북서태평양의 13일주기 순압 해양 반응

Title
북서태평양의 13일주기 순압 해양 반응
Alternative Title
NEAR 13-DAY BAROTROPIC OCEAN RESPONSE TO THE ATMOSPHERIC FORCING IN THE NORTHWESTERN PACIFIC
Author(s)
나한나; 박재훈; 이호진; D. Randolph Watts
Alternative Author(s)
박재훈
Publication Year
2012-02-20
Abstract
Ocean bottom pressure measurements from an array of 43 pressure-recording inverted echo sounders, which were part of the Kuroshio Extension System Study (KESS), reveal fluctuations of about 13-day period in the Northwestern Pacific. The fluctuation is characterized by “common mode” which shows coherent in-phase oscillations with a relatively large amplitude in the northeastern part of the observational domain. It also shows energetic fluctuations in the winter season during the 2-year observational period. Regression analysis with wind stress curl field reveals a significant correlation between them, which suggests that the near 13-day barotropic ocean response observed from the bottom pressure array is driven by the large-scale atmospheric forcing in the Northwestern Pacific. This finding is confirmed by a daily-wind forced barotropic ocean model that produces similar near 13-day sea level fluctuations. fluctuation is characterized by “common mode” which shows coherent in-phase oscillations with a relatively large amplitude in the northeastern part of the observational domain. It also shows energetic fluctuations in the winter season during the 2-year observational period. Regression analysis with wind stress curl field reveals a significant correlation between them, which suggests that the near 13-day barotropic ocean response observed from the bottom pressure array is driven by the large-scale atmospheric forcing in the Northwestern Pacific. This finding is confirmed by a daily-wind forced barotropic ocean model that produces similar near 13-day sea level fluctuations.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/27920
Bibliographic Citation
2012 Ocean Sciences Meeting, pp.1, 2012
Publisher
AGU
Type
Conference
Language
English
Publisher
AGU
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