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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
Eigenvector III demonstrates that percent instream cover and average thalweg depth, mean velocity of the stream, and average DO accounts for 19 percent of the variance.
But the strongest argument endorsed against the claim of the sovereignty of the country to the Thalweg line of Arvand River.
Over the river's racket, words wouldn't reach her, nor that thalweg she wants to fall asleep to.
While at one point in history, the Thalweg of the Shatt al-Arab river between the two left the entire river in Iraqi hands, a 1975 treaty moved the Thalweg to the midpoint of the river.
Based on the topographic gradient threshold values field measured along gully thalweg and gully edge line, the slope data were segmented by thresholding to get gully thalweg and gully edge line threshold vectors, respectively.
The process occurs during floods, with fine silt deposition and formation of microrelief meadow and thalweg with flat bottomed specific to all brooks.
At each site, stream physiochemical parameters were measured in the stream thalweg including pH, dissolved oxygen concentration, turbidity, total dissolved solids (TDS), and temperature using a Hydrolab minisonde equipped with an LDO oxygen sensor.
The design of one drainage system, for instance, was based on the concept of a thalweg, the lowest contour line for a particular location and the path of water flow.
Delaware, the Court applied an international principle, the doctrine of the thalweg, to ascertain the location of the states' border in the Delaware River.
But the actual text of the decision seemed to suggest that the boundary was through the middle of the creek, as per the international law's ' Thalweg principle'.