Open Access Open Access  Restricted Access Subscription Access

SOME CIRCULATION FEATURES DURING SOUTH-WEST MONSOON IN SOUTHERN VIETNAM’S WATERS

Le Dinh Mau, Nguyen Chi Cong, Nguyen Van Tuan

Abstract


This paper presents some circulation features during South-West (SW) monsoon in Southern Vietnam’s waters. The data were collected from different projects which were carried out by the Institute of Oceanography in recent years. Study results show that during SW monsoon the current mostly flows from the south to the north by wind action, and it is the period of high Mekong river discharge. These conditions are the main causes of Mekong river water spreading to the Central Vietnam upwelling area. Measured data during August and September 2009 indicate that Mekong River water spreads up to about 80 km to 100 km offshore, inclining in the northern part of Mekong river mouth region towards the upwelling area. The extent of river water spreading is directly proportional to the Mekong river discharge and SW monsoon intensity. This phenomenon is significant feature for assessment of the ecological-environmental effects on the upwelling area.

Keywords


Current, Mekong river, upwelling, ecological-environmental, monsoon.

References


Shaw, P. T., and Chao, S. Y., 1994. Surface circulation in the south China Sea (Eastern Vietnam Sea). Deep Sea Research Part I: Oceanographic Research Papers, 41(11-12), 1663-1683.

Pohlmann, T. (1987). A three dimensional circulation model of the South China Sea (Eastern Vietnam Sea). Elsevier oceanography series, 45, 245-268.

Dinh Van Uu, 2011. Easttern Vietnam Sea modeling system for marine environmental prediction and monitoring. Proceedings of the 5th National Conference on Marine Science and Technology, Hanoi, Oct. 2011, Vol. 2: Marine Hydrometeorology and Dynamics, pp. 43-49.

Hein, H., Hein, B., Pohlmann, T., and Long, B. H., 2013. Inter-annual variability of upwelling off the South-Vietnamese coast and its relation to nutrient dynamics. Global and planetary change, 110, 170-182.

Hein, H., Hein, B., and Pohlmann, T., 2013. Recent sediment dynamics in the region of Mekong water influence. Global and Planetary Change, 110, 183-194.

Le Dinh Mau, Pham Sy Hoan, Vu Tuan Anh, Nguyen Chi Cong, Nguyen Ba Xuan, 2011. Some meteo-hydro-dynamical features in Mekong river mouth area. Journal of Marine Science and Technology, 11(3), 31-44.

Robinson, M. K., 1974. The physical oceanography of the Gulf of Thailand, Naga Expedition. NAGA report.

https://www7320.nrlssc.navy.mil/


Full Text: PDF

Refbacks

  • There are currently no refbacks.


Journal of Marine Science and Technology ISSN: 1859 3097

Published by Vietnam Academy of Science and Technology