Statistical study on relationship of El Niño events and the hydrography along 137°E in summer

Cui Maochang; Hu Dunxin

doi:10.1007/BF02850747

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Statistical study on relationship of El Niño events and the hydrography along 137°E in summer

Updated：2023-05-16

- Statistical study on relationship of El Niño events and the hydrography along 137°E in summer
- Journal of Oceanology and Limnology Vol. 9, Issue 3, Pages: 222-231(1991)
- Affiliations：
  
  Institute of Oceanology
- Author bio：
- Funds：
- DOI：10.1007/BF02850747
  CLC：
- Published：1991
- Accepted：
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Maochang, C., Dunxin, H. Statistical study on relationship of El Niño events and the hydrography along 137°E in summer., Chin. J. Ocean. Limnol. 9, 222–231 (1991). https://doi.org/10.1007/BF02850747
DOI：

Maochang, C., Dunxin, H. Statistical study on relationship of El Niño events and the hydrography along 137°E in summer., Chin. J. Ocean. Limnol. 9, 222–231 (1991). https://doi.org/10.1007/BF02850747 DOI：

摘要

Abstract

Principal component analysis (PCA) used by meteorologists and oceanographers is a powerful tool for the analysis of the spatial and temporal variability of physical fields. This study is aimed at applying “quasi-local PCA for singular factor” to make the cumulative percentage for the first principal component as great as possible

so that the many-dimension problem can be reduced to a single-dimension one

and at combining PCA with stepwise regression analysis to parameterize the relationship between El Niño events and the anomalies in hydrographic factors along 137°E in summer. The results show that the hydrography on 30–50 m levels at 7–9°N along 137°E in summer is very closely correlated with El Niño events because of the thermocline movement caused by enhanced upwelling in this area during El Niño years.

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references

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