Joint Observations with NASA for GOSAT-GW Data Verification - Observing Greenhouse Gas Sources in Metropolitan Tokyo from the Sky -

<Simultaneous announcement with the National Institute for Environmental Studies (NIES) and
 Japan Agency for Marine-Earth Science and Technology (JAMSTEC) >
 
1. The Ministry of the Environment of Japan is supporting the Tokyo-Field Campaign (TOKYO-FC) conducted by a research team from the National Institute for Environmental Studies (NIES), the Japan Agency for Marine-Earth Science and Technology (JAMSTEC), and the National Aeronautics and Space Administration (NASA).
 
2. In TOKYO-FC, two aircraft - one from the United States and one from Japan - equipped with greenhouse gas observation instruments will conduct coordinated flights over major emission sources such as large metropolitan areas, industrial zones, and power plants in Japan. These flights are conducted to validate data from the Global Observing SATellite for Greenhouse gases and Water cycle “IBUKI-GW” (GOSAT-GW).
 
3. The observational data obtained through TOKYO-FC, together with ground-based measurements, will be used to verify the accuracy of GOSAT-GW data.  Following calibration and validation processes to ensure data quality, Level 2 products of GOSAT-GW are scheduled to be released to the public in spring 2027.