Wednesday, July 27, 2016

Data-based perfect-deficit approach to understanding climate extremes and forest carbon assimilation capacity

Research supported by CPO’s Modeling, Analysis, Prediction, and Projections (MAPP) program was published into the May edition of Environmental Research Letters.    

Several lines of evidence suggest that the warming climate plays a vital role in driving certain types of extreme weather, yet the impact of warming and of extreme weather on forest carbon assimilation capacity is poorly known. Filling this knowledge gap is critical towards understanding the amount of carbon that forests can hold.

The researchers used a perfect-deficit approach to identify forest canopy photosynthetic capacity (CPC) deficits and analyze how they correlate to climate extremes, based on observational data measured by the eddy covariance method at 27 forest sites over 146 site-years.

They found that droughts severely affect the carbon assimilation capacities of evergreen broadleaf forest (EBF) and deciduous broadleaf forest. The carbon assimilation capacities of Mediterranean forests were highly sensitive to climate extremes, while marine forest climates tended to be insensitive to climate extremes.

The researchers' estimates suggest an average global reduction of forest CPC due to unfavorable climate extremes of 6.3 Pg C (~5.2% of global gross primary production) per growing season over 2001–2010, with EBFs contributing 52% of the total reduction.

To view the paper online, visit: http://iopscience.iop.org/1748-9326/9/6/065002.

Monday, June 23, 2014/Categories: MAPP News, General News, Climate.gov RSS

Number of views (4187)/Comments (0)

About the Climate Program Office

The Climate Program Office (CPO) manages competitive research programs in which NOAA funds high-priority climate science, assessments, decision support research, outreach, education, and capacity-building activities designed to advance our understanding of Earth’s climate system, and to foster the application of this knowledge in risk management and adaptation efforts.  CPO-supported research is conducted in regions across the United States, at national and international scales, and globally.  Learn more...

Events Calendar

7/29/2016 1:00 PM - 2:00 PM

MAPP Programmatic Webinar: The MAPP Program and its FY 2017 Funding Opportunities

In this webinar, we will present on the OAR Climate Program Office, Modeling, Analysis, Predictions and Projections (MAPP) program and its FY 2017 funding opportunities, and hold a Q&A session on program, competitions, and application process. We will provide an overview of the program, including our function within the Climate Program Office and NOAA, our research focus areas, and ways that we partner with other programs within and outside of NOAA. We will describe the two new FY 2017 competitions, which have just been published at cpo.noaa.gov and released on Grants.gov. Finally, we will discuss the process of applying to MAPP competitions and will include personal tips for putting together a strong application. We will close the webinar with a Q&A session, in which we will answer your questions of general interest in real time via the chat function in WebEx.