Vaguada (geomorfología)

The trough is the line that marks the deepest part of a valley, and is the path through which flow the waters of the natural currents. In scientific terms, the name of Talweg, a voice from the German meaning "valley road", is also used, which is the line connecting the points of lesser height in a valley or in the river bed and where the current, if any, is faster.

In Spanish it is also used in the meteorological sense, by analogy, to designate a barometric depression. In the northern hemisphere, the talweg of the mountiest rivers shifts slightly, but consistently, to the left, according to the so-called Coriolis effect produced by the terrestrial rotation movement. In the southern hemisphere, the displacement is made to the right. The article on river dynamics explains this displacement when referring to the Apure River. And in the route of the Orinoco river could verify that the island Ratón is in Venezuelan territory, which indicates that the talweg passes by the left arm of the island whose border also left, and is Colombian territory.

In law, is made to the trough, especially when it comes to setting the boundary line in a watercourse, although it may be problematic when it comes to ravines, plains and numerous meanders. the channel of a river. The trough line (sometimes also with the name of talweg or thalweg, which is the original name in German) represents in the hydrographic system, inverted, the application of the principle of high peaks in the orographic system.

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