大気と海洋の多様なる相互作用
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大気と海洋の多様なる相互作用 謝 尚平 ハワイ大学 国際太平洋研究センター. 暖水レジーム WES フィードバックと太平洋 ITCZ 環大西洋振動 インド洋 冷水レジーム ハワイの島陰 東シナ海、ストームトラック. First satellite cloud climatology (January 1967-70). SST. Climatic asymmetry triggered by continental geometry Xie & Saito, J. Clim (2001). Equator.

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大気と海洋の多様なる相互作用

謝尚平

ハワイ大学国際太平洋研究センター

  • 暖水レジーム

    • WESフィードバックと太平洋ITCZ

    • 環大西洋振動

    • インド洋

  • 冷水レジーム

    • ハワイの島陰

    • 東シナ海、ストームトラック


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First satellite cloud climatology (January 1967-70)

SST

Climatic asymmetry triggered by continental geometry

Xie & Saito, J. Clim (2001)


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Equator

Wind-Evaporation-SST (WES) Feedback


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Wind-Evaporation-SST Feedback

Pan-Atlantic

Decadal Oscillation (PADO)

Xie and Tanimoto ’98, GRL

Okumura et al. ’01, GRL

Tanimoto & Xie ’02, JMSJ


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WES

KOE

Bjerknes

>26

TIW

Stratus

WES

  • 冷たい海面における大気海洋相互作用:気候素過程への理解

    • 衛星による高解像度グローバル観測(TRMM、QuikSCAT)

    • 領域モデルの長時間積分(MM5)


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Far-Reaching Effects of the Hawaiian Islands

Xie et al. Science 292, 2057-2060 (2001)

A

A 3,000-km-long wake, many times longer than any yet observed, was discovered lee of the Hawaiian Islands using QuikSCAT and TRMM satellite data. East of the islands, the filtered SST field varies little, to the west greatly. In the shadow of the islands is a warm tongue in the ocean that both causes the winds to converge and is the result of converging winds. The winds create an eastward counter-current (simulated by an ocean GCM in B) that generates the warm band.

SST & Wind (Filtered)

°C

B

SST & Current


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収束

雲水量

風速・SST

長江


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Storm Growth on

the Kuroshio

18Z Feb 3

SST

18Z Feb 4

SLP

Smoothed

9 km SST


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Deep Response to Extratropical SST via Storms

Inatsu, Mukougawa & Xie, JMSJ (2002)

_

U250mb

SST


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ENSOの結合モデル(修論)

準線形WISHEモード(D論)

赤道年周期振動

WESフィードバックと太平洋ITCZ

環大西洋振動

衛星データ解析

大気大循環モデリング

太平洋大循環モデリング

ハワイの島陰

インド洋結合ロスビー波

東シナ海の海気結合

東京日米ゼミ (87)

マイアミEPOCS (92)

バンクーバーCLIVAR (96)

北大院生

NASA QuikSCAT Grant

趕潮 (潮を追う) = N

弄潮 (潮を起す) =


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大学院奨学金

気象学・海洋学・気候学

2003年秋学期より設立

学費免除+奨学金


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Coupled Rossby Waves

Xie, Annamalai, Schott & McCreary, J. Climate (2002)

SST & Precip.

10 oS

Calendar Month

SST, Wind & Precip.

April - May


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Thermocline Depth Z20

r(Z20,SST)

rms(SST) 1970-99

15


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Warming of the World Ocean

Sydney Levitus, * John I. Antonov, Timothy P. Boyer, Cathy Stephens

New study finds warming trend in oceans

March 23, 2000Web posted at: 11:18 p.m. EST (0418 GMT)

Will warmer ocean temperatures heat up the atmosphere?

The team of oceanographers spent seven years compiling more than 5 million ocean temperature readings taken from 1948 to 1996 in the Atlantic, Indian and Pacific oceans.


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