Monitoring of Greenhouse Gases

CGER is conducting various projects on monitoring about temporal change and spacial distribution of greenhouse gases such as carbon dioxide and methane in the atmosphere, to reveal the amount and distribution of carbon sources and sinks.

Asia-Pacific Monitoring Sites
This website provides information on observations which have been conducted by NIES and other collaborators for greenhouse gases, air pollutants, and related parameters in the Asia-Pacific region. Observations based on ground stations are categorized into atmosphere monitoring and ecosystem monitoring. Users can easily obtain information on observation sites by selecting observation parameters of their interest or by designating an observation area on the map. For aircraft and ship observations, the annual flight and cruise tracks are provided on this website. The main goals of this site are to promote the effective utilization of observational data and to promote international joint research.
GHGs monitoring at Hateruma Island and Cape Ochi-ishi
A project to monitor the long-term trend of greenhouse gasses (GHGs) at Hateruma station in Okinawa and Cape Ochi-ishi station in Hokkaido. GHGs at these stations are thought to be less affected by human activities. Monitoring is ongoing and the data are released on "The Greenhouse Gases Trend Update (GGTU)" site.
Carbon Balance Monitoring on Terrestrial Ecosystem
A project aimed at the assessment of carbon clance related functions of forest ecosystem, and validation and evaluation of observational methods. Since 2000, quantitative observations of various functions of forest ecosystem, such as carbon balance measurement using eddy correlation method at larch forests in Tomakomai, Hokkaido, have been conducted.
Monitoring of the Atmospere-Ocean CO2 Exchange by Ships-of-Opportunity
A project on carbon flux (absorption/emission) in north Pacific. With the support of shipping lines, the observation equipments has been installed in their ships and continuing measurements since 1992.
The Greenhouse Gases Trend Update (GGTU)
The Greenhouse Gases Trend Update (GGTU) is part of the Global Greenhouse Gases Database (G3DB) of CGER, providing quick access to greenhouse gases concentrations from monitoring stations of CGER. Now hourly data for CO2 concentration from Hateruma and Ochiishi stations are being updated to GGTU database in real time. The daily means are then calculated from hourly data and used to analyze long-term trend and to estimate annual increase rate. From this site you can see the most up-to-date annual CO2 increase rate; CO2 concentrations of daily mean, weekly mean, monthly mean, and annual mean; and hourly variations of CO2 concentrations in the past week, month, and year.
AsiaFlux Website
Stations network to conduct long term continual observation of carbon dioxide, steam, and the thermal energy exchanged between the ecosystem and the atmosphere using micromoeteological technique. This network established at 1999. There are administration office in Japan (National Institute for Environmental Studies), Korea (Yonsei University) and china (Chinese Academy of Sciences). These office conducts some activities like the spread of observation technologies and the provision of data. NIES does not control this website.
GOSAT Project (Greenhouse gases Observation SATellite "IBUKI")
GOSAT is the world's first satellite designed specifically to monitor greenhouse gases from space. The satellite has continued to fulfill its main mission in monitoring atmospheric carbon dioxide (CO2) and methane (CH4) concentrations from space to improve the accuracy of sink/source estimates, since its launch on January 23, 2009. Information of the GOSAT Project, related news, and the GOSAT data products are described and provided via this website and a linked website.
NIES GOSAT-2 Project (Greenhouse gases Observation SATellite 2)
The website of NIES GOSAT-2 Project. GOSAT-2 is a follow-on satellite of GOSAT(Greenhouse gases Observation SATellite) jointly developed by Ministry of the Environment, Japan Aerospace Exploration Agency, and NIES and will be launch in FY2017. NIES GOSAT-2 Project is mainly responsible for the generation, distribution, and validation of GOSAT-2 higher level products.