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toga-coare IOP期间赤道西太平洋海表壁垒层的研究

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海洋与湖沼 1998年第6期29卷 632-639页

作者：徐炳荣林传兰董如洲厉善华国家海洋局第二海洋研究所杭州310012

根据“向阳红五号”调查船于1992－1993年toga－coare（TropicalOceanandGlobalAtmosphere－CoupledDeeanAtmosphereResponseExperiment）强化观测期（IOP）期间，在赤道西太平洋观测到的CTD、海面气象等资料，计算了海表barrierlayer（壁垒层）厚度。并对该海区壁垒层厚度的变化特征及机制作初步分析研究。结果表明，该海区观测期间壁垒层平均厚度为11．9m，较历史平均值薄，并有明显的逐日变化。局地强降水及海面风速主要通过影响海表混合层深度的变化，大尺度风场、流况主要通过影响等温层深度的变化而使壁垒层厚度发生变化。

关键词： toga-coare 赤道西太平洋壁垒层海表

toga-coare IOP期间的海气通量观测结果

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地球物理学报 1997年第6期40卷 753-762页

作者：陈陟李诗明吕乃平周明煜吴志明严志金国家海洋环境预报研究中心吉林白城89871部队

在toga－coareIOP期间用涡度相关法对海气热通量进行了船载直接观测．对垂直风速、温度和湿度湍流脉动观测数据的谱分析显示它们在高频区基本满足"－2／3次方律"．对船体简谐震荡影响的讨论从理论上证明该影响在热通量计算中可被忽略．... 详细信息

在toga－coareIOP期间用涡度相关法对海气热通量进行了船载直接观测．对垂直风速、温度和湿度湍流脉动观测数据的谱分析显示它们在高频区基本满足"－2／3次方律"．对船体简谐震荡影响的讨论从理论上证明该影响在热通量计算中可被忽略．根据以此方法得到的通量求出了中性层结条件下感热和潜热的整体输送系数分别为2．25×10（－3）和1．26×10（－3）．对海气边界层特性的分析表明该海域的近海层主要呈中性或弱不稳定层结．海气通量的变化与背景环流形势密切相关，潜热通量主要受海面风场强度的影响，而感热通量变化除了风场的影响外，层结变化也是一个重要因素．用整体输送法计算toga－coareIOP期间以及toga期间8个航次的通量结果而得到的Bowen比约为0．1，显示潜热通量是暖池大气的主要热源．

关键词： toga-coare 海气通量涡度相关法观测结果

CHARACTERISTICS OF HEAT FLUX OVER THE TROPICAL WESTERN PACIFIC DURING THE IOP OF toga-coare

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Journal of Tropical Meteorology 1998年第1期4卷 22-29页

作者：马柱国冯松王冬梅

Based on the surface meteorological and radiosonde data during the IOP of toga-coare (Tropical Ocean Global Atmospheric-Coupled Ocean Atmospheric Response Experiment) at the observation site (2°15′S, 158°E)of "R/V Shiyan 3", characteristics of the heat flux, especially that pertaining two WWBs (westerly wind bursts)over the tropical western Pacific for the IOP, are exhaustively analyzed. Meanwhile, the relationships among large-scale circulation and mid-and-high latitude circulation are discussed. The results show that the latent and sensible heat fluxes from sea surface to air over the tropical western Pacific are very strong in both the WWBs,and that their causes of formation have important relations with cross-equatorial flow from the winter hemisphere,and the heat exchange over sea surface varies with different weather condition.

关键词： toga-coare sensible heat flux latent heat flux westerly wind burst

The slanting property of semi-diurnal internal tide propagation in the Pacific Ocean at 1°45′S,156°E

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Acta Oceanologica Sinica 2006年第4期25卷 143-145页

作者： BAO Xianwen ZHANG Yijun SUN Li DU Tao FANG Xinhua Physical Oceanography Laboratory Ocean University of China Qingdao 266003 China National Marine Data ＆ Information Service Tianjin 300171 China

By analyzing a data set collected using a moored instrument array and CTD during toga-coare, it is found that there exist remarkable internal tides in the western equatorial Pacific Ocean around 1°45′S, 156°E, whose horizontal wavenumber （wavelength）, vertical wavenumber, h 156° orizontal propagation speed and vertical propagation speed are 3.3×10^-2 km^-1 （210 km）, - 1.6×10^-3m, 2.0 m/s and -3.8 cm/s, respectively, that is, the waveform propagates downwards slantingly. Moreover, the propagating direction rotates statistically clockwise as the depth increases and its cause is unclear.

关键词： internal waves internal tides western equatorial Pacific Ocean toga-coare

Characteristics of Semi-diurnal Internal Tides in the Western Equatorial Pacific Ocean Around 1°45′S,156°E

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Marine Science Bulletin 2006年第2期8卷 12-20页

作者：鲍献文张义钧孙丽杜涛方欣华中国海洋大学物理海洋实验室山东青岛266003 国家海洋信息中心天津300171

The analyses of a data series obtained during toga- coare show the existence of remarkable semi-diurnal intemal tides in the western equatorial Pacific Ocean around 1°45＇S, 156°E. Some characteristic parameters of the internal tides are vertical wavenumber -1.6×10^-3 m^-1, horizontal wavenumber （wavelength） 3.3×10^-2 km^-1 （210 km）, vertical propagation speed -3.8 cm/s and horizontal propagation speed 2.0 m/s. The waveforms propagate downwards slantingly, that is, the wave energy transfers upwards slantingly. Depth-distribution of the＇rotary spectral levels is a saddle-shape. The depths of the trough and the deeper peaks are almost coincident with those of the south boundaries of the South Equatorial Current and the Equatorial Undercurrent, respectively. The mean orientation of the rotary spectral ellipse changes with depth： 30° from north to east at 40 m, and changes into 14° from east to south at 324 m, and generally, it points to northeastward, which indicates ＂that waves come from the southwest.

关键词： internal waves internal tides western equatorial Pacific Ocean toga-coare

ANALYSIS OF THE CHARACTERISTICS OF EQUATORIAL WESTERLIES

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Journal of Tropical Meteorology 1995年第1期1卷 56-66页

作者：李若钝邹娥梅刘丽惠孙瑞本施国强苏新锁

The real-time data of the high level atmosphere obtained by the R/V Xiangyanghong No. 5 involved in the international toga-coare project at 2°S, 155°E and at fixed real time of 05, 11, 19 and 23 h GMT each day from Nov. 5, 1992 to Feb. 18, 1993 are used to analyze diagnostically the vertical structure of wind and humidity over the central area of the warm pool. The results show that (1) the lowfrequency oscillation of the equatorial westerlies (i. e. reconstruction-development --decline) is closely related to the vigour and interruption of the Asian-Australian monsoon (including air flow across the equator caused by East Asia cold wave), (2) the variabilities of the vertical structure of wind and humidity, and the processes of precipitation and gale weather in the troposphere of the warm pool area are closely related to the intensity of the equatorial westerlies, and (3) there are strong wind belts over the high and low level atmosphere in the western equatorial Pacific at the inception of the ENSO event, and jet flow at the high and low level atmosphere during the equatorial westerly burst.

关键词： equatorial westerlies toga-coare equatorial westerly burst upper-and lowlevel westerly jets

THE　INTRASEASONAL　VARIABILITY　OF　SURFACE　WIND　AND　UPPER　LAYER　THERMAL　STRUCTURE　IN　THE　WESTERN　TROPICAL　PACIFIC　WARM　POOL　REGION　DURING　THE　WINTER　OF　1992～1993

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Journal of Tropical Meteorology 1996年第2期2卷 137-147页

作者：邹娥梅李若钝李坤平曾宪模 ***

In this paper, the hydrographical and meteorological data observed by the R/Vs 'Xiang Yang Hong No. 5', 'Experiment No. 3'and 'Ke Xue No. 1 'during toga-coare IOP are used to analyze the variability of surface wind and upper layer thermal structure, and to reveal the periods of intraseasonal oscillation of surface wind components and certain layers of sea temperature from November 6, 1992 to February 18, 1993 in the western tropical Pacific warm pool region. It is shown that the variation of the sea surface temperature (SST) was inversely correlated to that of surface wind components. It is also indicated from spectral analysis that the significant periods of intraseasonal oscillation of daily mean zonal wind (MZW) were 30- to 60- day and 8- to 9- day long, and that of mean meridional wind (MMW)was 6- to 7- day long. The fluctuation of daily mean sea temperature (MST) in certain layers from surface to the 250 m layer also had the 30- to 60- day low frequency oscillation except for the 150 m layer,and the fluctuations of the daily MST in 100, 150, 200 and 250 m layers had the same 3-day period,their coherence and phase differences were over 0. 90 and between 319° and 353° respectively, which implies the fluctuations of daily MST from 100 to 250 m layers were in phase with each other in the same 3-day period. The analysis of in situ observations revealed a physical evidence of the westerly wind bursts (WWBs) which trigger off the eastward movement of warm water through intraseasonal oscillation and induce the onset of E1 Nino event.

关键词： toga-coare IOP intraseasonal oscillation westerly wind bursts spectral analysis