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 20 of 55 for “"Rain Events"”.
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A GPS-IPW Based Methodology for Forecasting Heavy Rain Events
… in the GPS signals serves as a precursor for rain events with a lead-time of 30 minutes to 2 hours. The methodology proposed herein takes advantage of this lead-time as the trigger to initiate alert related calculations. It is shown here that the sum of the rates of change of total cloud …
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Fast Algorithm for Modeling of Rain Events in Weather Radar Imagery
… In particular, tracking of precipitation events is useful for both forecasting and classification of rain/non-rain events since non-rain events usually appear to be static compared to rain events. Recent weather radar imaging-based forecasting approaches [3] consider that precipitation …
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The Varying Effects of Climate And Landscape Changes on Increased River Flows In Minnesota Watersheds
… extent of corn/soybean cropping and artificial drainage. Currently, the relative contributions of these factors to increased flows are not well understood. There is also some indication that intense rain events have increased across this region and may coincide with increased flood events. …
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EFFECTIVENESS OF STRAW BALE CHECK DAMS AT REDUCING POST-FIRE SEDIMENT YIELDS FROM EPHEMERAL CHANNEL CATCHMENTS
… catchment sediment yields produced by 30-minute rainfall intensities (I30) equal to or less than 14 mm hr-1 (0.5 in hr-1), a 1-year return period event at the study area. The straw bale check dams were filled to sediment holding capacity early in the first post-fire year from sediment yields …
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EFFECTIVENESS OF STRAW BALE CHECK DAMS AT REDUCING POST-FIRE SEDIMENT YIELDS FROM EPHEMERAL CHANNEL CATCHMENTS
… catchment sediment yields produced by 30-minute rainfall intensities (I30) equal to or less than 14 mm hr-1 (0.5 in hr-1), a 1-year return period event at the study area. The straw bale check dams were filled to sediment holding capacity early in the first post-fire year from sediment yields …
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Expected impacts of climate change on water and wastewater treatment in the Eastern Ontario region
… cycle. The intensity of extreme precipitation events and droughts is expected to increase, creating stress on the water and wastewater infrastructure. The objective of this study is to assess the potential impacts of climate change on the existing water and wastewater treatment infrastructure …
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Quantifying the Potential for Non-Point Source Pollution in Model Urban Landscapes
… for non-point source pollution. Ambient rainfall volumes were manipulated to provide 50%, 100%, and 150% of natural precipitation to plots with landscape covers of bare soil, shredded wood mulch, turfgrass, and simulated urban forest (complete pin oak canopy with shredded hardwood leaf …
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Analysis of parabolic through collector cleaning system under adaptive scheduling policy
… the effects of stochastic dust accumulations and rain events on the cleaning schedule of the parabolic trough collectors that are used to generate power at concentrated solar power (CSP) plants. The level of cleanliness is proportional to the power produced, and thus it affects the economic pay …
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Effectiveness of water quality benefits provided by stormwater management facilities/infiltration basin
… water samples were collected during three rain events and TSS measurements were compared with the inflow. In addition, part of the samples also had Total Phosphate (TP) and Total Nitrogen (TN) measured to verify compliance with their respective expected reduction. Results from this study …
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Analisi degli aspetti di qualità nella gestione dei sistemi di drenaggio urbano attraverso modellazione numerica e indagini di campo
… treat these polluted flows. In particular during rain events, river water quality is affected by CSOs activation. Built in order to protect the sewer system and the WWTP by increased flows due to heavy rains, CSOs divert excess flows to the receiving water body. On the basis of several scientific …
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High Impact Weather Associated with a Predecessor Rain Event Over Misawa Air Base
Two significant rain events of greater than 100 mm 24 h-1 occurred over Japan in direct association with tropical moisture transport from Typhoon (TY) Roke in September 2011. The first event occurred over Misawa Air Base, Japan during 1719 September 2011. Based on analysis of satellite imagery and …
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Sequential sampling and analysis of precipitation in the Shenandoah Valley
… and operation of a developmental sequential rain sampler in the Shenandoah Valley. It also reports the results obtained from the rainwater analysis precipitation at and this the determination rural site is of whether the acidic or not. Rainwater collection was conducted sequentially and on an …
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Using Geophysics and Terrestrial LiDAR to Assess Stormwater Parameters in Vacant Lots in Philadelphia
… exhibited depression storage and runoff during rain events. Less compacted areas off campus had higher infiltration rates and exhibited no depression storage or runoff. The results of this study showed variance in surface compaction caused grassy areas around Temple’s campus respond differently …
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Optoelectronic Multifractal Wavelet Analysis for Fast and Accurate Detection of Rainfall in Weather Radar Images
… weather radar signals and accurate detection of rainfall. The process employs multifractal analysis using directional Gabor wavelets for accurate detection of the rain events. An optoelectronic joint transform correlator is proposed to provide ultra fast processing and wavelet analysis. Computer …
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Survey of Storm Water Quality in an Urban Environment
… metals. Samples were collected during ten rain events between the months of October 2011 to May 2012. Water quality analysis of the collected storm water samples testing results showed highly variable contaminant loading between basin types and between seasons. As a general trend, roadway …
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CHANGES IN FIRE SEASON PRECIPITATION IN IDAHO AND MONTANA FROM 1982-2006
… trends were investigated using daily rainfall data obtained from seventy-six Remote Automated Weather Stations (RAWS) across Idaho and Montana for the period 1982 to 2006. Missing and erroneous values from each station were corrected with gridded data from the North American Regional …
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CHANGES IN FIRE SEASON PRECIPITATION IN IDAHO AND MONTANA FROM 1982-2006
… trends were investigated using daily rainfall data obtained from seventy-six Remote Automated Weather Stations (RAWS) across Idaho and Montana for the period 1982 to 2006. Missing and erroneous values from each station were corrected with gridded data from the North American Regional …
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Groundwater transport of Escherichia coli bacteria to open surface waters on Virginia's Coastal Plain: a GIS approach
… levels. Subsets of the data consisting of heavy rain events, low tide and high tide were analyzed which had geometric mean bacteria MPN concentrations of 16.1 fecal coliforms (FC) / 100 mL, 9.4 FC / 100 mL, and 6.9 FC / 100 mL respectively compared to an overall geometric mean of 7.8 FC / 100 mL. …
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Microbial Source Tracking of Bacteroides to Identify Human and Bovine Fecal Loading in McDaniel Lake
Fecal waste enters waterways from run-off during rain events, and is especially high in agricultural areas due to manure application and livestock. Increased fecal waste may also be due to direct human influence. This fecal loading may lead to eutrophication and poses health hazards to humans. By …
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Monitoring of an urban level spreader as part of the collaborative adaptive management process
… high flows caused by stormwater runoff after a rain event are a major cause of stream impairment in urbanized watersheds. The Hinkson Creek CAM (Collaborative Adaptive Management) approach is doing long-term monitoring of a level spreader system in the Hinkson Creek watershed to determine the …
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