Download or read book Trends in Streamflow and Nutrient and Suspended sediment Concentrations and Loads in the Upper Mississippi Ohio Red and Great Lakes River Basins 1975 2004 written by D. L. Lorenz and published by Geological Survey (USGS). This book was released on 2009 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preparing for the Third Decade of the National Water Quality Assessment Program written by National Research Council and published by National Academies Press. This book was released on 2012-12-20 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first two decades of the U.S. Geological Survey's National Water Quality Assessment (NAWQA) Program have provided a successful and useful assessment of U.S. water-quality conditions, how they have changed over time, and how natural features and human activities have affected those conditions. Now, planning is underway for the third decade (Cycle 3) of the Program outlined in the Science Plan, with challenges including ensuring that the NAWQA remain a national program in the face of declining resources, balancing new activities against long-term studies, and maintaining focus amidst numerous and competing stakeholder demands. The Science Plan for Cycle 3 articulates a forward-thinking vision for NAWQA science over the next decade, building on the previous cycles' data, experience, and products. Preparing for the Third Decade (Cycle 3) of the National Water-Quality Assessment (NAWQA) Program explains the national needs outlined in the plan, NAWQA's need to emphasize collaboration with other USGS and external programs, other federal agencies, state and local governments, and the private sector.
Download or read book Trends in Nutrient Concentration and Load for Streams in the Mississippi River Basin 1974 94 written by Dee L. Lurry and published by . This book was released on 1997 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Downward Trend in Mississippi River Suspended sediment Loads written by and published by . This book was released on 1990 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water Availability and Use Pilot written by Howard William Reeves and published by Geological Survey (USGS). This book was released on 2010 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Water quality Assessment of Part of the Upper Mississippi River Basin Study Unit Minnesota and Wisconsin written by Sharon E. Kroening and published by . This book was released on 2003 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nutrients in the Upper Mississippi River written by and published by . This book was released on 2003 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trends in suspended sediment loads and concentrations in the Mississippi River Basin 1950 2009 written by David C. Heimann and published by . This book was released on 2011 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trends in Suspended Sediment Loads and Concentrations in the Mississippi River Basin 1950 2009 written by U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-07-23 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trends in loads and concentrations of suspended sedi-ment and suspended sand generally were downward for sta-tions within the Mississippi River Basin during the 60-, 34-, and 12-year periods analyzed. Sediment transport in the lower Mississippi River has historically been, and continues to be, most closely correlative to sediment contributions from the Missouri River, which generally carried the largest annual suspended-sediment load of the major Mississippi River sub-basins. The closure of Fort Randall Dam in the upper Missouri River in 1952 was the single largest event in the recorded historical decline of suspended-sediment loads in the Missis-sippi River Basin.
Download or read book Variability of Nutrients in Streams in Part of the Upper Mississippi River Basin Minnesota and Wisconsin written by Sharon E. Kroening and published by . This book was released on 1997 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flux and Sources of Nutrients in the Mississippi Atchafalaya River Basin written by and published by . This book was released on 1999 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Streamflow and Nutrient Data for the Yazoo River Below Steele Bayou Near Long Lake Mississippi 1996 2000 written by M. S. Runner and published by . This book was released on 2002 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nutrients in the Upper Mississippi River Etc U S Geological Survey Fact Sheet 105 03 July 2003 written by and published by . This book was released on 2004 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sediment Response to Large scale Environmental Change written by Richard P. R. Pannell and published by . This book was released on 1999 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Knowledge about sediment yields is important in developing management strategies for fluvial systems. The effect of sediment must be considered in the design of river structures and in determining water quality for biotic systems. Changes in sediment transport regimes are difficult to understand or predict due to the complexity of factors that influence sediment flux in fluvial systems. Relationships about sediment source, sinks and transport have long been studied and many of these relationships have been quantitatively and qualitatively defined. However, due to the scarcity of long-term sediment records it is often difficult to test these relationships. This study examines one of these long-term suspended sediment records for the Mississippi River at East Dubuque, Illinois from 1943 to 1996. Daily suspended sediment concentrations from the United States Army Corps of Engineers station at East Dubuque were analyzed for the spring and summer months (March - August). Sediment concentrations were analyzed in terms of average concentration during different hydrologic events at the large basin scale. These events included the spring snowmelt runoff (low and high magnitude) and different intensity storm runoff (low, moderate and high). Additionally, peak sediment concentrations during storm runoff were also analyzed. The general trend for all of these analyses suggests a significant decrease in sediment concentrations from the 1940s to the 1990s. The strongest trends are found in high magnitude snowmelt runoff and in high and moderate magnitude storm runoff. Peak concentrations in storm runoff have decreased from about 1000 ppm in the l940s to about 200 ppm in the 1990s. Average concentrations have likewise decreased from about 200 ppm in the 1940s to 100 ppm in the 1990s. Changes in land management practices are identified as being the primary environmental factor influencing sediment concentrations.
Download or read book Upper Mississippi River Comprehensive Basin Study Appendix A Q written by Upper Mississippi River Comprehensive Basin Study Coordinating Committee and published by . This book was released on 1970 with total page 554 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Major Ions Nutrients and Trace Elements in the Mississippi River Near Thebes Illinois July Through September 1993 written by and published by . This book was released on 1994 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Occurrence and Transport of Agricultural Chemicals in the Mississippi River Basin July Through August 1993 written by D. A. Goolsby and published by . This book was released on 1993 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: