A Geostationary air quality monitor for the Middle East

[摘要] Atmospheric pollution measurements from space have been evolving from low-earth-orbits (LEO) to geostationary orbits (GEO), to track the diurnal variation of atmospheric emissions. There are three GEO instruments in development. TEMPO is NASA's first Earth Venture Instrument, to be launched during 2018-2021. It will measure atmospheric pollution for greater North America using ultraviolet and visible spectroscopy. The European Sentinel-4 and the South Korean GEMS will measure atmospheric pollution for Europe and Southeast Asia, respectively. In this paper, we describe NASA's TEMPO instrument and we propose a similar instrument in GEO to provide hourly atmospheric pollution measurements for the Middle East at very high spatial resolution. The proposed Middle-East TEMPO instrument will cover Arab Countries, and parts of Asia and Europe. The measurement will include the spectra required to retrieve O3, NO2, SO2, H2CO, C2H2O2, H2O, aerosols, cloud parameters, and UVB radiation.

[发布机构] Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge; MA; 02138, United States^1

[关键词] Atmospheric emission;Atmospheric pollution;Cloud parameters;Diurnal variation;Geostationary orbits;Low earth orbit(LEO);Very high spatial resolutions;Visible spectroscopy