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TanSat, also known as CarbonSat, is a Chinese Earth observation satellite dedicated to monitoring carbon dioxide in Earth’s atmosphere.
It is the Chinese space program. The mission was formally proposed in 2010, and work began in January 2011.
It is funded by the Ministry of Science and Technology (MOST) and was built by the Shanghai Institute of Microsystem And Information Technology (SIMIT).
TanSat carries two instruments: the Carbon Dioxide Spectrometer and the Cloud and Aerosol Polarimetry Imager.
The TanSat (CarbonSat) satellite was launched on December 21, 2016
China is the third country after Japan and the United States to monitor greenhouse gases through its own satellite.
The Paris agreement on climate change came into force on November 4, with more than 100 countries committed to reducing their carbon emissions.
The satellite can trace the sources of greenhouse gases and help evaluate whether countries are fulfilling their commitments.
The project includes 4 research topics:
a) A high-resolution Carbon Dioxide Spectrometer for measuring the near-infrared absorption by CO2.
b) CAPI (Cloud and Aerosol Polarimetry Imager) to compensate the CO2 measurement errors by high-resolution measurement of cloud and aerosol.
c) A spacecraft equipped with the two instruments, capable of performing scientific observations in multiple ways as mission required.
d) A ground segment which receives observation data and retrieves the atmosphere column-averaged CO2 dry air mole fraction (XCO2), and performs data validation by ground-based CO2 monitoring.