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Group Meeting

Group Meeting. 2010/03/02 Kirsten Feng. The Oscillations. PDO, Pacific Decadal Oscillation ENSO NPO, North Pacific Oscillation NPGO, North Pacific Gyre Oscillation AO, Arctic Oscillation NAO, North Atlantic Oscillation PNA, Pacific / North American Pattern

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Group Meeting

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  1. Group Meeting 2010/03/02 Kirsten Feng

  2. The Oscillations • PDO, Pacific Decadal Oscillation • ENSO • NPO, North Pacific Oscillation • NPGO, North Pacific Gyre Oscillation • AO, Arctic Oscillation • NAO, North Atlantic Oscillation • PNA, Pacific / North American Pattern • AMO, Atlantic Multi-decadal Oscillation

  3. Atlantic Multi-decadal Oscillation • Upper panel: AMO index: the ten-year running mean of detrended Atlantic sea surface temperature anomaly (SSTA, °C) north of the equator. Lower panel: Correlation of the AMO index with gridded SSTA over the world ocean (all seasons). The thick contour is zero and thin contours denote the 95% significance level.

  4. Diagram • Kuroshio • Oscillation • Observation • simulation • Extension • I. determine their relationships • II. to prove the resolution of ECHAM model

  5. Motivation • Since we have known many oscillations in atmosphere and ocean, we are going to find their relationships and impacts. • Those variations may be branches in a huge structure which possibly dominate the climate. We are trying to see if we can find the similar patterns from our model simulation.

  6. Motivation • We use reconstructed sea surface temperature (SST) and sea level pressure (SLP) dataset and compute their principal components (PC). We find the matured phase as ENSO in PC-1 of SST, and PC-2 as NPO and NPGO.

  7. Objective • First, compared to the references, we analysis the data to obtain the similar resolutions. Then we use ECHAM simulation to do the same process to see if there are the patterns showed as observation. • The second, we hope to improve the understanding of Kuroshio variations and its extension.

  8. Objective • Combined those two parts, we hope to know more about the oscillations and the roles they play in atmosphere and the ocean.

  9. To Be Continued… Thanks!

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