Abstract:
Any effort to managing the Batticaloa lagoon well should begin with understanding its
dynamics as a key contributor to flood mitigation and control. Of particular concern in
these regards are the inputs from major and minor irrigation tanks (that are connected
to the lagoon) that disturb the natural stability of the Batticaloa Lagoon. Understanding
the interconnected mechanics of the tanks and the lagoon could be enhanced by the
exploration of the processes through conceptual/mathematical simulation models. In
this respect, a tutorial simulation model: TIL 1.0 was developed using in the STELLA9
v7.03-modelling platform to imitate the interconnectivities between and irrigation tanks
and Batticaloa Lagoon. The Model TIL 1.0 presents an easy to way to simulate different
processes of the problem of concern and generate various outputs such as water raise
in lagoon, water levels, excess water in lagoon, salinity drop, chance offloading, and
Bar-Mouth condition/'s. The unique aspect of the TIL 1.0 is that it is less technical
savvy, and, provides the opportunity to non-scientists (i.e. administrators and bureaucrats)
to understand the lagoon system in a logical manner and consequently take sustainable
decisions in managing the said system.
