globalchange  > 气候减缓与适应
DOI: 10.1038/ngeo2188
论文题名:
The Indonesian seas and their role in the coupled ocean-climate system
作者: Sprintall J.; Gordon A.L.; Koch-Larrouy A.; Lee T.; Potemra J.T.; Pujiana K.; Wijffels S.E.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2014
卷: 7, 期:7
起始页码: 487
结束页码: 492
语种: 英语
Scopus关键词: atmosphere-ocean coupling ; climate feedback ; El Nino ; El Nino-Southern Oscillation ; heat flux ; salinity ; sea surface temperature ; strait ; surface flux ; thermocline ; throughflow ; velocity profile ; vertical mixing ; water flow ; wind profile ; Indian Ocean ; Indonesian seas ; Pacific Ocean
英文摘要: The Indonesian seas represent the only pathway that connects different ocean basins in the tropics, and therefore play a pivotal role in the coupled ocean and climate system. Here, water flows from the Pacific to the Indian Ocean through a series of narrow straits. The throughflow is characterized by strong velocities at water depths of about 100 m, with more minor contributions from surface flow than previously thought. A synthesis of observational data and model simulations indicates that the temperature, salinity and velocity depth profiles of the Indonesian throughflow are determined by intense vertical mixing within the Indonesian seas. This mixing results in the net upwelling of thermocline water in the Indonesian seas, which in turn lowers sea surface temperatures in this region by about 0.5 °C, with implications for precipitation and air-sea heat flux. Moreover, the depth and velocity of the core of the Indonesian throughflow has varied with the El Niño/Southern Oscillation and Indian Ocean Dipole on interannual to decadal timescales. Specifically, the throughflow slows and shoals during El Niño events. Changes in the Indonesian throughflow alter surface and subsurface heat content and sea level in the Indian Ocean between 10 and 15° S. We conclude that inter-ocean exchange through the Indonesian seas serves as a feedback modulating the regional precipitation and wind patterns. © 2014 Macmillan Publishers Limited.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/106550
Appears in Collections:气候减缓与适应
科学计划与规划

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作者单位: Scripps Institution of Oceanography, University of California, San Diego, San Diego, CA 92093-0230, United States; Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, United States; LEGOS, 18 avenue Edouard Belin, 31401, Toulouse Cedex 9, France; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109, United States; SOEST/IPRC, University of Hawaii at Manoa, Honolulu, HI 96822, United States; College of Earth,Ocean and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331-5503, United States; Faculty of Earth Sciences and Technology, Institut Teknologi Bandung, Bandung 40132, Indonesia; CSIRO Marine and Atmospheric Research, Hobart, TAS 7000, Australia

Recommended Citation:
Sprintall J.,Gordon A.L.,Koch-Larrouy A.,et al. The Indonesian seas and their role in the coupled ocean-climate system[J]. Nature Geoscience,2014-01-01,7(7)
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