Geology topics

John Shen

Publications and source records attributed to John Shen.

3 recordsLinked to original sources

USGS1979

Discharge characteristics of triangular-notch thin-plate weirs

The triangular-notch, thin-plate weir is a convenient, inexpensive, and relatively precise flow-measuring instrument. It is frequently used to measure the flow of water in laboratories and in small, natural streams. The purpose of this report is to present a comprehensive analysis of the discharge characteristics of triangular-notch weirs. Previously-published data are analyzed in the light of the effective-head concept, and a new discharge formula is proposed. Coefficients are recommended, and requirements for precise measurements are described. Limits of applicability are discussed. The report includes an extensive review of the literature of triangular-notch weirs.

Open-File Report↗

USGS1965

Use of analog models in the analysis of flood runoff

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Professional Paper↗

USGS1963

Use of hydrologic models in the analysis of flood runoff

The analog technique is applied to the analysis of flood runoff. A quasi-linear analog model has been developed for simulating the runoff-producing characteristics of a drainage system. Where storage is linear a unique relationship correlating the inflow and outflow peaks is derived. The technique for synthesizing flood-frequency distribution is also discussed. It is found that a linear-basin system would not modify the type of probability distribution of its inflow, whereas a nonlinear-basin system would.

Monograph↗