Investigating the impact of El Nino & La Nina on water discharge and sediment load in the lower Mekong river at Can Tho and My Thuan stations

Thi Ha Dang

Main Article Content

Abstract

On hydrological data hourly monitored at Can Tho and My Thuan stations during the 2009–2016 period, the paper shows that during the studied period, the water discharge and sediment supplies by the Mekong strongly influenced by climate variation. Specifically, during the La Nina event (2010-2011), the water discharge and sediment increased by about 30-55%. In contrast, during the El Nino event (2015–2016) the water and sediment decreased by 20- 50%.

Article Details

References

[1]. Kondolf, G. M., Schmitt, R. J. P., Carling, P., Darby, P., Arias, M., Bizzi, S., Castelletti, A., Cochrane, T. A., Gibson, S., Kummu, M. (2018), “Changing sediment budget of the Mekong: Cumulative threats and management strategies for a large river basin”, Science of the Total Environment, (625), pp. 114-134.
[2]. Piton, V., Delcroix, T. (2018), Seasonal and interannual (ENSO) climate variabilities and trends in the South China Sea over the last three decades, Ocean Sciences Discussion, doi:10.5194/os-2017-104.
[3]. Southern Oscillation Index, accessed on 20 September 2018, Available from https://www.ncdc.noaa.gov/teleconnections/enso/indicators/soi/.
[4]. Wang, H., Saito, Y., Zhang, Y., Bi, N., Sun, X., Yang, Z. (2011), “Recent changes of sediment flux to the western Pacifi c Ocean from major rivers in East and Southeast Asia”, Earth Sciences Review, (108), pp. 80-100.
[5]. Wang, J. J., Lu, X. X., Kummu, M. (2011), “Sediment load estimates and variations in the lower Mekong River”, River Research Application, (27), pp. 33-46.
[6]. Xue, Z., Liu, J. P., Ge, Q. A. (2011), “Changes in hydrology and sediment delivery of the Mekong River in the last 50 years: Connection to damming, monsoon, and ENSO”, Earth Surface Processes And Landforms, (36), pp. 296-308.