A statistical study on relationship of El Niño events to the hydrography along 137 °E in winter

Cui Maochang; Hu Dunxin

doi:10.1007/BF02850672

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A statistical study on relationship of El Niño events to the hydrography along 137 °E in winter

Updated：2023-05-16

- A statistical study on relationship of El Niño events to the hydrography along 137 °E in winter
- Journal of Oceanology and Limnology Vol. 9, Issue 2, Pages: 132-145(1991)
- Affiliations：
  
  Institute of Oceanology
- Author bio：
- Funds：
- DOI：10.1007/BF02850672
  CLC：
- Published：1991
- Accepted：
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Maochang, C., Dunxin, H. A statistical study on relationship of El Niño events to the hydrography along 137 °E in winter., Chin. J. Ocean. Limnol. 9, 132–145 (1991). https://doi.org/10.1007/BF02850672
DOI：

Maochang, C., Dunxin, H. A statistical study on relationship of El Niño events to the hydrography along 137 °E in winter., Chin. J. Ocean. Limnol. 9, 132–145 (1991). https://doi.org/10.1007/BF02850672 DOI：

摘要

Abstract

Principal component analysis (PCA) as used by meteorologists and oceanographers is a powerful tool for analysis of the spatial and temporal variability of physical fields. This study was 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 a multi-dimensional problem can be reduced to a single-dimensional one

and then stepwise regression analysis can be used to parameterize the relationship between El Niño events and the hydrographic factor anomalies along 137 °E in winter. The results show that the salinity anomalies on 30 m level

the sigmat on 250 m level

and the temperature on 300 m level at 8 °N are most closely related with El Niño events because of thermocline movement caused by enhanced upwelling in this area during El Niño years.

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references

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