James Ulrich
Science and Products
User’s guide for the Delaware River Basin Streamflow Estimator Tool (DRB-SET)
IntroductionThe 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...
Stuckey, Marla H.; Ulrich, James E.
Estimation of baseline daily mean streamflows for ungaged locations on Pennsylvania streams, water years 1960-2008
Water-resource managers use daily mean streamflows to generate streamflow statistics and analyze streamflow conditions. An in-depth evaluation of flow regimes to promote instream ecological health often requires streamflow information obtainable only from a time series hydrograph. Historically, it has been difficult to estimate daily mean...
Stuckey, Marla H.; Koerkle, Edward H.; Ulrich, James E.
Estimates of ground-water recharge based on streamflow-hydrograph methods: Pennsylvania
This study, completed by the U.S. Geological Survey (USGS) in cooperation with the Pennsylvania Department of Conservation and Natural Resources, Bureau of Topographic and Geologic Survey (T&GS), provides estimates of ground-water recharge for watersheds throughout Pennsylvania computed by use of two automated streamflow-hydrograph-analysis...
Risser, Dennis W.; Conger, Randall W.; Ulrich, James E.; Asmussen, Michael P.