Journal of Geo-information Science ›› 2021, Vol. 23 ›› Issue (8): 1362-1371.doi: 10.12082/dqxxkx.2021.210041

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Research Progress and Prospect on the Non-Uniform Distribution of Atmospheric CO2 Concentration and its Influence on Surface Warming

ZHANG Fan1,3(), XUAN Xin2, DENG Xiangzheng1,3,*()   

  1. 1. Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
    2. College of Geodesy and Geomatics, Shandong University of Science and Technology, Qingdao 266590, China
    3. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2021-01-25 Revised:2021-02-08 Online:2021-08-25 Published:2021-10-25
  • Contact: DENG Xiangzheng E-mail:zhangf.ccap@igsnrr.ac.cn;dengxz@igsnrr.ac.cn
  • Supported by:
    National Key Research and Development Program of China(2016YFA0602500)

Abstract:

Global climate change is not only the most important environmental problem, but also one of the most complex challenges mankind faces in the 21st century. In the context of the increasing challenges of climate change and global governance, the assessment of CO2 emissions and costs has attracted increasing attention from academia and policy makers. At present, almost all global studies, including the assessment by the Intergovernmental Panel on Climate Change (IPCC), use global average CO2 concentration to drive the climate models. However, there are many controversies on the impact assessment based on the global average distribution of CO2 in academia. To formulate countermeasures to deal with carbon emissions and reduction and enhance China’s international discourse on dealing with climate change, it is of great importance to explore the mutual feedback mechanism between the inhomogeneity of atmospheric CO2 concentration and geophysical processes (e.g. surface temperature rise), and explore the impact mechanism of the inhomogeneous distribution of atmospheric CO2 concentration on global climate change. This paper reviews the research progress of non-uniform distribution of atmospheric CO2 concentration and its effects on surface warming. Firstly, this paper reviews the evidence of non-uniform distribution of atmospheric CO2 concentration from three aspects, ground-based measurement, numerical simulation, and remote sensing. It summarizes the advantages of these three methods and analyzes the discovery process of non-uniform distribution of global atmospheric CO2 concentration. Secondly, this paper explores the mutual feedback between the non-uniform distribution of global atmospheric CO2 concentration and surface temperature rise. The non-uniform distribution of atmospheric CO2 concentration directly affects the radiative forcing or indirectly affects the regional warming through affecting the photosynthesis. Regional warming has a direct or indirect impact on the ability of the ocean and vegetation to absorb CO2, which ultimately affects the non-uniform distribution of global atmospheric CO2 concentration. Finally, this paper reviews the problems of existing studies on non-uniform distribution of atmospheric CO2 and discusses the prospect of future development trends. This study provides a scientific basis for understanding the current situation of global/regional carbon emissions and climate change impacts, and further explores the feedback mechanism among atmospheric CO2 non-uniform distribution, surface temperature rise, and socio-economic system.

Key words: carbon dioxide concentration, non-uniform distribution, surface temperature, mutual feedback mechanism, ground-based measurement, model and simulation, remote sensing