One Question of the Oceanic Thermohaline Circulation:Whether Deepwater Formation in the North Pacific 

doi:10.11867/j.issn.1001-8166.2006.11.1185

Advances in Earth Science ›› 2006, Vol. 21 ›› Issue (11): 1185-1192. doi: 10.11867/j.issn.1001-8166.2006.11.1185

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One Question of the Oceanic Thermohaline Circulation:Whether Deepwater Formation in the North Pacific 

Liu Yu ^1,4,Guan Yuping ^1,3,Lin Yihua ²

1.Key Laboratory of Tropical Marine Environmental Dynamics, South China Sea Institute of Oceanology, CAS, Guangzhou 510301, China;2.State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, CAS, Beijing 100029, China;3. Marine Science College, Zhejiang Ocean University, Zhoushan 316004, China;4. Graduate School of Chinese Academy of Sciences, Beijing 100049, China

Received:2006-05-24 Revised:2006-09-25 Online:2006-11-15 Published:2006-11-15

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Liu Yu,Guan Yuping,Lin Yihua. One Question of the Oceanic Thermohaline Circulation:Whether Deepwater Formation in the North Pacific [J]. Advances in Earth Science, 2006, 21(11): 1185-1192.

One of the characteristics of modern thermohaline circulation is that deepwater produced in the North Atlantic but not in the North Pacific, and this asymmetry has a deep impact on the climate. Theoretically, there are multi-equilibria states of the thermohaline circulation corresponding to different climates. However, whether the deep water was produced in the ancient North Pacific is a debate topic. Reasons of no deepwater formation in the modern North Pacific are introduced. Among others, vapor transport by Asian monsoon and lower evaporation are two major factors.

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