The best exposures of pseudochannels are at the Wilson Creek, Walnut Creek, Canyoun Creek, and Gerald Wash section localities. The features are restricted to the gray unit of the upper member and nearly all of the well-developed pseudochannels are in the gray facies and the gray sandstone.
Source: wiktionary
The large pseudochannel seen in cross section in the center of the photograph is surrounded by a multitude of smaller pseudochannels.
Source: wiktionary
This method requires that pseudochannel boundaries be located in the flow reach upstream from each of the openings to simulate the actual upstream boundaries of the single-opening constriction.
Source: wiktionary
To determine the discharge, establish in the approach channel pseudochannel boundaries which divide the flow between openings. This procedure defines a separate approach channel for each individual opening.
Source: wiktionary
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