B41G:
Natural Wetlands, Inland Waters, and the Global Methane Cycle: Reconciling Top-Down Atmospheric Estimates and Bottom-Up Biogeochemical Estimates of Methane Emissions Posters


Submit an Abstract to this Session


Session ID#: 53489

Session Description:
Natural wetlands are the world's largest source of methane (CH4) to the atmosphere; emissions from inland waters have not yet been comprehensively assessed and remain conflated with those of wetlands. Wetland-methane emissions estimated from bottom-up biogeochemical, process, and Earth System models are consistently larger than those derived from top-down inverse models. In addition, the 30+ bottom-up, biogeochemical studies exhibit large differences in magnitude, distribution and seasonality of emissions due primarily to differences in wetland areas and less-than-optimal use of flux observations in model development/evaluation. This session aims at reconciling these long-standing inconsistencies. We invite novel investigations that reconcile the bottom-up process view with the top-down atmospheric perspective; link tower, aircraft and satellite observations with process understanding; wetland/lake definitions/characterization and their influence on modeled emissions; balancing model complexity with data availability; and highlighting remaining gaps and future directions.
Primary Convener:  Elaine Matthews, NASA Goddard Institute for Space Studies, 2880 Broadway, New York, NY, United States
Conveners:  Elaine Matthews, NASA Goddard Institute for Space Studies, 2880 Broadway, New York, NY, United States, Dr. Ruth K Varner, PhD, University of New Hampshire, Department of Earth Sciences, Durham, United States and Lori Bruhwiler, NOAA, Global Monitoring Laboratory, Boulder, United States
Primary Liaison:  Elaine Matthews, NASA Goddard Institute for Space Studies, 2880 Broadway, New York, NY, United States
Chairs:  Elaine Matthews, NASA, Ames Research Center, Moffett Field, CA, United States and Lori Bruhwiler, NOAA, Global Monitoring Laboratory, Boulder, United States
OSPA Liaison:  Dr. Ruth K Varner, PhD, University of New Hampshire, Department of Earth Sciences, Durham, United States
Co-Organized with:
Biogeosciences, and Hydrology

Proposed Co-Organized Session with:
  • A - Atmospheric Sciences
  • C - Cryosphere
  • GC - Global Environmental Change
  • H - Hydrology
Index Terms:

0365 Troposphere: composition and chemistry [ATMOSPHERIC COMPOSITION AND STRUCTURE]
0428 Carbon cycling [BIOGEOSCIENCES]
0475 Permafrost, cryosphere, and high-latitude processes [BIOGEOSCIENCES]
0497 Wetlands [BIOGEOSCIENCES]

Abstracts Submitted to this Session:

Modelling peatland methane emissions using macroscopic invasion percolation (418508)
Caroline Ceri Wisheart, Queen's University, Kingston, ON, Canada, Kevin Mumford, Queen's University, Department of Civil Engineering, Kingston, ON, Canada, Lee D Slater, Rutgers University, Department of Earth and Environmental Sciences, Newark, United States and Xi Chen, Rutgers University, Department of Earth & Environmental Sciences, Newark, NJ, United States
Evidence of methanogenesis related to the past fish farming in Lake Soyang (432104)
Dong-Hun Lee, Division of Earth and Environment al System Sciences, PukyungNational University, Busan, South Korea, Jung-Hyun Kim, Korea Polar Research Institute, Incheon, South Korea, Sujin Kang, Hanyang University, Ansan, South Korea, Beom-Chul Kim, kwangwon National University, Chuncheon, South Korea and Kyung-Hoon Shin, Hanyang University, Department of Marine Sciences and Convergent Technology, Ansan, South Korea
Peatland methane emission driven by interaction of soil temperature and water table (468716)
Rachel Sophia Lonchar, University of Minnesota Twin Cities, St. Anthony Falls Laboratory, Minneapolis, MN, United States, Malte Julian Deventer, University of Minnesota Twin Cities, Minneapolis, MN, United States, Timothy J Griffis, University of Minnesota Twin Cities, Department of Soil, Water, and Climate, St. Paul, United States, Randy Kolka, USDA Forest Service Northern Research Station, Grand Rapids, United States, Gene-Hua Crystal Ng, University of Minnesota Twin Cities, Department of Earth and Environmental Sciences and Saint Anthony Falls Laboratory, Minneapolis, United States, Tyler D Roman, USDA Forest Service Northern Research Station, Grand Rapids, MN, United States, Stephen D Sebestyen, USDA Forest Service, Vallejo, CA, United States and Xue Feng, University of Minnesota Twin Cities, Department of Civil, Environmental, and Geo-Engineering, Minneapolis, United States
Methane emissions from high-latitude wetlands: a full annual cycle of emissions using a new wetland data set, gorwing- and off-season flux observations and satellite-derived freeze-thaw dynamics (455115)
Elaine Matthews, NASA Goddard Institute for Space Studies, 2880 Broadway, New York, NY, United States, Claire C Treat, University of Eastern Finland, Joensuu, Finland and Joy Romanski, Columbia University of New York/NASA GISS, New York, NM, United States
Drivers of diffusive lake CH4 emissions on daily to multi-year time scales (432973)
Joachim Jansen1, Brett Thornton2, Lise Johnsson3, Kristian Andersson1, Martin Wik2, David Olefeldt4, Nigel T Roulet5, Sally MacIntyre6 and Patrick M Crill7, (1)Stockholm University, Department of Geological Sciences, Stockholm, Sweden, (2)Stockholm University, Dept. of Geological Sciences, Stockholm, Sweden, (3)Lund University, Lund, Sweden, (4)University of Alberta, Edmonton, AB, Canada, (5)McGill University, Montreal, QC, Canada, (6)University of California Santa Barbara, Marine Science Institute, Santa Barbara, CA, United States, (7)Stockholm University, Stockholm, Sweden
Do permeable mineral deposits regulate peatland hydrology to locally preserve methane emissions from eccentric bogs? (423810)
Xi Chen, Rutgers University, Department of Earth & Environmental Sciences, Newark, NJ, United States, Xavier Comas, Florida International University, Earth and Environment, Miami, FL, United States, Zhongjie Yu, University of Illinois Urbana-Champaign, Urbana, United States, Andrew S Reeve, University of Maine, Dept. of Geological Sciences, Orono, ME, United States and Lee D Slater, Rutgers University, Department of Earth and Environmental Sciences, Newark, United States
Relationship between methane flux and carbon uptake in three cosmopolitan wetland plant genera (401396)
Jorge A Villa, University of Louisiana at Lafayette, School of Geosciences, Lafayette, United States, Taylor Stephen, University of Maryland Baltimore County, Department of Chemical, Biochemical and Environmental Engineering, Catonsville, United States, Camilo Rey-Sanchez, North Carolina State University, Raleigh, United States and Gil Bohrer, The Ohio State University, Department of Civil, Environmental and Geodetic Engineering, Columbus, United States
Patterns of porewater methane concentration and atmospheric emissions within different sites of a peat bog in Ohio (459261)
Camilo Rey-Sanchez1, Matt Davies2, Julie Slater2, Virginia Isabel Rich3, Yushan Hao2, Gil Bohrer4 and Roger Grau-Andres2, (1)North Carolina State University, Raleigh, United States, (2)Ohio State University Main Campus, Columbus, United States, (3)Ohio State University, Department of Microbiology, Columbus, United States, (4)The Ohio State University, Department of Civil, Environmental and Geodetic Engineering, Columbus, United States
Quantifying the bottom-up influence on methane dynamics in one Mackenzie River (Canada) Delta lake with time-series measurements over two years (2015-2017) (437503)
Hadley McIntosh Marcek1, Laura Lapham2, Beth Orcutt3, Charles Geoffrey Wheat4, Trevor Fournier5, Lance Lesack6, Kimberly Geeves6 and Mitchell Bergstresser6, (1)University of Maryland (UMCES CBL), Solomons, MD, United States, (2)UMCES, Chesapeake Bio. Lab, Solomons, United States, (3)Bigelow Laboratory for Ocean Sciences, East Boothbay, United States, (4)Moss Landing Marine Laboratories, Moss Landing, United States, (5)University of Alaska Fairbanks, IMS, Moss Landing, CA, United States, (6)Simon Fraser University, Burnaby, BC, Canada
Structural Changes in Peat Soil Layering Dictate the Vertical Distribution and Dynamics of Biogenic Gases (425162)
Troy Bole, Florida Atlantic University, Boca Raton, FL, United States, Xavier Comas, Florida International University, Earth and Environment, Miami, FL, United States and William Wright, WrightPSM, Deerfield Beach, FL, United States
Scaling up field measurements of methane fluxes from forested wetlands using inundation time series (458826)
Kelly Hondula1,2, Ben DeVries3, C. Nathan Jones1,4 and Margaret Palmer5, (1)University of Maryland College Park, College Park, MD, United States, (2)National Socio-Environmental Synthesis Center (SESYNC), Univ of MD, Annapolis, MD, United States, (3)University of Maryland College Park, Department of Geographical Sciences, College Park, United States, (4)National Socio-Environmental Synthesis Center (SESYNC), Univ of MD, Annapolis, United States, (5)National Socio-Environmental Synthesis Center (SESYNC), Annapolis, United States
Autochthonous carbon from submerged aquatic vegetation fuels methane production in lake sediments (467457)
Dr. Ruth K Varner, PhD, University of New Hampshire Main Campus, Department of Earth Sciences and Institute for the Study of Earth, Oceans, and Space, Durham, NH, United States, Christopher Daniel Horruitiner, University of Florida, Ft Walton Beach, FL, United States, Michael W Palace, University of New Hampshire, Dept. of Earth Sciences and Earth Systems Research Center, Durham, United States, Martin Wik, Stockholm University, Dept. of Geological Sciences, Stockholm, Sweden and Joel E Johnson, University of New Hampshire, Dept. of Earth Sciences, Durham, United States
The effects of pH, temperature, and DOM on anaerobic carbon mineralization and methanogenic efficiencyin ombrotrophic and minerotrophic Alaskan peatlands (448705)
Xiao Liu, University of Massachusetts Lowell, Biological Science, Lowell, MA, United States, Mark E Hines, Univ Massachusetts Lowell, Lowell, MA, United States and Lin Zhang, Texas A&M University Corpus Christi, Corpus Christi, TX, United States
Using stable isotope analysis of methane in the bubbles and sediment porewater of ponds to determine methane production pathways (458676)
Kathryn A Bennett, University of New Hampshire Main Campus, Earth Sciences, Durham, United States, Sophia A Burke, University of New Hampshire Main Campus, Department of Earth Sciences and Institute for the Study of Earth, Oceans, and Space, Durham, United States, Carmody K McCalley, Rochester Institute of Technology, School of Life Sciences, Rochester, NY, United States, Michael W Palace, University of New Hampshire, Dept. of Earth Sciences and Earth Systems Research Center, Durham, United States, Patrick M Crill, Stockholm University, Stockholm, Sweden and Dr. Ruth K Varner, PhD, University of New Hampshire, Department of Earth Sciences, Durham, United States
Vegetation Characterization of UAS-borne Hyperspectral Imagery from an Arctic peatland in Central Interior Alaska (465864)
Franklin Sullivan1, Michael W Palace2, Jessica Lynn DelGreco1, Christina Herrick3, Sophia A Burke4, Louis J Lamit5 and Dr. Ruth K Varner, PhD6, (1)University of New Hampshire Main Campus, Durham, NH, United States, (2)University of New Hampshire, Dept. of Earth Sciences and Earth Systems Research Center, Durham, United States, (3)University of New Hampshire, Earth Systems Research Center, Durham, United States, (4)University of New Hampshire Main Campus, Department of Earth Sciences and Institute for the Study of Earth, Oceans, and Space, Durham, United States, (5)Michigan Technological University, School of Forest Resources and Environmental Science, Houghton, MI, United States, (6)University of New Hampshire, Department of Earth Sciences, Durham, United States
Earth, Wind and Mire: Utilizing low sun angle to enhance topographic estimation related to vegetation cover classes and methane flux (452921)
Michael W Palace1, Jessica Lynn DelGreco2, Franklin Sullivan3, Christina Herrick3 and Dr. Ruth K Varner, PhD1, (1)University of New Hampshire, Department of Earth Sciences, Durham, United States, (2)University of New Hampshire Main Campus, Durham, NH, United States, (3)University of New Hampshire, Earth Systems Research Center, Durham, United States

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