Wintertime Guangdong coastal currents successfully captured by cheap GPS drifters

Hongyang Lin Zhenyu Sun Zhaozhang Chen Jia Zhu Jianyu Hu

Hongyang Lin, Zhenyu Sun, Zhaozhang Chen, Jia Zhu, Jianyu Hu. Wintertime Guangdong coastal currents successfully captured by cheap GPS drifters[J]. Acta Oceanologica Sinica, 2020, 39(1): 166-170. doi: 10.1007/s13131-019-1425-3
Citation: Hongyang Lin, Zhenyu Sun, Zhaozhang Chen, Jia Zhu, Jianyu Hu. Wintertime Guangdong coastal currents successfully captured by cheap GPS drifters[J]. Acta Oceanologica Sinica, 2020, 39(1): 166-170. doi: 10.1007/s13131-019-1425-3

doi: 10.1007/s13131-019-1425-3

Wintertime Guangdong coastal currents successfully captured by cheap GPS drifters

Funds: The National Basic Research Program of China under contract No. 2015CB954004; the National Natural Science Foundation of China under contract Nos 41606009, 41776027, 91858201 and 41890801; the Xiamen University Fundamental Research Funds for the Central Universities under contract No. 20720180099; the municipal project of Huizhou City under contract No. F2017-01-1; the Laboratory for Regional Oceanography and Numerical Modeling, Pilot National Laboratory for Marine Science and Technology (Qingdao) under contract No. 2017A02.
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  • Figure  1.  Photo of the self-designed drifter with the main components and sizes labeled (a), Photo of an example drifter deployed on the sea (b), and map of the Daya Bay with the drifter deploying stations labeled (magenta dots) (c). The Dalajia Island is also marked.

    Figure  2.  Trajectories of drifters deployed in the Daya Bay in January 2018. Blue lines denote the raw trajectories after deployment with the start and end times labeled; red lines denote trajectories along the Guangdong coast within which range the magnitudes of averaged velocity and its standard deviation are shown in black texts.

    Figure  3.  Mean surface circulation (2018–01–25 to 2018–02–05) in Guangdong coastal area based on the CMEMS reanalysis data (black vectors) during the survey period. The trajectories of six drifters deployed in the Daya Bay are superimposed.

    Figure  4.  Daily averaged surface ocean currents from CMEMS reanalysis (blue arrows) and 10-m winds from ASCAT (red arrows), superimposed with drifter trajectories (magenta curves) on the same date (shown in black bold texts in each panel).

    Figure  5.  Mean current directions derived from drifters compared with CMEMS-derived current directions (a) and wind directions (b).

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出版历程
  • 收稿日期:  2018-11-09
  • 录用日期:  2019-04-15
  • 网络出版日期:  2020-04-21
  • 刊出日期:  2020-01-20

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