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Estimating Flow-duration Statistics and Low-flow Frequencies for Selected Streams and the Implementation of a StreamStats Web-based Tool in Puerto Rico

Estimating Flow-duration Statistics and Low-flow Frequencies for Selected Streams and the Implementation of a StreamStats Web-based Tool in Puerto Rico PDF Author: Tara Williams-Sether
Publisher:
ISBN:
Category : Stream measurements
Languages : en
Pages : 17

Book Description

Estimating Flow-duration Statistics and Low-flow Frequencies for Selected Streams and the Implementation of a StreamStats Web-based Tool in Puerto Rico

Estimating Flow-duration Statistics and Low-flow Frequencies for Selected Streams and the Implementation of a StreamStats Web-based Tool in Puerto Rico PDF Author: Tara Williams-Sether
Publisher:
ISBN:
Category : Stream measurements
Languages : en
Pages : 17

Book Description

Obtaining Streamflow Statistics for Massachusetts Streams on the World Wide Web

Obtaining Streamflow Statistics for Massachusetts Streams on the World Wide Web PDF Author:
Publisher:
ISBN:
Category : Stream measurements
Languages : en
Pages : 4

Book Description
A web application (computer online service and data) named STREAMSTATS (available at http://ma.water.usgs.gov/streamstats/) was developed jointly with MassGIS and other agencies.

Methods for Estimating Selected Low-flow Frequency Statistics and Harmonic Mean Flows for Streams in Iowa

Methods for Estimating Selected Low-flow Frequency Statistics and Harmonic Mean Flows for Streams in Iowa PDF Author: David A. Eash
Publisher:
ISBN:
Category : Rivers
Languages : en
Pages : 99

Book Description

The National Streamflow Statistics Program

The National Streamflow Statistics Program PDF Author:
Publisher: DIANE Publishing
ISBN: 9781422325810
Category : National streamflow statistics program
Languages : en
Pages : 98

Book Description

Regional Regression Equations for the Estimation of Selected Monthly Low-flow Duration and Frequency Statistics at Ungaged Sites on Streams in New Jersey

Regional Regression Equations for the Estimation of Selected Monthly Low-flow Duration and Frequency Statistics at Ungaged Sites on Streams in New Jersey PDF Author: Kara M. Watson
Publisher:
ISBN:
Category : Stream measurements
Languages : en
Pages : 0

Book Description

Methods for Estimating Flow-duration Curve and Low-flow Frequency Statistics for Ungaged Locations on Small Streams in Minnesota

Methods for Estimating Flow-duration Curve and Low-flow Frequency Statistics for Ungaged Locations on Small Streams in Minnesota PDF Author: Jeffrey R. Ziegeweid
Publisher:
ISBN:
Category : Stream measurements
Languages : en
Pages : 23

Book Description

Methods for Estimating Selected Low-flow Statistics and Development of Annual Flow-duration Statistics for Ohio

Methods for Estimating Selected Low-flow Statistics and Development of Annual Flow-duration Statistics for Ohio PDF Author: U.S. Department of the Interior
Publisher:
ISBN: 9781499701159
Category : Reference
Languages : en
Pages : 206

Book Description
This report presents the results of a study to develop methods for estimating selected low-flow statistics and for determining annual flow-duration statistics for Ohio streams. Regression techniques were used to develop equations for estimating 10-year recurrence-interval (10-percent annualnonexceedance probability) low-flow yields, in cubic feet per second per square mile, with averaging periods of 1, 7, 30, and 90-day(s), and for estimating the yield corresponding to the long-term 80-percent duration flow.

A Streamflow Statistics (StreamStats) Web Application for Ohio

A Streamflow Statistics (StreamStats) Web Application for Ohio PDF Author: G. F. Koltun
Publisher:
ISBN:
Category : Stream measurements
Languages : en
Pages : 0

Book Description
A StreamStats Web application was developed for Ohio that implements equations for estimating a variety of streamflow statistics including the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year peak streamflows, mean annual streamflow, mean monthly streamflows, harmonic mean streamflow, and 25th-, 50th-, and 75th-percentile streamflows. StreamStats is a Web-based geographic information system application designed to facilitate the estimation of streamflow statistics at ungaged locations on streams. StreamStats can also serve precomputed streamflow statistics determined from streamflow-gaging station data. The basic structure, use, and limitations of StreamStats are described in this report. To facilitate the level of automation required for the StreamStats application, the technique used by Koltun (2003) for computing main-channel slope was replaced with a new computationally robust technique. The new channel slope characteristic, referred to as SL10-85, differed from the National Hydrography Data based channel slope values (SL) reported by Koltun (2003) by an average of -28.3 percent, with the median change being -13.2 percent. In spite of the differences, the two slope measures are strongly correlated. The change in channel slope values necessitated revision of the full-model equations for flood-peak discharges presented by Koltun (2003). Average standard errors of prediction for the revised full-model equations presented in this report increased by a small amount over those reported by Koltun (2003), with increases ranging from 0.7 to 0.9 percent. Mean percentage changes in the revised regression and weighted flood-frequency estimates relative to regression and weighted estimates reported by Koltun (2003) were small, ranging from -0.72 to -0.25 percent and -0.22 to 0.07 percent, respectively.

Methods of estimating selected low-flow statistics and development of annual flow-duration statistics for Ohio

Methods of estimating selected low-flow statistics and development of annual flow-duration statistics for Ohio PDF Author: G. F. Koltun
Publisher:
ISBN:
Category : Stream measurements
Languages : en
Pages :

Book Description

Computed Statistics at Streamgages, and Methods for Estimating Low-flow Frequency Statistics and Development of Regional Regression Equations for Estimating Low-flow Frequency Statistics at Ungaged Locations in Missouri

Computed Statistics at Streamgages, and Methods for Estimating Low-flow Frequency Statistics and Development of Regional Regression Equations for Estimating Low-flow Frequency Statistics at Ungaged Locations in Missouri PDF Author: Rodney E. Southard
Publisher:
ISBN: 9781411335943
Category : Stream measurements
Languages : en
Pages : 0

Book Description

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