SOME METEO - HYDRO - DYNAMICAL FEATURES IN MEKONG RIVER MOUTH AREA

SOME METEO - HYDRO - DYNAMICAL FEATURES IN MEKONG RIVER MOUTH AREA
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湄公河口地区的一些气象-水力-动力特征

DOI：
10.15625/1859-3097/11/3/377
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
Nguyen Ba Xuan
Nguyen Ba Xuan
中科院分区：
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文献类型：
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作者：
L. D. Mau;Pham Sy Hoan;V. Anh;N. C. Công;Nguyen Ba Xuan

文献摘要

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本文根据风、浪、海水水位、河流流量等长期测量数据的统计结果，提供了湄公河口地区的一些气象水动力特征。研究结果表明，风浪特征的分布特征与季节变化相对应。 NE季风期主导风向为NE，西南季风期主导风向为W、SW向。东北季风期为 11 月至 4 月（12 月和 1 月最强），西南季风期为 6 月至 9 月（8 月最强）。东北季风期的风速和波高均高于西南季风期。头顿站SWL变化显示，潮汐为半日潮，最大值出现在NE季风期（11月最高），最小值出现在SW季风期（6月最低）。两个站点（Mythuan 和 Cantho）的河流流量变化类似。汛期（7 月至 12 月）月平均流量为 4,000 至 15,800 m/s。旱季（一月至五月）两站月平均流量均小于 4,000 m/s。统计数据表明，湄公河口地区是江海水动力相互作用过程强烈而复杂的区域。
This paper provides some meteo-hydro-dynamical feat ur s in Mekong River Mouth area which were based on statistical results from longtime measurement data such as wind, wave, sea water level, and river discharge. S tudy results show that distribution features of wind and wave characteristics are corresponding to seasonal variation. Predominant wind and wave directions during NE Monsoon period is NE, and in W, SW directions during SW Monsoon period. NE Monsoon period is from November to April (strongest in December and January), SW Monsoon period is from June to Septemb er (strongest in August). During NE Monsoon period the wind velocity and wave height we re higher than that of SW Monsoon period. Variation of SWL at Vungtau Station shows t hat he tide is semi-diurnal with maximum value occurred during NE monsoon period (highest in November), and minimum value occurred during SW Monsoon period (lowest in June). Variation of river discharge is similarly at two stations (Mythuan and Cantho). Dur ing flood season (from July to December) average monthly discharge was ranged from 4,000 to 15,800 m/s. During dry season (from January to May) average monthly discharge at both s tations was less than 4,000 m /s. Statistical data show that Mekong River Mouth area is a region of strong and complicated hydro-dynamical interaction processes between river and sea.