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 19 of 19 for “"rainstorm"”.
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Regional characteristics of rainstorm durations and intensities
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1998.
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Seasonal and geographic variability in rainstorm parameter distributions
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1994.
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Measurement and validation of rainstorm parameters with the VPI radar
… (ZDR) measured during the November 29-30, 1985 rainstorm is compared with calculated ZDR and ZDR from published plots. The special hardware and calibration techniques required for this experiment are also described. An IBM-PC controlled antenna pointing system and a system to continuously …
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The effect of rainstorm movement on urban drainage network runoff hydrographs
… that surface runoff from a watershed due to a rainstorm varies with the hydro-meteorological characteristics of the rainfall and the physiographic properties of the watershed. The direct influence of rainfall movement on the shape of a runoff hydrograph has been known for a long time. However, …
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Experimental Investigation of the Effects of Rainstorm and Watershed Characteristics on Surface Runoff
Made available in DSpace on 2014-12-10T22:22:14Z (GMT). No. of bitstreams: 1 7500430.pdf: 5699023 bytes, checksum: 1f547ee1c8ac6b8027f209c2bdefff62 (MD5) Previous issue date: 1974
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PERCEPTIONS OF VULNERABILITY TO SEVERE’ WEATHER IN PANGNIRTUNG, NUNAVUT
… community of Pangnirtung, Nunavut experienced a rainstorm that caused extensive geological and structural damage. The local government characterized the event as 'severe’, however several residents pointed out the effects to the land and impacts to the community were at best exciting, and at …
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Factors influencing the behavior of hydrocarbons in stormwater runoff during quiescent settling
… were generated by simulation of a typical rainstorm. An area of pavement at a gasoline filling station was washed down with tapwater and the resultant runoff was collected and transported to the laboratory. Four large, clear Plexiglass cylinders were filled with well mixed bulk runoff and …
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Construction Site Sedimentary Pollution in a Watershed
… for relatively short periods, because they are rainstorm-related. Perhaps the most serious sedimentation problem is general deterioration of the total environment, a condition usually not recognized by the public. This research presents an analytical evaluation of five construction sites. The …
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String Quartet I
… Movement II, "Drops," represents a gentle rainstorm that rolls in, gradually at first, and over time gives way to a steady downpour. The pizzicato timbre is paired with a simple tonal theme in a back-and-forth dance with bowed 12-tone counterpoint. A long coda features harmonic parallelism …
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Granular activated carbon pretreatment for the removal of trihalomethane precursors
… populations in the raw water. Runoff from a rainstorm late in the period of study resulted in increases in raw water color, turbidity, and TOC concentrations, but it was impossible to determine which of these factors was responsible for the increased raw water THMFP that occurred at the same …
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Sizing the first flush and its effect on the storage-reliability-yield behavior of rainwater harvesting in Rwanda
… volume of water flowing from a roof after a rainstorm is known as the first flush and research has shown that diverting it from the main supply can improve the quality of stored water. This thesis considers a variety of design options for rainwater harvesting, set in the context of rural …
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Environmental dynamics of Benomyl and Thiabendazole
… river basin into the Meherrin river following a rainstorm, indicate that significant quantities of Benomyl and Thiabendazole could be transported into aquatic systems. Adsorption studies also indicated that the adsorption process is reversible. Thus, any significant increases in the pH of …
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Biogeochemical Consequences of Hydrologic Conditions in a Tropical Montane Rain Forest in Ecuador
… water increased immediately after an intense rainstorm event to isotope values similar to those of rainfall and lateral flow. This indicated that during elevated rainfall the water flows rapidly in the organic layers to the stream channel paralleling the surface. During this time the water …
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Time and process in sedimentary rocks at the dawn of animal life
… detrital zircon record of an Ediacaran unit, the Rainstorm Formation, and analyzes the role of grain size and sediment transport processes in generating bias in detrital mineral provenance records.
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Studies of mercury in water, sediment, and fish in Mississippi: Concentrations, speciation, cycling, and isotopic composition
… of total suspended solids and Hg following a rainstorm event will be shown. Finally, results from the first study of total-Hg, MeHg, and Hg isotopic composition in sediment from a cold seep from the northern Gulf of Mexico is discussed. Hg levels in the sediment from the cold seep were similar …
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Interactions between hydrology and biogeochemistry within riparian wetlands
… of the wetland's area. During intensive rainstorm events these surface flow networks, which contribute to stream discharge due to a fill and spill mechanism, dominate runoff generation. These fast flow components are characterized by very low residence times (minutes to hours) and once …
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Preferential movement of solutes through soils
… the solute leaching, 24 hours after a rainstorm, by 157% for a soil column with a macropore, and by 58% for a soil column without a macropore. These differences decreased to 47% and 8%, respectively, 168 hours after the rainfall. Field application of the model suggested that the model …
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Seasonal precipitation, river discharge, and sediment flux in the western Himalaya
… rainfall budget is attributed to monsoonal rainstorms, which show higher variability in the orogenic interior than in frontal regions. Combined analysis of rainstorms and sediment flux data of a major Sutlej River tributary indicate that monsoonal rainfall has a first order control on …
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Design and optimization of a waste rock cover system for arid environments
… the covers increased considerably under intense rainstorm events and then quickly decreased during subsequent evapotranspiration. Infiltration from the base of the covers into the underlying waste rock was less than 1 % of average annual precipitation during the three wet seasons. Calibration and …