Estimation of streamflow characteristics and assessment of trends in the Niobrara River at Mariaville, Nebraska
Water-Resources Investigations Report
87-4073
By: E.E. Fischer
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Abstract
A computer model was used to synthesize a long-term streamflow record for the Niobrara River at Mariaville, Nebraska. The record was developed on the basis of 30-plus years of streamflow data from 3 upstream sites, and the U. S. Geological Survey 's CONROUT model was calibrated using 294 days of measured flow at Mariaville; for the calibration period, 87% of the synthesized daily discharges were within 15% of the measured values. The synthesized record was analyzed for trends in streamflow characteristics. A marked decrease in the average consecutive-day, low-flow discharges was detected after 1964, ranging between 162 cu ft/sec less for the 1-day low flow and 200 cu ft/sec less for the 14-day low flow. The decrease probably was caused by the start-up of operations at Merritt Reservoir. (Author 's abstract)
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Estimation of streamflow characteristics and assessment of trends in the Niobrara River at Mariaville, Nebraska |
| Series title | Water-Resources Investigations Report |
| Series number | 87-4073 |
| DOI | 10.3133/wri874073 |
| Edition | - |
| Year Published | 1987 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey, |
| Description | iv, 25 p. :ill., maps ;28 cm. |
| Google Analytic Metrics | Metrics page |