Navigation Links
New radar satellite technique sheds light on ocean current dynamics
Date:1/24/2008

Ocean surface currents have long been the focus of research due to the role they play in weather, climate and transportation of pollutants, yet essential aspects of these currents remain unknown.

By employing a new technique based on the same principle as police speed-measuring radar guns to satellite radar data, scientists can now obtain information necessary to understand better the strength and variability of surface current regimes and their relevance for climate change.

Scientists at the SeaSAR 2008 workshop held this week in ESRIN, ESA's European Centre for Earth Observation in Frascati, Italy, demonstrated how this new method on data from the Advanced Synthetic Aperture Radar (ASAR) instrument aboard ESAs Envisat, enabled measurements of the speed of the moving ocean surface.

Synthetic Aperture Radar (SAR) instruments, such as ASAR, record microwave radar backscatter in order to identify roughness patterns, which are linked to varying surface winds, waves and currents of the ocean surface. However, interpreting radar images to identify and quantify surface currents had proven very difficult.

By using the new information embedded in the radar signal the Doppler shift of the electromagnetic waves reflected from the water surface Dr Bertrand Chapron of the French Research Institute for Exploitation of the Sea (IFREMER), Dr Johnny Johannessen of Norways Nansen Environmental and Remote Sensing Centre (NERSC) and Dr Fabrice Collard of France's BOOST Technologies were able to determine how surface winds and currents contribute to the Doppler shift.

The Doppler shift occurs due to changing relative velocities, experienced in everyday life in the way the pitch of a siren on a passing ambulance goes up as it approaches, then goes down as the vehicle recedes away.

The shift is introduced by the relative motion between the satellite platform, the rotation of the Earth and the velocity of the particular facet
'/>"/>

Contact: Mariangela D'Acunto
mariangela.dacunto@esa.int
39-069-418-0856
European Space Agency
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Satellites witness lowest Arctic ice coverage in history
2. UNCCD recognizes importance of satellites for combating desertification
3. Satellites help ensure efficient use of pesticides
4. Telemedicine: Health alert via satellite
5. ASU researchers use NASA satellites to improve pollution modeling
6. New technique can be breakthrough for early cancer diagnosis
7. University of Leicester scientists discover technique to help friendly bacteria
8. New technique reveals subtle force-induced changes in biomolecules conformation
9. New magnetic separation technique might detect multiple pathogens at once
10. New technique captures chemical reactions in a single living cell at unprecedented resolution
11. Software Techniques Inc. Selects M2SYS Fingerprint Software to Meet Continuous Growth and Demand for Desktop Biometric Time & Attendance Solutions
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/21/2015)... Today, ZTE announced its Android smartphone Axon, ... expected revenues in 2015 that relate to sales of FPC1025 for ... approximately 2,200 MSEK for 2015. Jörgen Lantto, CEO of ... in China and we are proud that ... for Axon , its first ...
(Date:7/13/2015)... July 13, 2015 Synaptics Inc. (NASDAQ: ... interface solutions, today announced sampling of ClearPad ® ... driver integration (TDDI) product targeting smartphones and tablets. ... combine Synaptics , best-in-class touch controller IP ... technology developed in the company,s Japan Design Center. ...
(Date:7/9/2015)... 9, 2015  Unchained Labs just can,t get ... of Avid Nano. Avid Nano designs, develops and ... Also today, Unchained Labs UNcaged ... to use protein sizing system. The pUNk is ... hydrodynamic size, size distribution, aggregation population and molecular ...
Breaking Biology News(10 mins):FPC's Touch Fingerprint Sensor FPC1025 in ZTE's Smartphone Axon 2Synaptics Announces Sampling of Second Generation TDDI Solutions 2Synaptics Announces Sampling of Second Generation TDDI Solutions 3Unchained Labs just can't get enough, acquires Avid Nano, rocks out the new pUNk! 2
... useful in helping to prevent pregnancy complications in ... syndrome, Yale School of Medicine researchers have found ... American Journal of Reproductive Immunology . Circulating ... the body to recognize and attack bacteria and ...
... January 22, 2013 How aging affects communication between ... it more difficult to treat a range of disorders, ... study from the Florida campus of The Scripps Research ... brain,s neural circuitry, in some cases significantly altering gene ...
... The Biophysical Society has announced the winners of its ... 58th Annual Meeting at the Moscone Center in San ... Professional Opportunities for Women (CPOW), has initiated these travel ... encourage their participation at the Meeting. The recipients ...
Cached Biology News:Scripps Florida scientists offer new insight into neuron changes brought about by aging 2Biophysical Society announces winners of 2014 CPOW Travel Awards 2
(Date:8/5/2015)... 5, 2015 The Biosimilars Forum ... members Reps. Joe Barton (R-TX) and ... of 33 House members, for their leadership in sending ... for the Centers for Medicare & Medicaid Services (CMS), ... CMS,s 2016 Medicare Physician Fee Schedule proposed rule. As ...
(Date:8/5/2015)... 2015  MabVax Therapeutics Holdings, Inc. (OTCQB: MBVX) ("MabVax" ... company, announces the posting of the following Letter to ... Hansen to the Company,s website at www.mabvax.com ... have invested in MabVax Therapeutics because you share our ... difficult cancers.  You also share our excitement about our ...
(Date:8/5/2015)... , Aug. 5, 2015 GenomeDx Biosciences announced ... at 9:45 a.m. ET on Wednesday, August 12, in ... GenomeDx, will provide an update about the company,s Decipher ® ... About Decipher ® The Decipher ®  Prostate ... test for men with intermediate and high risk prostate cancer. ...
(Date:8/5/2015)... Switzerland (PRWEB) , ... August 05, 2015 , ... ... solutions for production, culture, and assessment of more organotypic 3D cell culture models, ... GravityTRAP™ Ultra-Low Attachment (ULA) Plates are now available for purchase exclusively ...
Breaking Biology Technology:Biosimilars Forum Applauds Reps. Barton, Eshoo for Leadership on Proposed Medicare Rule on Biosimilar Coding 2Biosimilars Forum Applauds Reps. Barton, Eshoo for Leadership on Proposed Medicare Rule on Biosimilar Coding 3MabVax Therapeutics Issues Letter to Stockholders 2MabVax Therapeutics Issues Letter to Stockholders 3MabVax Therapeutics Issues Letter to Stockholders 4MabVax Therapeutics Issues Letter to Stockholders 5MabVax Therapeutics Issues Letter to Stockholders 6MabVax Therapeutics Issues Letter to Stockholders 7MabVax Therapeutics Issues Letter to Stockholders 8MabVax Therapeutics Issues Letter to Stockholders 9MabVax Therapeutics Issues Letter to Stockholders 10MabVax Therapeutics Issues Letter to Stockholders 11MabVax Therapeutics Issues Letter to Stockholders 12MabVax Therapeutics Issues Letter to Stockholders 13GenomeDx Biosciences to Present at 2015 Wedbush PacGrow Healthcare Conference 2GenomeDx Biosciences to Present at 2015 Wedbush PacGrow Healthcare Conference 3InSphero Expands Global Availability of its Patented 3D Cell Culture Platforms 2InSphero Expands Global Availability of its Patented 3D Cell Culture Platforms 3
... , CHICAGO , July 23 ... Board: ADLS), a biopharmaceutical company engaged in the discovery, development ... infection, oncology and respiratory diseases, today announced that the Company ... its chairman and CEO Michael T. Flavin , Ph.D. ...
... market research report is available in its catalogue: , , ... - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) , ... http://www.reportlinker.com/p0243111/Bioinformatics-Market---Advanced-Technologies-Global-Forecast-and-Winning-Imperatives-2009---2014.html , , , ... , , ...
... important tools for vocational guidance. Researchers are now asking whether ... structure, and if so, can brain scans be helpful in ... in the open access journal BMC Research Notes ... correlate to gray matter in areas throughout the brain. ...
Cached Biology Technology:Advanced Life Sciences CEO Acquires $2 Million of Common Stock Through Debt for Equity Exchange 2Advanced Life Sciences CEO Acquires $2 Million of Common Stock Through Debt for Equity Exchange 3Reportlinker Adds Bioinformatics Market - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) 2Reportlinker Adds Bioinformatics Market - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) 3Reportlinker Adds Bioinformatics Market - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) 4Reportlinker Adds Bioinformatics Market - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) 5Reportlinker Adds Bioinformatics Market - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) 6Reportlinker Adds Bioinformatics Market - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) 7Reportlinker Adds Bioinformatics Market - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) 8Reportlinker Adds Bioinformatics Market - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) 9Reportlinker Adds Bioinformatics Market - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) 10Reportlinker Adds Bioinformatics Market - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) 11Reportlinker Adds Bioinformatics Market - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) 12Reportlinker Adds Bioinformatics Market - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) 13Reportlinker Adds Bioinformatics Market - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) 14Reportlinker Adds Bioinformatics Market - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) 15Reportlinker Adds Bioinformatics Market - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) 16Reportlinker Adds Bioinformatics Market - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) 17Reportlinker Adds Bioinformatics Market - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) 18Reportlinker Adds Bioinformatics Market - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) 19Reportlinker Adds Bioinformatics Market - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) 20Reportlinker Adds Bioinformatics Market - Advanced Technologies, Global Forecast and Winning Imperatives (2009 - 2014) 21
... a clone of the human Topoisomerase II gene. ... the topological state of nucleic acids by passing ... which generates a separate DNA helix (1,2) . ... mechanism, the enzyme can relax negatively or positively ...
RNase-Free DNase 50 l...
supplied with 10x reaction buffer...
... RNase H degrades, as an endoribonuclease, ... DNA hybrids of natural origin, e.g. ... synthetic complexes, e.g. poly(A) x poly(dT). ... and 3-OH termini. Nearly no activity ...
Biology Products: