scholarly journals Estimates of long-term mean daily streamflow and annual nutrient and suspended-sediment loads considered for use in regional SPARROW models of the Conterminous United States, 2012 base year

2019 ◽  
Author(s):  
David A. Saad ◽  
Gregory E. Schwarz ◽  
Denise M. Argue ◽  
David W. Anning ◽  
Scott A. Ator ◽  
...  
Keyword(s):  
United States ◽  
Suspended Sediment ◽  
Daily Streamflow ◽  
Sediment Loads

Data Used in Analyses of Trends, and Nutrient and Suspended-Sediment Loads for Streams in the Southeastern United States, 1973-2005

Data Series ◽  
10.3133/ds488 ◽  
2010 ◽  
Author(s):  
Erik L. Staub ◽  
Kelly L. Peak ◽  
Kirsten C. Tighe ◽  
Eric M. Sadorf ◽  
Douglas A. Harned
Keyword(s):  
United States ◽  
Suspended Sediment ◽  
Southeastern United States ◽  
Sediment Loads

Long-Term Stream Discharge and Suspended-Sediment Database, Reynolds Creek Experimental Watershed, Idaho, United States

2001 ◽  
Vol 37 (11) ◽  
pp. 2857-2861 ◽  
Author(s):  
Frederick B. Pierson ◽  
Charles W. Slaughter ◽  
Zane K. Cram
Keyword(s):  
United States ◽  
Suspended Sediment ◽  
Stream Discharge ◽  
Reynolds Creek

scholarly journals The probability distribution of daily streamflow in the conterminous United States

2016 ◽  
Author(s):  
Annalise G. Blum ◽  
Richard M. Vogel ◽  
Stacey A. Archfield
Keyword(s):  
United States ◽  
Probability Distribution ◽  
Regression Models ◽  
Probability Distributions ◽  
Practical Method ◽  
Daily Streamflow ◽  
Flow Duration ◽  
Generalized Pareto ◽  
Flow Duration Curves

Abstract. One of the most commonly used tools in hydrology, empirical flow duration curves (FDCs) characterize the frequency with which streamflows are equaled or exceeded. Finding a suitable probability distribution to approximate a FDC enables regionalization and prediction of FDCs in basins that lack streamflow measurements. FDCs constructed from daily streamflow observations can be computed as the period-of-record FDC (POR-FDC) to represent long-term streamflow conditions or as the median annual FDC (MA-FDC) to represent streamflows in a typical year. The goal of this study is to identify suitable probability distributions for both POR-FDCs and MA-FDCs of daily streamflow for unregulated and perennial streams. Comparisons of modeled and empirical FDCs at over 400 unregulated stream gages across the conterminous United States reveal that both the four-parameter kappa (KAP) and three-parameter generalized Pareto (GPA3) distributions can provide reasonable approximations to MA-FDCs; however, even four and five-parameter distributions are unable to capture the complexity of the POR-FDC behavior for which flows often range over five or more orders of magnitude. Regional regression models developed for the mid-Atlantic and Missouri regions as case studies present a simple and practical method to predict MA-FDCs at ungaged sites, which can be accurately predicted more consistently compared to POR-FDCs.

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