Monitoring and quantifying suspended sediment concentration (SSC) along major fluvial systems such as the Missouri Mississippi Rivers provide crucial information for biological processes, hydraulic infrastructure, navigation. Traditional monitoring based on in situ measurements lack spatial coverage necessary detailed analysis. This study developed a method SSC Landsat imagery corresponding data obtained from United States Geological Survey stations 1982 to present. The presented methodology...

Abstract The Middle Mississippi River (MMR) and lower Missouri (MOR) provide critical navigation waterways, ecological habitat, flood conveyance. They are also directly linked to processes affecting geomorphic conditions in the MR Delta. For this study, a method was developed measure suspended‐sediment concentration (SSC) turbidity along MMR MOR using Landsat imagery. Data from nine United States Geological Survey water‐quality monitoring stations were used create model‐development dataset...

Several reservoirs across the United States are filling with sediment, which jeopardizes their functionality and increases maintenance costs. USACE developed Reservoir Sedimentation Information (RSI) system to assess reservoir aggradation track dam operation suitability for water resource management safety. The RSI data set contains historical elevation-capacity approximately 400 dams (excluding navigation structures), correspond less than 1% of States. Thus, there is a critical need develop...

The objective of this paper is to present the initial illustration a cyberinfrastructure named River MORPhology Information System (RIMORPHIS) that addresses current limitations related river morphology data and tools. A new specification for semantics on datasets has been developed support web-based platform discovering visualization data. Several geoprocessing tools are enable scientific analysis practical studies, including coordinate transformation, cross-section generation bathymetry...

ABSTRACT: River morphology data are critical for understanding and studying river processes managing rivers multiple socio-economic uses. While such have been acquired extensively over time, several issues hinder their use studies as accessibility, variety of formats, lack models storage, processing tools to assemble the in products readily usable research, management, education. A multi-university research team has prototyped a web-based information system (RIMORPHIS) hosting creating new...

A new elliptical sharp-crested weir was developed to address discharge, pollution, and maintenance concerns associated with detention ponds. The specifically designed decrease the time cost clearing debris following storm events. 2∶1 Froude-scale physical model constructed stage-discharge data were collected analyze relationship of weir. total 45 steady-state tests conducted encompassing nine unique geometric configurations. ellipse ratio varied from 12 16, gap width 1.5 9.1 mm (0.005 0.030...

An elliptical sharp-crested weir design was developed for detention pond outlets to address discharge, pollution, and maintenance concerns. The designed in an effort efficiently pass debris through outlet as well having the ability easily remove any attached plate. Interactions between various types of materials were investigated using a 1:2 Froude-scale physical model. Stage discharge data collected quantify reduced hydraulic efficiencies with presence Nine tests conducted plastic bags,...

Bendway weirs are submerged, in-stream rock structures that redirect impinging flow away from outer-banks toward the center of a channel. Riprap composed stone and sized using average channel velocity in conjunction with existing design guidance. A physical model study field were conducted to determine magnitude convective accelerates around tip or toe weir. The ratio maximum (prior weir installation) was determined be approximately 1.70. Stone sizing criteria significantly increase riprap...

Abstract Sediment transport, erosion, and deposition are primary drivers of river geomorphic processes ecological services. Suspended‐sediment concentration (SSC) is an important parameter for evaluating these accordingly significant interest to engineers, scientists, water resource managers. The United States Geological Survey (USGS) previously operated nine daily SSC gauging stations along the Mississippi River, with operating dates ranging from 1974 2018. Currently, there no USGS...

The study and management of river systems are increasingly challenged by the complexity volume data required to understand predict morphology changes. River Morphology Information System (RIMORPHIS) is introduced as a transformative solution these challenges, serving an open-access web-based cyberinfrastructure designed enable advanced research in dynamics support integrated, multidisciplinary analysis riverine environments. Built upon robust framework National Hydrography Dataset Plus High...

A moment stability analysis method which computes a safety factor using shear stress and flow velocity was previously developed for assessing the of articulated concrete block (ACB) systems during overtopping flow. The present study used assessment (SVSA) to derive equations evaluating channelized excludes several assumptions in previous methods, including calculating rotation angle movement ratio boundary critical account all hydrodynamic forces. SVSA provide reliable approach ACB systems....

Sedimentation processes in reservoirs can jeopardize their functionality and compromise dam safety. Climate change associated hydrologic uncertainty are introducing additional stressors to US reservoirs, data-driven indicators of climate impacts on upstream soil erosion reservoir’s sedimentation crucial evaluate aggradation life expectancy. The Army Corps Engineers developed the Enhancing Reservoir Information for Preparedness Resilience (RSI) system consolidate historical...

Several reservoirs across the US are filling with sediment, which jeopardizes their functionality and increases maintenance costs. The Army Corps of Engineers (USACE) developed Reservoir Sedimentation Information (RSI) system to assess reservoir aggradation track dam operation suitability for water-resource management safety. RSI dataset contains historical elevation-capacity data approximately 400 dams (excluding navigation structures) correspond less than 1% US. Thus, there is a critical...

2011 annual AGU hydrology days was held at Colorado State University on March 21 - 23, 2011.