A conceptual two-layer model of thermohaline circulation in a pie-shaped beta-plane basin KCI OTHER

Title
A conceptual two-layer model of thermohaline circulation in a pie-shaped beta-plane basin
Alternative Title
A conceptual two-layer model of thermohaline circulation in a pie-shaped beta-plane basin
Author(s)
박영규
KIOST Author(s)
Park, Young Gyu(박영규)
Publication Year
2003-03
Abstract
The three dimensional structure of thermohaline circulation in a D-plane is investigated using a conceptual two layer model and a scaling argument. In this simple model, the water mass formation region is excluded. The upper layer represents the oceans above the main thermocline. The lower layer represents the deep ocean below the thermocline and is much thicker than the upper layer. In each layer, geostrophy and the linear vorticity balance are assumed. The cross interfacial velocity that compensates for the deep water mass formation balances downward heat diffusion from the top. From the above relations, we can determine the thickness of the upper layer, which is the same as thermocline depth. The results we get is basically the same as that we get for an f-plane ocean or the classical thermocline theory. Mass budget using the velocity scales from the scaling argument shows that western boundary and interior transports are much larger than the net meridional transport. Therefore in the thermohaline circulation, horizontal circulation is much stronger than the vertical circulation occuring on a meridional plane.
ISSN
1226-2978
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2024
Bibliographic Citation
바다, v.38, no.1, pp.11 - 16, 2003
Publisher
한국해양학회
Keywords
Thermohaline circulation; Scaling law
Type
Article
Language
English
Publisher
한국해양학회
Related Researcher
Research Interests

ocean circulation,ocean mixing,marine debris,해양순환,해양혼합,해양부유물

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