Delft3D Model-based Investigation of the Possible Existence of Large Scale Circulation Patterns along the North Coast of Sri Lanka (Phase 1 Report)

In November 2015, UNESCO-IHE Institute for Water Education was invited to to perform a detailed, state-of-the-art numerical modelling study to comprehensively assess the present-day longshore sediment transport regimes along the North coast of Sri Lanka to inform the planned construction of four fishery harbours along the North coast of Sri Lanka. 

The overall study consists of two Phases. Phase 1 will develop a coarse hydrodynamic model to simulate the dominant large scale wave, wind and tide driven circulation patterns and use those results to design and implement a bathymetric survey of the four study areas (Pesalai, Gurunagar, Point Pedro and Mullaitivu) which will feed into Phase 2. Phase 2 will perform detailed coastal sediment transport modelling for the four sites, and assess the prevailing alongshore sediment transport regime in the four study areas. 

This document dated August 2016, provided for the ADB project 49325-001 and 49325-002 in Sri Lanka, is the deliverable of the first phase of this project and documents the application of coarse grid Delft3D model to determine large scale tidal and wave driven circulation patterns in the vicinity of the four study areas.