5:15 PM - 6:45 PM
[MSD35-P02] Mission on monitoring and elucidating global environmental changes (global radiative forcing and ecosystem changes that affect global warming) (successor to GCOM-C)
Keywords:Global environmental change, GCOM-C, SGLI, J-train
The purpose of this proposal is to monitor and clarify global environmental changes (global radiative forcing and ecosystem changes that affect global warming) through long-term, continuous quantitative monitoring. Optical (near ultraviolet to thermal infrared) imager technology is a fundamental technology that can be developed into new optical sensors in the future, and must be continued in order to maintain global dominance. It has already been in operation since 2018, and has successfully completed the regular operation review meeting at the end of 2022, achieving great results. The satellite itself will remain operational for another 11 years, and further results are expected in the future. We are also trying to establish a position as a social infrastructure as a satellite that brings information on the global environment.
By monitoring with a wide range of wavelengths, optical imagers, which are part of the SGLI family, can monitor changes in the climate system due to global warming, including changes that are not currently anticipated. In addition, by accurately understanding the progress of predicted climate change, it will be possible to evaluate the effectiveness of global warming control policies, formulate adaptation measures for the future, and make diagnostic course corrections. . By having its own information source as a sensor in its own country, Japan can have its own information for determining the status of climate change, and can also disseminate information to the world as world standard information, which can be used as an international strategy for climate change. can have. Furthermore, by making observations using multiple J-train type satellite constellations (the core satellites listed in Meteorological Research Note No. 234, "Analysis of global trends related to future plans for Earth observation", pages 16-18), Japan's Earth observation It will help raise the level of the space industry. JAXA's next GCOM-C study includes the J Train concept, and the GCOM-C We are proceeding with discussions on enriching and prioritizing the goals that have been raised. Based on the track record of the GCOM series, it is necessary to assume that the operational period of the core satellite is approximately 10 years. The extended operation period (approximately three times that of conventional systems) is expected to have a significant effect on long-term data acquisition and cost reduction. However, it cannot be denied that the decrease in development opportunities will also increase the risk of losing opportunities to introduce new technology and related human resources. Therefore, we propose to test challenging functions on multiple small satellites, conduct demonstration experiments during the launch of a core satellite (over 10 years), and add new functions that have already been technically proven to the next core satellite. . Of course, it is expected that new scientific results will be obtained through combined use with existing core satellites during demonstration experiments, and that it will also contribute to the development and maintenance of related human resources. Currently, GCOM-C related researchers are considering challenging observation plans (hyper, wide-angle polarization observations, etc.).
By monitoring with a wide range of wavelengths, optical imagers, which are part of the SGLI family, can monitor changes in the climate system due to global warming, including changes that are not currently anticipated. In addition, by accurately understanding the progress of predicted climate change, it will be possible to evaluate the effectiveness of global warming control policies, formulate adaptation measures for the future, and make diagnostic course corrections. . By having its own information source as a sensor in its own country, Japan can have its own information for determining the status of climate change, and can also disseminate information to the world as world standard information, which can be used as an international strategy for climate change. can have. Furthermore, by making observations using multiple J-train type satellite constellations (the core satellites listed in Meteorological Research Note No. 234, "Analysis of global trends related to future plans for Earth observation", pages 16-18), Japan's Earth observation It will help raise the level of the space industry. JAXA's next GCOM-C study includes the J Train concept, and the GCOM-C We are proceeding with discussions on enriching and prioritizing the goals that have been raised. Based on the track record of the GCOM series, it is necessary to assume that the operational period of the core satellite is approximately 10 years. The extended operation period (approximately three times that of conventional systems) is expected to have a significant effect on long-term data acquisition and cost reduction. However, it cannot be denied that the decrease in development opportunities will also increase the risk of losing opportunities to introduce new technology and related human resources. Therefore, we propose to test challenging functions on multiple small satellites, conduct demonstration experiments during the launch of a core satellite (over 10 years), and add new functions that have already been technically proven to the next core satellite. . Of course, it is expected that new scientific results will be obtained through combined use with existing core satellites during demonstration experiments, and that it will also contribute to the development and maintenance of related human resources. Currently, GCOM-C related researchers are considering challenging observation plans (hyper, wide-angle polarization observations, etc.).