Tracing dense shelf water in the Sea of Okhotsk with an ocean general circulation model

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Author(s)

    • Uchimoto Keisuke
    • Pan-Okhotsk Research Center, Institute of Low Temperature Science, Hokkaido University
    • Nakamura Tomohiro
    • Pan-Okhotsk Research Center, Institute of Low Temperature Science, Hokkaido University
    • Mitsudera Humio
    • Pan-Okhotsk Research Center, Institute of Low Temperature Science, Hokkaido University

Abstract

A lot of sedimentary particles are known to be mixed into dense shelf water (DSW) produced in the northern part of the Sea of Okhotsk as a result of brine rejection during sea ice formation. To investigate the behavior and distribution of materials in DSW, tracer experiments with an ice-ocean coupled model have been conducted. It was shown that a tracer injected in winter over the northwestern shelf flows on the shelf until early summer with the concentration higher near the bottom. Then, it goes down along the slope to the intermediate layer along the east coast of Sakhalin; the core of tracer is settled around a depth of 400 m. These features are consistent with observations. The experiment in which tidal mixing is absent along the Kuril Islands shows a shallower core of the tracer at a depth of about 200 m owing to the density decrease of DSW.<br>

Journal

  • Hydrological Research Letters

    Hydrological Research Letters (5), 1-5, 2011

    Japan Society of Hydrology and Water Resources (JSHWR) / Japanese Association of Groundwater Hydrology (JAGH) / Japanese Association of Hydrological Sciences (JAHS) / Japanese Society of Physical Hydrology (JSPH)

Codes

  • NII Article ID (NAID)
    130000415043
  • Text Lang
    ENG
  • Data Source
    J-STAGE 
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