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TanSat Mission Achievements: from Scientific Driving to Preliminary Observations

LIU Yi,  WANG Jing,  YAO Lu,  CHEN Xi,  CAI Zhaonan,  YANG Dongxu,  YIN Zengshan,  GU Songyan,  TIAN Longfei,  LU Naimeng,  LÜ Daren

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文章导航 > 空间科学学报  > 2018 >  38(5): 627-639
LIU Yi, WANG Jing, YAO Lu, CHEN Xi, CAI Zhaonan, YANG Dongxu, YIN Zengshan, GU Songyan, TIAN Longfei, LU Naimeng, LÜ Daren. TanSat Mission Achievements: from Scientific Driving to Preliminary Observations[J]. 空间科学学报, 2018, 38(5): 627-639. doi: 10.11728/cjss2018.05.627
引用本文: LIU Yi, WANG Jing, YAO Lu, CHEN Xi, CAI Zhaonan, YANG Dongxu, YIN Zengshan, GU Songyan, TIAN Longfei, LU Naimeng, LÜ Daren. TanSat Mission Achievements: from Scientific Driving to Preliminary Observations[J]. 空间科学学报, 2018, 38(5): 627-639. doi: 10.11728/cjss2018.05.627
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LIU Yi, WANG Jing, YAO Lu, CHEN Xi, CAI Zhaonan, YANG Dongxu, YIN Zengshan, GU Songyan, TIAN Longfei, LU Naimeng, LÜ Daren. TanSat Mission Achievements: from Scientific Driving to Preliminary Observations[J]. Chinese Journal of Space Science, 2018, 38(5): 627-639. doi: 10.11728/cjss2018.05.627
Citation: LIU Yi, WANG Jing, YAO Lu, CHEN Xi, CAI Zhaonan, YANG Dongxu, YIN Zengshan, GU Songyan, TIAN Longfei, LU Naimeng, LÜ Daren. TanSat Mission Achievements: from Scientific Driving to Preliminary Observations[J]. Chinese Journal of Space Science, 2018, 38(5): 627-639. doi: 10.11728/cjss2018.05.627
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TanSat Mission Achievements: from Scientific Driving to Preliminary Observations

doi: 10.11728/cjss2018.05.627

  • 1 Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;

  • 2 University of Chinese Academy of Sciences, Beijing 100190;

  • 3 Shanghai Engineering Center for Microsatellites, Shanghai 201203;

  • 4 National Satellite Meteorological Center, China Meteorological Administration, Beijing 100081

基金项目: 

Supported by National Key R&D Program of China (2016YFA0600203, 2017YFB0504000), the National High-tech Research and Development Program (2011AA12A104), External Cooperation Program of the Chinese Academy of Sciences (GJHZ1507)

详细信息
    作者简介:

    YANG Dongxu,yangdx@mail.iap.ac.cn

TanSat Mission Achievements: from Scientific Driving to Preliminary Observations

  • 1 Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;

  • 2 University of Chinese Academy of Sciences, Beijing 100190;

  • 3 Shanghai Engineering Center for Microsatellites, Shanghai 201203;

  • 4 National Satellite Meteorological Center, China Meteorological Administration, Beijing 100081

Funds: 

Supported by National Key R&D Program of China (2016YFA0600203, 2017YFB0504000), the National High-tech Research and Development Program (2011AA12A104), External Cooperation Program of the Chinese Academy of Sciences (GJHZ1507)

More Information
    Author Bio:

    YANG Dongxu,yangdx@mail.iap.ac.cn

    摘要
  • 摘要: The Chinese global carbon dioxide monitoring satellite (TanSat) was successfully launched in December 2016 and has completed its on-orbit tests and calibration. TanSat aims to measure the atmospheric Carbon Dioxide column-averaged dry air mole fractions (XCO2) with a precision of 4 ppm at the regional scale, and further to derive the CO2 global and regional fluxes. Progress toward these objectives is reviewed and the first scientific results from TanSat measurements are presented. During the design phase, Observation System Simulation Experiments (OSSE) on TanSat measurements performed prior to launch measurements using a nadir and a glint alternative mode when considering the balance of stable measurements and reduces the flux uncertainty (64%). The constellation measurements of two satellites indicate an extra 10% improvement in flux inversion if the satellite measurements have no bias and similar precision. The TanSat on-orbit test indicates that the instrument is stable and beginning to produce XCO2 products. The preliminary TanSat measurements have been validated with Total Carbon Column Observing Network (TCCON) measurements and have inter-compared with OCO-2 measurements in an overlap measurement.

     

    Abstract: The Chinese global carbon dioxide monitoring satellite (TanSat) was successfully launched in December 2016 and has completed its on-orbit tests and calibration. TanSat aims to measure the atmospheric Carbon Dioxide column-averaged dry air mole fractions (XCO2) with a precision of 4 ppm at the regional scale, and further to derive the CO2 global and regional fluxes. Progress toward these objectives is reviewed and the first scientific results from TanSat measurements are presented. During the design phase, Observation System Simulation Experiments (OSSE) on TanSat measurements performed prior to launch measurements using a nadir and a glint alternative mode when considering the balance of stable measurements and reduces the flux uncertainty (64%). The constellation measurements of two satellites indicate an extra 10% improvement in flux inversion if the satellite measurements have no bias and similar precision. The TanSat on-orbit test indicates that the instrument is stable and beginning to produce XCO2 products. The preliminary TanSat measurements have been validated with Total Carbon Column Observing Network (TCCON) measurements and have inter-compared with OCO-2 measurements in an overlap measurement.

     

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  • 收稿日期:  2017-06-20
  • 刊出日期:  2018-09-15

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    ISSN 0254-6124       CN 11-1783/V

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