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:5/23/2017)... GENOA, Italy , May 23, 2017  Hunova, the first robotic ... and trunk, has been officially launched in Genoa, Italy ... Europe and the USA . The ... launched on the market by the IIT spin-off Movendo Technology thanks to ... view the Multimedia News Release, please click: ...
(Date:5/6/2017)... 2017 RAM Group , Singaporean ... breakthrough in biometric authentication based on a ... to perform biometric authentication. These new sensors are based ... by Ram Group and its partners. This sensor will ... chains and security. Ram Group is a next ...
(Date:4/18/2017)... Calif. , April 18, 2017  Socionext Inc., a global ... of a media edge server, the M820, which features the company,s ... recognition software provided by Tera Probe, Inc., will be showcased during ... at the NAB show at the Las Vegas ... ...
Breaking Biology News(10 mins):
(Date:10/12/2017)... ... October 12, 2017 , ... ... the three Winners and six Finalists of the 2017 Blavatnik Regional Awards for ... Blavatnik Family Foundation and administered by the New York Academy of Sciences to ...
(Date:10/12/2017)... ... 12, 2017 , ... AMRI, a global contract research, development ... patient outcomes and quality of life, will now be offering its impurity solutions ... new regulatory requirements for all new drug products, including the finalization of ICH ...
(Date:10/11/2017)... ... 11, 2017 , ... Personal eye wash is a basic first aid supply for any work ... which eye do you rinse first if a dangerous substance enters both eyes? It’s one ... with its unique dual eye piece. , “Whether its dirt and debris, or an ...
(Date:10/11/2017)... and LAGUNA HILLS, Calif. , Oct. ... Cancer Research, London (ICR) and University ... SKY92, SkylineDx,s prognostic tool to risk-stratify patients with multiple myeloma ... MUK nine . The University of Leeds ... partly funded by Myeloma UK, and ICR will perform the ...
Breaking Biology Technology: