Heat center of the western Pacific warm pool

Shijian Hu; Dunxin Hu

doi:10.1007/s00343-012-1193-9

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Heat center of the western Pacific warm pool

Updated：2023-05-16

- Heat center of the western Pacific warm pool
- Journal of Oceanology and Limnology Vol. 30, Issue 1, Pages: 169-176(2012)
- Affiliations：
  
  1. Institute of Oceanology Chinese Academy of Sciences
  2. Key Laboratory of Ocean Circulation and Wave Chinese Academy of Sciences
  3. Graduate University of Chinese Academy of Sciences
- Author bio：
- Funds：
- DOI：10.1007/s00343-012-1193-9
  CLC：
- Online First：15 November 2012，
  
  Published：2012
- Accepted：
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Hu, S., Hu, D. Heat center of the western Pacific warm pool., Chin. J. Ocean. Limnol. 30, 169–176 (2012). https://doi.org/10.1007/s00343-012-1193-9
DOI：

Hu, S., Hu, D. Heat center of the western Pacific warm pool., Chin. J. Ocean. Limnol. 30, 169–176 (2012). https://doi.org/10.1007/s00343-012-1193-9 DOI：

摘要

Abstract

A heat center (HC) of the western Pacific warm pool (WPWP) is defined

its variability is examined

and a possible mechanism is discussed. Analysis and calculation of a temperature dataset from 1945–2006 show that the mean position of the HC during this period was near 0.4°S/169.0°E

at 38.0 m depth. From a time series of the HC

remarkable seasonal variability was found

mainly in the meridional and vertical directions. Interannual variabilities were dominant in the zonal and vertical directions. In addition

semiannual variation in the HC depth was discovered. The longitude of the HC varies with ENSO events

and its latitude is weakly related to ENSO on time scales shorter than a decade. The variation of the HC longitude leads the Niño-3 index by about 3–4 months

and its depth lags the index for approximately 3 months. It is concluded that the HC depth results from a combination of its longitudinal and latitudinal variations. Low-pass-filtered time series reveal that the HC has moved eastward since the mid 1980s.

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references

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