B53B:
Constraining Photosynthesis or Respiration of CO2 at Ecosystem, Regional, or Global Scales II Posters

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Session ID#: 12630

Session Description:
While net biosphere-atmosphere CO2 exchange is routinely measured at the ecosystem scale, the gross photosynthetic and respiratory fluxes are only loosely constrained at ecosystem, regional, and global scales. Uncertainty in the responses of photosynthesis and respiration to the environment at these scales is a major source of uncertainty in predictions of biosphere-atmosphere feedbacks under climate change. 

Innovations in measurements and modeling have improved our ability to distinguish respiration and photosynthesis processes on many scales, using tools such as higher resolution modeling, CO2 flux partitioning, carbonyl sulfide, solar-induced fluorescence, and isotopes. We propose a session reporting advancements in our fundamental understanding of ecosystem-atmosphere carbon exchange. We especially invite novel applications that expand the boundaries of carbon cycle science.

Primary Convener:  Mary Whelan, University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, CA, United States
Conveners:  Ian T Baker, Colorado State University, CIRA, Fort Collins, United States and Roisin Commane, Harvard University, Cambridge, MA, United States
Chairs:  Ian T Baker, Colorado State University, CIRA, Fort Collins, United States and Mary Whelan, University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, CA, United States
OSPA Liaison:  Ian T Baker, Colorado State University, CIRA, Fort Collins, United States

Cross-Listed:
  • A - Atmospheric Sciences
Index Terms:

0414 Biogeochemical cycles, processes, and modeling [BIOGEOSCIENCES]
0426 Biosphere/atmosphere interactions [BIOGEOSCIENCES]
0428 Carbon cycling [BIOGEOSCIENCES]
3322 Land/atmosphere interactions [ATMOSPHERIC PROCESSES]

Abstracts Submitted to this Session:

Carbonyl Sulfide Serves as Tattletale for Biosphere Signal (170092)
Gara Villalba, Institut de Ciències i Tecnologia Ambientals (ICTA) - Universitat Autònoma de Barcelona (UAB), Barcelona, Spain and J Elliott Campbell, University of California Merced, Merced, United States
Constraining gross primary production and ecosystem respiration estimates for North America using atmospheric observations of carbonyl sulfide (OCS) and CO2 (129701)
Wei He1,2, Weimin Ju1, Huilin Chen2,3, Wouter Peters2,4, Ivar van der Velde5, Ian T Baker6, Arlyn Andrews5, Yongguang Zhang1, Thomas Launois7, J Elliott Campbell8, Parvadha Suntharalingam9 and Stephen A Montzka5, (1)Nanjing University, International Institute for Earth System Science, Nanjing, China, (2)University of Groningen, Center for Isotope Research (CIO), Energy and Sustainability Research Institute Groningen (ESRIG), Groningen, Netherlands, (3)University of Colorado, Cooperative Institute for Research in Environmental Sciences (CIRES), Boulder, United States, (4)Wageningen University and Research Center, Department of Meteorology and Air Quality, Wageningen, Netherlands, (5)NOAA Earth System Research Lab, Boulder, CO, United States, (6)Colorado State University, CIRA, Fort Collins, United States, (7)INRA Bordeaux-Aquitaine, Villenave d'Ornon Cedex, France, (8)University of California Merced, Merced, United States, (9)University of East Anglia, School of Environmental Sciences, Norwich, United Kingdom
Satellite Measurements of Carbonyl Sulfide: A New Constraint on Tropical GPP Seasonality in Global Ecosystem Models (192995)
James Stinecipher, University of California Merced, Merced, CA, United States, J Elliott Campbell, University of California Merced, Merced, United States and Le Kuai, University of California Los Angeles, Los Angeles, CA, United States
Gridded global anthropogenic emissions inventory of carbonyl sulfide (164163)
Andrew Lee Zumkehr1, Timothy W Hilton1, Mary Whelan2 and J Elliott Campbell3, (1)University of California Merced, Merced, CA, United States, (2)University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, (3)University of California Merced, Merced, United States
Carbonyl Sulfide Fluxes from a Tall Grass Prairie Ecosystem Through a Growing Season (153709)
Benjamin Michael Alsip1, Max B Berkelhammer1, Roser Matamala2, David J Cook2 and Christopher Whelan3, (1)University of Illinois at Chicago, Earth and Environmental Sciences, Chicago, IL, United States, (2)Argonne National Laboratory, Environmental Science Division, Argonne, IL, United States, (3)University of Illinois at Chicago, Biological Sciences, Chicago, IL, United States
Comparing the carbonyl sulfide (COS) method with two carbon flux based methods of flux partitioning at a freshwater marsh (171604)
Wu Sun, University of California Los Angeles, Department of Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, Kadmiel S Maseyk, Open University, School of Environment, Earth and Ecosystem Sciences, Milton Keynes, United Kingdom, Céline Lett, NERC British Antarctic Survey, Cambridge, United Kingdom, Alejandra Pesqueira, University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, CA, United States and Ulrike Seibt, University of California Los Angeles, Department of Atmospheric and Oceanic Sciences, Los Angeles, United States
Influence of Elevated CO2 on the Carbonyl Sulfide (OCS, COS) Exchange between Plants, Soils and the Atmosphere (133623)
Rüdiger Bunk1, Thomas Behrendt2, Zhigang Yi3, Meinrat O Andreae1 and Juergen Kesselmeier4, (1)Max Planck Institute for Chemistry, Mainz, Germany, (2)Max Planck Institute for Chemistry, Biogeochemistry Department, Mainz, Germany, (3)Fujian Agriculture and Forestry University, Fuzhou, China, (4)Max Planck Inst Chemistry, Mainz, Germany
Carbonic anhydrase distribution across organisms and environments: genomic predictors for soil enzymatic fluxes of carbon cycle tracers δ18O and COS (185009)
Laura K Meredith, University of Arizona, School of Natural Resources and the Environment, Tucson, AZ, United States and Esther Singer, Joint Genome Institute, Walnut Creek, CA, United States
Δ17O Trends of Collected Atmospheric CO2 Resulting from Seasonal Changes in the Biosphere (185372)
Haiyang Kehoe, Subrata Chakraborty, Tien Le Cat Pham, Erick Alvarado and Mark H Thiemens, University of California San Diego, La Jolla, CA, United States
Mesophyll conductance and leaf carbon isotope composition of two high elevation conifers along an altitudinal gradient (190830)
Jiemin Guo1, Daniel Patrick Beverly2, Craig Cook1, Brent Ewers3 and David G Williams4, (1)University of Wyoming, Laramie, WY, United States, (2)Indiana University Bloomington, Bloomington, IN, United States, (3)University of Wyoming, Botany, Laramie, WY, United States, (4)University of Wyoming, Botany, Laramie, United States
A satellite-based model to estimate spatiotemporal variability of ecosystem respiration in Tibetan and Inner Mongolian grasslands (199105)
Rong Ge and Honglin He, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, China
Optimization of terrestrial ecosystem model parameters using atmospheric CO2 concentration data with a global carbon assimilation system (GCAS) (167406)
Zhuoqi Chen, Beijing Normal University, College of Global Change and Earth System Science, Beijing, China, Jing Chen, University of Toronto, Geography and Planning, Toronto, ON, Canada, Shupeng Zhang, Sun Yat-Sen University, School of Atmospheric Sciences, Guangzhou, China, Xiaogu Zheng, Beijing Normal University, Beijing, China and Wei Shangguan, Beijing normal university, Beijing, China

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