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    Observed Transport Variations in the Maluku Channel of the Indonesian Seas Associated with Western Boundary Current Changes

    Source: Journal of Physical Oceanography:;2018:;volume 048:;issue 008::page 1803
    Author:
    Yuan, Dongliang
    ,
    Li, Xiang
    ,
    Wang, Zheng
    ,
    Li, Yao
    ,
    Wang, Jing
    ,
    Yang, Ya
    ,
    Hu, Xiaoyue
    ,
    Tan, Shuwen
    ,
    Zhou, Hui
    ,
    Wardana, Adhitya Kusuma
    ,
    Surinati, Dewi
    ,
    Purwandana, Adi
    ,
    Azis Ismail, Mochamad Furqon
    ,
    Avianto, Praditya
    ,
    Dirhamsyah, Dirham
    ,
    Arifin, Zainal
    ,
    Storch, Jin-Song von
    DOI: 10.1175/JPO-D-17-0120.1
    Publisher: American Meteorological Society
    Abstract: AbstractThe Maluku Channel is a major opening of the eastern Indonesian Seas to the western Pacific Ocean, the upper-ocean currents of which have rarely been observed historically. During December 2012?November 2016, long time series of the upper Maluku Channel transport are measured successfully for the first time using subsurface oceanic moorings. The measurements show significant intraseasonal-to-interannual variability of over 14 Sv (1 Sv ≡ 106 m3 s?1) in the upper 300 m or so, with a mean transport of 1.04?1.31 Sv northward and a significant southward interannual change of over 3.5 Sv in the spring of 2014. Coincident with the interannual transport change is the Mindanao Current, choked at the entrance of the Indonesian Seas, which is significantly different from its climatological retroflection in fall?winter. A high-resolution numerical simulation suggests that the variations of the Maluku Channel currents are associated with the shifting of the Mindanao Current retroflection. It is suggested that the shifting of the Mindanao Current outside the Sulawesi Sea in the spring of 2014 elevates the sea level at the entrance of the Indonesian Seas, which drives the anomalous transport through the Maluku Channel. The results suggest the importance of the western boundary current nonlinearity in driving the transport variability of the Indonesian Throughflow.
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      Observed Transport Variations in the Maluku Channel of the Indonesian Seas Associated with Western Boundary Current Changes

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    contributor authorYuan, Dongliang
    contributor authorLi, Xiang
    contributor authorWang, Zheng
    contributor authorLi, Yao
    contributor authorWang, Jing
    contributor authorYang, Ya
    contributor authorHu, Xiaoyue
    contributor authorTan, Shuwen
    contributor authorZhou, Hui
    contributor authorWardana, Adhitya Kusuma
    contributor authorSurinati, Dewi
    contributor authorPurwandana, Adi
    contributor authorAzis Ismail, Mochamad Furqon
    contributor authorAvianto, Praditya
    contributor authorDirhamsyah, Dirham
    contributor authorArifin, Zainal
    contributor authorStorch, Jin-Song von
    date accessioned2019-09-19T10:02:27Z
    date available2019-09-19T10:02:27Z
    date copyright7/2/2018 12:00:00 AM
    date issued2018
    identifier otherjpo-d-17-0120.1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4260873
    description abstractAbstractThe Maluku Channel is a major opening of the eastern Indonesian Seas to the western Pacific Ocean, the upper-ocean currents of which have rarely been observed historically. During December 2012?November 2016, long time series of the upper Maluku Channel transport are measured successfully for the first time using subsurface oceanic moorings. The measurements show significant intraseasonal-to-interannual variability of over 14 Sv (1 Sv ≡ 106 m3 s?1) in the upper 300 m or so, with a mean transport of 1.04?1.31 Sv northward and a significant southward interannual change of over 3.5 Sv in the spring of 2014. Coincident with the interannual transport change is the Mindanao Current, choked at the entrance of the Indonesian Seas, which is significantly different from its climatological retroflection in fall?winter. A high-resolution numerical simulation suggests that the variations of the Maluku Channel currents are associated with the shifting of the Mindanao Current retroflection. It is suggested that the shifting of the Mindanao Current outside the Sulawesi Sea in the spring of 2014 elevates the sea level at the entrance of the Indonesian Seas, which drives the anomalous transport through the Maluku Channel. The results suggest the importance of the western boundary current nonlinearity in driving the transport variability of the Indonesian Throughflow.
    publisherAmerican Meteorological Society
    titleObserved Transport Variations in the Maluku Channel of the Indonesian Seas Associated with Western Boundary Current Changes
    typeJournal Paper
    journal volume48
    journal issue8
    journal titleJournal of Physical Oceanography
    identifier doi10.1175/JPO-D-17-0120.1
    journal fristpage1803
    journal lastpage1813
    treeJournal of Physical Oceanography:;2018:;volume 048:;issue 008
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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