USGS - science for a changing world

Upper Midwest Environmental Sciences Center

Home/ Overview/ Science Programs/ Data Library/ Products and Publications/States/ Rivers/Teachers and Students/ Links/ Contact/ Search
folder.gifSummary of Monitoring Findings for Fiscal Year 2001
Figures

Figure 11. Dissolved oxygen and snow and ice cover in stratified random sampling of backwaters in Pools 4, 8, and 13 in winter (January-February). From 1994 through 2001, the trend in oxygen concentration generally mirrored snow and ice cover (i.e., increased when the depth of snow and ice decreased).
Chlorophyll-a concentrations (µg/L) in the Mississippi River at northern (A: Pools 4, 8, and 13) and southern (B: Pool 26 and Open River) Long Term Resource Monitoring Program study areas during winter random sampling, 1994

Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://www.umesc.usgs.gov/reports_publications/ltrmp/2001/summary_findings/figure11.html
Page Contact Information: Contacting the Upper Midwest Environmental Sciences Center
Page Last Modified: October 2, 2007