Navigation Links
UI researchers help to improve carbon measurements in global climate studies
Date:11/14/2008

UI researchers help to improve carbon measurements in global climate studies

University of Iowa researchers and their colleagues have found a way to improve existing estimates of the amount of carbon absorbed by plants from the air, thereby improving the accuracy of global warming and land cover change estimates, according to a paper published in the Nov. 13 issue of the journal Science.

By knowing the effects of plants on the atmosphere, scientists will be better able to determine the amount of human-generated carbon dioxide (CO2) injected into the atmosphere, according to Greg Carmichael, professor of chemical and biochemical engineering in the UI College of Engineering and co-director of the Center for Global and Regional Environmental Research (CGRER).

"This work demonstrates a technique to get a direct estimate of the photosynthetic uptake by plants over large regions," he said. "This is critical because in the carbon budget analysis we need to be able to quantify the various sources of carbon dioxide, especially the carbon dioxide from anthropogenic activities and the uptake of carbon dioxide by plants.

"Both are needed if we are to come up with better management strategies in reducing manmade emissions and in the case of plants increasing their carbon uptake," said Carmichael, who was named in September to a National Academy of Sciences (NAS) study on the significance of the international transport of air pollutants.

In addition to Carmichael, the paper's UI co-authors include lead author Elliott Campbell, who participated in the study while earning his doctoral degree at Iowa and who currently is assistant professor of engineering at the University of California, Merced; Tianfeng Chai, former postdoctoral student at CGRER and currently at the U.S. EPA Air Resources Lab, Research Triangle Park, N.C.; Marcelo Mena-Carrasco, former UI doctoral candidate and currently at the Department of Environmental Engineering, Universidad Andres Bello, Santiago, Chile, and the Molina Center for Energy and the Environment, MIT; Youhua Tang, formerly of CGRER and now at the National Oceanic and Atmospheric Administration/Scientific Applications International Corporation (NOAA/SAIC); Jerald Schnoor, professor of civil and environmental engineering and CGRER co-director; and Charles Stanier, assistant professor of chemical and biochemical engineering, and assistant research engineer at IIHR-Hydroscience and Engineering.

In the paper, Campbell and his colleagues show that measurements of carbonyl sulfide (COS), a naturally occurring atmospheric gas consumed by plants, can be related to plant uptake of carbon dioxide. The hope is that future work can exploit this relationship to reduce uncertainty in carbon dioxide fluxes. The paper tells how COS analysis may be used as a measurement-based photosynthesis tracer.

"We've always looked at the total change in CO2, but now we can look for the influence of photosynthesis on this total change," remarked Campbell. "Our approach, based on the relation of carbonyl sulfide to photosynthesis, gives us this unique ability."

The researchers used a NASA aircraft and NASA/NOAA funding to gather and analyze airborne observations of COS and carbon dioxide concentrations during the growing season over North America with a 3-D atmospheric transport model. They note that the study likely will result in additional measurements of COS being added to current carbon networks.

They plan to continue their work and use data from the NOAA-supported Iowa Tall Tower atmospheric measurement site in West Branch, Iowa, some 10 miles from the UI campus.


'/>"/>

Contact: Gary Galluzzo
gary-galluzzo@uiowa.edu
319-384-0009
University of Iowa
Source:Eurekalert

Related biology news :

1. Space researchers developing tool to help disoriented pilots
2. Montana State researchers receive grant to study algae as a source of biofuel
3. Einstein researchers develop a new way to study how breast cancer spreads
4. Queens University Belfast researchers trace octopuses family tree
5. UD researchers show that plants can accumulate nanoparticles in tissues
6. Clemson researchers advance nano-scale electromechanical sensors
7. Damage inflicted during cardiac attacks more widespread, MSU researchers find
8. Battling bacteria in the blood: Researchers tackle deadly infections
9. Researchers use chemical from medicinal plants to fight HIV
10. Yale researchers unravel mystery of brain aneurysms
11. Montana State University researchers find gene that regulates molds resistance to drugs
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2016)... Jan. 22, 2016 ... of the "Global Biometrics Market in ... offering. --> http://www.researchandmarkets.com/research/p74whf/global_biometrics ) ... "Global Biometrics Market in Retail Sector 2016-2020" ... --> Research and Markets ( http://www.researchandmarkets.com/research/p74whf/global_biometrics ...
(Date:1/20/2016)... 20, 2016 A market that just keeps ... from the explosion in genomics knowledge. Learn all about ... A range of dynamic trends are pushing market growth ... medicine - pharmacogenomics - pathogen evolution - next generation ... - greater understanding of the role of genetic material ...
(Date:1/20/2016)... 20, 2016  Synaptics Incorporated (NASDAQ: SYNA ... today announced sampling of S1423, its newest ClearPad ... small screen applications including smartwatches, fitness trackers, and ... and rectangular shapes, as well as thick and ... moisture on screen, while wearing gloves, and supports ...
Breaking Biology News(10 mins):
(Date:2/12/2016)... 12, 2016 MedGenome,s Commitment ... Scientific Understanding of Complex Diseases Such as Cancer, ... --> --> MedGenome, ... and a leading provider of genomics research services ... to the GenomeAsia 100K consortium as a founding ...
(Date:2/11/2016)... NEW YORK , Feb. 11, 2016  Bioethics International, ... how medicines are researched, developed, marketed and made accessible to ... BMJ Open had named the publication of the ... for 2015. The publication is also featured as one of ... published in the last year that are most frequently read. ...
(Date:2/11/2016)... , February 11, 2016 ... Corporation ("PositiveID" or "Company") (OTCQB: PSID), a life ... today that its Thermomedics subsidiary, which markets the ... its growth plan in January 2016, including entering ... increasing sequential monthly sales growth, and establishing several ...
(Date:2/10/2016)... MONTREAL , Febr. 10, 2016 /PRNewswire/ - BioAmber Inc. ... is pleased to announce that Mitsui & Co. Ltd., ... bio-based succinic acid plant, is investing an additional CDN$25 ... equity, increasing its stake from 30% to 40%.  Mitsui ... of bio-succinic acid produced in Sarnia ...
Breaking Biology Technology: