Surface-Atmosphere Carbon Exchange from an Arctic Wetland

Monday, 15 December 2014: 5:15 PM
John Kochendorfer1, Mark Heuer2, Edward J Dumas2, Tilden P Meyers2, Ronald Dobosy3, Bruce Baker3, Claire E Healy4, Jason Brent Munster4, David S Sayres4 and James G Anderson4, (1)NOAA Oak Ridge, Atmospheric Turbulence and Diffusion Division, Oak Ridge, TN, United States, (2)NOAA/ATDD, Oak Ridge, TN, United States, (3)NOAA Oak Ridge, Oak Ridge, TN, United States, (4)Harvard University, Cambridge, MA, United States
Uncertainty in the fate of carbon stored in permafrost soils is a significant source of uncertainty in predicting the future climate of the earth. In this study methane and carbon dioxide fluxes from a permafrost region on the North Slope of Alaska were measured using eddy covariance during two successive growing seasons. The relationship between these carbon fluxes and climate variables such as incoming photosynthetically active radiation, air temperature, water table depth, soil moisture, and soil temperature was explored to better understand the mechanisms that determine the net exchange of greenhouse gases between an arctic wetland and the atmosphere.