14:00 〜 14:15
[ACG38-14] Scientific Targets and Policy Contributions Expected from the Observation of Greenhouse Gases and Air Pollutants by GOSAT-GW
キーワード：気候変動、温室効果ガス、大気汚染物質、パリ協定
Global Observing SATellite for Greenhouse gases and Water cycle (GOSAT-GW) is a Japanese Earth observation satellites to be launched in FY2023 and jointly funded by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) and the Ministry of the Environment (MOE). The satellite will carry two mission instruments, Total Anthropogenic and Natural Emission Mapping Spectrometer 3 (TANSO-3) and Advanced Microwave Scanning Radiometer 3 (AMSR3). TANSO-3 is a 3-band grating imaging spectrometer with two different selectable spatial observation modes, Wide Mode (≈900 km swath and 10 km resolution) and Fine Mode (90 km swath and 3 km resolution). MOE and National Institute for Environmental Studies (NIES) are responsible for global observation of greenhouse gases (GHGs) and air pollutants, carbon dioxide (CO2), methane (CH4), and nitrogen dioxide (NO2), by TANSO-3. TANSO-3 instrument is being developed by Japan Aerospace Exploration Agency (JAXA) with the funding from MOE.
The missions of TANSO-3 onboard GOSAT-GW include (1) monitoring of whole-atmosphere mean concentrations of CO2 and CH4, (2) validation of nationwide anthropogenic emissions of GHGs, and (3) detection of GHGs emissions from large sources, such as megacities and power plants.
The whole-atmosphere mean concentrations of CO2 and CH4 in Mission (1) are the continuation of GOSAT whole atmosphere-mean concentrations from 2009. It is important in assessing the current status of the Earth atmosphere and deviations of GHG concentrations from emission scenarios necessary to achieve 2°C or 1.5 °C targets in the Paris Agreement.
The validation of nationwide anthropogenic emissions of GHGs is one of emerging challenges related to the Paris Agreement and contributions from Mission (2) and (3) of TANSO-3 are strongly expected. TANSO-3 will be able to provide GHG concentration data for the globe, the nations, and point-sources, and these data will be crucial in the top-down (inverse) estimates of regional, national, or point source emissions. NO2 data from TANSO-3 will be also utilized in the identification and characterization of point sources which use fossil fuels and their plumes.
In this presentation, scientific targets and policy contributions expected from the observation of Greenhouse Gases and Air Pollutants by GOSAT-GW will be discussed.
The missions of TANSO-3 onboard GOSAT-GW include (1) monitoring of whole-atmosphere mean concentrations of CO2 and CH4, (2) validation of nationwide anthropogenic emissions of GHGs, and (3) detection of GHGs emissions from large sources, such as megacities and power plants.
The whole-atmosphere mean concentrations of CO2 and CH4 in Mission (1) are the continuation of GOSAT whole atmosphere-mean concentrations from 2009. It is important in assessing the current status of the Earth atmosphere and deviations of GHG concentrations from emission scenarios necessary to achieve 2°C or 1.5 °C targets in the Paris Agreement.
The validation of nationwide anthropogenic emissions of GHGs is one of emerging challenges related to the Paris Agreement and contributions from Mission (2) and (3) of TANSO-3 are strongly expected. TANSO-3 will be able to provide GHG concentration data for the globe, the nations, and point-sources, and these data will be crucial in the top-down (inverse) estimates of regional, national, or point source emissions. NO2 data from TANSO-3 will be also utilized in the identification and characterization of point sources which use fossil fuels and their plumes.
In this presentation, scientific targets and policy contributions expected from the observation of Greenhouse Gases and Air Pollutants by GOSAT-GW will be discussed.