<p>Theoretically, three types of flow systems may occur in a small basin: local, intermediate, and regional. The local systems are separated by subvertical boundaries, and the systems of different order are separated by subhorizontal boundaries. The higher ...

<p>This chapter deals with major transboundary rivers discharging into the<br />Mediterranean Sea and some of their transboundary tributaries. It also<br />includes lakes located within the basin of the Mediterranean Sea.</p>