By S. E. Rantz and others
The purpose of this manual is to provide a comprehensive description of state-of-the-art standardized stream-gaging procedures, within the scope described below. The manual is intended for use as a training guide and reference text, primarily for hydraulic engineers and technicians in the U.S. Geological Survey, but the manual is also appropriate for use by other stream-gaging practitioners, both in the United States and elsewhere.
The technical work involved in obtaining systematic records of streamflow is discussed, in two volumes, in accordance with the following six major topics:
Volume 1. Measurement of stage and discharge
Volume 2. Computation of discharge
In order to make the text as broadly usable as possible, discussions of instrumentation
and measurement are aimed at the technician, and discussions of computational
procedure are aimed at the junior engineer who has a background in basic hydraulics.
Many of the procedures for determining discharge that are discussed in volume
2 require specialized instrumentation to obtain field data that supplement the
observation of stage. The descriptions of such specialized equipment and associated
observational techniques are given in appropriate chapters in volume 2 so that
the reader may have unified discussions of the methodologies applicable to each
type of problem in determining discharge.
In general the authors have attempted to prepare a manual that will stand independently-references are given to supplementary published material, but the reader should find relatively few occasions when there is pressing need to consult those references. There are three notable exceptions to that statement.
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