weaker signals could therefore be indicative of greater climate change.

Detailed in the Journal of Geophysical Research, this simple, cost-effective measurement can be a valuable contribution to the ongoing effort to track climate change, says Prof. Price, adding to measurements of ground and lower atmospheric temperatures to create a more holistic picture.

Global warming, upper atmospheric cooling

On the Earth's surface and in the lower atmosphere, an increase of greenhouse gases has a warming effect, the gases acting as a "blanket" and keeping heat from escaping from the Earth into space. But these gases, including carbon dioxide, are increasing in the upper atmosphere as well, where they have a cooling effect.

When cooled, the ionosphere contracts and descends into the atmosphere to where air is denser leading to a higher absorption of
'/>"/>

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

Page: 1 2

Related biology news :

1. MU researchers develop radioactive nanoparticles that target cancer cells
2. Society of Interventional Radiology: 38th Annual Scientific Meeting
3. Drug shown to reverse radioiodine resistance in some advanced thyroid cancers
4. Elsevier announces the launch of a new journal: Journal of Forensic Radiology and Imaging
5. Society of Interventional Radiology: Time to rethink varicose veins
6. Molecular 2-way radio directs nerve cell branching and connectivity
7. UCI radiology researcher to aid NASA bone density study
8. Aware Enables Automated Delivery of Radiation Dose Information Through Integration With Leading Radiology Reporting System
9. Society of Interventional Radiology hails affirmation of specialtys role in patient care
10. Updates in Interventional Radiology accents emerging trends, practice growth
11. Radiologists study necessity of additional imaging recommendations in PET/CT oncologic reports
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/17/2014)... 16, 2014  Automation is fundamentally transforming the ... than at international borders. Over the past decade, ... allowed veteran travelers to self process through border ... Kiosks at an increasing number of airports, seaports, ... According to Maxine Most , Principal ...
(Date:12/11/2014)... , Dec. 09, 2014 Research and Markets ... ( http://www.researchandmarkets.com/research/twhjll/biometrics_market ) has announced ... the APAC Region 2015-2019"  report to their offering. ... this market is advances in technology. With continuous ... biometric solutions to the latest standard that meets ...
(Date:12/11/2014)... -- That blood pressure plays a role in human health has ... term for high blood pressure – was first described as ... that,s used in measuring blood pressure was invented in 1896. ... hypertension, its triggers and its effects. In fact, recent findings ... best ways to treat it. For example, a ...
Breaking Biology News(10 mins):Automated Border Control (ABC) Transforms the Global Travel Experience With More Than 2500 ABC eGates and APC Kiosks Deployed In Airports, Seaports, and Land Borders Worldwide 2Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2Research points to need for new approaches to treatment of high blood pressure 2Research points to need for new approaches to treatment of high blood pressure 3Research points to need for new approaches to treatment of high blood pressure 4
... a range of free, multi-media resources to update the study ... genetics research have leapt from sequencing the human genome over ... a genome in days for just a few thousand dollars, ... The pace of research means that genomics, more than almost ...
... LA Research led by Chu Chen, PhD, Associate Professor ... identified an enzyme called Monoacylglycerol lipase (MAGL) as a new ... was published online November 1, 2012 in the Online Now ... team found that inactivation of MAGL, best known for its ...
... Carnegie Institution announced today that it is a grant ... by the Bill & Melinda Gates Foundation. Wolf ... jointly with Bing Yang from Iowa State University and ... global health and development research project entitled "Transformative Strategy ...
Cached Biology News:Bridging the gap between genomics and education 2LSUHSC research identifies new therapeutic target for Alzheimer's disease 2Carnegie Institution for Science receives Grand Challenges Explorations grant 2
(Date:12/17/2014)... 17, 2014 This report is ... Tubing industry. For an overview analysis, the report ... industry chain structure, industry overview, policy analysis, and ... industry has witnessed rapid development with key ... acquisitions. This report mentions quartz tubing upstream raw ...
(Date:12/17/2014)... 2014 Audacity, a leading California-based health ... of the Huntsworth Health Group, is proud to announce ... In her role, Gonzales will serve as Senior Vice ... honored to welcome a talent of Jamie’s caliber to ... Fraikin. “She is a proven healthcare innovation leader and ...
(Date:12/17/2014)... Dec. 17, 2014 CASI Pharmaceuticals, Inc. (Nasdaq: ... the acquisition, development and commercialization of innovative therapeutics addressing ... market with a primary commercial focus on ... granted a Type C meeting with the U.S. Food ... be held in February 2015.  During this meeting the ...
(Date:12/15/2014)... (PRWEB) December 15, 2014 METTLER ... inline PVM tool, ParticleView V19 with PVM ... situ probe-based particle vision and measurement tool continuously ... process conditions. ParticleView V19 then automatically prepares a ... tracking particle size and concentration changes. This compelling ...
Breaking Biology Technology:2020 Quartz Tubing Market: Global Development & Forecasts Analysis Now at DeepResearchReports.com 2Audacity Welcomes Healthcare Communications Expert Jamie Gonzales as Senior Vice President of Client Services 2CASI Pharmaceuticals Granted Type C Meeting With U.S. FDA For ENMD-2076 In Fibrolamellar Carcinoma 2CASI Pharmaceuticals Granted Type C Meeting With U.S. FDA For ENMD-2076 In Fibrolamellar Carcinoma 3CASI Pharmaceuticals Granted Type C Meeting With U.S. FDA For ENMD-2076 In Fibrolamellar Carcinoma 4CASI Pharmaceuticals Granted Type C Meeting With U.S. FDA For ENMD-2076 In Fibrolamellar Carcinoma 5New Real-Time In Situ Probe-Based Video Microscope from METTLER TOLEDO 2
... Defense program , ,MADISON, Wis. Alfalight, Inc. ... percent total power conversion efficiency in its 970 nm ... step toward the eventual goal of 80 percent efficiency ... Agency s Super High Efficiency Diode Sources ...
... Wis. The Wisconsin Virtual School program ... eCollege, to power its online program starting in August ... is a statewide online program based in Tomahawk that ... is designed to enable districts to stretch resources and ...
... way to summer heat, long weekends and beach vacations, we ... nightstand and imagine that we'll have just enough time before ... I had occasion to ask a number of tech executives ... both classic business texts and insightful new offerings in ...
Cached Biology Technology:Alfalight increases laser efficiency for DOD program 2DEMOletter's Summer Reading List 2DEMOletter's Summer Reading List 3DEMOletter's Summer Reading List 4
... The RapidCycler is the first instrument engineered ... and is used by thousands of research ... LightCycler Capillary tubes which are ideally suited ... thin walls and extremely high surface-area-to-volume ratio. ...
Yellow oily liquid. Contains 85% Drakeol 5NF, 15% Arlacel A (mannide monooleate emulsifier). Heat sterilized. Contains zero colony forming units/ml. ...
... miRCURY Array LNA microarray slides for ... microarray slides incorporate Exiqons unique Locked Nucleic ... and excellent mismatch discrimination for short microRNA ... less than 1 g total RNA (no ...
With sodium bicarbonate. Sterile, Cell culture tested...
Biology Products: