The Greenhouse gases Observing SATellite "IBUKI" (GOSAT) is designed to measure the concentration of major greenhouse gases from space. GOSAT was launched successfully on January 23, 2009. GOSAT Project is a joint effort promoted by the Japan Aerospace Exploration Agency (JAXA), the National Institute for Environmental Studies (NIES) and the Ministry of the Environment (MOE).
NASA ACOS (Atmospheric CO2 Observations from Space) team analyzes GOSAT observational data and retrieves global distribution of carbon dioxide (CO2). ACOS Level-2 product that contains full physics retrievals of column-averaged dry air mole fractions of CO2 (XCO2) is now publicly available. We are also planning to add other Level 2 products. NIES V02.71 Level 2 product will be added after its validation is completed.
The GHG long term trend viewer presents quick view and pick up data set of the target observation sites, where users are interested. Most of the target observations requested by the RA researchers are not included in the list.
In order to use long term trend data of the point of interest, the viewer pick up data within the circle of 10km radius.
But the following adjacent site, the viewer pick up within the circle of 1km or 2km radius.
The primary pointing system, which had been used between launch and Dec. 2014, larger pointing offset of about 5km.
Therefore, some cases include nearby target points.
GHG Long term trend viewer was developed by JAXA/EORC. We would like to thank NASA/ACOS team, JAXA GOSAT project members and NIES GOSAT project members.