| ZENG Lili,LI Xixi,DU Yan,SHI Rui,YAO Jinglong,WANG Dongxiao,SUI Dandan. 2012. Synoptic-scale disturbances over the northern South China Sea and their responses to El Niño. Acta Oceanologica Sinica, (5):69－78 |
| Synoptic-scale disturbances over the northern South China Sea and their responses to El Niño |
| Synoptic-scale disturbances over the northern South China Sea and their responses to El Niño |
| Received:April 06, 2012 Revised:July 24, 2012 |
| DOI：10.1007/s13131-012-0237-5 |
| Key words:northern South China Sea synoptic-scale disturbances El Niño aerological meteorological observation |
| 中文关键词: northern South China Sea synoptic-scale disturbances El Niño aerological meteorological observation |
| 基金项目:The aerological data of Xisha Station were downloaded from http://weather.uwyo.edu/upperair/sounding.html. by The National Natural Basic Research Program ("973" Program) of China, under contract No. 2011CB403501; the Knowledge Innovation Project for Distinguished Young Scholar of the Chinese Academy of Sciences of China under contract No. KZCX2-EWQN203; the Knowledge Innovation Program of the Chinese Academy of Sciences of China under contract No. SQ200916; and the National Natural Science Foundation of China under contract Nos 41206011 and 41106028. |
| Author Name | Affiliation | E-mail | | ZENG Lili | State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China | zenglili@scsio.ac.cn | | LI Xixi | South China Sea Marine Prediction Center, South China Sea Branch, State Oceanic Administration, Guangzhou 510300, China | | | DU Yan | State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China | | | SHI Rui | State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China | | | YAO Jinglong | State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China | | | WANG Dongxiao | State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China | | | SUI Dandan | State Key Laboratory of Tropical Oceanography, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China | |
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| Abstract: |
| Using surface and aerological meteorological observations obtained at the Xisha Automatic Weather Station and three moored buoys along the continental slope, characteristics of the synoptic-scale disturbances over the northern South China Sea (NSCS) are extensively studied. The power spectra of surface and aerological observations suggest a synoptic feature with a pronounced energy peak at a period of 5-8 d and a weak peak at 3-4 d. The standard deviation of the synoptic temperature component derived at Xisha Station from 1976 to 2011 indicates that the strongest variability normally exists in August all through the whole troposphere. At the interannual scale, it is found that El Niño plays an important role in regulating the synoptic disturbances of atmosphere. The vertical synoptic disturbances have a double active peak following El Niño condition. The first peak usually occurs during the mature phase of El Niño, and the second one occurs in the summer of decay year. Comparing with the summer of developing years, the summer of the decaying year of El Niño has more active and stronger synoptic disturbances, especially for the 5-8 d period variations. |
| 中文摘要: |
| Using surface and aerological meteorological observations obtained at the Xisha Automatic Weather Station and three moored buoys along the continental slope, characteristics of the synoptic-scale disturbances over the northern South China Sea (NSCS) are extensively studied. The power spectra of surface and aerological observations suggest a synoptic feature with a pronounced energy peak at a period of 5-8 d and a weak peak at 3-4 d. The standard deviation of the synoptic temperature component derived at Xisha Station from 1976 to 2011 indicates that the strongest variability normally exists in August all through the whole troposphere. At the interannual scale, it is found that El Niño plays an important role in regulating the synoptic disturbances of atmosphere. The vertical synoptic disturbances have a double active peak following El Niño condition. The first peak usually occurs during the mature phase of El Niño, and the second one occurs in the summer of decay year. Comparing with the summer of developing years, the summer of the decaying year of El Niño has more active and stronger synoptic disturbances, especially for the 5-8 d period variations. |
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