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 “"fuel moisture"”.
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Remote sensing to characterise vegetation fuel moisture content in the UK uplands
… are likely to start can become more accurate. Fuel moisture content (FMC) is one of the most important factors influencing wildfire risk, as it controls the probability of ignition and the rate of spread of a fire. This work aims to assess the potential of calibrated time-series Sentinel-2A …
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Fuel moisture and fuel dynamics in woodland and heathland vegetation of the Sydney Basin
… and in some vegetation types up to 70 % of fuel consumed during a fire can be live. Research into fire behaviour and fuel dynamics has been minimal. To address this issue this thesis investigated the principal factor affecting the ease of ignition and rate of combustion of individual fuel …
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Management Tools for Prescribed Burning for Tallgrass Prairie Restoration at the Lewisville Lake Environmental Learning Area
… prairie grasses respond favorably to burning. Fuel loads and fuel models vary by scale and survey method. One- and 10-hour fuel moisture can be predicted using a statistical model; 100- and 1,000-hour fuel moisture cannot. Historic weather data suggests that burning can occur when it is most …
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Microhabitat Temperature Variations and the Post-Burn Response of Vegetation in the Edwards Plateau of Texas
… the impact of: (1) microhabitat differences in fuel load and fuel moisture on temperature and (2) microhabitat temperature variations on vegetational response. The results of this study indicate that fire temperatures are generally higher under tree canopies (73°C-102°C) than in grasslands …
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Beaver moderated fire resistance in the North Cascades and potential for climate change adaptation
… resistance to wildfire by increasing soil and fuelmoisture in riparian zones and surrounding uplands, hindering fuel ignition and fire rate of spread. To test this hypothesis, beaver impounded sites and paired undammed reference reaches were compared using field moisture surveys, GIS analysis …
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Design and testing of a sawdust dryer and a suspension sawdust burner
… by Arrowhead Forest Products and a sawdust-fueled suspension burner developed at Virginia Tech. The dryer was designed to process green sawdust at small to medium-sized sawmills and pallet mills. The sawdust burner was designed to be the heat source for the dryer and serve more general …
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Phase-based soil moisture sensing using radars and passive backscatter tags
Soil moisture sensing is important to optimize water usage in agriculture and fire prevention. In agriculture, it enables smart irrigation systems to use water efficiently, reduce wastage, and enhance crop yields. For fire prevention, accurate soil moisture data improves estimates of fuel moisture …
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Development Of A Unified Approach (An Index) To Study The Particulate, Carbon Monoxide Emissions And The Combustion Efficiency Using Field And Laboratory Investigations
… uses biomass and other renewable sources of fuel for cooking and other heating purposes. The Biomass is not burnt efficiently which results in the release of pollutants which are the products of incomplete combustion. Previously, studies have been done to study the PM2.5, CO, methane and non …
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Visualising convective heat transfer in a propagating wildland fire
… heat transfer, especially in fine porous fuels. This thesis investigates the complex contributions of convective heating and cooling and their influence on the rate of spread (ROS) in bushfires through a combination of physics-based numerical simulations and experimental methods. Numerical …
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Fuel characterization using remote sensing in support of large-scale wildfire management in the Cerrado biome
… changes in the fire regime. Managing fuels is one of the most important options we have for reducing wildfire’s negative impacts on society and the environment and amplifying positive ones on fire-dependent flora. Large areas such as Cerrado often require remote sensors to characterize …
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Development of a dynamic modelling of biomass boilers using flownex
… in firing renewable and carbon neutral fuel sources such as biomass. The present work focusses on developing a dynamic model of a unique hybrid water-tube—fire-tube boiler. The numerical model has been developed using Flownex, a one-dimensional thermohydraulic simulation software with …
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Examining Atmospheric and Ecological Drivers of Wildfires, Modeling Wildfire Occurrence in the Southwest United States, and Using Atmospheric Sounding Observations to Verify National Weather Service Spot Forecasts
… all wildfire types. Measurements describing fuel conditions (i.e., 100 and 1000-hour dead fuel moisture, energy release component) were the most important predictors when considering all wildfire types and sizes. However, a combination of fuels and atmospheric predictors (i.e., lightning, …
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The differences in grass species composition and the effects on fire behaviour in an African mesic savanna
… on fire behaviour through their differing fuel characteristics related to each species specific phenologies and morphologies. Climate change and elevated atmospheric CO2 levels may influence the trajectory of grassy ecosystems over a large spatial and temporal scale. These dynamics operate …
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Spatiotemporal Distribution of Siberian Wildfires and Impacts from Meteorological and Climatic Factors
… Emissions Database version 5 (GFED5), surface fuel datasets, atmospheric reanalysis data, and multiple climate indices during 2001 to 2020, this study systematically investigated the regional differences in wildfire activity across Siberia, the local meteorological controls, and the pathways of …