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Chinese Journal of Space Science ›› 2020, Vol. 40 ›› Issue (2): 151-168.doi: 10.11728/cjss2020.02.151

• Research Aeticles • Previous Articles     Next Articles

Exploring Greenhouse Gases Water and Climate Changes: Scientific Opportunities for the Climate and Atmospheric Composition Exploring Satellites Mission

LIU Congliang1,3, KIRCHENGAST Gottfried2,3, SUN Yueqiang1,3,8, WANG Xin4, Lü Daren4,8, BAI Weihua1,3,8, DU Qifei1,3, L?SCHER Armin5, SYNDERGAARD Stig6, TIAN Longfei7, ZHANG Zhihua4   

  1. 1 Beijing Key Laboratory of Space Environment Exploration, National Space Science Center, Chinese Academy of Sciences, Beijing 100190;
    2 Wegener Center for Climate and Global Change and Institute for Geophysics, Astrophysics, and Meteorology/Institute of Physics, University of Graz, Graz A-8010;
    3 Joint Laboratory on Occultations for Atmosphere and Climate, Beijing 100190;
    4 Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029;
    5 Future Missions and Instrument Division, European Space Agency, Noordwijk, NL-2200;
    6 Danish Meteorological Institute, Copenhagen, DK-2100;
    7 Innovation Academy for Microsatellite of Chinese Academy of Sciences, Shanghai 201210;
    8 University of Chinese Academy of Sciences, Beijing 100049
  • Received:2019-12-31 Online:2020-03-15 Published:2020-04-11
  • Supported by:
    Supported by the National Natural Science Foundation of China (41775034, 41606206), and the Strategic Priority Research Program of Chinese Academy of Sciences (XDA15012300)

Abstract: The Essential Climate Variables (ECVs), such as the atmospheric thermodynamic state variables and greenhouse gases, play an important role in the atmosphere physical processes and global climate change. Given the need of improvements in existing ground-based and satellite observations to successfully deliver atmosphere and climate benchmark data and reduce data ambiguity, the Climate and Atmospheric Composition Exploring Satellites mission (CACES) was proposed and selected as a candidate mission of the Strategic Priority Research Program of Chinese Academy Science (SPRPCAS). This paper presents an overview of the key scientific questions and responses of ECVs in relation to global change; the principles, algorithms, and payloads of microwave occultation using centimeter and millimeter wave signals between low Earth orbit satellites (LEO-LEO microwave occultation, LMO) as well as of the LEO-LEO infrared-laser occultation (LIO); the CACES mission with its scientific objectives, mission concept, spacecraft and instrumentation.

Key words: Climate, Greenhouse gases, Water, Microwave occultation, Infrared-laser occultation

CLC Number: