Evidence of Bottom-Trapped Currents in the Kuroshio Extension Region SCIE SCOPUS

Cited 11 time in WEB OF SCIENCE Cited 13 time in Scopus
Title
Evidence of Bottom-Trapped Currents in the Kuroshio Extension Region
Author(s)
Bishop, Stuart P.; Watts, D. Randolph; Park, Jae-Hun; Hogg, Nelson G.
Publication Year
2012-02
Abstract
As part of the Kuroshio Extension System Study, observations from five current meter moorings reveal that the abyssal currents are weakly bottom intensified. In the framework of linear quasigeostrophic flow, the best fitted vertical trapping depths range from 8 to 15 km in the absence of steep topography, but one mooring near an isolated seamount exhibited vertical trapping that was more pronounced and energetic with a vertical trapping depth of 5 km. The ratios of current speeds and geostrophic pressure streamfunctions at the sea surface compared to the bottom are 88% in the absence of steep topography. 63% near an isolated seamount. and overall on average 83% of their value at a reference depth of 5300 m. It is hypothesized that weakly depth-dependent eddies impinging upon topographic features introduce to the How the horizontal length scales of the topography, and these smaller lateral scales are subject to bottom intensification.
ISSN
0022-3670
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3633
DOI
10.1175/JPO-D-11-0144.1
Bibliographic Citation
JOURNAL OF PHYSICAL OCEANOGRAPHY, v.42, no.2, pp.321 - 328, 2012
Publisher
AMER METEOROLOGICAL SOC
Subject
TOPOGRAPHIC ROSSBY WAVES; DEEP; VARIABILITY
Keywords
Abyssal circulation; Bottom currents; Currents; Eddies; Mesoscale processes
Type
Article
Language
English
Document Type
Article
Publisher
AMER METEOROLOGICAL SOC
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