Chinese Journal of Oceanology and Limnology

, Volume 21, Issue 3, pp 193–213

Determination of the current system on isopycnal surface between Mindanao and New Guinea from GDEM

  • Peter C Chu
  • Li Rongfeng
  • Fan Chenwu
Physical Oceanoraphy

DOI: 10.1007/BF02842836

Cite this article as:
Chu, P.C., Rongfeng, L. & Chenwu, F. Chin. J. Ocean. Limnol. (2003) 21: 193. doi:10.1007/BF02842836

Abstract

In this study, we used the Navy’s Generalized Digital Environmental Model (GDEM) climatological temperature and salinity data on a 0.5°×0.5° grid to investigate the seasonal variabilities of the southwest Philippines Sea (0.5°–9°N, 123.5°–136.5°) thermohaline structure and circulation. The GDEM for the area was built up on historical (1930–1997) temperature and salinity profiles. A three-dimensional estimate of the absolute geostrophic velocity field on isopycnal surface was obtained from the GDEM temperature and salinity fields using the P-vector method. The seasonal variabilities of the thermohaline structure and currents (obtained from the inverse method) such as the Mindanao Current, Mindanao Undercurrent, North Equatorial Counter Current, New Guinea Coastal Undercurrent, and dual-eddies (cyclinic Mindanao Eddy and anticyclonic Halmahera Eddy) are identified.

Key words

current system isopycnal surface GDEM 

Copyright information

© Science Press 2003

Authors and Affiliations

  • Peter C Chu
    • 1
  • Li Rongfeng
    • 2
  • Fan Chenwu
    • 1
  1. 1.Naval Ocean Analysis and Prediction Laboratory Department of OceanographyNaval Postgraduate SchoolMontereyUSA
  2. 2.LASG, Institute of Atmospheric PhysicsChinese Academy of SciencesBeijingChina

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