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Articles
  • On water-quality alarm models, with special regard to the model ALAMEK for the Hau River network (Mekong, SR Vietnam)   [EPPH 2015]
  • Author(s)
  • Baumert, H. Z., Stoyan, G., Apel, H., Dung Ng. V.
  • ABSTRACT
  • Chemical spills in major river deltas damage economy and ecology of large, densely populated and highly productive regions of the world. They may happen in trans-boundary rivers and may become a matter of foreign relations, international law and security. A notorious case is the Sandoz/Basel accident touching Swiss and German sections of the Rhine River (1986). The talk reports about a preliminary study towards a general alarm model and decision support system for disaster combat. It shall be applicable to any river system and/or river delta system in the world. It could represent an attractive basis for German-Chinese cooperation in geoscience and technology as well as in subsequent joint marketing of its final endproduct. The river network under consideration here is a branch of the lower Mekong - the Hau river, with a cumulative length of 295 km. It is taken as an abstract graph with 18 logical nodes and 23 sub-branches, each treated as spatially two-dimensional water bodies (we assume complete vertical mixing). The river surface is subdivided into about million computational elements ('nodes'). The following natural processes are considered: (i) hydraulic flow velocity, (ii) longitudinal turbulent mixing, (iii) topological dispersion of dilute and suspended materials, (iv) selected chemical processes, (v) specific biological interactions and their consequences for the aquatic ecosystem, groundwater and atmosphere, (vi) Consequences for human health and environmental security.
  • KEYWORDS
  • On water-quality alarm models, model ALAMEK, Hau River network
  • References

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