Download or read book Characterization of the Suspended sediment Regime and Bed material Gradation of the Mississippi River Basin written by Elba A. Dardeau and published by . This book was released on 1981 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization of the Suspended Sediment Regime and Bed Material Gradation of the Mississippi River Basin Potamology Program P I Report 1 written by Malcolm P. Keown and published by . This book was released on 1981 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study reported herein is a component of the Potamology Program of the Lower Mississippi Valley Division. The Potamology Program is a comprehensive study of physical forces which influence the flood carrying capacity and navigability of the lower Mississippi River. The purpose of the Potamology Program is to define cause-and-effect relationships that result in short-term and long-term changes in the lower Mississippi River's stage-discharge relationships and to develop improved design concepts and criteria for construction of channel stabilization works which will improve flood control and navigation along the lower Mississippi River. The Potamology Program is composed of two major components: Sedimentation, Mississippi River Basin; and Aggradation and Degradation, Mississippi River. This study is one item under the Sedimentation component.
Download or read book Characterization of the Suspended Sediment Regime and Bed Material Gradation of the Mississippi River Basin Potamology Program P I Report 1 written by ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENVIRONMENTAL LAB. and published by . This book was released on 1981 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Lower Mississippi River Basin is not a significant source area for material that can be eventually transported as suspened sediment; however, because of the strategic location of the basin between a large portion of the interior of the North American Continent and the Gulf of Mexico, it must pass large volumes of water and sediment through its major waterways. Even in its natural state, the Mississippi River was a heavy sediment-bearing stream, and if left to the natural order of events, would probably be building a new main-stem delta in what is now the atchafalaya Subbasin. The greatest single suspended-sediment contributor to the Lower Mississippi River is the Upper Mississippi, which in turn derives much of its load from the Missouri River. Although many tributaries upstream from the Upper Mississippi-Missouri confluence contribute measurable loads to the main stem, the Missouri River input dominates the character of the suspened-sediment regime of the Upper Mississippi between St. Louis and Cairo.
Download or read book Characterization of the Suspended Sediment Regime and Bed Material Gradation of the Mississippi River Basin Potamology Program P I Report 1 written by and published by . This book was released on 1981 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study reported herein is a component of the Potamology Program of the Lower Mississippi Valley Division. The Potamology Program is a comprehensive study of physical forces which influence the flood carrying capacity and navigability of the lower Mississippi River. The purpose of the Potamology Program is to define cause-and-effect relationships that result in short-term and long-term changes in the lower Mississippi River's stage-discharge relationships and to develop improved design concepts and criteria for construction of channel stabilization works which will improve flood control and navigation along the lower Mississippi River. The Potamology Program is composed of two major components: Sedimentation, Mississippi River Basin; and Aggradation and Degradation, Mississippi River. This study is one item under the Sedimentation component.
Download or read book Characterization of the Suspended sediment Regime and Bed material Gradation of the Mississippi River Basin written by and published by . This book was released on 1981 with total page 874 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Characterization of the Suspended sediment Regime and Bed material Gradation of the Mississippi River Basin written by Malcolm Price Keown and published by . This book was released on 1981 with total page 502 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 Suspended Sediment and Bed Material Studies on the Lower Mississippi River written by Lamont G. Robbins and published by . This book was released on 1977 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ultimate purpose of sediment studies is to develop a workable knowledge of the basic principles controlling the transport of sediment in the Lower Mississippi River and to apply this knowledge toward effective and economical stabilization works for flood control and navigation. The more immediate purpose of this report, however, is to present the data that have been collected and analyzed to date (1929-1974) and to show what trends exist in the quantities and sizes of suspended and bed sediments for the Vicksburg District.
Download or read book Notes on Sedimentation Activities written by and published by . This book was released on 1978 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Inventory of Sediment Sample Collection Stations in the Mississippi River Basin written by Malcolm Price Keown and published by . This book was released on 1977 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Suspended sediment and Associated Chemical Transport Characteristics of the Lower Mississippi River Louisiana written by Charles R. Demas and published by . This book was released on 1988 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Field Study of Sediment Transport Characteristics of the Mississippi River Near Fox Island RM 355 6 and Buzzard Island RM 349 50 written by Tatsuaki Nakato and published by . This book was released on 1977 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field study was conducted in order to obtain a better understanding of the flow and sediment-transport mechanisms responsible for the recurrent shoaling that has been experienced in the vicinities of Fox Island (RM-355-6)and Buzzard Island (RM-349-50) in Pool 20 between Keokuk, Iowa, and Canton, Missouri, in the Mississippi River. Three sets of detailed data on transverse and streamwise distributions of flow velocity, suspended sediment discharge, bed-load discharge, bed-material properties, and flow depth were obtained for the high, intermediate, and low river stages during the period between May and September, 1976. The field data were used to establish empirical relationships between the sediment transport rates and hydraulic quantities in the study reaches. Based on the empirical sediment discharge formulas, closures of some side-channels to increase-transport capacity in the main channel of the study reaches have been suggested. (Author).
Download or read book Morphodynamics of the Mississippi River written by Colin R. Thorne and published by . This book was released on 2001 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Lower Mississippi River, extending from Cairo, Illinois to the Gulf of Mexico, annually transports approximately 170 million tonnes of sediment. Historically, the quantity and calibre of sediment derived from catchment erosion have been affected by changes in land-use and management. For example, soil erosion increased during the 19th and early 20th centuries due to settlement by Europeans and this may have elevated catchment sediment supply to the Mississippi River, while more recently the supply of sediment from tributaries is known to have decreased markedly as a result of river engineering and management. Specifically, the construction of large dams as part of the Mississippi River and Tributaries (MR & T) Project has trapped sediment that would otherwise have been supplied to the Mississippi, particularly by the Missouri River. Marked changes have also occurred in the extent of eroding bankline along the Mississippi and these must have reduced the input of sediment derived from this source. For example, during the last three decades, a sustained construction program of bank revetments and dikes has produced a stable alignment. Given these trends in sediment supply from catchment, tributary and bank sources, it is not surprising that most studies of sediment movement report a large decrease in measured sediment loads at selected monitoring stations along the Mississippi River over the last 50 years (Kesel, 1988; Dardeau and Causey, 1990). However, a case can be made that the bed material load must have increased since the 1940s. This argument is based on analysis of morphological changes observed along the river that have led to an overall increase in slope and available stream power, coupled with the fact that bed material sizes along the river have remained almost constant.
Download or read book An Analysis of the Suspended Sediment Rating Curve Parameters in the Upper Mississippi River Basin at the Monthly and Annual Levels written by Vi Thi Tuong Tran and published by . This book was released on 2014 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Suspended sediment rating curve parameters were analyzed to investigate the relationship of suspended load and discharge in the Upper Mississippi River Basin (UMRB) at the annual and monthly levels. The rating curve parameters were obtained from the power function of load and discharge: Load = a × (Discharge)b̳ [(Discharge)^b]. The function was solved by ordinary least squares regression on its logarithmic form. The annual rating coefficient a and exponent b ranged from 0 to 0.25 (kg/s)(s/m3)b̳ [(kg/s)(s/m^3)^b] and from 0.91 to 4.27, respectively. The monthly rating coefficient a and exponent b ranged from 0 to 0.239 (kg/s)(s/m3)b̳ and from 0.09 to 3.72, respectively. The intercept ln(a) and slope b of the logarithmic graph of suspended load and discharge were negatively correlated. This correlation was stronger for rivers categorized as having high discharge (> 218 m3/s [m^3/s]). This study also showed negative correlations between the rating coefficient a and stream discharge at annual and monthly levels, indicating that in large rivers, the rating curve tends to have a smaller intercept and larger slope. Smaller values of a and b in winter compared to other seasons suggested a low supply of sediment into streams due to frozen ground and the inactive state of streams in transporting sediment during winter months. The dominant shape of annual sediment rating curves in the region was convex, suggesting a transport-limited system for sediment transport in the basin. The transport-limited system indicates the potential of a flow to entrain additional sediment (possibly of larger grain sizes) during high discharge due to its higher competence. The apparent contradiction between the transport-limited condition and the findings of Meade and Moody (2010) is attributed to different approaches to the issue (trend of mean suspended load over time versus sediment rating curve). The results of this thesis also suggested that the UMRB has remained transport-limited after the flood in 1993, although this merits further investigation.
Download or read book Suspended Sediment and Water Characteristics written by D. J. Ouellette and published by . This book was released on 1970 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are many variables affecting the nature and amounts of suspended material carried by the Mississippi River distributary known as South Pass. Currents, tides, winds, temperature, salinity, and river stages all contribute to the eventual dissemination and settling of suspended matter discharged into the Gulf of Mexico. Of all the facets that influence the amounts of suspended material, stages of the river must be of paramount importance. There can be no short cuts in attempts to observe and study the various phases. The experience gained by the study of one contributes somewhat to the knowledge of another. Understanding of the hydraulics and its relation to sediments at the distributary mouth is the summation of effects of the gulf and the river, as well as the elements. (Author).
Download or read book Technical Abstract Bulletin written by and published by . This book was released on 1982 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fluvial Sediment of the Mississippi River at St Louis Missouri written by Paul Robert Jordan and published by . This book was released on 1965 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
