Estimation of community oxygen production and demand in the Mississippi river at St. Paul, Minnesota, by use of a dissolved oxygen routing model

Dissolved oxygen production and consumption in two reaches of the Upper Mississippi River at St. Paul were determined from diel1 dissolved oxygen measurements by a routing method. One reach was above the Metro Wastewater Treatment Plant (WWTP) outlet, the other below it. Dissolved oxygen, water temperature, and river flow were measured by the USGS on July 13--14 and August 10-11, 1982. Weather data (wind and solar radiation) were collected simultaneously by the authors. The numerical dissolved oxygen routing model (DORM) developed for the Environmental Protection Agency (EPA) with data from the Monticello Ecological Research Station (MERS) was adapted to the much larger Mississippi River system.