Advances in Earth Science ›› 2017, Vol. 32 ›› Issue (10): 1084-1092. doi: 10.11867/j.issn.1001-8166.2017.10.1084

• Orginal Article • Previous Articles     Next Articles

Key Scientific Problems and Challenges of Studying Carbon Cycle Mechanism in Pacific Sector of the Arctic

Hongtao Nie 1( ), Rui Wang 1, Wei Zhao 1, Xiaofan Luo 1, Di Qi 2, Youyu Lu 3, Yuanhui Zhang 2, Hao Wei 1, *( )   

  1. 1.School of Marine Science and Technology, Tianjin University, Tianjin 300072,China
    2.Third Institute of Oceanography,SOA,Xiamen 361005,China
    3.Bedford Institute of Oceans, Department of Fisheries and Oceans, Dartmouth, NS, B2Y 4A2, Canada
  • Received:2017-05-04 Revised:2017-07-24 Online:2017-12-20 Published:2017-10-20
  • Contact: Hao Wei;
  • About author:

    First author:Nie Hongtao(1979-),male,Suizhou City,Hubei Province, Lecturer. Research areas include shallow sea dynamics and marine ecosystem

  • Supported by:
    *Project supported by the National Natural Science Foundation of China“Research on characteristics and mechanisms of inter-annual variations of carbon cycling in the Chukchi Sea and adjacent region”(No.41630969) and “Modeling and analysis of seasonal and inter-annual variability of carbon fluxes in the Yellow and East China Seas”(No.41376112).

Hongtao Nie, Rui Wang, Wei Zhao, Xiaofan Luo, Di Qi, Youyu Lu, Yuanhui Zhang, Hao Wei. Key Scientific Problems and Challenges of Studying Carbon Cycle Mechanism in Pacific Sector of the Arctic[J]. Advances in Earth Science, 2017, 32(10): 1084-1092.

Challenged by the enormous pressure to reduce the global carbon emission, it is expected that the Arctic Ocean could absorb additional atmospheric CO2 with the retreating of sea-ice. The Chukchi Sea and adjacent waters, characterized by the highest carbon fixation in the global ocean and large carbon flux into the deep-ocean for sequestration, make substantial contributions to carbon cycling in the entire Arctic Ocean. Understanding the response mechanism of carbon cycling in this region to the rapidly changing environment is the foundation for the prediction of carbon sink in the Arctic Ocean. However, the response of carbon absorption and storage to climate change is still controversial, and the main controlling factors of the carbon cycle process remain unclear.Thus, to establish high-resolution coupled ocean-ice-carbon models can explore the influence of sea ice retreat on atmospheric CO2 and the vertical sinking carbon fluxes in Chukchi Sea, estimate the effectiveness of growing inflow and slope upwelling on carbon sink/source patterns, discuss the response of deep-ocean carbon sequestration to the changing environment, and evaluate the effectiveness of continental shelf pump in the Chukchi Sea as well as its role in the global carbon sink. Based on the challenge for the research of the Chukchi Sea carbon cycle research with rapidly changing climate, the basic ideas of establishing Arctic Ocean carbon cycling model as well as its key scientific issues to be resolved were proposed.

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