Global ETD Search
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 15 of 15 for “"Diurnal Fluctuations"”.
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Modeling the stream temperature regime of the East Fork of the Virgin River in Zion National Park
… Virgin River at Virgin River Mile (VRM) 157.3. Diurnal fluctuations in the stream temperature of 10°C were common. The average maximum, mean, and minimum stream temperatures for the study period were 26.7°C, 21.8°C, and 17.0°C, respectively during which the average flow was 1076 l/s. A second …
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A multifaceted analysis of diurnal streamflow patterns through the application of advanced analytical tools
… of the historical and current literature on diurnal fluctuations in groundwater. The review touched upon several different aspects of the phenomenon, ranging from discussing the mechanisms of the origin of these signals, their role in the catchment's water balance, their link with groundwater …
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Wind power statistics in Britain, and their consequences for the integration of wind generation into electricity grids
… for lead times of a few hours are dominated by diurnal fluctuations in wind speed. These in turn are highly variable in both magnitude and sign, depending on among other things measurement height. The dominance of diurnal fluctuations can be seen more clearly in the coherence function plots for …
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Application of Wavelet Analysis for Examining Climate and Meltwater Runoff in the Paakitsoq Region, West Greenland
… is overlaid by shorter trends as well as diurnal fluctuations and even shorter one-off discharge and acceleration peaks. This project aims to investigate the relationship between net shortwave radiation, air temperature and proglacial discharge using wavelet analysis in order to establish …
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Design and control of equalization tanks.
… in such a manner that it reduces, optimally, diurnal fluctuations in both influent flow and load rates. The influent to a wastewater treatment plant generally exhibits wide diurnal variations in both flow rate and concentration, and consequently in load rate (defined as the product of flow …
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Hydrologic Response Caused by Wetland Expansion at Huntley Meadows Park in Hybla Valley, Virginia
… groundwater flow. However, observations of diurnal fluctuations of the water table at monitoring wells located in emergent and forested/shrub wetlands revealed that spatial variations in actual evapotranspiration (AET) rates strongly influence the distribution of water throughout the park. …
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The effects of temperature and moisture on alpine microbial processes across a gradient of soil development
… in the field, with some soils experiencing great diurnal fluctuations, while others remained consistently cold. The response of microbial community size, structure, activity and behavior to warming and changing soil moisture was addressed with laboratory incubations. Microbial community size and …
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FACTORS INFLUENCING A PETAL-BASED FORECASTING SYSTEM FOR SCLEROTINIA STEM ROT OF CANOLA
… of sclerotinia stem rot: canopy density; diurnal and other weather mediated fluctuations in petal infestation; and long-term changes in infestation during flowering. Disease incidence was significantly related to canopy density,as indicated by percentage light penetration through the …
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Fuel moisture and fuel dynamics in woodland and heathland vegetation of the Sydney Basin
… fire management, were measured in the field for diurnal fluctuations in FFM following rain, under conditions similar to when prescribed burns are conducted. The FFM components of current operational fire behaviour models were found to be inadequate for predictions of FFM and fire behaviour under …
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Estimating Evapotranspiration of a Riparian Forest Using Sap Flow Measurements
… with thermal dissipation probes. In addition to diurnal fluctuations, sap flow data collected hitherto also showed expected seasonal variation with summer maxima and winter minima, with transition fall and spring periods. Sap flow measurements from the study area were used to estimate riparian …
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Climatic drivers of retrogressive thaw slump activity and resulting sediment and carbon release to the nearshore zone of Herschel Island, Yukon Territory, Canada
… and air temperature were the main drivers for diurnal and inter-diurnal fluctuations. In July (2013), the retrogressive thaw slump released about 25 000 m³ of sediment-meltwater, containing 225 kg dissolved organic carbon and 2050 t of sediment, which in turn included 33 t organic carbon, and 4 …
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Dynamics of soybean leaf hydraulic conductance and diurnal soybean transcriptome analysis
… conditions and the dynamics of Kleaf on diurnal and season-long time scales. The acclimation of soybean Kleaf to growth at elevated [CO2], elevated temperature, and drought were examined in growth chamber studies and with field-grown soybean at the SoyFACE site in Champaign, IL. Because …
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Ecological role of mining ponds in Southern Coastal Mines, Namibia
… closely approach physical conditions in the sea. Diurnal fluctuations in oxygen concentration took place, but oxygen levels never dropped below 80% and were thus not limiting. After about 15 years, ponds developed salinities in excess of 80‰, which is likely to set limits on their ecological …