User’s guide for the Delaware River Basin Streamflow Estimator Tool (DRB-SET)

Open-File Report 2015-1192
By:  and 



The Delaware River Basin Streamflow Estimator Tool (DRB-SET) is a tool for the simulation of streamflow at a daily time step for an ungaged stream location in the Delaware River Basin. DRB-SET was developed by the U.S. Geological Survey (USGS) and funded through WaterSMART as part of the National Water Census, a USGS research program on national water availability and use that develops new water accounting tools and assesses water availability at the regional and national scales. DRB-SET relates probability exceedances at a gaged location to those at an ungaged stream location. Once the ungaged stream location has been identified by the user, an appropriate streamgage is automatically selected in DRB-SET using streamflow correlation (map correlation method). Alternately, the user can manually select a different streamgage or use the closest streamgage. A report file is generated documenting the reference streamgage and ungaged stream location information, basin characteristics, any warnings, baseline (minimally altered) and altered (affected by regulation, diversion, mining, or other anthropogenic activities) daily mean streamflow, and the mean and median streamflow. The estimated daily flows for the ungaged stream location can be easily exported as a text file that can be used as input into a statistical software package to determine additional streamflow statistics, such as flow duration exceedance or streamflow frequency statistics.

Suggested Citation

Stuckey, M.H., and Ulrich, J.E., 2016, User’s Guide for the Delaware River Basin Streamflow Estimator Tool (DRB-SET): U.S. Geological Survey Open-File Report 2015–1192, 6 p.,

ISSN: 2331-1258 (online)

Table of Contents

  • Introduction
  • Computer Requirements and Installation Instructions
  • Entering Input Data for DRB-SET
  • Running DRB-SET
  • References Cited
Publication type Report
Publication Subtype USGS Numbered Series
Title User’s guide for the Delaware River Basin Streamflow Estimator Tool (DRB-SET)
Series title Open-File Report
Series number 2015-1192
DOI 10.3133/ofr20151192
Year Published 2016
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Pennsylvania Water Science Center
Description iv, 6 p.
Online Only (Y/N) Y
Additional Online Files (Y/N) Y
Google Analytic Metrics Metrics page
Additional publication details