동해에서의 최근 해수면 상승 패턴 및 이들 현상의 울릉분지에서의 생태학적 암시

Title
동해에서의 최근 해수면 상승 패턴 및 이들 현상의 울릉분지에서의 생태학적 암시
Alternative Title
patterns of recent sea level rise in the East/Japan Sea and their ecological implication in the Ulleung Basin
Author(s)
강석구; J.Y. Cherniawsky; M.G.G. Foreman; 유신재; 민홍식; 김철호; 강현우
KIOST Author(s)
Kang, Hyoun Woo(강현우)
Publication Year
2005-10-03
Abstract
Patterns of recent sea level rise in the East/Japan Sea (EJS) are investigated through the analyses of TOPEX/ Poseidon (T/P) sea level anomalies, thermosteric sea level (TSL) and tide gauge data. The 9-year long T/P analyses reveal average trends of 5.4 ± 0.3 mm yr–1 for all of EJS, which is much larger than the global rates of 3.1 ± 0.4 mm yr–1 found by Cabanes et al. [2001]. This T/P rate compares relatively well with those from TSL data and tidal sea level gauges, indicating that sea level rise in the EJS is mainly due to thermal expansion. The southern EJS shows a non-uniform sea level trend pattern, with larger rates in the Ulleung and Yamato basins. This non-uniform pattern is discussed in terms of variable thermal expansions arising from a recent decadal trend in the temperature anomaly in the upper layer of the two basins. The 40-year-long TSL time series also reveals a decadal oscillation in the Ulleung and Yamato basins. It is hypothesized that the long-term oscillation in the southern EJS may be related to decadal variability of the heat content anomaly in the upper 300 m of the Pacific Ocean, as reported by Levitus et al. [2000], and to eddy fluctuations in the southern EJS. Whether or not the ecosystem in the EJS is responding to these changing physical signals is discussed by comparing surface chlorophyll-a and temperature structure in the Ulleung Basin.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/31323
Bibliographic Citation
North Pacific Marine Science Organization(PICES) (14th annual meeting), pp.9, 2005
Publisher
PICES
Type
Conference
Language
English
Publisher
PICES
Related Researcher
Research Interests

Marine System Modeling,Ocean Climate,Ocean Circulation,해양시스템모델링,해양 기후,해양 순환

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