Variability of thermally driven circulation in an idealized basin

Title
Variability of thermally driven circulation in an idealized basin
Author(s)
박영규
KIOST Author(s)
Park, Young Gyu(박영규)
Publication Year
2002-07-15
Abstract
Thermohaline circulation from a low resolution numerical model may show very regular variability, but the cause is not well understood yet. In this study, variability of thermally driven circulation from a depth level coordinate ocean circulation model (GFDL MOM3) has been investigated. It has been suggested that bottom geometry has important effect on the strength of the variability and the following four types of bottom geometries were considered, which are a flat bottom, a bowl shaped bottom, one with a continental shelf along the eastern wall and one with a shelf along the western all wall. The model ocean is driven by zonally uniform heat flux at the surface. Surface wind stresses are not considered. As reported in earlier studies the variability is strongest in the flat bottom case and weakest in the bowl shaped bottom case. In the flat bottom case, the interaction between eastwards zonal flow at the surface driven meridional temperature gradient and boundaries near the north-eastern corner of the basin is the key variability is formed near the north-eastern corner and circulates cyclonically over the polar region. Therefore, the bottom geometry along the eastern boundary is the most important in the generation of the variability.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/32549
Bibliographic Citation
CCSR-CES Joint Workshop, 2002
Publisher
서울대, 동경대
Type
Conference
Language
English
Publisher
서울대, 동경대
Related Researcher
Research Interests

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

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