Japan Geoscience Union Meeting 2018

Session information

[EE] Evening Poster

A (Atmospheric and Hydrospheric Sciences) » A-CG Complex & General

[A-CG35] Global Carbon Cycle Observation and Analysis

Tue. May 22, 2018 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

convener:Kazuhito Ichii(Chiba University), Prabir Patra(Research Institute for Global Change, JAMSTEC), Toshinobu Machida(国立環境研究所, 共同), David Crisp(Jet Propulsion Laboratory)

The Paris Agreement under the United Nations Framework Convention on Climate Change (UNFCCC) is a landmark agreement in the 21st Conference of the Parties (COP21) in December 2016, which aims at reduction of greenhouse gases (GHGs) emission for keeping the global warming below 2 degC. The national commitments and progresses should be carefully monitored and verified by international bodies.

In recent years, the number of observational platforms for monitoring atmospheric GHGs and air pollution species is increasing. National or regional emission inventories have also been prepared at greater resolution in space and time using different methodologies. However, due to uncertainties in modeling and sparse observation network, high uncertainty persists in global and regional sources/sinks estimations, particularly for CO2.

Developing integrated observation and analysis systems for GHGs are the most urgent tasks. Atmospheric transport models, inverse models, and process-based bottom-up models should be tested and improved. The "top-down" (with inverse models) and "bottom-up" (with surface flux/emission network data and ground-based models) estimations have to be reconciled for gaining confidence in verifying the national commitments.

The purpose of the session is to discuss state-of-the-art techniques for estimations of surface budget of GHGs and air pollutants. Ideally, these results would allow us to detect changes at an early stage under the changing climate and human activity, and to disseminate scientific knowledge for mitigation policies in a timely manner. Improved estimates of emissions from land use change, forest fires, and other anthropogenic sources (urban developments and thermal power station etc.) should be addressed. We also welcome discussions for designs and plans for future studies targeting city and country scale emission estimations using sophisticated modeling tools.

*Masayuki Kondo1, Kazuhito Ichii1,3, Prabir K Patra2, Joseph G Canadell4, Benjamin Poulter5, Leonardo Calle5, Stephen Sitch6, Tazu Saeki3, Nobuko Saigusa3 (1. Center for Environmental Remote Sensing, Chiba University, 2.Japan Agency for Marine-Earth Science and Technology, Japan, 3.National Institute for Environmental Studies, 4.Global Carbon Project, CSIRO Marine and Atmospheric Research, 5.Montana State University, 6.University of Exeter)

*Aki Tsuruta1, Tuula Aalto1, Leif Backman1, Sebastian Lienert2, Fortunat Joos2, Edward Dlugokencky9, Tuomas Laurila1, Juha Hatakka1, Martin Heimann8, Doug Worthy10, Mika Aurela1, Annalea Lohila1, Joshua F. Dean3, Thomas Friborg5, Jutta Holst4, Elyn Humphreys7, Järvi Järveoja6, Mats B Nilsson6, Matthias Peichl6 (1.Finnish Meteorological Institute, Climate Research Programme, 2.University of Bern, Climate and Environmental Physics, Physics Institute & Oeschger Centre for Climate Change Research, 3.Vrije Universiteit Amsterdam, Faculty of Science, Department of Earth Sciences, 4. Lund University, Institutionen för Naturgeografi och ekosystemvetenskap (INES), Department of Physical Geography and Ecosystem Science, 5.University of Copenhagen, Department of Geosciences and Natural Resource Management, 6.Swedish University of Agricultural Sciences, Department of Forest Ecology & Management, 7.Carleton University, Department of Geography and Environmental Studies, 8.Max Planck Institute for Biogeochemistry, 9.NOAA Earth System Research Laboratory, Global Monitoring Division, 10.Environment and Climate Change Canada)

*Ryo Fujita1, Shamil Maksyutov2, Shinji Morimoto1, Shuji Aoki1, Takakiyo Nakazawa1, Heon-Sook Kim3, Taku Umezawa2, Daisuke Goto4, Motoki Sasakawa2, Toshinobu Machida2 (1.Center for Atmospheric and Oceanic Studies, Graduate School of Science, Tohoku University, 2.National Institute for Environmental Studies, 3.Pusan National University, 4.National Institute of Polar Research)




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