Salt water intrusion in the Mekong River estuary, Vietnam: Observation at low flow season in May 2005
2007
Tateishi, Masaaki | Nguyen, Van Lap | Ta Thi Kim Oanh | Tokuoka, Takao | Fukita, Ayumi | Nishimura, Kiyokazu | Matsuda, Shigeo
Salt water intrusion in the Mekong River, Vietnam, was studied using a towing type echo-sounder (Model SC-3) and water quality meter (TPM CLOROTEC) observation instruments during spring tide of the low flow season in May, 2005. Observations were taken at two stations located at points 26 and 8km from the river mouth. Measurements were taken at hourly intervals for 24 hours during one week, using several instruments set on the river bottom. A joint towing observation system using echo-sounder and water quality meters has been proved its usefulness for analyzing the time-space behavior of salt intrusion in the Mekong River. Precise measurements of tide-related phenomena including water level, bottom currents and water quality (temperature, salinity, turbidity and chlorophyll-a) at two stations revealed detailed movements of the saline water-mass.
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