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Dissertations / Theses on the topic 'Stream temperature'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Richards, John. "Alpine proglacial stream temperature dynamics." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/5039.

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This study was motivated by an interest in understanding the effects of glacier retreat on late summer stream temperatures in an above-treeline proglacial stream and lake system in the southern Coast Mountains of British Columbia, Canada. Fieldwork was carried out during August and September of 2007 and focused on thermal processes controlling water temperature in the proglacial lake and a 1 km alpine reach directly downstream of the lake outlet. The proglacial lake was small (0.07 km²), featured a single inflow and outflow channel and had a residence time of approximately 4 days. The alpine r

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2

Buck, Christina Rene. "Managing Groundwater for Environmental Stream Temperature." Thesis, University of California, Davis, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3565483.

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<p> This research explores the benefits of conjunctively managed surface and groundwater resources in a volcanic aquifer system to reduce stream temperatures while valuing agricultural deliveries. The example problem involves advancing the understanding of flows, stream temperature, and groundwater dynamics in the Shasta Valley of Northern California. Three levels of interaction are explored from field data, to regional simulation, to regional management optimization. Stream temperature processes are explored using Distributed Temperature Sensing (DTS) data from the Shasta River and recalib

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3

Holthuijzen, Maike F. "A Comparison of Five Statistical Methods for Predicting Stream Temperature Across Stream Networks." DigitalCommons@USU, 2017. https://digitalcommons.usu.edu/etd/6535.

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The health of freshwater aquatic systems, particularly stream networks, is mainly influenced by water temperature, which controls biological processes and influences species distributions and aquatic biodiversity. Thermal regimes of rivers are likely to change in the future, due to climate change and other anthropogenic impacts, and our ability to predict stream temperatures will be critical in understanding distribution shifts of aquatic biota. Spatial statistical network models take into account spatial relationships but have drawbacks, including high computation times and data pre-processin

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4

Garner, Grace. "River and stream temperature in a changing climate." Thesis, University of Birmingham, 2014. http://etheses.bham.ac.uk//id/eprint/5418/.

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There is major concern that river temperature changes driven by a changing climate and associated hydrological changes will have profound impacts on freshwater ecosystems. To identify the rivers most sensitive to change and implement effective strategies to mitigate high thermal extremes, this thesis aims to improve understanding of the influences of hydrometeorology and riparian landuse on river temperature dynamics, controls and processes within a UK context. Four studies are presented within a multi-scale research design which aimed to improve understanding of: (1) spatial patterns and inte

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5

Leach, Jason A. "Stream temperature dynamics following riparian wildfire : effects of stream-subsurface interactions and standing dead trees." Thesis, University of British Columbia, 2008. http://hdl.handle.net/2429/1411.

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The primary objectives of this study were to address how stream temperature is influenced by (1) spatial variability in energy exchanges, (2) reach-scale stream-subsurface water interactions and (3) the net radiation dynamics associated with standing dead riparian vegetation. Stream temperature, riparian microclimate, and hydrology were characterized for a 1.5 km reach of Fishtrap Creek, located north of Kamloops, British Columbia. Within-reach air temperature and humidity variability was small, while wind speed, net radiation and surface-subsurface interactions exhibited considerable spatiall

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6

Hill, Ryan A. "Modeling USA stream temperatures for stream biodiversity and climate change assessments." Thesis, Utah State University, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=3587567.

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<p> Stream temperature (ST) is a primary determinant of individual stream species distributions and community composition. Moreover, thermal modifications associated with urbanization, agriculture, reservoirs, and climate change can significantly alter stream ecosystem structure and function. Despite its importance, we lack ST measurements for the vast majority of USA streams. To effectively manage these important systems, we need to understand how STs vary geographically, what the natural (reference) thermal condition of altered streams was, and how STs will respond to climate change. Empiric

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7

Su, Yibing. "Real-time prediction of stream water temperature for Iowa." Thesis, University of Iowa, 2017. https://ir.uiowa.edu/etd/5653.

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In the agricultural state of Iowa, water quality research is of great importance for monitoring and managing the health of aquatic systems. Among many water quality parameters, water temperature is a critical variable that governs the rates of chemical and biological processes which affect river health. The main objective of this thesis is to develop a real-time high resolution predictive stream temperature model for the entire state of Iowa. A statistical model based solely on the water-air temperature relationship was developed using logistic regression approach. With hourly High Resolution

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8

Lund, David Charles. "Gulf Stream temperature, salinity and transport during the last millennium /." Cambridge, Mass. : Woods Hole, Mass. : Massachusetts Institute of Technology ; Woods Hole Oceanographic Institution, 2006. http://hdl.handle.net/1912/1774.

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Originally issued as the author's thesis (Ph. D.)--Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 2006.<br>"February 2006". "Doctoral dissertation." "Department of origin: Geology and Geophysics." "Joint Program in Oceanography/Applied Ocean Science and Engineering"--Cover. Includes bibliographical references.

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9

Lund, David Charles. "Gulf stream temperature, salinity and transport during the last millennium." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/34567.

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Thesis (Ph. D.)--Joint Program in Oceanography (Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), February 2006.<br>Includes bibliographical references.<br>Benthic and planktonic foraminiferal [delta]18O ([delta 18Oc) from a suite of well-dated, high-resolution cores spanning the depth and width of the Straits of Florida reveal significant changes in Gulf Stream cross-current density gradient during the last millennium. These data imply that Gulf Stream transport during the Little Ice Age (LIA: 1200-1850 A

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Makarowski, Kathryn Elizabeth. "An investigation of spatial and temporal variability in several of Montana's reference streams working toward a more holistic management strategy /." Diss., [Missoula, Mont.] : The University of Montana, 2009. http://etd.lib.umt.edu/theses/available/etd-08252009-120501.

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11

Amoruso, Kenneth. "Independent control of a molten stream temperature and mass flow rate." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/40008.

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12

Watz, Johan. "Winter behaviour of stream salmonids: effects of temperature, light, and ice cover." Licentiate thesis, Karlstads universitet, Institutionen för miljö- och livsvetenskaper, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-26809.

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In boreal streams, stream salmonids typically face low water temperatures and variable ice conditions during winter, and thus stream salmonids are expected to use different behavioural strategies to cope with these environmental conditions. The studies presented in this thesis explore how temperature, light intensity, and surface ice affect salmonid behaviour, with focus on drift-feeding and ventilation rates. The first paper reports results from a laboratory study designed to measure prey capture probabilities and reaction distances of drift-feeding Atlantic salmon, brown trout, and European

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13

Leach, Jason Andrew. "Winter stream temperature in the rain-on-snow zone of the Pacific Northwest." Thesis, University of British Columbia, 2014. http://hdl.handle.net/2429/51261.

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Stream temperature dynamics during winter are less well studied than summer thermal regimes, but the winter season thermal regime can be critical for fish growth and development. The winter thermal regimes of Pacific Northwest headwater streams, which provide vital winter habitat for salmonids and their food sources, may be particularly sensitive to changes in climate because they can remain ice-free throughout the year and are often located in rain-on-snow zones. This study examined winter stream temperature patterns and controls in small headwater catchments within the rain-on-snow zone at t

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14

Tyrrell, Jennie L. "The effect of water temperature on in-stream sediment concentration and transport rate." Thesis, Michigan Technological University, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10004794.

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<p> Global climate change may result in rising temperatures. As a result, ecological health and the human use of rivers may be impacted. The hydrologic cycle, watershed hydrology, and in-stream hydraulics are dynamic systems, influenced by human activities, natural events, and climate. Although known drivers like precipitation and stream velocity govern sediment processes, the effect of water temperature on sediment transport remains unclear. In-stream sediment movement could lead to blocked harbors, flooding, and degradation of vulnerable fish habitat. To better understand how fluctuations in

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15

Garrett, Jessica D. "Pervasive Thermal Consequences of Stream-Lake Interactions in Small Rocky Mountain Watersheds, USA." DigitalCommons@USU, 2010. https://digitalcommons.usu.edu/etd/841.

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Limnologists and stream ecologists acknowledge the fundamental importance of temperature for regulating many ecological, biological, chemical, and physical processes. I investigated how water temperatures were affected by hydrologic linkages between streams and lakes at various positions along surface water networks throughout several headwater basins in the Sawtooth and White Cloud Mountains of Idaho (USA). Temperatures of streams and lakes were measured for up to 27 months in seven 6 – 41 km2 watersheds, with a range of lake influence. When they were ice-free, warming in lakes resulted in dr

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16

Willard, Eric Hillman Tharsing. "Temperature and relative humidity gradients of intermittent and perennial tributaries in Northern California." [Chico, Calif. : California State University, Chico], 2009. http://hdl.handle.net/10211.4/108.

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Snow, Camilla J. "Impact of Beaver Ponds on Stream Temperature and on Solar Radiation Penetration in Water." DigitalCommons@USU, 2014. https://digitalcommons.usu.edu/etd/3858.

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Beaver dams alter streams characteristics in a way that promotes the diversity of aquatic species and provides a wide distribution of temperatures within beaver ponds. In order to quantify the spatial distribution of these temperatures, a process-based temperature model was developed for a beaver pond in Northern Utah. This model provided insight into the processes and characteristics that are driving these temperatures. Solar radiation is one of these processes that is often the primary driver of stream temperature. There is a need to develop methods to measure the fate of solar radiation wit

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18

Mouzon, Nathaniel R. "Effects of Environmental Water Rights Purchases on Dissolved Oxygen, Stream Temperature, and Fish Habitat." DigitalCommons@USU, 2016. https://digitalcommons.usu.edu/etd/4986.

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Human impacts from land and water development have degraded water quality and altered the physical, chemical, and biological integrity of Nevada's Walker River. Reduced instream flows and increased nutrient concentrations affect native fish populations through warm daily stream temperatures and low nightly dissolved oxygen concentrations. Environmental water purchases are being considered to maintain instream flows, improve water quality, and enhance habitat for native fish species, such as Lahontan cutthroat trout. This study uses the River Modeling System (RMSv4), an hourly, physically-based

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Watson, Eric Craig. "Use of Distance Weighted Metrics to Investigate Landscape-Stream Temperature Relationships Across Different Temporal Scales." PDXScholar, 2016. http://pdxscholar.library.pdx.edu/open_access_etds/3117.

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Stream ecosystems have experienced significant negative impacts from land use, resource exploitation, and urban development. Statistical models allow researchers to explore the relationships between these landscape variables and stream conditions. Weighting the relevant landscape variables based on hydrologically defined distances offers a potential method of increasing the predictive capacity of statistical models. Using observations from three grouped watersheds in the Portland Metro Area (n=66), I have explored the use of three different weighting schemes against the standard method of taki

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Kozarek, Jessica Lindberg. "Channel Morphology and Riparian Vegetation Influences on Fluvial Aquatic Habitat." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/77172.

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As public awareness of river degradation has grown in recent years, the number of stream restoration activities has increased dramatically. Anthropogenic influences at a range of spatial scales from watershed landuse to riparian vegetation management to local channel morphology can have hierarchical relationships to local (meso- and macro-) in-stream habitat characteristics. This research examined these influences first by examining the influence of complex channel morphology on meso-scale brook trout (Salvelinus fontinalis) habitat in Shenandoah National Park, VA, and then by examining the co

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Fabris, Luca. "Influence of hydrology, hydraulics and temperature on Atlantic salmon habitat : modelling-based approaches for sustainable river management." Thesis, University of Aberdeen, 2018. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=239262.

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In this thesis, we improved our understanding of the effects of hydrology, stream hydraulics, and temperature on juvenile Atlantic salmon (Salmo salar L.) habitat. We demonstrated the key role played by stream morphology and flow regime on in-channel hydraulics and consequently on salmonid habitat. Additionally, we showed how riparian afforestation has potential to moderate climate change effects on stream temperature preserving freshwater ecosystems. The Girnock Burn is an upland Scottish river that has been intensively studied to investigate flow generation processes and stream temperature,

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22

Krause, Colin William. "Evaluation and Use of Stream Temperature Prediction Models for Instream Flow and Fish Habitat Management." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/31229.

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The SNTEMP (U.S. Fish and Wildlife Service), QUAL2E (U.S. Environmental Protection Agency), and RQUAL (Tennessee Valley Authority) stream temperature prediction models were evaluated. All models had high predictive ability with the majority of predictions, >80% for Back Creek (Roanoke County, VA) and >90% for the Smith River tailwater (SRT) (Patrick County, VA), within 3Â°C of the measured water temperature. Sensitivity of model input parameters was found to differ between model, stream system, and season. The most sensitive of assessed parameters, dependent on model and stream, were latera

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23

Ridgeway, Julia B. "An analysis of changes in stream temperature due to forest harvest practices using DHSVM-RBM." DigitalCommons@CalPoly, 2019. https://digitalcommons.calpoly.edu/theses/2093.

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Forest harvesting has been shown to cause various changes in water quantity and water quality parameters, highlighting the need for comprehensive forest practice rules. Studies show a myriad of impacts to ecosystems as a result of watershed level changes, such as forest harvesting. Being able to better understand the impact that forest harvesting can have on stream temperature is especially critical in locations where federally threatened or endangered fish species are located. The overall goal of this research project is to assess responses in stream temperature to various riparian and forest

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Harper-Smith, Sarah. "Modeling relative effects of riparian cover and groundwater inflow on stream temperature in lowland Whatcom County, Washington /." Online version, 2008. http://content.wwu.edu/cdm4/item_viewer.php?CISOROOT=/theses&CISOPTR=288&CISOBOX=1&REC=6.

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Berg, Ivan. "Headwaters and forestry : Effect of riparian buffers on stream physiochemical properties." Thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-163017.

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Forest management practices usually preserves riparian buffers along watercourses in order to protect stream water from physical, chemical and ecological changes caused by clear-cutting. The purpose of this thesis was to investigate whether there is a relationship between the size of the riparian buffer zone along small streams, i.e., headwaters, and a number of physical and chemical attributes of these streams. Twelve headwaters in the Västerbotten county and twelve in Jönköpings county were investigated. These headwaters had a range of buffer widths from “No buffer” (no trees left), Thin buf

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Li, Han. "Statistical Modeling and Analysis of Bivariate Spatial-Temporal Data with the Application to Stream Temperature Study." Diss., Virginia Tech, 2014. http://hdl.handle.net/10919/70862.

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Water temperature is a critical factor for the quality and biological condition of streams. Among various factors affecting stream water temperature, air temperature is one of the most important factors related to water temperature. To appropriately quantify the relationship between water and air temperatures over a large geographic region, it is important to accommodate the spatial and temporal information of the steam temperature. In this dissertation, I devote effort to several statistical modeling techniques for analyzing bivariate spatial-temporal data in a stream temperature study. I

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Garner, Christopher B. "Modeling the effect of riparian shading on water temperature for portions of the Carson River, western Nevada, USA." abstract and full text PDF (free order & download UNR users only), 2007. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1442841.

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Wood, Jessica R. "Stream Temperature Monitoring and Modeling to Inform Restoration: A Study of Thermal Variability in the Western US." DigitalCommons@USU, 2017. https://digitalcommons.usu.edu/etd/6898.

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Water temperature is an important variable for aquatic ecosystems. Salmonid population numbers and distribution are heavily influenced by stream temperature, and there is growing concern about the health of salmonid populations with anticipated climate change. Managers are looking to efficiently evaluate options to maintain stream temperatures needed by salmonids. This study evaluated and compared stream temperature restoration alternatives in two streams with warm temperatures using stream temperature monitoring and modeling. The first study identified pockets of cold water that are important

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Jones, Leslie Anne. "Using a spatially explicit stream temperature model to assess potential effects of climate warming on bull trout habitats." Thesis, Montana State University, 2012. http://etd.lib.montana.edu/etd/2012/jones/JonesL0512.pdf.

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As the Flathead River Basin (FRB) undergoes change caused by a warming climate, scientific studies evaluating habitats and species most susceptible to the impacts of climate change will become increasingly important. Here, we seek to identify biologically meaningful physiological thresholds of bull trout in the FRB by modeling stream temperature and using the model as a tool to predict thermal changes caused by a warming climate. Specifically, we developed a spatially explicit stream temperature model to quantify and explore the potential range of thermal warming effects, using the case study

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Collis, Lyndsie Michele. "Does nutrient availability mediate the temperature dependence of gross primary production?: An evaluation using side-stream experimental channels." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1534507613269229.

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31

Vonada, Whitney. "Assessing Spatiotemporal Stream Temperature Trends and Drivers through Integrated Longitudinal Thermal Profiling and Stationary Data Logger Methodology on the Upper Chehalis River, WA." PDXScholar, 2018. https://pdxscholar.library.pdx.edu/open_access_etds/4560.

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This study encompasses 25 kilometers of the Chehalis River in Washington, USA that currently has sections under a Total Maximum Daily Load (TMDL) plan for stream temperature impairments that exceed 18°C, a regulatory standard set at the time of the listing to protect salmonid spawning, rearing, and migration. Using information integrated from stationary data loggers (n=22) that collected stream temperature information from August 4-September 10, 2017, and longitudinal thermal profiling performed on July 29-30, August 4-5, and September 9-10, 2017, this study aimed to quantify the spatial distr

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Jian, Jun. "Predictability of Current and Future Multi-River discharges: Ganges, Brahmaputra, Yangtze, Blue Nile, and Murray-Darling Rivers." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19777.

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Thesis (Ph.D)--Earth and Atmospheric Sciences, Georgia Institute of Technology, 2008.<br>Committee Chair: Judith Curry; Committee Chair: Peter J Webster; Committee Member: Marc Stieglitz; Committee Member: Robert Black; Committee Member: Rong Fu.

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Gaona, Garcia Jaime. "Groundwater-stream water interactions: point and distributed measurements and innovative upscaling technologies." Doctoral thesis, Università degli studi di Trento, 2019. http://hdl.handle.net/11572/242544.

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The need to consider groundwater and surface water as a single resource has fostered the interest of the scientific community on the interactions between surface water and groundwater. The region below and alongside rivers where surface hydrology and subsurface hydrology concur is the hyporheic zone. This is the region where water exchange determines many biogeochemical and ecological processes of great impact on the functioning of rivers. However, the complex processes taking place in the hyporheic zone require a multidisciplinary approach. The combination of innovative point and distribut

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Ketley, Zoma Anne. "Stream invertebrates and water temperature : evaluating thermal tolerances in the Cape floristic region (South Africa) - implications of climate change." Master's thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/8973.

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Includes bibliographical references.<br>Temperature is an important environmental variable for aquatic invertebrates as it affects their development, reproduction and survival. Temperature also affects the abundance and distribution of individuals in a stream or river. Stream temperatures are affected by human impacts which include not only impacts such as pollution, abstraction of water and the removal of riparian vegetation, but also the affects of climate change. In the Western Cape Province, South Africa, it is predicted that air temperatures will increase and winter rainfall will decrease

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Vance, Linda Katherine. "Stream temperature dynamics and impacts on the distribution of salmonid fishes in the Garcia River Watershed, Mendocino County, California /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2004. http://uclibs.org/PID/11984.

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Gaona, Garcia Jaime. "Groundwater-stream water interactions: point and distributed measurements and innovative upscaling technologies." Doctoral thesis, Università degli studi di Trento, 2019. http://hdl.handle.net/11572/242544.

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The need to consider groundwater and surface water as a single resource has fostered the interest of the scientific community on the interactions between surface water and groundwater. The region below and alongside rivers where surface hydrology and subsurface hydrology concur is the hyporheic zone. This is the region where water exchange determines many biogeochemical and ecological processes of great impact on the functioning of rivers. However, the complex processes taking place in the hyporheic zone require a multidisciplinary approach. The combination of innovative point and distribut

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37

Callahan, Michael Kroh. "Groundwater Controls on Physical and Chemical Processes in Streamside Wetlands and Headwater Streams in the Kenai Peninsula, Alaska." Scholar Commons, 2014. https://scholarcommons.usf.edu/etd/5347.

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For this dissertation I studied groundwater and surface water interactions in the Kenai Lowlands, Alaska. In particular, I examine two important aspects of groundwater and surface water interactions: 1) Groundwater's influence on surface-water temperature; and 2) Groundwater's role in forming hydrologic flow paths that can connect uplands to streamside wetlands and streams. Chapter 2 investigates the controls on stream temperature in salmon-bearing headwater streams in two common hydrogeologic settings: 1) drainage-ways, which are low-gradient streams that flow through broad valleys; and 2) di

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Sauze, Martin J. "An investigation using empirical orthogonal functions and objective analysis to analyze the vertical temperature structure of a Gulf Stream meander." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 1993. http://handle.dtic.mil/100.2/ADA265116.

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Hill, Andrew C. "Assessing Linkages Among Landscape Characteristics, Stream Habitat, and Macroinvertebrate Communities in the Idaho Batholith Ecoregion." DigitalCommons@USU, 2010. https://digitalcommons.usu.edu/etd/774.

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Understanding the composition of lotic communities and the landscape processes and habitat characteristics that shape them is one of the main challenges confronting stream ecologists. In order to better understand the linkages among landscape processes, stream habitat, and biological communities and to understand how accurately our measurements represent important factors influencing biological communities, it is important to test explicit hypotheses regarding these linkages. Increasing our understanding of aquatic communities in a hierarchical context and recognizing how well our measuremen

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Ensor, Breanne Leigh. "Spatial and Temporal Trends in Greenhouse Gas Fluxes from a Temperate Floodplain along a Stream-Riparian-Upland Gradient." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/71424.

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Increased floodplain and wetland restoration activity has raised concerns about potential impacts on the release of greenhouse gases (GHGs) to the atmosphere due to restored connectivity between aquatic and terrestrial ecosystems. Research has shown GHG fluxes from hydrologically active landscapes such as floodplains and wetlands vary spatially and temporally in response to primary controls including soil moisture, soil temperature, and available nutrients. In this study, we performed a semimonthly sampling campaign measuring GHG (CO2, CH4, and N2O) fluxes from six locations within a third-ord

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Brenneman, Emma Lee. "Hydrologic Trends and Spatial Relationships of Stream Temperature and Discharge in Urbanizing Watersheds in the Portland Metropolitan Area of the Pacific Northwest." PDXScholar, 2019. https://pdxscholar.library.pdx.edu/open_access_etds/5128.

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This study explores various relationships of streamflow and stream temperature over the Portland Metropolitan area in two urbanizing watersheds. Four stream temperature and discharge metrics were derived from USGS stream gauges in the Tualatin River and Johnson Creek watersheds and were analyzed for monotonic trends. Additionally, this study explored the sensitivity of stream temperature to air temperature and streamflow to assess where locations throughout the watershed may be more sensitive to these changes. Relationships among stream temperature, air temperature, and streamflow were assesse

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Akinola, Akinrotimi Idowu. "Temporal and Thermal Effects on Fluvial Erosion of Cohesive Streambank Soils." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/96768.

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In the United States, the annual cost of on-site soil erosion problems such as soil and nutrient losses, and off-site soil erosion problems such as sedimentation of lakes and river, loss of navigable waterways, flooding and water quality impairment, has been estimated at 44 billion USD (Pimentel, 1995; Telles, 2011). While eroding sediment sources can either be from land or from stream/river systems, the erosion from streambanks can be quite significant, reaching up to 80% of sediment leaving a watershed (Simon et al 2002; Simon and Rinaldi 2006). Despite many decades of research one the erosi

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Ahmed, Ashfaq. "Simulation of subsea production pipeline stream to evaluate and address the flow assurance issues of waxy crude oil." Thesis, Curtin University, 2009. http://hdl.handle.net/20.500.11937/1030.

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The modern world is heavily dependent on crude oil and its associated products and the petroleum industry has taken responsibility to meet the rising consumer demand. Oil and gas production can be broadly subdivided into three separate fields of science and technology, notably production processes in the reservoir, production of oil and gas from the wells and finally surface gathering, separation and transportation.This research focused on the problem that oil producers usually face with waxy crude oil during its production, processing and transportation. Wax build up, especially in the crude

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Witter, Jason Daniel. "A Two Part Thesis: Diurnal Soil Temperature Effects Within the GLOBE® Program Dataset and Pharmaceutical Compounds in the Wastewater Process Stream in Northwest Ohio." University of Toledo / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1208865262.

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Cole, Brian D. "Transient performance of parallel-flow and cross-flow direct transfer type heat exchangers with a step temperature change on the minimum capacity rate fluid stream. /." Online version of thesis, 1995. http://hdl.handle.net/1850/11924.

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Jian, Jun. "Relationship between the Pacific Ocean SST Variability and the Ganges-Brahmaputra River Discharge." Thesis, Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/6994.

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A simple correlation analysis was used to investigate the linear relationships between sea surface temperature (SST) and monthly flow of Ganges and Brahmaputra at the borders of Bangladesh and India using approximately 50 years of river discharge data. Strong correlations were found between the equatorial Pacific SST and boreal summer Ganges discharge from three-month lag to two-month lead times. The El Nio-Southern Oscillation (ENSO) explains Ganges flow variance exceeding 0.95 significance level using both the Nino 3.4 SST correlation and the composites made for El Nio (La Nina) periods. T

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Watz, Johan. "Salmonid behaviour under winter conditions." Doctoral thesis, Karlstads universitet, Institutionen för miljö- och livsvetenskaper, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-38354.

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Winter conditions are believed to play an important role in the population dynamics of northern temperate stream fish, challenging the ability of fish to physiologically and behaviourally adapt. Climate change is predicted to increase both mean temperature and temperature fluctuations, especially during winter, leading to dynamic environmental conditions in terms of river ice production and flow. Therefore, knowledge about the winter ecology of stream fish is important for predicting and mitigating anthropogenic impacts on fish production in boreal streams. Stream salmonids are relatively acti

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Larnier, Kévin. "Modélisation thermohydraulique d’un tronçon de Garonne en lien avec l’habitat piscicole : approches statistique et déterministe." Thesis, Toulouse, INPT, 2010. http://www.theses.fr/2010INPT0079/document.

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Les espèces de poissons migrateurs (saumon atlantique, Salmo salar, en particulier) requièrent des conditions thermiques bien spécifiques. Ils sont très sensibles aux températures de l’eau et aux fortes variations estivales. Sur les trente dernières années, l’étude menée sur la Garonne (France) révèle une augmentation des températures estivales associée à un allongement de la durée des périodes chaudes. L’impact de cette modification du régime thermique sur la survie et la reproduction des espèces migratoires est également mis en évidence. Cette étude est menée sur un tronçon de Garonne, situé

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Mainville, Daniel Mark, and daniel mainville@dse vic gov au. "The Impacts of Agriculture and Plantation Forestry in a Selection of Upper Catchments of the Strzelecki Ranges, Victoria." RMIT University. Civil, Environmental and Chemical Engineering, 2007. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20080509.162820.

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The intensive nature of land uses in the Strzelecki Ranges poses significant threats to landscape values and water quality. A comprehensive catchment strategy was developed based on sustainability science concepts incorporating the careful management of landscape values, proper land management approaches, and government policy and legislative change to ensure that agriculture, forestry and other land uses become sustainable in this sensitive environment. The readily measurable water quality indicators of turbidity, flow, electrical conductivity, and water temperature were used to determi

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Elmore, Logan. "Effects of Environmental Water Transfers on Stream Temperatures." DigitalCommons@USU, 2015. https://digitalcommons.usu.edu/etd/4368.

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Low streamflows and warm stream temperatures, caused mainly from agricultural diversions, currently limit available habitat and productivity of trout, including native Lahontan cutthroat trout in Nevada’s Walker River Basin. Environmental water purchases, which transfer water from willing sellers to instream uses (i.e for fish), are being evaluated to improve instream habitat. To determine which environmental water purchases to prioritize, this study was undertaken to build a computer model in order to simulate stream temperatures under differing environmental water transfer scenarios. Model r

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