Characterization of Submesoscale Turbulence in the East/Japan Sea Using Geostationary Ocean Color Satellite Images SCIE SCOPUS

Cited 3 time in WEB OF SCIENCE Cited 4 time in Scopus
Title
Characterization of Submesoscale Turbulence in the East/Japan Sea Using Geostationary Ocean Color Satellite Images
Author(s)
Choi, J.; Park, Y-G; Kim, W.; Kim, Y. H.
KIOST Author(s)
Park, Young Gyu(박영규)
Publication Year
2019-07-28
Abstract
Submesoscale processes are key in understanding physical and biological phenomena near the surface, but there remains a lack of observational evidence over large areas. We used hourly images from a geostationary satellite that can resolve variation in surface ocean color over an area of few hundred kilometers. The temporal variation in the surface chlorophyll a distribution captured by the satellite images was first used to generate a submesoscale-permitting velocity field, from which we calculated the turbulence statistics such as kinetic energy spectra, velocity structure functions, and energy flux. Application to the April scenes in the East/Japan Sea showed that the kinetic energy spectra had a transition scale at 50 km that suggested two spectral regimes following k(-3) and k(-5/3), implying the coexistence of quasi-geostrophic turbulence and surface quasi-geostrophic turbulence. The chlorophyll a scalar spectrum suggested two spectral regimes of k(-5/3) and k(-1) with a transition at 3 km.
ISSN
0094-8276
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/570
DOI
10.1029/2019GL083892
Bibliographic Citation
GEOPHYSICAL RESEARCH LETTERS, v.46, no.14, pp.8214 - 8223, 2019
Publisher
AMER GEOPHYSICAL UNION
Subject
WAVE-NUMBER SPECTRA; EAST CHINA SEA; SURFACE CURRENTS; INTERNAL WAVES; GEOSTROPHIC TURBULENCE; RELATIVE DISPERSION; MESOSCALE; GOCI; ENERGY; DYNAMICS
Keywords
submesoscale observation; geostationary satellite; chlorophyll a; kinetic energy spectra; velocity structure function; energy flux
Type
Article
Language
English
Document Type
Article
Publisher
AMER GEOPHYSICAL UNION
Related Researcher
Research Interests

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

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