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:4/28/2016)... and BANGALORE, India , April 28, 2016 ... a product subsidiary of Infosys (NYSE: INFY ), ... a global partnership that will provide end customers ... mobile banking and payment services.      (Logo: ... innovation area for financial services, but it also plays a ...
(Date:4/15/2016)... April 15, 2016  A new partnership announced ... accurate underwriting decisions in a fraction of the ... priced and high-value life insurance policies to consumers ... With Force Diagnostics, rapid testing (A1C, Cotinine ... readings (blood pressure, weight, pulse, BMI, and activity ...
(Date:3/31/2016)... , March 31, 2016  Genomics firm Nabsys has ... CEO, Barrett Bready , M.D., who returned to ... the original technical leadership team, including Chief Technology Officer, ... Product Development, Steve Nurnberg and Vice President of Software ... the company. Dr. Bready served as CEO ...
Breaking Biology News(10 mins):
(Date:6/24/2016)... 24, 2016 Epic Sciences unveiled a ... susceptible to PARP inhibitors by targeting homologous recombination ... The new test has already been incorporated into ... cancer types. Over 230 clinical trials ... pathways, including PARP, ATM, ATR, DNA-PK and WEE-1. ...
(Date:6/23/2016)... WI (PRWEB) , ... June 23, 2016 , ... ... supplements, is pleased to announce the launch of their brand, UP4™ Probiotics, into ... for over 35 years, is proud to add Target to its list of ...
(Date:6/23/2016)... -- Houston Methodist Willowbrook Hospital has signed a ... serve as their official health care provider. As ... provide sponsorship support, athletic training services, and most ... athletes and families. "We are excited ... to bring Houston Methodist quality services and programs ...
(Date:6/23/2016)... FRANCISCO , June 23, 2016   EpiBiome ... has secured $1 million in debt financing from Silicon ... ramp up automation and to advance its drug development ... its new facility. "SVB has been an ... beyond the services a traditional bank would provide," said ...
Breaking Biology Technology: