Please join us for an informal seminar sponsored by the Atomic and Molecular Physics Division, Harvard-Smithsonian Center for Astrophysics. (Complete schedule at http://www.cfa.harvard.edu/amp/events.html) 11:00 AM Friday, June 15, 2012 Phillips Auditorium 60 Garden St, Cambridge, MA The Chinese carbon dioxide observation satellite (TanSat) project Yi Liu (Key Laboratory of Middle Atmosphere and Global Environmental Observation, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing) The Chinese carbon dioxide observation satellite (TanSat) project is one of the national high technology research and development programs. It is funded by the ministry of science and technology of the People¢s Republic of China and the Chinese Academy of Sciences. The TanSat will be launched in 2015 to monitor the carbon dioxide in Sun-Synchronous orbit. Two instruments will be onboard the TanSat. The main instrument is a high resolution grating spectrometer that measures reflected sunlight with the 0.76 micron O2 A-band and two CO2 bands at 1.61 and 2.06 micron. The second instrument is the Cloud and Aerosol polarization Imager (CAPI). It is a wide field of view moderate resolution imaging spectrometer, and it includes 0.38, 0.67, 0.87, 1.375 and 1.64 micron channels, with polarization channels at 0.67 micron and 1.64 micron. Soundings recorded from main instrument will be used to retrieve the column-averaged CO2 dry air mole fraction (XCO2), while data from CAPI will be used to correct for cloud and aerosol interferences. A full physical optimal estimation method is being developed as a retrieval method of XCO2, while other sensitive parameters will be inversed at the same time. A ground based observation network will be established around China to validate satellite observation of CO2, aerosol and cloud. The CO2 observation consists of 3 Bruker IFS125 and 3 Optical Spectrum Analyzers, and the aerosol observation is achieved by 10 CE-318 sunphotometers. The object of TanSat is to monitor XCO2 from space with precision of 1~4 ppmv.  Global and regional CO2 sources and sinks will be derived from XCO2 observations based on a data assimilation system. _______________________________________________ Aspuru-meetings-list mailing list Aspuru-meetings-list(a)lists.fas.harvard.edu https://lists.fas.harvard.edu/mailman/listinfo/aspuru-meetings-list