Northward expansion of the western Pacific Warm Pool in late 1990s and early 2000s

Yuxing Yang; Faming Wang

doi:10.1007/s00343-012-1209-5

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Northward expansion of the western Pacific Warm Pool in late 1990s and early 2000s

Updated：2023-05-16

- Northward expansion of the western Pacific Warm Pool in late 1990s and early 2000s
- Journal of Oceanology and Limnology Vol. 30, Issue 4, Pages: 684-689(2012)
- Affiliations：
  
  Key Laboratory of Ocean Circulation and Wave Institute of Oceanology Chinese Academy of Sciences
- Author bio：
- Funds：
- DOI：10.1007/s00343-012-1209-5
  CLC：
- Online First：02 July 2012，
  
  Published：2012
- Accepted：
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Yang, Y., Wang, F. Northward expansion of the western Pacific Warm Pool in late 1990s and early 2000s., Chin. J. Ocean. Limnol. 30, 684–689 (2012). https://doi.org/10.1007/s00343-012-1209-5
DOI：

Yang, Y., Wang, F. Northward expansion of the western Pacific Warm Pool in late 1990s and early 2000s., Chin. J. Ocean. Limnol. 30, 684–689 (2012). https://doi.org/10.1007/s00343-012-1209-5 DOI：

摘要

Abstract

Based on 48-year (1958–2006) ocean reanalysis data of Simple Ocean Data Assimilation and 23-year (1984–2006) global ocean-surface heat flux products developed by the Objectively Analyzed Air-Sea Heat Flux Project

meridional variation of the western Pacific Warm Pool (WPWP) is addressed. The results show that there is a significant expansion of the northern edge of the WPWP in the late 1990s and early 2000s. This variation is mainly within 120°E–160°E by 8°N–20°N

we define this region (120°E-1 by 8°N–20°N) as the core region. Furthermore

analyses on upper ocean heat budget show that the short wave radiation plays a key role in the northward expansion of the northern edge of the WPWP in the core region. It is proved that the northward expansion may be caused by the change of the mixed layer which became shallower in 1994–2006 compared with 1984–1993 in the study region. The short wave radiation flux distribution within the shallower mixed layer leads to a positive anomaly in seawater temperature

promoting the northward expansion of the WPWP.

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references

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