Navigation Links
AGU journal highlights -- 31 August 2012
Date:8/31/2012

Department, Palmetto Bay, Florida;

Pierre Goovaerts: BioMedware, Inc. Ann Arbor, Michigan.


4. Wetlands the primary source of Amazon Basin methane

The Amazon basin is an important sink of carbon dioxide, but it is also a substantial source of atmospheric methane. Tropical wetlands, including those in the Amazon, are one of the largest sources of biogenic methane and globally represent roughly 13 percent of annual emissions of the greenhouse gas. Other sources of methane include fossil fuel or biomass burning. Through two intensive atmospheric methane sampling campaigns, Beck et al. determine the sources of Amazonian methane.

During 27 flights split between November 2008 and May 2009 the authors measured 150 vertical profiles of the atmospheric methane concentration, spanning 500 to 4,000 meters (roughly 1,600 to 13,000 feet) altitude. During both sets of flights they collected atmospheric samples, and during the 2009 flights they also produced the first continuous measurement of Amazon basin methane, accurate to within 2 parts per billion and sampled at three-second intervals. Using isotopic analyses of the collected gas samples, the authors find that Amazon basin methane is predominantly biogenic. Based on carbon monoxide measurements made concurrently with the methane observations, they calculate that biomass burning was not a major contributor to methane emissions.

They find that wetlands were the primary source of methane. However, they note that other biogenic sources, such as waste decomposition or sewage and cattle operations, could easily be confused with wetland emissions. The authors note that their two airborne campaigns are not enough on which to base an assessment of the Amazon's annual methane emissions.

Source: Journal of Geophysical Research - Atmospheres, doi:10.1029/2011JD017345, 2012

Contact: Mary Catherine Adams
mcadams@agu.org
202-777-7530
American Geophysical Union
Source:Eurekalert

Page: 1 2 3 4 5 6 7 8 9 10

Related biology news :

1. Biomass characterization technology research highlighted in Industrial Biotechnology journal
2. 2012 Science in Society Journalism Awards announced
3. August 2012 tips from the journals of the American Society for Microbiology
4. Prestigious Royal Society of Tropical Medicine and Hygiene journals join Oxford University Press
5. Dawn of humanity illuminated in special journal edition 50 years after the Leakeys
6. Dawn of humanity illuminated in special journal edition - 50 years after the Leakeys
7. First antibiotic stewardship probed in the Journal of the Pediatric Infectious Diseases Society
8. US Navy defends renewable fuels strategy in Industrial Biotechnology Journal
9. Genetics Society of America’s GENETICS journal highlights for August 2012
10. Method to prevent rejection of disease-fighting proteins described in Human Gene Therapy journal
11. AGU journal highlights -- 31 July 2012
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/9/2015)... 2015 Research and ... the "Biometrics for Banking; Market & Technology ... to their offering. The adoption for ... growth and the forecast is that by 2020 ... companies involved in delivering biometric systems to the ...
(Date:7/8/2015)...  Trovagene, Inc. (NASDAQ: TROV ), a ... launch of a study that aims to determine ... technology for predicting response to treatment in advanced ... the novel immunotherapy agents Yervoy® (ipilumumab), a CTLA-4 ... 50-patient study will be led by researchers at ...
(Date:7/2/2015)... June 25, 2015 ... addition of the "Natural Language Processing Market ... IVR, OCR, Pattern & Image Recognition) - Worldwide ... The key vendors occupying the market ... Corporation, Microsoft Corporation, NetBase Solutions, SAS Institute Inc., ...
Breaking Biology News(10 mins):Global Banking Biometrics Market 2015-2020 - Market & Technology Analysis, Adoption Strategies and Forecasts 2Global Banking Biometrics Market 2015-2020 - Market & Technology Analysis, Adoption Strategies and Forecasts 3Trovagene Initiates Study to Monitor Response to Immunotherapy in Melanoma Patients Using its Precision Cancer Monitoring Platform 2Trovagene Initiates Study to Monitor Response to Immunotherapy in Melanoma Patients Using its Precision Cancer Monitoring Platform 3Trovagene Initiates Study to Monitor Response to Immunotherapy in Melanoma Patients Using its Precision Cancer Monitoring Platform 4Natural Language Processing Market by Type (Rule-Based, Statistical, and Hybrid), Technologies (Recognition, IVR, OCR, Pattern & Image Recognition) - Worldwide Forecast to 2020 2
... the first time in more than 100 years, drug and ... that their products contain safe levels of metal impurities, and ... of the cover story in the current edition of ... of the American Chemical Society, the world,s largest scientific society. ...
... and molecules interact in biochemical materials in solution", says ... Investigator Group for Functional Materials in Solution at the ... published work is based on a discovery by Aziz, ... with x-ray spectroscopy and observed the disappearance of photons ...
... in how people,s taste receptors send signals, leading to ... State food scientists. These varied, genetically influenced responses may ... range of artificial sweeteners to accommodate different consumer tastes. ... to tastes of foods," said John Hayes, assistant professor, ...
Cached Biology News:Multiple genes manage how people taste sweeteners 2
(Date:7/29/2015)... PARIS , July 30, 2015 ... leader, reports results for the second quarter of ... the group,s results and its performance in different ... transcript:  http://www.eurobusinessmedia.com/ceo-direct/sanofi/sanofi-h1-2015-results-interview-with-ceo-olivier-brandicourt?utm_source=ceo-direct&utm_medium=wire ... - Q2 results - Performance drivers ...
(Date:7/29/2015)... /PRNewswire/ - BioAmber Inc. (NYSE: BIOA ) today announced ... Officer has resigned.  The Company has hired Andrew ... in December 2014, as full time interim CFO and ... Andy Ashworth began his employment today, ... transition.  Andy was the Company,s CFO from September 2011 ...
(Date:7/29/2015)... , ... July 29, 2015 , ... ... today announced its GHS Label Guide . To align chemical container labeling ... this guide includes explanations of label components, an example of an accurate label, ...
(Date:7/29/2015)... ... July 29, 2015 , ... The third Medical Innovation Impact ... products , in particular, drug/device combinations. The current system received a score of 0 ... for Patient Centered Innovation (iPCI) of Fairleigh Dickinson University’s ( FDU ) Rothman ...
Breaking Biology Technology:BioAmber Announces Change in Chief Financial Officer 2BioAmber Announces Change in Chief Financial Officer 3Brady Announces a New GHS Label Guide 2Third Medical Innovation Impact Index Issued by Fairleigh Dickinson University’s Initiative for Patient-Centered Innovation (iPCI) 2Third Medical Innovation Impact Index Issued by Fairleigh Dickinson University’s Initiative for Patient-Centered Innovation (iPCI) 3
... National Institute of Standards and Technology (NIST) have a ... reported values for other nanoscale devices such as carbon ... Because a high Q factor indicates a capacity for ... in nano-electromechanical systems for future nano-sensors and communications devices. ...
... PARK, Calif., Nov. 27 Corium International, Inc.,a ... of Phyllis Gardner, M.D. and Daniel G. Welch ... partner at Essex Woodlands Health,Ventures, is a Professor ... the fields of cell biology and pharmacology. In ...
... New MAMMOMAT(R) Novation S Introduces Innovations to ... Siemens Medical Solutions, (http://www.usa.siemens.com/medical ) introduces the ... designed to optimize clinical workflow for,screenings, at ... of the,Radiological Society of North America (RSNA) ...
Cached Biology Technology:'High Q' NIST nanowires may be practical oscillators 2Corium International, Inc. Announces Appointment of Phyllis Gardner, M.D. and Daniel G. Welch to Board 2Corium International, Inc. Announces Appointment of Phyllis Gardner, M.D. and Daniel G. Welch to Board 3Siemens Unveils New Digital Mammography System for Optimized Screening 2
... Life Sciences can provide custom microplate coating using advanced automated ... variety of plate formats. We can also accommodate virtually any ... of 0.5-320 L):, , ... 96 well microplate, 384 well ...
... Conjugation Kits are based on well-established ... are consistent and reproducible. This kit ... your protein or antibody, including ready-to-use ... Activated HRP is supplied ready-to-use ...
... ester can be used to ... The covalently bound acridinium NHS ... the presence of hydrogen peroxide. ... be used as a detection ...
... instrument designed to hold up to 6 strain ... and easy to use design ensures that cells ... cyclic stretching or compression. This unit allows you ... strain to produce 64 unique strain settings. The ...
Biology Products: