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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 484 for “"Turbidity"”.
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Underwater turbidity measurements
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Geology and Geophysics, 1960.
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Quantifying turbidity current interactions with topography
… our understanding of how transport properties of turbidity currents are mediated by interactions with seafloor topography, specifically channelized surfaces. Turbidity currents are responsible for crafting the morphology of continental margins. Unfortunately, very few direct observations exists …
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3-D Numerical Modeling of Turbidity Currents
… deposition of sediment. Numerical modeling of turbidity currents can provide valuable insights into current dynamics including turbulence structures and their ef- fects on deposit thickness, grain size, and distribution pattern. Proper modeling of turbulence in these stratified flows is crucial …
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Experimental study of reservoir turbidity currents venting
… on a laboratory flume to analyze the behavior of turbidity currents while using the pass-through sediment management technique of venting. The main focus was to explore and develop a better understanding of the streamwise flow velocity and suspended sediment concentration vertical profiles, and …
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Effects of turbidity on the kelp Ecklonia radiata
Increasing turbidity poses a major yet often overlooked threat to coastal marine ecosystems. By reducing light available for key benthic primary producers, increasing turbidity has the capacity to restructure marine communities and adversely impact coastal primary production. An important step to …
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Turbidity current processes and deposits on the northwest African Margin
… sand body architecture is largely controlled by turbidity current volume. Small-volume turbidity currents deposit all of their sand around the mouth of the feeder canyon, whereas large-volume turbidity currents deposit extensive sheet sands across the basin floor. The large-volume, high …
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Improving Turbidity-Based Estimates of Suspended Sediment Concentrations and Loads
… quantify this transport becomes paramount. Turbidity is recognized as an effective tool for monitoring suspended sediments in aquatic systems, and with recent technological advances turbidity can be measured in-situ remotely, continuously, and at much finer temporal scales than was …
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Spectroscopy versus turbidity: non-invasive in vivo monitoring of living systems
<p>The overall aim is to advance the use of light for noninvasive monitoring of living systems generally defined. We first describe work used to test a methodology for real-time probing of chemical and physical changes in spinal cords in the immediate aftermath of a localized contusive injury by …
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Layer-averaged modeling of turbidity currents with a finite element method
… system of partial differential equations for a turbidity current flowing in deep ambient water. Since the standard Galerkin method yields spurious oscillations when applied to convection-dominated flows, the dissipative-Galerkin technique which has a selective damping property, is used. In order …
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A study of atmospheric turbidity through observations of Arago's neutral point
Thesis (B.S.) Massachusetts Institute of Technology. Dept. of Meteorology, 1952.
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Bedload Transport, Self Acceleration, Downstream Sorting, and Flow Dynamics of Turbidity Currents
The experiments reported here are performed in configuration to test the concept of an internal delta. Dissolved salt is used as a surrogate for the finer phase, and lightweight plastic particles are used as a surrogate for the coarser phase. The plastic particles are carried mostly as bedload. …
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Foraging of juvenile crappies in turbidity: the difference is black and white
Environmental conditions like turbidity can fluctuate rapidly during the early life of fishes and can impact foraging behaviors, and thus growth and survival. Black (Pomoxis nigromaculatus) and white (P. annularis) crappies have been hypothesized to respond strongly and distinctly to changes in …
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The Effect of Turbidity on the Distribution and Life History of River Zooplankton
… to differences in environmental factors, such as turbidity. The current study compared the species composition in the Illinois River and its associated wetlands, and used life table experiments to compare the fitness of two Daphnia species in response to turbidity and food levels. Over a three-day …
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Application of Polyacrylamide-based Floc Logs for Turbidity Control at Highway Construction Sites
… polyacrylamide (PAM) based Floc Logs, for turbidity control. Five commercially available types of PAM-based Floc Logs were evaluated in jar tests, using soil excavated from Cato Springs Research Center (CSRC, Fayetteville AR) and six types of clay from the Clay Minerals Society (Chantilly, …
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The Effect of Heat Upon The Turbidity and Absorption Spectra of Skim Milk
Made available in DSpace on 2014-12-05T23:07:59Z (GMT). No. of bitstreams: 1 6200665.pdf: 4398050 bytes, checksum: b5500f6edfa4ce217ea40db68d37102a (MD5) Previous issue date: 1961
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Biosand filtration of high turbidity water : modified filter design and safe filtrate storage
… most of these are suited for use with low turbidity source water. The treatment of high turbidity water (>50 NTU) is a challenge that was investigated in this research. Biosand filters, based on an intermittent slow sand filtration process, are an established household scale water treatment …
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Turbidity and Nutrient Response to Storm Events in the Wissahickon Creek, Suburban Philadelphia, PA
… Creek. The purpose of this research was to study turbidity and nutrient responses to storm events, as storm events are known to contribute significant loads of both sediment and nutrients. Twelve sites were chosen for high frequency turbidity and water level monitoring along the Wissahickon Creek …
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Predation, turbidity, and other factors influencing juvenile Salmonid survival in the lower Snake River
… river 's flow regimes, riparian vegetation, and turbidity. Further, several non-native fishes have been introduced as sport fish into the Lower Snake River. This combination of physical alterations and new biological interactions with introduced species has reduced the survival of anadromous …
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Ecological effects of turbidity variations in and around dredging areas in the Port of Tauranga
Turbidity is the scattering of light in water bodies and is an important measurement for assessing water quality in coastal systems. Suspended particles in the water column can greatly impact on light penetration and measured turbidity levels. These suspended particles can originate from a range of …
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