B072
Methane dynamics in warming permafrost

Session ID#: 81131

Session Description:
Methane is a powerful greenhouse gas which is responsible for 16% of global warming effects due to its high global warming potential. But large uncertainty is linked to current estimates of regional and global natural sources and sinks of CH4 flux.

The overall goal of the session is to understand the role of methane in regional carbon budgets. As methane are expected to play a key role in the widely discussed permafrost-climate feedback loop, there is an urgent need (1) to enhance the understanding of methane-carbon flux processes, and (2) to discuss their influence on the Earth system. This session highlights the role of potential methane sink or source in a warming permafrost and their significance in the regional carbon cycle.

We welcome contributions from field-based studies on methane flux monitoring programs, remote sensing, and especially interdisciplinary efforts combining different natural science disciplines or natural and social sciences.

Index Terms:

0428 Carbon cycling [BIOGEOSCIENCES]
0429 Climate dynamics [BIOGEOSCIENCES]
0702 Permafrost [CRYOSPHERE]
0718 Tundra [CRYOSPHERE]

Primary Convener:  Hanbo Yun, Purdue University, West Lafayette, IN, United States
Conveners:  Anping Chen, Colora do State University, Fort Collins, CO, United States and Qianlai Zhuang, Purdue University, Department of Earth, Atmospheric, and Planetary Sciences, West Lafayette, IN, United States
Primary Liaison:  Youmi Oh, Princeton University, Princeton, NJ, United States
 
Patterns and drivers of potential methane oxidation and production rates across Tibetan alpine permafrost region (505109)
Qiwen Zhang, IB Institute of Botany, Chinese Academy of Sciences, Beijing, China, Yuanhe Yang, Chinese Academy of Sciences, Beijing, China and Dianye Zhang, Institute of Botany, Chinese Academy of Sciences, Beijing, China
 
Methanogens Driving Methane Production from the Active Layer and Permafrost Soils on the Tibetan Plateau (505125)
Yutong Song, Institude of Botany, Chinese Academy of Sciences, Beijing, China and Yuanhe Yang, Chinese Academy of Sciences, Beijing, China
 
High thaw lake Methane emissions at the permafrost of Qinghai Tibet plateau (561485)
Hanbo Yun, Purdue University, West Lafayette, IN, United States, Qingbai Wu and Anping Chen, Colora do State University, Fort Collins, CO, United States
 
Improved Simulation of Cold-season Methane Emissions over Alaska’s Permafrost with the E3SM Land Model (ELM) (581135)
Jing Tao1,2, Qing Zhu1, William J Riley1, Rebecca Bergquist Neumann3 and Gautam Bisht4, (1)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (2)University of Washington Seattle Campus, Civil and Environmental Engineering, Seattle, WA, United States, (3)University of Washington, Seattle, WA, United States, (4)Pacific Northwest National Laboratory, Richland, WA, United States
 
Using stable isotopes to determine dominant methane production pathways of thaw ponds in a subarctic peatland (616045)
Kathryn A Bennett1, Sophia A Burke2, Carmody K McCalley3, Jessica DelGreco4, Michael W Palace4, Patrick M Crill5 and Ruth K Varner6, (1)University of New Hampshire Main Campus, Earth Sciences, Durham, NH, United States, (2)University of New Hampshire Main Campus, Durham, NH, United States, (3)Rochester Institute of Technology, Rochester, NY, United States, (4)University of New Hampshire, Dept. of Earth Sciences and Earth Systems Research Center, Durham, NH, United States, (5)Stockholm University, Stockholm, Sweden, (6)University of New Hampshire, Durham, NH, United States
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