Navigation Links
Carbon accounting from atmospheric measurements -- the aircraft perspective
Date:2/15/2009

Carbon dioxide (CO2) distinguishes itself as the fastest growing greenhouse gas in the atmosphere today. Policy decisions and regulation of CO2 emissions depends on our ability to measure the increase in the atmosphere and determine the source of the increase.

Until the late 1950s when high precision measurements began at Mauna Loa, Hawaii, many questioned whether the industrial revolution and the associated increase in fossil fuel burning affected the atmosphere. The Mauna Loa time series of CO2 measurements are the core of a network that has since grown. Recently, the global network of CO2 measurements was expanded (http://www.esrl.noaa.gov/gmd/ccgg/iadv/) into the mid-continent to detect changes in CO2 originating from specific regions within continental boundaries. The new sites include mountain tops, tall towers, and regular aircraft profiles.

The NOAA/ESRL carbon cycle aircraft program made several recent contributions that help clarify carbon cycling processes. At the regional scale the aircraft network used bimonthly measurements of CO2 from 16 aircraft profile sites around North America to create a monthly three-dimensional picture of CO2 over the continent. By combining these observations with a novel budgeting approach to estimate land-to-atmosphere fluxes, researchers found a moderate sink an area that absorbs CO2 - after subtracting estimated fossil fuel emissions from 2004-2006. Researchers also found that the highest uptake or absorption of CO2 occurs in the Midwest and the Southeast. This agrees with estimates of crop uptake, which proves to be a significant part of the US atmospheric CO2 sink, and of secondary forest regrowth in the East.

The NOAA/ESRL aircraft network has embarked on many recent intensive efforts to explore processes at the 10 to 100 km scale. In particular, air mass-following experiments using small aircraft can be used to observe ground emission or uptake of CO2 in a single air mass as it moves across an agricultural or urban landscape. The net result is a validation of ground-level emissions estimates by direct measurements of changes in atmospheric CO2.


'/>"/>

Contact: Ben Sherman
ben.sherman@noaa.gov
202-253-5256
NOAA Headquarters
Source:Eurekalert

Related biology news :

1. Green plastics could help reduce carbon footprint
2. Ocean islands fuel productivity and carbon sequestration through natural iron fertilization
3. Fish guts explain marine carbon cycle mystery
4. Decline of carbon-dioxide-gobbling plankton coincided with ancient global cooling
5. Researchers make breakthrough in the production of double-walled carbon nanotubes
6. Tropical forest carbon monitoring gets big boost
7. Managing carbon loss
8. ESA tests laser to measure atmospheric carbon dioxide
9. Replacing corn with perennial grasses improves carbon footprint of biofuels
10. Rivers are carbon processors, not inert pipelines
11. Montana State partnership receives $66.9M for carbon sequestration
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/23/2017)... , Aug. 23, 2017  The general public,s help is being ... microbiome—the bacteria that live in and on the human body –and are ... The Microbiome ... the human microbiome, starting with the gut. The project's goal is to ... Photo credit: IBM ...
(Date:8/15/2017)... LLC , a medical device company focused on improving the safety ... ISO 13485 Certification, the global standard for medical device quality management ... ... for the early detection of IV infiltrations. ... "This is an important milestone for ivWatch, as it validates our ...
(Date:7/20/2017)... , July 20, 2017 Delta (NYSE: DAL ... board any Delta aircraft at Reagan Washington National Airport (DCA). ... Delta launches biometrics to ... Delta,s biometric ... Sky Club is now integrated into the boarding process to allow ...
Breaking Biology News(10 mins):
(Date:9/21/2017)... Paramus, New Jersey (PRWEB) , ... September 21, ... ... for highly-regulated pharmaceutical and clinical research sector professionals, has announced the addition of ... CFR Part 11 training - Compliance with Regulation 21 CFR Part 11 ...
(Date:9/21/2017)... ... September 21, 2017 , ... Biorez, ... election of Paul Hermes, Entrepreneur in Residence at Medtronic, Inc., to serve as ... a proprietary, tissue-engineered scaffold for anterior cruciate ligament (ACL) reconstruction that is designed ...
(Date:9/20/2017)... ... 20, 2017 , ... Diversity focused business accelerator, The Refinery , announced ... to uncover the top technology-driven, women-led startups in Boston, MA, New Haven/Hamden, CT, and ... entrepreneurial events going on that week – in Boston, it will be part of ...
(Date:9/20/2017)... East Hanover, N.J. (PRWEB) , ... ... ... Foundation researchers have recently published findings of a study examining the effects ... and individuals with spinal cord injury (SCI). The article, "Neuromechanical adaptations during ...
Breaking Biology Technology: