Observational evidence of a warm ocean current preceding a winter teleconnection pattern in the northwestern Pacific

Naoki Hirose, Kazuya Nishimura, Masaru Yamamoto

研究成果: ジャーナルへの寄稿記事

26 引用 (Scopus)

抄録

The role of the extratropical ocean in climate remains unclear due to the complexities in air-sea interaction processes. We have found robust evidence for the Tsushima Warm Current (TWC) preceding the western Pacific (WP) teleconnection pattern by conducting an analysis over the past 30 years. The WP index in winter sharply succeeds the volume transport of the TWC in autumn, but rather smoothly connects with the El Niño indices, indicating a considerable role of the ocean current in the climate system. Correlation patterns of seasonal precipitation over the Japanese Islands are also consistent with this relationship. The significant lead-lag correlations with the coherent structures of surface temperature indicate ocean-to-atmosphere feedback in which the interannual variation of the wind-driven current, represented by the TWC transport, influences the regional climate conditions associated with the WP pattern in winter.

元の言語英語
記事番号L09705
ジャーナルGeophysical Research Letters
36
発行部数9
DOI
出版物ステータス出版済み - 5 16 2009

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ocean currents
teleconnection
winter
wind-driven current
climate
volume transport
air-sea interaction
ocean
climate conditions
regional climate
annual variation
oceans
surface temperature
autumn
air water interactions
atmosphere
annual variations
time lag
conduction
atmospheres

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Earth and Planetary Sciences(all)

これを引用

Observational evidence of a warm ocean current preceding a winter teleconnection pattern in the northwestern Pacific. / Hirose, Naoki; Nishimura, Kazuya; Yamamoto, Masaru.

:: Geophysical Research Letters, 巻 36, 番号 9, L09705, 16.05.2009.

研究成果: ジャーナルへの寄稿記事

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