Japan Geoscience Union Meeting 2016

Presentation information

International Session (Poster)

Symbol A (Atmospheric and Hydrospheric Sciences) » A-AS Atmospheric Sciences, Meteorology & Atmospheric Environment

[A-AS01] Global Carbon Cycle Observation and Analysis

Tue. May 24, 2016 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall HALL6)

Convener:*Nobuko Saigusa(National Institute for Environmental Studies), Prabir Patra(Research Institute for Global Change, JAMSTEC), Toshinobu Machida(National Institute for Environmental Studies), Satoru Chatani(National Institute for Environmental Studies)

5:15 PM - 6:30 PM

[AAS01-P11] Synthesis of top-down and bottom-up estimations of terrestrial CO2 budget in Asia

*Kazuhito Ichii1,2, Masayuki Kondo1, Prabir Patra1, Tazu Saeki1, Takashi Maki3, Takashi Nakamura4, Yosuke Niwa3, Masahito Ueyama5, Masato Hayashi2, Habura Borjigin2, Yuji Yanagi1, Nobuko Saigusa2, Asia-MIP Group (1.Japan Agency for Marine-Earth Science and Technology, 2.National Institute for Environmental Studies, 3.Meteorological Research Institute, 4.Japan Meteorological Agency, 5.Osaka Prefecture University)

Keywords:Terrestrial, Synthesis, Carbon Dioxide

In the framework of Environment Research and Technology Development Funds (2-1401) from the Ministry of the Environment of Japan, we initiated synthesis analysis toward better estimations and understandings of terrestrial CO2 budget in Asia. We used multiple different data products such as atmospheric inverse analysis (top-down estimation), terrestrial ecosystem models, remote sensing data, and data-driven models (bottom-up estimation). Our analysis focuses on (1) inter-decadal changes in terrestrial CO2 fluxes at continental scales (Asia and Siberia), (2) testing consistency of terrestrial sink magnitude between top-down and bottom-up estimations in Asia, and (3) detection and analysis of ‘hotspot’ of terrestrial CO2 budget changes in Siberia and tropical Asia. We will show these progresses, and discuss future direction of these studies.
This study was supported by the Environment Research and Technology Development Funds (2-1401) from the Ministry of the Environment of Japan, and the JSPS KAKENHI (grant No. 25281003).