Le modèle mathématique du Delta du Mékong

A mathematical model of the Mekong delta

¹ Professeur à l'Université de Bologne, ancien directeur de la Division des études, de la recherche et de l'enseignement technique de l'organisation des Nations Unies pour l'Education, la Science et la Culture (UNESCO) et directeur du projet du modèle mathématiquc du Delta du Mékong ;
² Chef adjoint du Service hydroélectrique à la Société Grenobloise d'Etudes et d'Applications Hydrauliques (SOGREAH) de Grenoble et ingénieur en chef du projet du modèle mathématique du Delta du Mékong.

Résumé

The project is described in three articles. The first article was published in issue No 1/1968 (pp. 17 to 30). It dealt with the following : (i) The aim of the project and its organisation (preliminary inspection of the area, preliminary model, field measurements and the final model); (ii) The field measurements and main hydrological features of the Delta; The second article was published in No 4/1968 (pp. 255 to 269). It dealt with the following : (iii) Technical reasons for having chosen a mathematical model for the hydraulic model of the Mekong Delta; (iv) General digital solution principles. The third article is in this issue and covers the following main points: (v) 'Construction' of the model (listing and classification of necessary data); (vi) Adjustment of the model, i.e. identification of flood conditions on the model with real-life conditions at 293 points in the Delta, for two different flood types (1963 and 1964); (vii) Operation of the model (i.e. a study of hydraulic effects of the dam on the 1961, 1963 and 1964 floods, which were taken as representative for the investigation) and general conclusions from the investigation, as regards flood attenuation, navigation, farming, dry-season irrigation, salinity control in the part of the Delta in Vietnam.