Introduction

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This workshop demonstrates typical mathematical operations with HEC-DSSVue, computing reservoir inflow from gaged outflow and elevation data.  It consists of three phases:

  1. Data Screening and Estimating
  2. Normalizing Data (Time Series Manipulation)
  3. Hydrologic Computations

The data sets and calculations used in this workshop are based on the gages and computational procedures used in support of regulation of the Corps' Lake Winnebago project.  This shallow, glacially-formed lake covers approximately 214 square miles in east-central Wisconsin.  As shown in the figure below, it is roughly oval in shape, with the major axis running north-south. 

Location Map

The city of Fond Du Lac occupies the southern end of the lake.  The Jefferson Park gage resides at the lake’s northern end in Menasha, where the lake flows out to form the Fox River.  A gage located a couple of miles downstream at Appleton’s Lutz Park provides real-time outflows.   The Fox River heads northeast for approximately 30 miles, passing through 7 low-head, run-of-river dams, until it empties into Lake Michigan at Green Bay.