| 20世纪90年代后期南海上层海温变化趋势的转折 |
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| 引用本文： | 王昭允,翟方国,李培良.20世纪90年代后期南海上层海温变化趋势的转折[J].海洋学报(英文版),2016,35(11):44-51. |
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| 作者姓名： | 王昭允 翟方国 李培良 |
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| 作者单位： | 海洋与大气学院, 中国海洋大学, 青岛, 266100,海洋与大气学院, 中国海洋大学, 青岛, 266100,海洋与大气学院, 中国海洋大学, 青岛, 266100 |
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| 摘 要： | In this paper, the interdecadal variability of upper-ocean temperature in the South China Sea(SCS) is investigated based on several objectively analyzed data sets and two reanalysis data sets. The trends of the SCS sea surface temperature(SST) have changed from warming to cooling since the late 1990 s. A heat budget analysis suggests that the warming of the surface mixed layer during 1984–1999 is primarily attributed to the horizontal heat advection and the decrease of upward long wave radiation, with the net surface heat flux playing a damping role due to the increase of upward latent and sensible heat fluxes. On the other hand, the cooling of the surface mixed layer during 2000–2009 is broadly controlled by net surface heat flux, with the radiation flux playing the dominant role. A possible mechanism is explored that the variation of a sea level pressure(SLP) over the North Pacific Ocean may change the prevailing winds over the SCS, which contributes to the change of the SST in the SCS through the horizontal heat advection and heat fluxes.
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| 关 键 词： | 南海 海表面温度 趋势 年代际变化 热收支 |
| 收稿时间： | 2015/10/27 0:00:00 |
| 修稿时间： | 2015/11/30 0:00:00 |
A shift in the upper-ocean temperature trends in the South China Sea since the late 1990s |
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| WANG Zhaoyun,ZHAI Fangguo and LI Peiliang.A shift in the upper-ocean temperature trends in the South China Sea since the late 1990s[J].Acta Oceanologica Sinica,2016,35(11):44-51. |
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| Authors: | WANG Zhaoyun ZHAI Fangguo and LI Peiliang |
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| Institution: | College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao 266100, China |
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| Abstract: | In this paper, the interdecadal variability of upper-ocean temperature in the South China Sea (SCS) is investigated based on several objectively analyzed data sets and two reanalysis data sets. The trends of the SCS sea surface temperature (SST) have changed from warming to cooling since the late 1990s. A heat budget analysis suggests that the warming of the surface mixed layer during 1984-1999 is primarily attributed to the horizontal heat advection and the decrease of upward long wave radiation, with the net surface heat flux playing a damping role due to the increase of upward latent and sensible heat fluxes. On the other hand, the cooling of the surface mixed layer during 2000-2009 is broadly controlled by net surface heat flux, with the radiation flux playing the dominant role. A possible mechanism is explored that the variation of a sea level pressure (SLP) over the North Pacific Ocean may change the prevailing winds over the SCS, which contributes to the change of the SST in the SCS through the horizontal heat advection and heat fluxes. |
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| Keywords: | South China Sea sea surface temperature trend interdecadal variability heat budget |
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