2:00 PM - 2:15 PM
[MSD35-02] GHGs/SLCFs Measurement and Emission Assessment from Geostationary Orbit over Asia
Keywords:short-lived climate forcers (SLCFs), geostationary satellite
In recent years, not only global warming but also global air pollution, droughts, and extreme weather events such as massive floods have become urgent global challenges requiring immediate solutions. In particular, air pollution and flood damage are severe in the Asian region, while Indonesia frequently experiences large-scale forest fires.
This proposal aims to observe short-lived climate forcers (SLCFs), which are major air pollutants, as well as greenhouse gases (GHGs) such as CO2, alongside existing thermal infrared geostationary satellite observations. By utilizing hyperspectral measurements, we aim to achieve an unparalleled kilometer-scale resolution, enabling real-time and objective analysis of concentration distributions and their temporal variations.
Our target is to achieve a temporal resolution of approximately 10 minutes to 1 hour and a spatial resolution of 2-3 km. This will allow for the immediate evaluation of emissions from large sources and regional areas through the integration of atmospheric chemical transport models and data assimilation, leading to effective mitigation strategies. By assessing the impact of emission reduction policies based on actual concentration changes, we can iteratively optimize these policies and provide scientifically validated knowledge as a public resource, thereby driving reduction efforts. Continuous observation of emission sources and regional-scale pollution dispersion across Asia will contribute not only to achieving the 1.5 degree target of the Paris Agreement and the Global Stocktake but also to reducing the global premature mortality rate, which currently stands at approximately 4.2 million deaths per year, with a particular focus on Asia, which is considered a hotspot for air pollution.
This proposal aims to observe short-lived climate forcers (SLCFs), which are major air pollutants, as well as greenhouse gases (GHGs) such as CO2, alongside existing thermal infrared geostationary satellite observations. By utilizing hyperspectral measurements, we aim to achieve an unparalleled kilometer-scale resolution, enabling real-time and objective analysis of concentration distributions and their temporal variations.
Our target is to achieve a temporal resolution of approximately 10 minutes to 1 hour and a spatial resolution of 2-3 km. This will allow for the immediate evaluation of emissions from large sources and regional areas through the integration of atmospheric chemical transport models and data assimilation, leading to effective mitigation strategies. By assessing the impact of emission reduction policies based on actual concentration changes, we can iteratively optimize these policies and provide scientifically validated knowledge as a public resource, thereby driving reduction efforts. Continuous observation of emission sources and regional-scale pollution dispersion across Asia will contribute not only to achieving the 1.5 degree target of the Paris Agreement and the Global Stocktake but also to reducing the global premature mortality rate, which currently stands at approximately 4.2 million deaths per year, with a particular focus on Asia, which is considered a hotspot for air pollution.