Observations of the low latitude western boundary currents in 2017

Title
Observations of the low latitude western boundary currents in 2017
Author(s)
이재학; 민홍식; 신창웅; 홍창수; 김동국; 백규남; Fuad Azminuddin; Cesar Villanoy; Shaun Dolk
KIOST Author(s)
Lee, Jae Hak(이재학)Shin, Chang Woong(신창웅)Kim, Dong Guk(김동국)Azminuddin, Fuad(Fuad Azminuddin)
Publication Year
2018-05-08
Abstract
Field observations including deployment of ADCP moorings and satellite-tracked surface drifters using the R/V Isabu were carried out in the southern Philippine Sea in November and December of 2017 to observe the low latitude western boundary currents. The velocity data measured by lowered ADCP and vessel mounted ADCP clearly show the Mindanao Current (MC) with a maximum speed > 1 m/s and the Mindanao Undercurrent with a maximum speed > 0.5 m/s. The strong southward flow nearthe sea surface appeared in the area from the Philippine coast to 129°E along 8°N. Both geostrophic velocity and LADCP data indicate that the current thickness exceeds 2000 m. Drifter trajectories revealed the Mindanao Eddy (ME) and Halmahera Eddy in the MC and the New Guinea Coastal Current retroflection area, respectively, in the 2017-2018 winter season. The result with other drifter trajectories support the possible seasonal displacement of the ME in the meridional direction.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/23400
Bibliographic Citation
3rd Open Science Symposium, pp.23, 2018
Publisher
Northwestern Pacific Ocean Circulation and Climate Experiment
Type
Conference
Language
English
Publisher
Northwestern Pacific Ocean Circulation and Climate Experiment
Related Researcher
Research Interests

Ocean Circulation,Watermass Analysis,Climate Change,해양순환,수괴분석,기후변화

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