Observation of Arctic surface currents using data from a surface drifting buoy

Hongxia Chen Lina Lin Long Fan Wangxiao Yang Yinke Dou Bingrui Li Yan He Bin Kong Guangyu Zuo Na Liu

Hongxia Chen, Lina Lin, Long Fan, Wangxiao Yang, Yinke Dou, Bingrui Li, Yan He, Bin Kong, Guangyu Zuo, Na Liu. Observation of Arctic surface currents using data from a surface drifting buoy[J]. Acta Oceanologica Sinica. doi: 10.1007/s13131-023-2202-x
Citation: Hongxia Chen, Lina Lin, Long Fan, Wangxiao Yang, Yinke Dou, Bingrui Li, Yan He, Bin Kong, Guangyu Zuo, Na Liu. Observation of Arctic surface currents using data from a surface drifting buoy[J]. Acta Oceanologica Sinica. doi: 10.1007/s13131-023-2202-x

doi: 10.1007/s13131-023-2202-x

Observation of Arctic surface currents using data from a surface drifting buoy

Funds: The Fundamental Research Fund Project of the First Institute of Oceanography of the Ministry of Natural Resources under contract No GY022Y07; the National Natural Science Foundation of China under contract No 42106232.
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  • Figure  1.  Drift trajectories of buoys (the red line is the trajectories of drifting buoys deployed by CHINARE, and the bluelines are the trajectories of 7 ice buoys deployed by the Alfred Wegener Institute, Germany).

    Figure  2.  Percentage statistics of 1-hour velocity and residual velocity in cm/s with an interval of 5 cm/s.

    Figure  3.  Drift buoy trajectory in the third section (a) and the fifth section (b).

    Figure  4.  Drift buoy trajectory in the sixth section (a) and the eighth section (b).

    Figure  5.  Drift buoy trajectory in the first section

    Figure  6.  Drift buoy trajectory in two ten day periods: 2019.9.21–2019.9.30 (a) and 2020.11.20–2020.11.29 (b).

    Figure  7.  Drift buoy trajectoryin the second section (a) and the seventh section (b).

    Figure  8.  Histograms of drift velocity in different sections

    Figure  9.  Diagram of ER5 wind speed and direction at point (75.5°N, 174.74°W) (up), velocity and flow direction in the second period (down).

    Figure  10.  Partial track of the drifting buoy (June 18, 2020–September 24, 2020).

    Figure  11.  Diagram of ER5 wind speed and direction at point (79.5°N,178°W) (up), velocity and flow direction in the fourth section (down)

    Table  1.   Division of sections, median values and maximum values of drift residual speed in cm/s for different sections of the drifting buoy

    Section
    No.
    Duration Starting position End position Drift residual speed/(cm·s−1) Figure
    No.
    Main characteristics
    Median
    value
    Maximum
    value
    001 Sep. 2–Sep. 30, 2019 (74.69°N, 168.99°W) (75.87°N, 174.97°W) 12.71 32.78 5,6 inertial flow
    002 Oct. 1–Feb. 19, 2020 (75.87°N, 174.95°W) (76.33°N, 175.89°W) 12.62 50.38 6 disorganized surface flow
    003 Feb. 19, 2019–Jun. 18, 2020 (76.33°N, 175.89°W) (79.86°N, 170.20°W) 8.79 28.45 3 transpolar drift
    004 Jun. 18–Sep. 24, 2020 (79.86°N, 170.20°W) (79.41°N, 179.89°E) 12.02 39.09 10 Surface cross-ridge flow
    005 Sep. 24–Nov. 11, 2020 (79.41°N, 179.89°E) (81.70°N, 178.31°E) 12.81 31.92 3 transpolar drift
    006 Nov. 20–Dec. 31, 2020 (81.41°N, 174.76°W) (82.15°N, 173.42°W) 10.49 35.83 4,6 transpolar drift; inertial flow
    007 Jan. 6–Mar. 10, 2021 (82.06°N, 171.21°W) (82.75°N, 177.47°W) 10.44 46.83 7 disorganized surface flow
    008 Mar. 10–Jun. 9, 2021 (82.75°N, 177.47°W) (86.32°N, 150.85°W) 8.88 30.63 4 transpolar drift
    下载: 导出CSV

    Table  2.   Percentage statistics table of 1-hour velocity and residual velocity in cm/s with an interval of 5 cm/s

    Percentage
    (0 cm/s,
    5 cm/s]
    (5 cm/s,
    10 cm/s]
    (10 cm/s,
    15 cm/s]
    (15 cm/s,
    20 cm/s]
    (20 cm/s,
    25 cm/s]
    (25 cm/s,
    30 cm/s]
    (30 cm/s,
    35 cm/s]
    (35 cm/s,
    40 cm/s]
    (>40 cm/s)
    1-hour velocity 19.0% 28.2% 21.0% 13.0% 8.8% 5.0% 2.6% 1.1% 1.3%
    Residual velocity 21.2% 32.0% 22.6% 12.1% 6.6% 3.2% 1.1% 0.7% 0.4%
    下载: 导出CSV

    Table  3.   Average northward velocity of transpolar drift in each period

    Section No. Month range Zonal range Average northward velocity/(cm´s−1)
    003 Feb.~Jun. 76.33°~79.86°N 3.5
    005 Sep.~Nov. 79.41°~81.70°N 6.6
    006 Nov.~Dec. 81.41°~82.15°N 3.8
    008 Mar.~Jun. 82.75°~86.32°N 4.9
    下载: 导出CSV

    Table  4.   Average northward velocity (80°~85°N) in each latitude calculated from 7 ice buoys records deployed during TICE

    Buoy No. Start LAT. Average northward velocity/(cm´s−1)
    2018S75 80.50°N 4.4
    2018S76 80.70°N 4.3
    2018T35 80.50°N 4.3
    2018T46 80.44°N 4.7
    2018T52 80.78°N 5.0
    2018T54 79.66°N 5.0
    2018T55 80.75°N 5.8
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-09-22
  • 录用日期:  2023-03-19
  • 网络出版日期:  2023-11-23

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