Tue. May 23, 2017 9:00 AM - 10:30 AM 301B (International Conference Hall 3F)

convener:Nobuko Saigusa(National Institute for Environmental Studies), Prabir Patra(Research Institute for Global Change, JAMSTEC), Toshinobu Machida(National Institute for Environmental Studies), David Crisp(Jet Propulsion Laboratory), Chairperson:Toshinobu Machida(National Institute for Environmental Studies)

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. The Paris agreement is aimed at reduction of greenhouse gases (GHGs) emission for keeping the global warming below 2oC. The commitments and progresses of each country commitments 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 inventories of emissions have also been prepared at greater resolution in space and time. However, due to uncertainties in modeling tools, and limited observational data coverage, high uncertainty still remains in global or regional sources/sinks estimations.



Developing integrated observation and analysis systems for GHGs are the most urgent tasks and short-lived air pollutants plays critical role in cycling of GHGs. Therefore atmospheric transport modeling, inverse modeling, and assimilation methods should be tested and improved for process level understanding of regional fluxes of GHGs as well as the air pollutants. All results should be complemented by the both "top-down" approach (with inverse models) and "bottom-up" approach (with surface flux/emission data and ground-based models).



The purpose of the session is to discuss state-of-the-art techniques for estimations of surface emission of GHGs and air pollutants. Ideally the results should allow us to detect any changes that might be appearing globally and in the Asia-Pacific region under the changing climate and human activity, and to disseminate scientific knowledge for developing emission mitigation policies in a timely manner. Improved estimates of emissions from land use change, fires, and other anthropogenic sources should be addressed. We also welcome discussions for future studies targeting city and country scale emission issues.