Navigation Links
SMOS satellite measurements improve as ground radars switch off
Date:7/3/2012

Over a dozen radio signals that have hindered data collection on ESA's SMOS water mission have been switched off. The effort also benefits satellites such as NASA's Aquarius mission, which measures ocean salinity at the same frequency.

We all know what happens when you place a cell phone too close to a speaker: seconds before the phone rings, that obnoxious buzz interrupts your favourite song. This is radio interference an unwanted reception of radio signals. Not only can it interrupt the music from your stereo, it can also impede satellite measurements.

ESA's Soil Moisture and Ocean Salinity (SMOS) satellite was launched in 2009 to improve our understanding of our planet's water cycle. In order to do this, it measures the microwaves emitted by Earth in the 1400-1427 MHz range.

SMOS immediately revealed that many unlawful signals were being transmitted around the world in this frequency range, rendering some of its measurements unusable for scientific purposes.

Over the years, ESA has investigated exactly where the interference is coming from.

As national authorities have collaborated with ESA to pinpoint the origin and switch these unlawful emissions off, the interference has waned.

One of the largest areas of contamination in the northern hemisphere is over the North Pacific and Atlantic oceans, primarily from military radars.

Over recent years, authorities from Canada and Greenland have been asked to take action. Canada started to refurbish their equipment in late 2011, while Greenland switched off their transmitters in March 2011.

At least 13 sources of interference have now been switched off in the northern latitudes. This has significantly improved SMOS observations at these high latitudes, which were previously so contaminated that accurate salinity measurements were not possible above 45 degrees latitude as the satellite headed north.

However, the few remaining
'/>"/>

Contact: Robert Meisner
robert.meisner@esa.int
39-069-418-0874
European Space Agency
Source:Eurekalert

Page: 1 2

Related biology news :

1. NASA satellites see wildfires across Colorado
2. NASA satellite sees several western US fires blazing
3. First satellite tag study for manta rays reveals habits and hidden journeys of ocean giants
4. NASA satellite measurements imply Texas wind farm impact on surface temperature
5. NASAs Landsat satellites see Texas crop circles
6. NASAs new satellite movie of 1 weeks ash activity from Mexicos Popocatepetl Volcano
7. Satellite captures images of sandstorm
8. New study by WHOI scientists provides baseline measurements of carbon in Arctic Ocean
9. Columbia Engineering and Penn researchers increase speed of single-molecule measurements
10. Denmark can triple its biomass production and improve the environment
11. Individual perspectives improve laparoscopy
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/10/2015)... August 10, 2015 The latest 364 ... comprehensive analysis of the global border security market . ... of $16.4bn in 2015. Now: Border security is ... example of the business critical issue you need to know ... visiongain ,s objective analysis of how this will impact your ...
(Date:8/5/2015)... , August 5, 2015 ... & Access Management Market by Software, Services, Vertical (BFSI, Airport, ... & Geography - Global Forecast to 2020", published by ... Management Market globally into various segments. The global PIAM ... 2014 to $546.2 Million by 2019, at a CAGR ...
(Date:8/4/2015)... AMRI ) today reported financial and operating results for the second ... Second quarter contract revenue of $ 85.2 million, ... margins of 26 % , Second quarter ... from royalties in the current quarter , Operating ... pleased to present another strong financial quarter, with all our divisions ...
Breaking Biology News(10 mins):Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 2Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 3Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 4Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 5Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 6Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 7Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 8Border Security Market Report 2015-2025 - Growth in Biometrics, ICT, Manned and Unmanned Vehicles, and Perimeter Surveillance 9Physical Identity and Access Management Market Worth $546.2 Million by 2019 2Physical Identity and Access Management Market Worth $546.2 Million by 2019 3Physical Identity and Access Management Market Worth $546.2 Million by 2019 4AMRI Announces Second Quarter 2015 Results 2AMRI Announces Second Quarter 2015 Results 3AMRI Announces Second Quarter 2015 Results 4AMRI Announces Second Quarter 2015 Results 5AMRI Announces Second Quarter 2015 Results 6AMRI Announces Second Quarter 2015 Results 7AMRI Announces Second Quarter 2015 Results 8AMRI Announces Second Quarter 2015 Results 9AMRI Announces Second Quarter 2015 Results 10AMRI Announces Second Quarter 2015 Results 11AMRI Announces Second Quarter 2015 Results 12AMRI Announces Second Quarter 2015 Results 13AMRI Announces Second Quarter 2015 Results 14AMRI Announces Second Quarter 2015 Results 15AMRI Announces Second Quarter 2015 Results 16AMRI Announces Second Quarter 2015 Results 17AMRI Announces Second Quarter 2015 Results 18AMRI Announces Second Quarter 2015 Results 19AMRI Announces Second Quarter 2015 Results 20AMRI Announces Second Quarter 2015 Results 21AMRI Announces Second Quarter 2015 Results 22AMRI Announces Second Quarter 2015 Results 23AMRI Announces Second Quarter 2015 Results 24
... ocean dwellers gasping for breath. Dead zones are low-oxygen areas ... crabs and clams are not able to live. In shallow ... excess fertilizers from farming. A team of Danish researchers have ... dramatic expansion of low-oxygen areas zones in the global ocean ...
... (GIS) and the Anhui Medical University, China, have identified genes ... a common chronic skin disease. The research, led by ... will be published online on 25 Jan. 2009 in the ... the human genomes of a large cohort of patients with ...
... report today that the FDA has approved the first ... raises important ethical considerations, but not only, or even ... stem cell-based intervention. Although deep-seated disagreements about the ... study, we need to focus as well on this ...
Cached Biology News:Dramatic expansion of dead zones in the oceans 2Compromised skin barrier function plays a role in psorasis development 2
(Date:8/31/2015)... Milpitas, Calif. (PRWEB) , ... August 31, 2015 ... ... earlier this year to bring together supply chain risk management and resiliency practitioners ... collaborate, develop and share best practices, and be recognized for their innovations and ...
(Date:8/31/2015)... ... August 31, 2015 , ... In ... its properties such as low carbon footprints and compostability. These properties can help ... based plastics. On the basis of applications, the market for biodegradable plastics can ...
(Date:8/31/2015)... Research and Markets ( http://www.researchandmarkets.com/research/v7fdpx/argentina ) has ... Market - Growth, Trends & Forecasts (2014-2020)" report ... Sensors market is estimated at $0.17 billion by 2018 ... The near future will bring Biomedical sensors ... individual. These sensors can be set to trigger alerts ...
(Date:8/31/2015)... , Aug. 31, 2015 Research and ... the "Israel Biomedical Sensors Market - Growth, Trends ... The Israel Biomedical Sensors market is estimated ... 3.73% over the period 2014-2020 The near ... the genetic formulation of each individual. These sensors can ...
Breaking Biology Technology:Global Supply Chain Resiliency Council Announces Incorporation and Web Site Launch 2Global Supply Chain Resiliency Council Announces Incorporation and Web Site Launch 3Biodegradable Plastics Market Growing at 10.8% CAGR to 2020 2Biodegradable Plastics Market Growing at 10.8% CAGR to 2020 3Biodegradable Plastics Market Growing at 10.8% CAGR to 2020 4Biodegradable Plastics Market Growing at 10.8% CAGR to 2020 5Argentina Biomedical Sensors Market Report 2015 - Growth, Trends & Forecasts 2014-2020 2Israel Biomedical Sensors Market 2015 - Growth, Trends & Forecasts to 2020 2
... 2009 ... NDA, ... Michel de Rosen, ViroPharma,s president and,chief executive officer, will provide an overview ... JPMorgan Healthcare,Conference. As previously announced, this presentation will be webcast live,at 2:00 ...
... to distribute Palomar products outside North America, ... (Nasdaq: PMTI ), a leading researcher and ... the execution,of an international distribution agreement with the ... Cap: QMED), a leading,biotech/medical device company based in ...
... RxElite, Inc. (OTC,Bulletin Board: RXEI), a developer, ... announced today that as permitted under,the registration rights ... to cease using the company,s Registration Statement on,Form ... prospectus until,further advised. This release corrects and should ...
Cached Biology Technology:ViroPharma Provides 2008 Outlook 2ViroPharma Provides 2008 Outlook 3ViroPharma Provides 2008 Outlook 4ViroPharma Provides 2008 Outlook 5ViroPharma Provides 2008 Outlook 6Palomar and Q-MED AB Enter Into International Distribution Agreement 2Palomar and Q-MED AB Enter Into International Distribution Agreement 3Palomar and Q-MED AB Enter Into International Distribution Agreement 4Palomar and Q-MED AB Enter Into International Distribution Agreement 5Palomar and Q-MED AB Enter Into International Distribution Agreement 6/CORRECTION//- RxElite Temporarily Suspends Sales Under Its Registration Statement 2
Chicken polyclonal to YebU ( Abpromise for all tested applications). Antigen: Full length YebU (Escherichia coli)...
Human Cell Line Slides...
Human Cell Line Slides...
Human Cell Line Slides...
Biology Products: