thalweg

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thalweg

[′täl‚veg]
(geography)
The middle of the principal navigable waterway which serves as a boundary between two states.
(geology)
A line connecting the lowest points along a stream bed or a valley. Also known as valley line.
A line crossing all contour lines on a land surface perpendicularly.
(hydrology)
Water seeping through the ground below the surface in the same direction as a surface stream course.
References in periodicals archive ?
Es decir que el rio en este tramo tiende a encauzarse, al menos en su margen izquierda, lo cual indica una mayor profundidad del talweg hacia esa margen y mayor acumulacion de sedimentos hacia la margen derecha donde se observa acumulaciones de barras de arenas laterales y longitudinales que se adosan a esa margen.
Durante el Ensenadense cuspidal, los rios excavaron sus valles y rellenaron el talweg.
Subject of the order are planning services for the property Planning of the reconstruction Depot SE-d, Unterer Talweg, Augsburg after the performance image of A* 34 HOAI 2013 for performance phases 1-9.
Contract notice: supply canal seine - reinforcement of the concrete trench, installation of a baffling device upstream of the tunnel, improvement of the catchment of the ru du val and the two talwegs on the right bank
the several study accrued in forest roads in Iran, include: The researcher studied the Cross Drainage Design of Forest Road in Shafarood Basin, Guilan Province and results in this research indicate that, drainage pipe diameter in talwegs could be estimated by considering discharge in talwegs, rain intensity, runoff coefficient, area and hydrological conditions.
En general el material depositado es de tipo fluvial y torrencial y en algunos sectores la roca madre aflora en los talwegs dejando en evidencia la profunda erosion fluvial asociada con una tectonica positiva muy activa.